2026 Geotechnical and Materials Testing Services for Capital Project Services

Released: September 28, 2026 12:00 AM PDT Questions due (Question Submission Deadline): October 12, 2026 5:00 PM PDT Responses due (Submittals Due): October 14, 2026 2:00 PM PDT

The work shall consist of geotechnical and material sampling, testing, inspection, and laboratory analysis as well as related report preparation and calculations. The County will issue multiple contracts based on this solicitation.

The work shall be accomplished as directed by the Principal Engineer or representative and in conformance with the applicable provisions of the construction contract under which the work is done and the current standards of the following publications: Oregon Department of Transportation (ODOT) Construction Manual with memorandums and notices, ODOT Manual of Field Test Procedures, ODOT Laboratory Manual of Test Procedures, ODOT Standard Specification for Highway Construction, American Public Works Association (APWA) Standard Specifications, American Association of State Highway and Transportation Officials (AASHTO) Standards and Test Procedures, Western Alliance for Quality Transportation Construction (WAQTC) Test Procedures, American Society for Testing and Materials (ASTM) Standards and Test Procedures, and other standards as applicable.

Washington County is a suburban county located on the western edge of Portland, Oregon. Its boundaries extend from the City of Portland to the coast range. The current population is approximately 600,000 people.

There is a mix of urban, suburban and rural areas. The eastern half of the County is composed of service industries, light manufacturing, residential and commercial activity. It is relatively densely populated.

The western half is primarily farms and private forest lands across rural settings, together with several smaller incorporated and unincorporated communities.

The County seat of government is located in Hillsboro, Oregon. The County has experienced substantial growth over the last fifty years principally in the electronics and high-tech industries. Twenty percent of the entire state's population growth in the last five years has occurred in Washington County.

The County is a home rule county, governed by five elected Commissioners who appoint a County Administrator as the chief executive of the County. There are currently approximately 1950 employees in all areas of County government who are engaged in providing the multitude of services required by its member cities, businesses and general population.

NIGP codes: 90742 Geotechnical - Soils; 92546 Geotechnical Engineering; 99234 Concrete Testing Services; 99236 Core Sample (Not Concrete) Testing Services; 99255 Miscellaneous Testing and Calibration Services