900199 Ph 2 Plans 3.pdf

This is a Phase 2 project plan document for the Amazon Prairie Mitigation Bank, a wetland habitat restoration project in Oregon. The project encompasses comprehensive site development work including general excavation and grading with 3D machine grade control, shallow pool construction, embankment berms and spillways, and permanent stabilization measures. Additional construction elements include flashboard risers, headwall structures, fish screen installations, and storm pipe systems. The work requires specialized installation of coir and wood logs for habitat enhancement, with careful protection protocols for sensitive areas including archaeological sites. The project addresses the second phase of a larger mitigation banking initiative designed to restore and enhance wetland ecosystems.

The document serves as the technical plans and specifications foundation for the invitation to bid (ITB 10 2026) and provides detailed design guidance for contractors responding to this state of Oregon contract opportunity. The work demands expertise in wetland construction, environmental sensitivity, and coordination with regulatory requirements typical of mitigation banking projects. Bidders should review these plans in conjunction with the scope of work details and any addendum issued by the contracting agency, with particular attention to the protection requirements for sensitive ecological and archaeological areas within the project footprint.