Natural Resources
Aquatic Organism Passage
Aquatic Organism Passage (AOP) Culvert
Nez-Perce Clearwater Forests, ID
Project Features
- AOP crossing utilizing a 46’-9” x 16’-0” plate arch culvert
- Bedrock excavation for concrete footing foundations
- 20+ feet of road fill
- Intersects Red River 50’ downstream of crossing
- Intersection with State Highway 14 75’ from project site
- 2,800 cubic yards of structure excavation
- Conformance to USFS, ITD, and Idaho County
- Detour route and bridge
- Design cost $39,650
Project Activities
- Site Survey
- Geomorphological Assessment
- Road Design
- Structure Design
- Stream Simulation Design
- Project Specifications
Project Photos
