Design Services for Molalla River Bridge Rehabilitation Project

To provide project management, survey, environmental services, utility coordination, geotechnical, traffic engineering, public outreach assistance, and the development of both preliminary design and final PS&E (Plans, Specifications and Estimates) design, right of way (as a contingency), geological services. Rehabilitation of the existing bridge shall include: Phase 1 seismic retrofit (superstructure only) Paint steel girders of spans 1, 2, 4, 5, 6 to include spot removal of rust and flaking; Deck joint repair (all 7 bents); Deck repair at a minimum - Class II deck prep in spots, Class I for remainder and a Polymer Concrete overlay ¾” over entire bridge; Repair delamination’s and concrete spalls of columns, abutments and pier caps; Perform column jacketing for scour protection at bents 3, 4 and 5 (6 columns total); Rip rap scour protection at Bents 2, 3, 4 and 5; Epoxy inject cracks in Bent 7 wall; Remove six H-pile in vicinity of Bents 3 and 4. (Work bridges are anticipated for the In-water work, H-pile removal, column jacketing and rip rap placement).

Architectural, New Construction.