Plymouth Island Bank Stabilization

Wave erosion of an island in the Columbia River threatened archeological sites. Conway stabilized banks and completed the project on time.

Viento to Mitchell Point

This project involved three distinct elements: 1) conversion of two miles of the historic Columbia River highway into a paved bicycle and pedestrian path; 2) replacement of an existing campground; 3) extensive renovation of an existing maintenance building and yard. Some of the many, and widely varying, facets included: 1) clearing; 2) rock excavation; 3) […]

0.8 Miles West of Chapman Road Erosion Protection

In yet another encounter with the Cowlitz River, Conway installed turbidity curtains and constructed a revetment, including gores and plantings, along a bend in the river where erosion was threatening a highway. Conway completed this project well ahead of schedule and on budget, while complying with the many environmental regulations of the local, state, and […]