More than 50 Years of Experience
Consulting, design build, onsite installation of Cathodic Protection Systems, concrete repair, retaining walls, manufacturing, installing anode sleds and other Impressed Current & Passive Cathodic Protection components.
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Cathodic Protection

GWC specializes in many kinds of Cathodic Protection Systems including Passive Anode Sleds, Pile Jackets, Passive weld-on Anodes and other Distributive Anodes Systems.

Railroad Tunnels

Full-service railroad construction, maintenance-of-way. Our highly-trained employees and specialized equipment can handle any job – big or small, including bridges, tunnels, culverts, and slides.

Containment & Enclosures

We have designed enclosures and containment for many bridges and other structures. Most are designed for 90 mph wind and other heating, ventilation & scaffolding needs

Pile Driving

This is the heart of most construction projects. At GWC, safe, efficient, and cost-effect pile driving is one of our core principles.

Retaining Walls

Retaining walls are used for supporting soil laterally so that it can be retained at different levels on the two sides.

Marine & Forestry

We have performed several projects with the forestry service and other groups involved in the providing and repairing irrigation , diversionary, dams & Locks marine & forestry industry.

We are focused on providing our clients with the highest level of quality

Since 1974 we have been involved in many phases of corrosion control and steel and concrete repair. Over the years we have developed a system of dehumidifying and controlling the temperature in enclosed structures. This system, coupled with our specially designed and fabricated containment system, ensures the quality of all phases of our cathodic protection systems.

We have completed numerous projects with both impressed current and galvanic cathodic protection relating to concrete and steel structures and reservoirs.

We have also repaired several railroad bridges and tunnels and installed suspension systems to support fiber optic cable along 57 railroad bridges and bury it in 10 tunnels for the Port of Tillamook Bay.

Our projects have been featured in several professional and popular media sources including Pacific Builder & Engineer magazine, The Oregonian newspaper, and the popular History Channel program Modern Marvels.

Some of our more recent projects have included a moving bridge enclosure, pile driving underwater & surface installed Cathodic Protection, consulting on many projects including a yacht dock in Marina del Rey. Check them out under our Recent Projects.

Innovation
Efficiency
Integrity
Planning

Past Projects