Site work for a civil project in Portland, Oregon. Completed plans call for site work for a bridge / tunnel.

Scope of Work: Construction or replacement of approximately 600 lineal feet of 12 to 18-inch diameter storm drain, including associated manholes, storm drainage structures, and riprap outfall protection requiring excavation, shoring and dewatering in a residential setting with utility and local access constraints; Grading associated with construction of 0.2 acre wetland area with approximately 300 lineal feet of wetland swale, and approximately 200 lineal feet of earthen berm on an open space tract with utility constraints; Clearing, grubbing, and weed control of invasive plant species; Construction of Brush Piles to provide improved habitat in the wetland area; Temporary water management to allow construction below the ordinary high water elevation; Aldercrest Culvert Replacements: Construction to remove culverts under three driveways and replace the stream crossing with a 20-foot span, three-sided concrete box culvert set on pre-cast footings; Reconstruct a section of sanitary sewer under one driveway; Grading associated with construction of approximately 750 lineal feet of stream channel; Adjust or reconstruct utility service to private properties in conflict with the stream and culvert construction. Clearing, grubbing, and weed control of invasive plant species including an existing stormwater quality facility; Construction of Large Wood Structures to provide improved habitat in Upper Kellogg Creek. Temporary water management to allow construction below the ordinary high water elevation of Upper Kellogg Creek. Contact Information Procurement Process and Technical Questions: Ryan Rice, rrice@clackamas.us