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  • Welcome to the Geo-Environmental Section

    sunset_image.jpgODOT’s Geo-Environmental Section supports environmental regulatory compliance and best engineering practices for state transportation projects and programs. The section is responsible for development of statewide standards of practice, guidance and manuals, training, and asset management for geology, hydrology, and environmental disciplines within ODOT.

    We serve as stewards of the public interest for a variety of natural and cultural resources and for safe transportation infrastructure. We bridge the natural resources and civil engineering disciplines. We build dynamic partnerships for making vital decisions to serve the public and protect our resources.

Section Highlights


Stormwater Treatment Technology Center
State and Federal agencies, together with environmental organizations, have expressed increasing concern regarding the effectiveness of stormwater treatment devices and facilities in achieving water quality standards required by permits.  Transportation agencies are also facing continued uncertainty regarding the costs associated with maintaining these facilities.  As a result, transportation organizations are looking for tools and unbiased information that would support highest-return choices in the stormwater quality technology they invest in.  The purpose of the Stormwater Treatment Technology Center (STTC) is to provide designers and users, of stormwater treatment technologies with a tool to provide non-biased, credible assessments of the effectiveness and maintainability of stormwater treatment technology being considered for installation at their stormwater treatment facilities.
The concept for the STTC was developed by a group of stormwater professionals that ODOT convened to discuss the challenges and ways to improve the management of large stormwater programs.  The group included representatives from the Oregon Department of Transportation (ODOT), other state and local agencies, and the Washington Department of Ecology (WDOE).  Discussions over a two-year period revealed that WDOE and several other agencies had facilities or protocols established to evaluate pollution removal effectiveness of stormwater treatment devices; however, none of the existing facilities or protocols had the capability to demonstrate a long-term stormwater,  the maintenance required for the technology, the costs of maintenance, and at what point the technology would it fail and require replacement.








GES Standard Statements of Work
Cultural Resources: Archaeology​
Cultural Resources: Historic
​Environmental Engineering: Noise
Environmental Engineering: Noise Screening Methodology