Yellowstone Pipe Line Company
Clark Fork Crossing
- ERG is currently permitting a pipeline crossing under the Clark Fork River to replace an old crossing which is no longer buried below scour depth due to channel migration. Permits required for a trench and fill project require the following six permits:– 404 permit (Federal)
— 310 permit (County)
— Land Use Easement (State)
— Construction stormwater permit (State)
— Floodplain Permit (County)
— Short-term Water Quality Standard for Turbidity
— (318 permit, State)
— Lakeshore Protection Act (County)
- This project also included a Biological Assessment for bull trout including a toxicity analysis due to potential disturbance of soils containing heavy metals.
- Soils samples were collected for metals analysis.