Weathering Steel

What is Weathering Steel

Weathering steel is a high strength, low alloy steel that was originally developed by United States Steel in the 1930s to resist corrosion and abrasion in their ore wagons. It was given the trade name Cor-ten, and was first used in construction in 1964. Since then the use of weathering steel has spread worldwide and is a popular choice for the use in Pioneer steel truss bridges.

Palm Coast

In suitable environments, weathering steel forms a protective rust “patina” that inhibits further corrosion. The corrosion rate is so low that bridges fabricated from unpainted weathering steel can achieve a 100 year design life with only nominal maintenance.

weathering steel

Benefits of Weathering Steel

• Lower up-front costs:  A weathering steel bridge generally costs about 10% to 15% less than a painted bridge.

• Low maintenance:  Weathering steel is ideal for bridges and other structures where access is difficult or dangerous, and where future disruption needs to be minimized. Inspection and cleaning should be the only maintenance required to ensure the structure continues to perform well.

• Project life cost benefits:  Nominal maintenance needs of weathering steel structures significantly reduce the costs of maintenance operations and the potential indirect costs of traffic delays.

• Construction Speed:  With the elimination of painting in our shop and touch up painting in the field – construction is streamlined.

• Curbside appeal:  The attractive appearance of mature weathering steel often blends in with the environment. Its appearance changes and improves with age.

• Environmental benefits:  Use of weathering steel eliminates the need for VOC laden paints.

 

Trailblazer

Limitations on use

Weathering Steel Bridges are suitable for use in most locations. However, there are certain environments that can lead to durability problems. Weathering steel should not be used in salt-water environments or over brackish water.  Also, de-icing salts should not be used on weathering steel bridges and it not recommended for use in continuous wet/damp conditions.

Guardian Bridge on Rockdale River Trail

The Rockdale River Trail is part of an extensive network of pedestrian trails in the Atlanta area.

When a portion of the trail needed to cross over State Route 212 (Brown’s Mill Road) they called on Pioneer Bridges

to furnish a prefabricated steel truss pedestrian overpass structure.

Guardian

Guardian style bridge with weathering steel finish, safety mesh, and canopy.

  The Guardian Style bridge includes a safety mesh fencing system and was fabricated from weathering steel to provide a “rustic look”.

This type of finish also provides for a low level of maintenance.

The bridge was also designed with signage to promote the trail and make the structure a “signature” bridge and a easily recognizable landmark for the area.

RRTF-BridgeViewSouth

Rockdale River Trail Bridge is an area landmark.

The overpass bridge is located just west of the Monastery of the Holy Spirit near Conyers, Georgia.

It provides safe passage from the trailhead being constructed near the new visitor’s center.

Many Atlantans have visited the Monastery over the years, touring their gardens and bringing home edibles and bonsai trees purchased from the monks.

RRTF-BridgeViewNorth

Pioneer Bridges’ Guardian Bridge provides safe passage for Rockdale River Trail travelers.

In 2010, the Monastery opened a new $6+million Heritage Center where the public can view the history of this Monastery,

as well as monasticism through the ages, shop in the store, and even grab a bite to eat in the café.

The trailhead at the Monastery should be a popular spot for accessing the trail for years to come.

Rockdale River Trail bio