Environmental Commitment

At Hamilton Construction, we take pride in our approach to limit the environmental impact of our actions. Whether it is using solar power and more earth-friendly fuels or improving the animal habitats around our projects, we strive to make the world a better place. Click here to watch the Emerald Award for Environmental Values video presentation honoring Hamilton Construction.

Solar Power

Solar energy is Oregon's most abundant source of renewable energy. Hamilton uses two solar panels on the roof of its newest building for fabrication (pictured above) to help offset the use of electricity, natural gas and propane. The two systems consist of a total of 344 Sharp polycrystalline solar panels mounted on a Uni-Rac flush rack system. The system has a nameplate size of 75 kilowatts, making it one of the largest solar arrays in the Springfield area, and is expected to produce about 77,000 kilowatt hours of electricity throughout the year. Both systems, as net metering systems, feed their energy back into the local utility grid and work to reduce the yearly energy usage of Hamilton Construction by up to 23%. This solar array is estimated to offset an amount of carbon emissions equal to 2,000 tons of CO2, 6,000 trees planted, or 209,000 gallons of gasoline.


Hamilton uses locally-distributed biodiesel on project sites. This reflects our commitment to environmental stewardship since biodiesel is more difficult to obtain and it results in an increase in costs when compared to more conventional diesel fuel. Biodiesel provides the primary fuel for company equipment such as cranes, forklifts, track hoes, diesel welders, and diesel air compressors. Additionally, Hamilton now uses vegetable oil in their pile driving hammer. The use of biodiesel and vegetable oil provide environmental benefits that exceed most, if not all, contractual requirements on our projects.

Bubble Curtains

Pile Driving in water is believed to be harmful to fish due to low frequency sound waves produced in the driving process. For many years Hamilton has used various forms of "Bubble Curtains" when pile driving to minimize this affect. Hamilton's job site engineers and fabrication team designed and produced the "Hydro Acoustic Dampening System / Pile Driving Template" (Bubble Curtain) for use at the Willamette River Bridge Project as shown in the rotating photos to the right. It provides a safe working platform while significantly reducing low frequency sound emission.

"Hamilton and their team are great contractors. When Hamilton says they will take measures to reduce impacts, they are implemented as discussed. The Hamilton Team has earned ODFW's trust."

- Jim Muck
Oregon Department of Fish & Wildlife

Agency Coordination

We are active when involving regulatory agencies throughout construction and have successfully worked with them to modify permits to reduce environmental impacts in regulated work areas. As an example of this approach, Hamilton received formal recognition from the Oregon Department of Fish and Wildlife for building and installing a bat habitat and removing a significant amount of grouted riprap associated with the old bridge. Removal of the riprap provided for habitat improvements that are of key concern to regulatory agencies by allowing more natural transport of native sized material and restoring critical habitat for Bull trout and Chinook salmon.