In this article, we will tell you what you need to know before specifying. Plus, we’ll provide alternatives that can give you a similar weathered look without relying on the same environmental conditions.

Key takeaways

• Weathering steel is a low-alloy steel designed to form a rust-like patina.
• Coastal air, high humidity, dense vegetation and exposure to snow or de-icing salt can create conditions where weathering steel performs poorly.
• As the patina develops, rust-colored runoff will stain nearby concrete, stone and pavers, particularly during the early stages of weathering.
• Weathering steel’s performance depends on environmental conditions. Prolonged moisture and salt exposure will accelerate corrosion and shorten its service life.
• Hot-dip galvanized steel with a reactive color treatment can provide a similar weathered appearance without relying on weathering steel.

Weathering steel fence along a bridge.

How does it work?

Weathering steel reacts with moisture and oxygen in the air, causing its surface to rust. Over time, this rust can form a protective layer that can slow further corrosion.

For that layer to develop properly, the steel needs regular wet and dry cycles. If it stays wet for extended periods, the protective patina will not stabilize and corrosion can continue at a faster rate than other types of steel.

What is it made of? Which ASTM specs apply?

Weathering steel gets its properties from alloying elements added to the base steel. These can include copper, chromium, nickel and phosphorus. Their specific amounts vary by grade and specification. The most common grades you’ll come across are:

Weathering steel bleeding on concrete

Weathering steel vs. regular steel

Weathering steel and regular carbon steel differ in their composition and how surface corrosion develops. Weathering steel contains alloying elements that influence rust formation, while regular carbon steel typically develops a less adherent rust layer. Neither material provides the same corrosion protection as hot-dip galvanized steel, which uses a zinc coating to provide barrier and cathodic protection.

Galvanized steel provides both barrier protection and cathodic protection, meaning the zinc coating helps protect exposed steel if the coating gets scratched. This protection can be particularly useful in wet or coastal environments where weathering steel may not develop a stable protective patina.

Disadvantages of weathering steel?

Weathering steel has four key limitations to consider when evaluating its use in a project.

1. Environment vulnerability

Weathering steel needs regular wet and dry cycles to develop a stable patina. If the steel stays wet for long periods, the patina may not stabilize and corrosion can continue.

A few environments cause real problems:

• High-chlorine environments can break down the patina, speeding up corrosion and shortening the life of the structure well before its intended lifespan.
• Coastal or high-humidity regions with salty air and areas where water tends to pool are especially risky.
• Dense vegetation traps moisture against the steel. American Electric Power found this exact combination led to serious ground-line corrosion and thinning steel walls on utility structures.
• High-precipitation or snow-heavy areas keep the steel wet more often, which means no dry cycle and no stable patina.
• Poor detailing or outdated specs, where moisture gets into joints or flat coatings trap water, often lead to what’s called pack-out corrosion, a buildup of rust in tight spots.

If the environment doesn’t give the steel regular chances to dry out, the patina won’t form properly and corrosion can take over.

Photo credit: Robert So | Pexels

2. Rust bleeding and staining

As the patina forms, rust-laden runoff can wash onto nearby surfaces. This “bleeding” stains concrete, stone, brick and adjacent surfaces, and it’s worst in the first two years while the patina is developing. For projects where appearance matters (and it almost always does), this can be a dealbreaker. Those stains are also hard to clean once they set in.

3. Maintenance considerations

Weathering steel is often described as low maintenance, but its performance depends on proper design and environmental conditions. Projects may require:

• Engineer proper drainage and drip details
• Seal or protect the surfaces nearby that could get stained
• Sometimes add gravel borders to catch runoff

These considerations can add to the design, installation and ongoing maintenance requirements.

4. Color development and sourcing

Weathering steel develops its color over time, often taking years to reach a more stable appearance. Color varies based on orientation, climate and exposure, which can make it difficult to predict the final appearance.

Weathering steel can also be harder to source than standard carbon steel. This may result in longer lead times, additional fabrication considerations and higher material costs. These considerations can add to the design, installation and ongoing maintenance requirements.

An alternative to weathering steel: Galvanized steel with natural color

For many projects, the goal is the weathered brown appearance rather than weathering steel itself. The challenge is getting that finish without relying on the environmental conditions required to develop a stable weathering steel patina.

Hot-dip galvanized steel provides corrosion protection and can perform well in wet and coastal environments. Natina Steel Solution adds natural brown tones through a Reactive Color Treatment, with color developing over weeks rather than the years associated with weathering steel. Natina provides the weathered appearance while reducing concerns associated with weathering steel, such as prolonged patina development and rust runoff onto nearby surfaces.

How Natina adds natural color to galvanized steel

Natina Steel Solution is a patented Reactive Color Treatment that reacts with the zinc coating on galvanized steel to create natural brown tones and a mottled, weathered appearance. The treatment does not add measurable thickness or compromise the galvanizing that protects the steel underneath.

Here’s how Natina addresses several of the limitations associated with weathering steel:

• Corrosion protection across different environments: Galvanized steel provides corrosion protection in a variety of conditions, including wet and coastal environments.
• Performance depends on environmental exposure.
• No rust runoff: Natina does not produce the rust-laden runoff associated with weathering steel.
• Faster color development: Natina’s color typically develops within 8 weeks, compared with the years weathering steel may need to develop its mature appearance.
• Low maintenance: Natina creates a natural weathered finish without a painted coating that can chip, peel or flake.
• Flexible application: Natina-trained crews can apply the treatment at a facility or on-site, depending on project requirements.
• Potential lifecycle cost savings: Depending on the application, Natina-treated galvanized steel may offer cost advantages when considering materials, finishing and maintenance.

For structures near sensitive landscapes, such as utility poles bordering a national forest, Natina combines the corrosion protection of galvanized steel with a natural-looking finish that helps reduce visual contrast.

Utility companies, transportation departments and park services face similar challenges. Their infrastructure must withstand environmental conditions while minimizing visual impact.

If your project calls for hot-dip galvanized steel but requires a more natural appearance, Natina can help. Contact us for expert guidance on planning your next construction project! 

Frequently Asked Questions

Does weathering steel stop rusting?

No. Weathering steel is designed to rust on purpose. The rust forms a tight, protective layer that slows further corrosion, rather than preventing rust altogether.

Does weathering steel stain adjacent surfaces?

Yes. As the patina forms, rust-laden runoff can stain nearby surfaces, including concrete, stone, brick and pavers. This staining, sometimes called bleeding, is often most noticeable during the first one to two years.

Can you use weathering steel near the coast or in humid climates?

It’s risky. Coastal air, salt, and constant humidity can prevent the patina from stabilizing, which leads to faster corrosion instead of the protection weathering steel is known for.

Is weathering steel the same as Cor-ten?

Cor-ten (also spelled Corten) is a trademarked brand of weathering steel originally developed by U.S. Steel. The names are often used interchangeably to describe the same type of material.

Is weathering steel stronger than regular steel?

Weathering steel is a high-strength, low-alloy steel. Its strength depends on the specific grade and can be comparable to conventional structural steel.

What makes weathering steel last longer or wear out faster?

Weathering steel can last for decades under suitable environmental conditions. However, prolonged moisture, coastal exposure and de-icing salts can accelerate corrosion and shorten its service life.

What is an alternative to weathering steel?

Hot-dip galvanized steel treated with Natina Steel Solution offers a similar weathered appearance while retaining the corrosion protection of galvanizing. The treatment develops natural brown tones in weeks rather than years, and the galvanized steel can perform well in wet and coastal environments, depending on exposure conditions.

Can galvanized steel be made to look like weathering steel?

Yes. Natina Steel Solution uses a Reactive Color Treatment to create a natural, weathered earthy finish on galvanized steel. The color typically develops within 8 weeks rather than the years weathering steel may require.

The post Weathering steel: What it is, downsides and a better alternative appeared first on Natina.

Why some rocks turn black, red or brown

Rock varnish | Photo by Eclipse Chaser/Pexels

You have probably noticed the dark, coated look of rocks in desert landscapes.

The most common colors are deep black, rust-red, orange and warm brown. These coatings are called desert varnish. They form over thousands of years as a thin layer of clay minerals, manganese and iron oxides gradually builds up on exposed rock surfaces.

But what is desert varnish, why does it form and why does it matter?

Key takeaways

• Desert varnish is a thin coating of clay minerals, manganese and iron oxides that builds up on rock surfaces.
• It forms when dust and minerals settle on rock and bacteria may help bind them to the surface.
• It grows incredibly slowly, often just a few micrometers per thousand years.
• The color tells you what’s in it: black means more manganese, red or orange means more iron, and tan or brown means a mix of both.
• Scientists still debate whether bacteria are essential to the process or just along for the ride.
• Ancient petroglyphs were carved by chipping through the varnish to expose lighter rock underneath.
• You don’t have to wait thousands of years to get the look. A reactive color treatment can create a similar weathered appearance in a fraction of the time.

What is desert varnish? 

Desert varnish is a thin, slow-growing coating that forms on exposed rock surfaces.

The name suggests that it only forms in deserts, but rock varnish can develop in a range of climates, including dry deserts and more temperate regions. For this reason, scientists often use the broader term rock varnish.

Rock varnish forms where exposed rock collects dust and minerals from the surrounding environment. Bacteria may also help bind manganese and iron oxides to the surface. Over thousands of years, these materials build into coatings that range from tan and reddish brown to deep black.

Scientists have identified at least 14 types of rock coatings. Desert varnish is one of them, and its exact composition can vary depending on the environment where it forms.

What is desert varnish made of? 

Desert varnish is made mostly of windblown clay, along with manganese and iron oxides that give the coating its color.

Desert varnish on cliff in Escalante, Utah | Photo by Donald Giannatti/Unsplash

One of its most unusual features is its high manganese content. Manganese concentrations in desert varnish can be 50 to 300 times higher than those in the surrounding soil.

That difference raises an important question: how does so much manganese end up concentrated in such a thin coating?

Dust and minerals from the surrounding environment settle on exposed rock over time. Bacteria may help bind manganese and iron oxides to the surface, allowing the coating to build up layer by layer. Exactly how this process works is still debated, particularly the role bacteria play.

How does desert varnish form? 

Desert varnish forms as dust and minerals settle on exposed rock and gradually accumulate on the surface. The process happens over three general stages:

1. Dust and minerals settle on the rock. Wind and water carry these materials to exposed rock surfaces.
2. Iron and manganese oxides accumulate. These minerals gradually build up and bacteria may help bind them to the rock.
3. The coating develops over time. Continued mineral buildup and chemical changes create the dark, weathered appearance associated with desert varnish.

The process is extremely slow. Over 1,000 years, desert varnish may grow by only 1 to 40 micrometers. That’s far thinner than a human hair.

The color depends on the minerals in the coating:

Scientists debate how much bacteria contribute to the formation of desert varnish. One question is whether microbes actively help build the coating or whether it forms mainly through chemical processes.

The debate goes back to a 1981 study by researchers Ronald Dorn and Theodore Oberlander, published in Science, which proposed that bacteria play an active role in varnish formation.

Since then, researchers have continued to study how much of the process can be explained by microbial activity and how much results from inorganic chemistry.

A 2021 study from Caltech provided further evidence that desert varnish may preserve chemical traces of microbial activity. The findings suggest microbes may be involved, but scientists are still figuring out what role they play, if any.

Why does this matter so much to scientists?

The answer changes how scientists understand the coating. If desert varnish forms mainly through chemical processes, it is a slow mineral process. If microbes contribute to its formation, the coating may also preserve evidence of microbial activity in harsh environments.

That possibility also matters in the search for life beyond Earth.

If microbial activity can leave recognizable chemical signatures in rock varnish, similar coatings could potentially help scientists identify evidence of past life elsewhere. This is one reason researchers have taken an interest in rock varnish-like coatings observed on Mars.

Petroglyphs in Moab, UT | Photo by Chris Kofoed/Unsplash

Where is desert varnish found?

Desert varnish forms on stable, erosion-resistant rock, often sandstone, in arid and semi-arid regions.

You can find it across the Colorado Plateau and on the Messak Settafet plateau in the Sahara Desert. Similar coatings also occur in coastal, semi-arid and some temperate environments, showing that desert varnish is not limited to deserts.

Mars has also shown potential rock varnish-like coatings, giving researchers another reason to study how these coatings form on Earth.

Why is sandstone commonly coated with desert varnish?

Sandstone is durable enough to remain exposed for long periods, giving varnish time to build up. Its surface also provides conditions that can support the accumulation of the minerals and materials that make up the coating.

Softer rocks may erode too quickly for a coating to remain intact. Harder, smoother surfaces may accumulate less material. This helps explain why sandstone cliffs and canyon walls often show some of the clearest examples of desert varnish.

Messak Settafet plateau | Image credit: NASA Earth Observatory/USGS

Before paper, there was patina

Long before scientists studied desert varnish, people were using its dark surface to create rock art. By carving through the coating, they could create images that would remain visible for thousands of years.

How is desert varnish connected to ancient rock art?

Many petroglyphs, or rock carvings, were made by chipping away the dark varnish to expose the lighter rock underneath. The contrast made the carved lines visible and preserved them on the rock surface.

New Mexico’s Petroglyph National Monument contains about 25,000 rock carvings attributed to Puebloan people and early Spanish settlers. Many show the contrast between the dark varnished surface and the lighter rock exposed by carving.

The Wadi Mathendous archaeological site in the Libyan Desert also contains ancient engravings of wildlife, including rhinoceroses, crocodiles, giraffes, and elephants. Some of these petroglyphs are estimated to be around 8,000 years old, dating to a period when the Sahara was much wetter than it is today.

Petroglyph National Monument | Photo credit: NPS/Dale Kissner

What rock varnish can teach us

Desert varnish may preserve clues about past environmental conditions. Researchers have studied its layers for evidence of changes in climate and other environmental factors, although the extent to which varnish can reliably record those changes is still being investigated.

It also offers a possible record of microbial activity in harsh environments. If microbes contribute to varnish formation, the coating may preserve chemical evidence of life on exposed rock.

Can you recreate the desert varnish look?

Yes! You can achieve a similar earthy, weathered appearance in a fraction of the time.

That’s where Natina comes in. Our patented Reactive Color Treatment develops a natural, earthy finish in weeks. Unlike paint or stain, Natina’s non-toxic, environmentally safe treatment reacts with the material to create a low-maintenance finish with natural color variation.

Natina helps reduce visual contrast across a range of applications, including highway infrastructure, guardrails, retaining walls, wildlife crossings, utility structures, bridges and landscape projects.

	Desert varnish	Natina Reactive Color Treatment
Time to develop	Thousands of years	Up to 8 weeks
Where it works	Stable, hard rock; primarily arid climates	Rock, concrete and steel; wide range of climates
Appearance	Red, orange, brown and black tones influenced by mineral composition and exposure	Natural earth tones with rich browns, gray undertones and organic color variation
Maintenance	Naturally occurring; maintenance not applicable	Low maintenance; no painting or sealing required

Natina is already being used on projects ranging from guardrails and retaining walls to wildlife crossings and park features. Examples include a rock bench in Yosemite and a retaining wall in Shoshone.

“I was very pleased with the results of the solution and found it to be appropriate and beneficial for this type of use.” — Brad Lewis, Yosemite National Park

Explore how Natina’s Steel, Rock and Concrete Color Solutions are being used on projects across different industries at natina.com/projects.

A natural finish in a fraction of the time.

Natina offers a practical way to reduce visual contrast while creating rich, earthy tones on galvanized steel, rock and concrete. With a low-maintenance finish and natural color variation, Natina helps projects meet aesthetic goals without relying on paint or stain.

Have a project in mind? Request a quote or connect with our team to explore how Natina can help.

Frequently Asked Questions

What is desert varnish?

Desert varnish is a naturally occurring coating that forms on exposed rock surfaces over thousands of years. It contains clay minerals, manganese and iron oxides, along with other materials from the surrounding environment.

What is desert varnish made of?

It consists mainly of windblown clay minerals, manganese and iron oxides. It can also contain smaller amounts of silica and other elements.

How long does desert varnish take to form?

Desert varnish forms extremely slowly, often taking thousands of years. In some environments, the coating grows by only a few micrometers per thousand years.

What causes desert varnish to form?

Dust, moisture, minerals and microorganisms can all contribute to the formation of rock varnish. Manganese and iron oxides gradually accumulate on exposed rock surfaces over long periods.

Is desert varnish caused by bacteria?

Scientists still debate the role bacteria play. Some research suggests that bacteria help bind minerals to the rock, while other research suggests the coating could form through inorganic chemical processes. A 2021 Caltech study provided evidence supporting microbial involvement, but the question remains open.

Is desert varnish only found in deserts?

No. Similar rock coatings can form in semi-arid, coastal and some temperate environments. Scientists often use the broader term rock varnish because the coating is not limited to deserts.

Why are some desert rocks black?

Dark or black varnish is associated with higher concentrations of manganese oxides. The mineral composition of the coating affects its color, which can range from tan and brown to red, orange, and black.

Why is desert varnish important?

Desert varnish can provide information about past environmental conditions and microbial activity. It also has cultural significance because many ancient petroglyphs were created by removing the dark coating to expose lighter rock underneath.

How do you recreate desert varnish?

Reactive color treatments can create a similar weathered appearance on materials such as steel, rock and concrete in a matter of weeks rather than thousands of years.

What types of projects use natural-looking rock or steel finishes?

These finishes can be used on highway infrastructure, retaining walls, guardrail systems, wildlife crossings, utility structures, parks, bridges and landscape projects where construction calls for a more natural appearance.

How does Natina help achieve a desert varnish appearance?

Natina develops natural, earthy tones on galvanized steel, rock and concrete. The treatment reacts with the material to create a mottled finish with organic color variation. Full color development can take up to eight weeks, helping new structures achieve a more natural appearance without waiting for nature to do the work.

Sources

1. National Park Service, Desert Varnish
2. Colorado.edu, Mystery of Desert Varnish
3. Earth.com, Messak Settafet Plateau in the Sahara Desert
4. UC Riverside, The Edge Institute, Desert Varnish Study
5. Dorn, R.I. and Oberlander, T.M., “Microbial Origin of Desert Varnish,” Science, 1981
6. Caltech, 2021 study on the microbial origins of desert varnish
7. NASA, rock varnish-like coatings on Mars

The post The science and history of desert varnish appeared first on Natina.

Across North America, agencies, engineers and conservation groups are investing in innovative solutions that balance transportation needs with environmental stewardship. Projects like the Wallis Annenberg Wildlife Crossing and Willard Springs Wildlife Overpass demonstrate how thoughtful design can reconnect habitats, reduce wildlife-vehicle collisions and create safer travel corridors for both animals and people. According to the Federal Highway Administration (FHWA), wildlife crossings play an important role in improving habitat connectivity and reducing conflicts between wildlife and transportation networks.¹

What is a wildlife crossing?

A wildlife crossing is a structure designed to help animals safely cross human-made barriers such as highways, roads, railways and canals.

Common types of wildlife crossings include:

• Wildlife overpasses or land bridges
• Wildlife underpasses and tunnels
• Culverts designed for animal movement
• Rope bridges for arboreal species
• Aquatic crossings for fish and amphibians

These structures are often paired with wildlife fencing that guides animals toward designated crossing points, helping reduce wildlife-vehicle collisions and improve crossing effectiveness.²

Not every wildlife crossing looks the same

Wildlife crossings are not one-size-fits-all.

Different species prefer different crossing types based on their behavior, habitat and comfort level. According to the Wyoming Game and Fish Department, some animals are more likely to use open overpasses with natural vegetation and visibility, while others prefer underpasses, tunnels or culverts. Factors such as vegetation, noise levels, lighting and available cover can all influence whether animals use a crossing successfully.³

As a result, modern wildlife crossings are designed around target species, local habitats and migration patterns rather than a standard design approach.

Wallis Annenberg Wildlife Crossing: A global benchmark

The Wallis Annenberg Wildlife Crossing is one of the largest wildlife overpasses in the world.⁴

Spanning Highway 101 in Los Angeles County, California, the crossing reconnects habitat within the Santa Monica Mountains, creating safe passage for mountain lions, deer, bobcats and other wildlife.

Notable features include:

• Native vegetation designed to replicate surrounding habitat
• A crossing width of approximately 210 feet
• Public-private partnerships supporting project funding
• Collaboration among Caltrans, the National Park Service, the Santa Monica Mountains Conservancy, the Annenberg Foundation and conservation organizations

The project has become an international model for wildlife connectivity and habitat restoration in urbanized environments.⁴

Willard Springs Wildlife Overpass: Safety meets conservation

The Willard Springs Wildlife Overpass, located along Interstate 17 near Flagstaff, Arizona, addresses a corridor with a long history of wildlife-vehicle collisions.⁵

Led by the Arizona Department of Transportation (ADOT) in partnership with the Arizona Game and Fish Department (AZGFD), the project improves driver safety while restoring migration routes for elk, deer and other wildlife.

The crossing includes:

• A dedicated wildlife overpass
• Extensive wildlife fencing
• Habitat connectivity improvements
• Long-term wildlife monitoring

Projects like Willard Springs demonstrate how transportation safety and wildlife conservation can work together.

Other notable wildlife crossings across North America

Wildlife crossings are becoming increasingly common throughout North America as agencies recognize their environmental and safety benefits.

Banff National Park, Canada

Banff National Park is home to one of the most studied wildlife crossing systems in the world. Wildlife overpasses, underpasses and fencing have reduced wildlife-vehicle collisions by more than 80 percent, according to Parks Canada.⁶

I-90 Snoqualmie Pass, Washington

The I-90 Snoqualmie Pass East Project includes multiple wildlife crossings that support species ranging from elk and deer to amphibians and smaller mammals.⁷

Robert L.B. Tobin Land Bridge, Texas

Located in San Antonio, this innovative crossing combines habitat connectivity, recreational space and urban design.

Trapper’s Point Wildlife Crossing, Wyoming

One of the earliest large-scale wildlife crossing projects in the United States, Trapper’s Point helps maintain critical migration routes for pronghorn and mule deer.³

Who is involved in wildlife crossing projects?

Successful wildlife crossings require collaboration among multiple organizations and disciplines.

Typical stakeholders include:

• The Federal Highway Administration (FHWA)
• Departments of Transportation (DOTs)
• Federal agencies such as the U.S. Forest Service, Bureau of Land Management and National Park Service
• State wildlife agencies
• Conservation organizations and nonprofits
• Engineers and transportation planners
• Landscape architects and ecologists
• Local governments and communities

This collaboration helps ensure animal crossings meet transportation, environmental and community objectives.

Why wildlife crossings matter

Wildlife crossings provide measurable benefits for both wildlife and people.

Benefits include:

• Reduced wildlife-vehicle collisions
• Improved driver safety
• Restored habitat connectivity
• Protection of wildlife migration routes
• Improved biodiversity and ecosystem health
• Support for environmental and regulatory goals¹

They also help agencies and project teams address growing public expectations for environmentally responsible transportation projects.

Frequently asked questions about wildlife crossings

Do wildlife crossings actually work?

Yes. Research from Parks Canada and transportation agencies across North America shows that wildlife crossings combined with fencing can reduce wildlife-vehicle collisions by more than 80 percent in some locations.⁶

What animals use wildlife crossings?

Species vary by region but commonly include deer, elk, moose, mountain lions, bears, bobcats, pronghorn, reptiles, amphibians and smaller mammals.

Why is fencing important in wildlife crossings?

Wildlife fencing helps guide animals toward safe crossing locations. Wildlife fencing plays a critical role in directing animals to designated crossing points and maximizing the effectiveness of wildlife crossings.²

Why do some wildlife crossings go over roads while others go under them?

The design depends on the species being protected and the surrounding landscape. Larger animals such as elk, deer and pronghorn often prefer open overpasses, while some species are more comfortable using underpasses, tunnels or culverts. Wildlife biologists evaluate migration routes, habitat conditions and animal behavior to determine the most effective design.³

Where are wildlife crossings most needed?

Wildlife crossings are most effective in areas where roads, highways or transportation corridors intersect major migration routes, wildlife corridors or sensitive habitats.

Where Natina fits in

Wildlife crossings are not just about the overpass or underpass. They are about all the supporting elements that make these projects successful.

Wildlife fencing, guardrails, retaining walls, sound barriers, structural steel, rock stabilization and drainage features all contribute to a project’s performance, appearance and acceptance by the surrounding community.

As wildlife crossings become more sophisticated, project teams are paying closer attention to how these elements fit within the surrounding landscape.

Natina’s reactive color treatment helps steel, concrete and rock features blend into their environment with natural, earthy brown tones while maintaining the durability of the underlying material. Rather than drawing attention to fencing, steel or concrete, Natina helps these elements complement the surrounding landscape.

Where Natina can be used

• Wildlife fencing and animal guidance systems
• Chain-link and perimeter fencing
• Guardrails and roadside safety barriers
• Structural steel on overpasses and crossings
• Concrete retaining walls, abutments and sound barriers
• Rock, riprap and slope stabilization features
• Utility and maintenance access structures

Why it matters

Wildlife crossing projects are designed to reconnect habitats while minimizing impacts on the surrounding environment.

Natina helps project teams reduce visual impact, support environmental objectives and create a more natural appearance for the fencing, steel, concrete and rock features that make these projects possible. It is environmentally safe, low maintenance and suitable for use around sensitive ecosystems.

Connect with Natina

Planning a wildlife crossing, transportation corridor improvement or environmentally sensitive project?

Natina works with transportation agencies, engineers, landscape architects and contractors to help fencing, steel, concrete and rock features blend into their surroundings while maintaining long-term performance.

Contact Natina to discuss your project and learn how we can support your environmental and aesthetic goals.

866-797-6589
info@natina.com
www.natina.com

References

1. Federal Highway Administration (FHWA), Wildlife Crossings Program.
   https://highways.dot.gov/environment/wildlife-crossings
   
2. Western Transportation Institute, Wildlife Crossing Research.
   https://westerntransportationinstitute.org/research_projects/wildlife-crossings/
   
3. Wyoming Game and Fish Department, Over, Under, Around or Through?.
   https://wgfd.wyo.gov/wyoming-wildlife/wyoming-wildlife-magazine/over-under-around-or-through
   
4. National Wildlife Federation, Wallis Annenberg Wildlife Crossing.
   https://www.nwf.org/Our-Work/Wildlife-Conservation/Wildlife-Crossings/Wallis-Annenberg
   
5. Arizona Department of Transportation, Willard Springs Wildlife Overpass.
   https://azdot.gov/projects/northcentral-district-projects/interstate-17-wildlife-overpass
   
6. Parks Canada, Banff Wildlife Crossings.
   https://parks.canada.ca/pn-np/ab/banff/nature/conservation/eco/corridors
   
7. Washington State Department of Transportation, I-90 Snoqualmie Pass East Project.
   https://wsdot.wa.gov/construction-planning/major-projects/i-90-snoqualmie-pass-east
   
8. U.S. Forest Service, Wildlife Connectivity Resources.
   https://www.fs.usda.gov/managing-land/wildlife-crossings
   

Image credits

• Hero image: Aerial wildlife crossing over highway. Photo credit: bbsferrari/Getty Images.
• Turtle crossing warning sign along a roadway. Photo credit: Tom Fisk/Pexels.
• Square wildlife underpass crossing beneath a roadway: Photo credit: CreativeNature_nl/Getty Images
• Wildlife overpass spanning a highway corridor. Photo courtesy of Natina.
• Wildlife crossing overpass over the Trans-Canada Highway, designed to support wildlife migration and habitat connectivity. Photo credit: Steve Gadomski/Getty Images.
• Aerial view of a wildlife crossing structure spanning a highway. Photo credit: bbsferrari/Getty Images.

The post Wildlife crossings are evolving and the details matter more than ever appeared first on Natina.

Across the United States, utilities are rethinking the materials used to support transmission and distribution systems. While wood poles have long been the standard, growing concerns around wildfire risk, durability, lifecycle cost and environmental impact are accelerating the shift toward galvanized steel utility structures.

Why utilities are moving to galvanized steel structures

Galvanized steel poles and structures address many of the risks associated with wood while supporting modern grid hardening initiatives. Since steel does not burn, galvanized steel structures significantly reduce the risk of ignition and structural failure during wildfire events, making them especially beneficial in fire prone regions. According to the California Public Utilities Commission’s Wildfire Mitigation Plans, this non combustible characteristic is a key advantage for utilities seeking to minimize fire related vulnerabilities.

In addition to fire resistance, galvanized steel offers a notably longer service life. Many galvanized steel utility poles achieve lifespans up to 80 years or more, depending on environmental exposure. This extended durability reduces replacement cycles and lowers total cost of ownership over time, as noted by the American Galvanizers Association. Steel is also immune to rot, insect activity and biological decay, and hot dip galvanization provides corrosion protection across a wide range of climates, including high humidity and coastal regions, according to the Federal Highway Administration.

Unlike wood, galvanized steel maintains consistent structural properties and predictable performance across installations. This uniformity simplifies engineering, inspection and long term asset management, ensuring utilities can rely on a material that behaves consistently throughout its service life.

Lifecycle cost and reliability advantages

While galvanized steel structures may carry a higher upfront cost than wood, utilities are increasingly shifting their focus toward lifecycle performance rather than initial expense. When long term factors such as reduced inspection frequency, fewer replacements, improved safety outcomes, lower wildfire risk and greater overall reliability are considered, galvanized steel often provides a significantly lower total cost of ownership over the life of the structure. This broader lifecycle perspective aligns with findings from the National Renewable Energy Laboratory (NREL), which highlights how durable materials contribute to improved long term system economics.

Source: National Renewable Energy Laboratory (NREL)

Supporting permitting and community expectations

Public and regulatory scrutiny of utility infrastructure continues to increase, particularly in scenic, residential and environmentally sensitive areas. Utilities are now expected to consider visual impact alongside performance and safety.

Steel structures provide a durable foundation, and when paired with thoughtful design, aesthetics and mitigation strategies, they support smoother permitting and stronger community acceptance.

Where color treatments come into play

As utilities transition from wood to steel, visual considerations often emerge. Bare, shiny galvanized steel can appear bright or industrial in certain settings.

In response, some utilities incorporate reactive surface treatments that work with galvanized steel to soften glare, naturalize the structures and improve visual integration. Natina’s earth-tone brown finish is designed specifically for this purpose. Unlike paint or coatings, Natina does not sit on top of the surface but reacts with the steel to create rustic brown tones while preserving corrosion protection. This allows utilities to adopt steel infrastructure without sacrificing visual compatibility in sensitive or high-visibility areas.

The future of utility infrastructure

The move away from wood poles reflects a broader shift toward resilient, fire-resistant and long-lasting infrastructure. Galvanized steel structures are increasingly specified across transmission, distribution and substation projects nationwide.

As grid demands increase and environmental conditions grow more extreme, utilities are prioritizing materials that support safety, durability, lifecycle performance and community expectations.

Learn more

Explore how Natina enhances utility structures across transmission, distribution and substation projects on our steel structures page.

The post Why galvanized steel utility structures are replacing wood poles appeared first on Natina.

When it comes to securing large areas efficiently, whether it’s a commercial property, municipal site or industrial facility, chain–link and security fencing continues to set the standard.

It’s not just a practical solution, but with the right coating and color, it can also deliver a refined, look that complements its surroundings.

Below, we’re going to weave through the pros and cons (see what we did there?) of modern chain–link systems and explore why our rustic brown finish offers more than just aesthetic appeal.

Five Benefits of Chain–Link and Security Fences

1. Cost–Effective Protection

Chain–link remains one of the most economical fencing materials. Its combination of affordability, durability and quick installation makes it ideal for schools, warehouses, construction sites and public facilities.¹

2. Tough–As–Nails Durability

Unlike fences that warp, rot, peel and demand annual attention, a quality chain–link fence is built for the long haul. Galvanized steel remains the industry standard for corrosion resistance and strength, providing reliable protection against rust and extreme weather.² Its proven durability makes it a smart choice for projects that demand both resilience and longevity.

3. Low Maintenance

Chain–link doesn’t make a big fuss. Just check the fence now and then to ensure its structural integrity, and you’re set.² If you pick a finish that is engineered to avoid flaking or peeling (like Natina), you’re golden. That reliability translates to fewer operational interruptions, minimal maintenance and lower long–term costs.

4. Flexible, Functional and Versatile

Chain–link systems can be customized to meet diverse project needs, such as construction barriers and high–security enclosures. Options include various mesh sizes, gauges, heights and coatings, making it adaptable to nearly any site layout.³

5. Visibility and Safety

With its open mesh design, chain–link fencing doesn’t block your view. That helps if you like to keep an eye on the other side, such as at a ballfield or zoo. This is also valuable for security teams and camera systems so that facilities can monitor access points without sacrificing boundary definition.⁴

Also, since wind can go through it, there’s less “sail effect” (which means less risk of wind–storm damage) compared to solid panels.⁵

Three Key Considerations

1. Privacy and Visual Design

Because chain–link and security fencing is transparent by nature, it may not suit projects requiring privacy and curb appeal. However, adding a color on the steel can definitely help with visual mitigation, making it fit in with its environment.⁶

2. Enhanced Security Features

In areas that need extra security like highways, additional deterrents such as barbed wire extensions, bottom tension wires or anti–climb mesh can increase security while preserving the fence’s lightweight structure.⁷

3. Color and Finish Options

Gone are the days when galvanized gray was the only option! While commercial buyers can select from vinyl or powder coatings, there’s a more environmental and lasting way to get that earthy brown finish that delivers aesthetic appeal and prevents rust, flaking or peeling. Learn how below.

How to Make Chain-Link Easy on the Eyes

Transforming chain–link and security fencing into something that blends seamlessly with its surroundings while meeting industry standards is simpler than you might think.

Natina Reactive Color Treatment offers a cost–effective solution to elevate the look of standard fencing. Used on millions of square feet nationwide, Natina delivers the look of a mottled and earthy finish, without the price tag of vinyl, paint or powder coating.

We do it through a natural reaction that creates a rich, mottled brown finish that’s both durable and distinctive. The result is a warm, earthy brown tones that harmonizes beautifully with all environments — urban, rural or industrial. Plus, our color treatment is environmentally friendly and is safe around plants, wildlife and waterways.

Let’s Link Up

Contact us today for expert guidance on planning your next construction project.

Sources

¹Sharon Fence Distributors
²Hurricane Fence Inc.
³Broward County Fence
⁴Constrofacilitator
⁵LS Building Products
⁶Fence This Yard
⁷Chain Link Fence Manufacturers Institute

The post Chain-Link and Security Fencing | Durable Design Meets Reliability appeared first on Natina.

Overhead view of a Natina-treated lattice tower.

Materials That Meet Modern Engineering Standards

Imagine a line of power poles stretching across a remote ridgeline. The sun shines, birds chirp and all seems calm. Suddenly, the wind picks up and lightning strikes igniting dry brush. A wildfire erupts. In moments, that serene landscape becomes a battleground against nature’s fury.
If those poles are wooden, the outcome might be dire.

This scenario underscores why grid hardening has become a nationwide imperative.

What Is Grid Hardening?

Grid hardening is preparing utility systems to handle disruption before it strikes. By designing infrastructure to withstand threats like wildfires, hurricanes and ice storms, utilities can significantly limit disruptions and restore power faster. It also means responding quickly with the right materials and deploying to restore power safely. When done right, grid hardening helps utilities protect what matters, deliver reliable service and support energy demand in an increasingly electrified world.¹

Natina-treated pole installed for grid hardening and durability.

The Limitations of Wooden Poles

Wooden utility poles have long been a staple due to their affordability and ease of installation. However, they present several challenges:

• Fire Risk: Wood is combustible, posing significant hazards in wildfire-prone regions.
• Decay and Pests: Susceptible to rot, insects and environmental degradation.
• Variable Lifespan: Many utilities report average service lives between 30 to 50 years.²
• Environmental Concerns: Treated wood can leach chemicals into the soil, raising ecological issues.

These factors contribute to increased maintenance costs and potential service disruptions.

The Advantages of Galvanized Steel

Galvanized steel poles offer a reliable alternative, addressing many of the shortcomings of wood:

• Longevity: Lifespans of 50 to 80 years depending on conditions.³
• Fire Resistance: Non-combustible, reducing wildfire risks.
• Durability: Resistant to pests, rot and environmental wear.
• Lower Maintenance: Requires less frequent inspections and treatments.
• Environmental Benefits: Recyclable and free from harmful chemical treatments.

The long-term savings and reliability make galvanized steel an attractive option for modern infrastructure.⁴

Addressing Aesthetic Concerns

Despite their functional benefits, galvanized steel poles have faced criticism for their shiny, industrial appearance, which can clash with natural landscapes and community aesthetics.

Introducing Natina: Blending Strength with Beauty

Natina offers a solution that marries the durability of galvanized steel with aesthetics. Our proprietary treatment reacts with the galvanized surface to produce a rustic brown finish, allowing poles to blend seamlessly into their surroundings.

Benefits include:

• Climate agnostic: Performs in dry, wet, humid or coastal areas
• Enhanced Aesthetics: Achieves a rustic look that complements natural environments.
• Preserved Durability: Maintains the protective qualities of galvanized steel.
• Eco-Friendly: Utilizes environmentally safe processes.
• Cost-Effective: Reduces the need for additional coatings or frequent replacements.⁵

With Natina, utilities no longer have to choose between resilience and aesthetics. They can have both.
And with the right materials, like Natina, resilience doesn’t have to come at the expense of design. You can strengthen the grid and preserve the view.

Discover how Natina is redefining energy infrastructure aesthetics. Visit How Natina Impacts Energy & Utilities to learn more.

Crews install Natina-treated lattice tower section using crane in mountainous terrain.

Footnotes:
1. Utility Pole Maintenance and Upgrades Resilience Investment Guide, U.S. Department of Energy
2. Estimated Service Life of Wood Poles, Woodpoles.org
3. Steel Distribution Poles, American Galvanizers Association
4. Take a Second Look at Steel: Hot-Dip Galvanized Steel Sustainable, American Galvanizers Association
5. Steel Utility Poles Versus Wood, Steel Times International

The post Grid Hardening Starts Today appeared first on Natina.

Natina-treated Mesh | Photo by Apex RFM

Photo by Fleur

Geotechnical engineering is where earth science meets adventure! This specialized field is all about understanding the earth beneath our feet and how it interacts with the structures we build — projects ranging from bridges and tunnels to buildings and roadways. One critical area within this field is the management of natural hazards, such as landslides and rockfalls. This is where rockfall mesh (something we at Natina specialize in coloring!) comes into play, protecting both people and property from the dangers posed by falling rocks. 

Understanding Geotechnical Engineering and its Aesthetics 

So, who’s responsible for this type of infrastructure? A geotechnical engineer! And there’s a specific type of person that thrives in this career. They’re the ultimate problem-solvers with a knack for curiosity! They’re investigative, analytical, and logical thinkers, always asking “why?” and “how?” They’re also super friendly and team-oriented. In other words, they’re brainy and approachable — the perfect combo!¹

Now, what do they actually do? These Earth detectives dive deep into the behavior of soil, rock, and other materials lurking beneath the ground. They apply scientific principles and engineering techniques to figure out how these materials behave to ensure structures like roads, buildings, and bridges are safe and sound.²

Photo by Kelly

Geotechnical engineering is a big field, with specialists tackling different challenges. Here’s a peek at some cool roles:

Photo by Daniel Lee

• 
  

  Foundation Engineers:

  They lay the stable groundwork for structures (literally!). 

  Slope Stability Engineers:

  They keep landslides at bay — talk about needing to do a “rock solid” job! 

  Earthquake Engineers:

  They design structures that shake it off during earthquakes. 

  Investigation Engineers:

  They collect crucial data about soil and rock to predict any trouble before construction even starts. 

  Instrumentation Engineers:

  These tech-savvy experts monitor site stability in real-time. 

  Laboratory Engineers:

  They test material properties to make sure everything is up to code. 

  Geosynthetics Engineers:

  They get creative with materials like geogrids to strengthen the soil.¹

Here are a few key focus areas within geotechnical engineering: 

Soil Mechanics:

Understanding how soil behaves under various conditions, including its load-bearing capacity. 

Rock Mechanics:

Analyzing rock formations to determine their stability and suitability for construction. 

Site Investigation:

Scoping out potential problems before they happen. 

It’s obvious these engineers “rock” at their jobs, and they are essential to safe foundations, slopes, embankments, retaining structures, roadways, tunnels, levees, wharves, landfills, and other systems supported by soil or rock. Their goal: is to develop strategies to mitigate geotechnical hazards. It’s this work that’s foundational to the success of civil engineering projects, ensuring public safety and environmental sustainability by keeping everything sturdy.³

Take Alaska, for example — in its frozen lands, engineers face the unique challenge of working with permafrost. They use sensors (called thermistors) to track temperature changes in the soil, and advanced tech like satellite imagery and ground-penetrating radar helps them adjust designs accordingly, making sure everything stays solid, no matter how extreme the conditions!⁴

Rockfall Mesh: A Safety Net for Our Infrastructure 

Photo by Jonathan Schmer

Imagine you’re driving through a picturesque mountainous region. The views are breathtaking, but those towering cliffs pose a risk of rockfalls. Enter rockfall mesh, designed to catch those rogue boulders before they cause harm. 

Rockfall mesh is an engineered solution that helps prevent loose rocks and debris from tumbling onto roads, railways, and other critical infrastructure. Its benefits are numerous, including: 

Protection:

Safeguarding infrastructure and lives from falling rocks. 

Flexibility:

Adapting to different terrains and environments. 

Minimal Visual Impact:

Blending into the landscape while providing essential protection.5 (Natina specializes in this!) 
There are several types of rockfall mesh, including: 

Flexible Mesh Systems:

These absorb energy and allow rocks to fall without damaging the mesh itself. 

Rigid Mesh Systems:

Built for more extreme environments requiring enhanced strength. 

Hybrid Systems:

A combination of both flexible and rigid elements to suit various site conditions.⁶ 

Real-world case studies have showcased the success of rockfall mesh in protecting roads and communities, proving that engineering can indeed save the day!⁶

The Role of Geotechnical Engineers in Rockfall Mitigation 

Geotechnical engineers are crucial to the assessment and design of rockfall mitigation systems. They begin by evaluating the geological and topographical features of a site, identifying potential hazards, and determining the most effective type of mesh to use. This involves several steps: 

Conducting Site Assessments:

Identifying risks and understanding the conditions that could lead to rockfalls. 

Designing Mitigation Solutions:

Creating customized rockfall protection systems based on specific site characteristics. 

Collaboration:

Working with civil engineers, environmental scientists, and construction teams to ensure the successful implementation of protection measures.7

Photo by ThisisEngineering

“Engineering consultants also need to be aware of considerations unique to particular locations, such as the fact that in North Carolina most roads are owned by the state or specific localities; there are no county-owned roads in the state,” notes Joe Stanton, the assistant director for recovery at North Carolina Emergency Management, part of the state’s Department of Public Safety.⁸  

This local insight is essential for geotechnical engineers when planning projects, as it influences how responsibilities and permissions are managed. Knowing the ownership structure helps engineers coordinate more effectively with the appropriate governing bodies, ensuring that mitigation measures — such as rockfall mesh along mountainous highways — align with jurisdictional requirements and facilitate smoother project approvals and implementations. 

Steve McGugan, North Carolina’s state hazard mitigation officer, adds, “Likewise, it can be important to understand the details of potential funding sources. For example, FEMA has a disaster relief program that primarily helps individual homeowners — but the program also sets aside 5% for so-called initiative projects that can be spent on public infrastructure work.”⁸ 

This knowledge is important for engineering consultants because understanding funding avenues can unlock opportunities for additional resources to enhance safety measures and long-term resilience in infrastructure projects. By leveraging such programs, engineers can propose and implement solutions that go beyond standard requirements, ensuring robust protection against natural hazards while maximizing public funds. 

Photo by ThisisEngineering

Raising Awareness of the Profession 

Despite its importance, geotechnical engineering remains one of the lesser-known branches of civil engineering. Yet, the demand for skilled geotechnical engineers is on the rise, especially as we face the challenges posed by the nation’s degrading infrastructure, climate change, and natural disasters.³ 

What does it take to become a geotechnical engineer? A solid foundation in math and physics, problem-solving abilities, and critical thinking skills are essential. Many professionals in this field hold degrees in civil or geological engineering and may pursue further specialization through certifications or graduate studies.³  

The perks of a career in geotechnical engineering are impressive: job stability, competitive salaries, and the chance to make a significant impact on public safety and environmental protection. With an average salary of around $79,340 annually for civil engineers, those with specialized training in geotechnical engineering can earn significantly more — making it an appealing career choice for aspiring engineers.³

Why Aesthetics Matter and How You Can Go Beyond Code Requirements 

Geotechnical engineers face real-world challenges that require creative solutions (that’s where the critical thinking skills come in handy!), especially when dealing with seismic activity and thawing permafrost. During the Denali Fault earthquake in 2002, the frozen ground thawed and became susceptible to liquefaction, reshaping engineers’ approach to seismic projects. Geotechnical teams now often improve soil stability through methods like compaction grouting to prepare for potential earthquakes.⁴

Annalise Mannix, the division chief for planning at Miami-Dade County water and sewer, stresses that her department’s goal is not just to meet building codes but to exceed them. “We know the sea wall ordinance says you have to build the wall to 5 ft,” Mannix explains, “But that doesn’t mean ‘only’ 5 ft.” This mindset highlights a growing push among engineers and municipalities to build beyond minimum requirements, considering rising sea levels, increasing flood risks, and other evolving factors.⁸  

Consulting engineers are encouraged to advise their clients on the best solutions — even if these solutions extend beyond the minimum code requirements. For example, an experienced engineer “has a duty to note” the expected rise in sea levels and to consider wind and flood events based on the best available science. This approach ensures that public assets achieve or exceed their design lifespans, making for a better use of public funds.⁸ 

How You Can Use Natina with Rock Fall Mesh 

When it comes to rockfall mitigation, we don’t just solve problems — we do it in style! Through collaboration with engineers, researchers and industry leaders, we help rockfall solutions blend seamlessly into the landscape, all thanks to our patented patina technology. 

The Natina Finish Goes Beyond Expectations

And by shining a spotlight on the amazing work of geotechnical engineers, we hope to inspire the next generation to dive into this fascinating and rewarding field. Let’s build safer communities — and make them look good while we’re at it! 

Contact us today for expert guidance on planning your next construction project! 

Sources: 

1 Career Explorer — Geotechnical Engineer Career Overview
2 University of Delaware — Geotechnical Engineering Research Overview
3 Forbes — The In-Demand High-Pay Easy-Entry STEM Job You’ve Likely Never Heard Of
4 American Society of Civil Engineers — What Does It Take to Engineer Under Snow and Ice?
5 GeoStabilization International — Rockfall Mitigation: Wire Mesh Solutions
6 Federal Highway Administration — Context-Sensitive Rock Slope Design
7 GeoStabilization International — Rockfall Mitigation: Control Solutions
8 American Society of Civil Engineers — Engineers Help Prepare for Hurricane Season

The post Rockfall Mesh and the Vital Role of Geotechnical Engineering appeared first on Natina.

Steel is the backbone of our society. In fact, it’s the most commonly used material for building the world’s infrastructure.¹ However, the gleaming nature of steel stands out in natural or scenic settings, especially on guardrails or transmission towers that wind through a variety of landscapes. That’s where natural finishes play a crucial role in helping blend construction projects like these into their environments.

An option is weathering steel (A588), which is a metal infused with alloys to form an oxidizing finish.² But it’s not always the right choice for every project (more on that below).

Galvanized steel projects offer the combined benefits of steel’s strength and formability with the corrosion resistance of a zinc-iron coating.³ Natina complements this by providing a natural patina solution, allowing galvanized structures like transmission poles and lattice towers to maintain their durability while seamlessly blending into the environment. This partnership reduces visual impact and offers a low-maintenance, long-lasting finish.

Ultimately, when deciding between Natina-treated hot-dipped galvanized steel and weathering steel, it comes down to project-specific requirements. Here are some key considerations.

Weathering Steel vs. Hot-Dipped Galvanized Steel

Weathering steel’s susceptibility to corrosion increases in moist environments, particularly in coastal and tropical areas. To counteract the potential loss of mass and strength, builders opt for thicker steel sections from the onset of the project. However, the corrosive effects of weather, salty, air and humidity can accelerate the degradation and failure of weathering steel.⁴

Here’s why, according to the American Conservation Experience: “The protective rust needs constant wetting and drying cycles to maintain itself, but if the weathering steel is wetted but not dried, the protective layer erodes and corrosion proceeds. Failure usually results from extensive corrosion due to an extended time of wetness or poor design.”¹

In contrast, hot-dipped galvanized steel is produced by immersing bare steel in molten zinc, creating a robust barrier against corrosion. This makes it stand out as a preferred choice in construction. Hot-dipped galvanized steel not only shares the strength attributes of weathering steel but also boasts several additional advantages (like being able to be treated with Natina’s patina solution).⁴

With built-in barrier and cathodic protection, this material demonstrates remarkable corrosion resistance, resulting in less long-term maintenance compared to weathering steel. Hot-dip galvanized steel also maintains its structural integrity even when exposed to harsh UV rays, snow, water, and soil. It’s worth noting that it’s also 100 percent recyclable, further emphasizing its environmental sustainability.⁴

So, why do people still use weathering steel?

Key Differences Between Weathering Steel and Natina-Treated Steel

Weathering steel, commonly known as Cor-ten and by the trademark COR-TEN, has been an option for years due to its uniform and rustic appearance.⁵

However, the initial perception of weathering steel as a low-maintenance material was not entirely accurate. It was marketed as a “set it and forget it” option, but real-world experience tells a different story.⁵

Routine maintenance is often required in areas where dense vegetation can grow around structures, trapping moisture and preventing the proper formation of the weathering patina.⁵

This raises a key point: While weathering steel can be an option for your project, it’s important to consider maintenance and the local environment when using it in outdoor construction.

Even utility companies that have successfully used weathering steel, such as American Electric Power (AEP), have encountered significant challenges. For example, AEP observed severe corrosion on a 20-year-old pole line, highlighting the susceptibility of weathering steel to environmental conditions.⁵

This underscores a crucial point: While weathering steel may be suitable for certain projects, its long-term performance depends heavily on maintenance and the specific environmental conditions in which it’s used. Understanding these factors is key to ensuring the durability and success of outdoor construction projects.

Aesthetic appeal of Natina vs Weathering steel

The choice between Natina-treated hot-dip galvanized steel and weathering steel is crucial to the long-term success of your project.

Natina is an eco-friendly color solution that can transform your galvanized materials, such as transmission projects like lattice towers, to seamlessly blend in with their natural surroundings. The rustic, earthy brown finish achieved with Natina is a result of a natural reaction between our solution and the elements found in nature.

4 Key Benefits of Natina:

1. Aesthetics: Natina provides a natural rustic brown color that significantly reduces the visual impact, allowing structures to blend harmoniously into their environment.

2. Durability: Natina maintains the corrosion resistance of galvanized metal, ensuring longevity and structural integrity.

3. All-climate friendly: Natina is suitable for use nationwide, including in coastal regions and dense vegetation.

4. Maintenance: With low-cost and easy-to-maintain properties, Natina offers a practical solution that minimizes upkeep efforts.

Natina shines in scenarios where seamless integration with the environment is essential. It’s perfect for projects that require galvanized steel’s durability and corrosion resistance while avoiding the stark contrast that untreated galvanized steel often presents in nature.

So, when you want your project to blend into its surroundings, choose Natina — a product that stands out from the competition.

The Unique Appearance of Natina: A Natural-Looking Finish

• Strength with a natural finish: Natina is formulated to harness the strength of galvanized materials with a natural, weathered appearance.
• Reduced visual impact: Natina significantly diminishes visual impact by blending structures seamlessly into their surroundings.
• Nationwide availability: Natina is perfectly suited for any setting, including urban landscapes and sensitive coastal regions.
• Environmentally safe: Natina stands as an eco-friendly solution that is safe around waterways, plants, and animals.
• Enhancing public opinion: Natina addresses community concerns by improving the visual aesthetics of steel structures.
• Low maintenance: Natina is formulated for durability and is easy to maintain.

Among the clients that trust Natina are the Nevada Department of Transportation, The Phoenix Zoo, Southern California Edison, and the U.S. National Parks. Natina is also used nationwide by utility companies.

Sound like what you want? Contact us today for expert guidance on planning your next energy project!

Sources:

¹ American Conservation Experience

² U.S. Bridge — What is Weathering Steel?

³ National Material

⁴ U.S. Bridge — Hot-Dip Galvanized Steel vs. Weathering Steel

⁵ T&D World

The post Weathering Steel vs. Natina-Treated Galvanized Steel: A Comprehensive Comparison for Construction Projects appeared first on Natina.

Tropical bear habitat | Photo by Natina

In a “wild” collaboration with a zoo, Natina took on an exciting project to revamp a bear habitat. The goal was to transform the glaring metal enclosure into a “bearly” noticeable one, while also ensuring the safety and well-being of the tropical bears that call it home.  

Making a Hard Job Easy 

The zoo faced the difficult challenge of finding a coloring solution that would improve the aesthetics of the habitat. The solution had to meet various requirements, including being USDA-compliant, natural, nontoxic, rust-free and low maintenance.  

Essentially, the challenge was twofold — it had to avoid any adverse effects on the tropical bears and plants within the habitat, while simultaneously reducing the visual impact for human observers.  

That’s where Natina came in. We collaborated with the zoologists, designers and experts to not only meet their criteria but also to surpass their expectations. 

Andean bear at the zoo | Photo by Natina

Natina: The Natural Choice 

Natina emerged as the ideal choice for this project due to its eco-friendly nature. Instead of methods like weathering steel and paint — that each come with their own challenges such as rust and flaking — Natina provided a low-maintenance, natural solution that enhanced the aesthetics of the metal enclosure. 

The ‘Bear’ Necessities  

— Safe around animals  

— Safe around plants 

— Environmentally friendly   

Thankfully, Natina is an animal-friendly choice, meeting the requirements for this project.  

Bringing the Vision to Life 

Our Natina team worked diligently at our facility, applying our beautiful signature rustic brown finish to everything from galvanized chain-link fences and metal wire to hardware and components. These were transported to the zoo, where the project’s designer and a skilled installer joined forces to construct the habitat, while carefully following environmental and zoo guidelines. 

The Natina finish on the enclosure helps it blend into the bears’ habitat | Photo by Natina

Revealing the Results

With the successful application of Natina’s color solution, the metal enclosure surrounding the tropical bears has been transformed into a visually appealing sight that seamlessly blends in with the habitat.  

Not only does our treatment have no negative impact on the well-being of the bears, but it also significantly reduces the visual impact of the necessary constructed areas around the animal habitat. Now, zoo goers can fully immerse themselves in the exhibit without any distractions from glaring metal.  

This project is an example of our commitment to providing a color solution that is both aesthetically pleasing and environmentally friendly. It’s why we believe we’re Changing the Way You See Construction®. 

Due to the success of the project, you’ll likely spot more of Natina at zoos and in environmentally sensitive areas in the near future! 

Enhance and Protect Your Project 

To explore how Natina can enhance your project’s aesthetics while protecting the environment, reach out to us today. 

Also, make sure to check out another project we did at the Phoenix Zoo in the warty pig habitat. 

The post Natina Transforms Zoo Habitat from Glaring to ‘Bearly’ Noticeable appeared first on Natina.

Photo by SUPC

Natina is excited to announce its partnership with the Steel Utility Pole Coalition (SUPC)! This alliance will strengthen our industry presence and further expand our ability to work with amazing customers that want to make their steel structures more aesthetically pleasing.

About the SUPC

The SUPC brings together industry groups, manufacturers and end-users in a united effort to advocate for the use of steel poles.

With a focus on engineered strength and consistency, the SUPC champions the advantages that steel poles offer over traditional wood alternatives.

Advantages of Steel Utility Poles

When considering utility poles, steel stands out for an abundance of reasons.*

• Durability: Steel’s inherent material properties ensure exceptional durability, offering long-lasting performance in various conditions.
• Engineered Consistency: Steel’s uniformity in strength, derived from precise engineering, guarantees reliability across all applications.
• Extended Service Life: Steel boasts a significantly longer lifespan compared to wood, often doubling it in many environments.
• Low Maintenance: Steel poles require minimal maintenance, eliminating the days of battling rot, insect damage or woodpecker interference.
• Fire Performance: Steel demonstrates superior resistance to wildfires, making it a preferred choice in fire-prone areas.
• Consistent Strength Over Time: As steel poles age, they maintain their original strength properties, shielded by the galvanized coating.
• Lower Life Cycle Costs: With reduced maintenance requirements — no aging-related shrinking or chemical treatments — steel offers cost savings over its lifespan.
• Specialized Applications: Steel excels in unique scenarios, such as deterring woodpeckers, and its lighter weight makes it ideal for hard-to-reach install locations.
• Customizable Strength: Unlike wood poles, where sizes are constrained by the existing forest resources that take decades to grow, steel offers unparalleled flexibility. Steel can be produced in any size or strength requirement, allowing for tailored solutions to meet specific project needs. This versatility eliminates the limitations imposed by natural growth cycles, providing a dynamic and efficient approach to meeting diverse construction demands.

*Source: SUPC

Photo by Natina

Benefits of the Natina-SUPC Partnership

This collaboration isn’t just a meeting of minds, it’s beneficial for both partners and their customers, who will benefit from the wealth of information provided by the SUPC.

• Knowledge Sharing: Over the past 15 years, the SUPC has supported colleges, training centers, electric utilities and various electric utility associations by offering free training to eligible organizations.The training is structured in two distinct formats: one tailored for students and instructors, and another crafted for electric utilities, apprentice programs and utility associations.
  • Student Training: The SUPC sponsors on-site, hands-on training workshops for qualified schools. For example, a complete online training series titled “Essential Lineman Training: Working with Steel Utility Poles” offers 10 years’ worth of knowledge and experience.
  • Journeymen and Apprentice Training: The SUPC assists electric utilities by providing educational information on the safe use of steel utility poles. Their training module, “Energized Distribution Systems — Safe Work Practices,” is designed for linemen who have worked on energized distribution systems and want to learn more about working with steel poles.

• Collaborative Research: The collaboration between Natina and SUPC also creates an opportunity for joint research initiatives. Together, we can combine our steel expertise to develop informative white papers filled with research and statistics that can help customers with their projects. By emphasizing the advantages of galvanized steel over wood or weathered steel, with the added benefit of Natina’s color technology, audiences can discover effective solutions for issues like mitigating the visual impact that bare steel may have on natural landscapes.

Photo by SUPC

Natina’s Impact on Steel Structures

Natina offers a unique color solution for enhancing the appearance of steel structures, such as monopoles and lattice towers.

Photo by Natina

Here are some reasons to consider Natina for steel projects.

• Visual Impact Mitigation
  Natina’s natural-looking patina seamlessly blends in with the surroundings, making steel structures nearly undetectable from a distance.
• Reduced Maintenance
  Natina’s technology reduces the need for frequent maintenance visits.
• Ready Color
  Natina’s beautiful rustic brown finish is developed and ready to install on the jobsite.
• Eco-Friendly Practices
  Natina’s non-toxic, natural solution is an environmentally conscious alternative to acid stain, paint or powder coating.

Interested in learning more about Natina?

Meet Natina at Upcoming Conferences:

• IEEE/TandD Conference
  • Dates: May 7–9
  • Location: Anaheim, CA
• USMA Conference
  • Dates:
    May 19 (Kris, our resident golfer, will attend the Charity Golf Event for ALS)
    May 21 (Ryan and Kris will attend the networking event)
  • Location: Scottsdale, AZ

We look forward to engaging with industry professionals and stakeholders at these conferences, while sharing insights and building lasting connections! We hope to see you there.

The post Natina Partners with the Steel Utility Pole Coalition (SUPC) appeared first on Natina.