Supplemental Investigations , US 20, Eddyville, Oregon
Cornforth Consultants and its division, Landslide Technology, frequently tackle difficult transportation assignments. We are pleased to have an extensive history of working for large federal and state agencies as well as city and county transportation departments.
Our project experience includes EIS-level geotechnical and geologic assessment, permitting, geotechnical baseline studies, complex road and bridge design, construction control, and implementing statewide geotechnical asset management programs. In that capacity, we have been selected as geotechnical consultants for all seven northwestern state DOT's and Western Federal Lands of the FHWA.
Our Services section summarizes the types of services we offer for transportation infrastructure. Some of our representative projects and repeat clients are listed below:
| Representative Projects | ||
| US 20 Pioneer Mountain to Eddyville | Oregon Transportation Investment Act (OTIA) Bridges | |
| Interstate 84 Sandy River Bridges | Newberg Dundee Bypass | |
| Libby Rockfall Mitigation | Montana RHRS Statewide Implementation | |
| Ketchikan Third Avenue Extension | Going-to-the-Sun Road Rehabilitation | |
| Geotechnical Manuals | Warner Highway Curve Correction | |
| Repeat Clients | ||
| WFLHD-FHWA | Oregon Department of Transportation | |
| Washington Department of Transportation | Idaho Department of Transportation | |
| Montana Department of Transportation | Clackamas County, Oregon | |
| Multnomah County, Oregon | Alaska Department of Transportation | |
| Clark County, Washington | Wyoming Department of Transportation | |
| New York Department of Transportation | British Columbia Ministry of Transportation & Highways | |
| Washington County, Oregon | Utah Department of Transportation | |