Clatsop County, Oregon
Client: CREST
Design: David Evans and Associates, Inc.
Construction Management: Aadland Evans Constructors, Inc.
Aadland Evans and DEA partnered to deliver the Ft. Clatsop Estuary Restoration project for The Columbia River Estuary Study Taskforce and the National Park Service. Work was planned and completed to a very tight budget and as scheduled.
Elements of the project included developing and implementing a restoration plan that would return estuarine hydrology to 50 acres of historic wetland near the mouth of the Columbia River. The team replaced a 60-inch culvert and tide gate with a 46-foot single-span bridge.
Services provided by the team include project management, land survey, hydraulic and hydrologic modeling and analysis, geotechnical exploration, alternatives analysis, scour analysis, bridge design, construction documentation, constructability review, bidding assistance, contractor selection, construction contract negotiation, and construction administration.