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State Route 89 Water Quality Improvement Project - "Y" to Cascade Road
Project Number
01.01.01.0006
Action Priority
Reduce Stormwater Pollution From: Roads and Highways, Forest Roads, Public and Private Parcels
Implementers
California Department of Transportation
Primary Contact
Joan Davis (D3.FTIP@dot.ca.gov)
Stage
Completed
Duration
2006 - 2016
Stormwater Management Program
Reduce Stormwater Pollution From: Roads and Highways, Forest Roads, Public and Private Parcels
In and near South Lake Tahoe, from Route 50 to Cascade Road. Reconstruct drainage system and construct stormwater improvements throughout project area. Incorporate erosion control measures on unvegetated slopes within the State right-of-way. Pave existing unsurfaced pullouts and driveway connections. Length = 5.2 miles. Post Mile 8.6 to PM 13.8. Caltrans EA 1A842. This project also removed an undersized, impassable culvert on Tallac Creek at Hwy 89 and replaced it with an open bottom culvert with natural substrate. The project removed the last remaining man-made barrier to fish on Tallac Creek, as well as provides improved stream habitat.
Key Accomplishments
- Linear Feet of Stream Channel Restored or Enhanced: 100 lf
- Miles of Roads Decommissioned or Retrofitted: 5 miles
Threshold Categories
- Fisheries
- Water Quality
Location
Expenditures
Expenditures by Funding Source to Date: $23,400,000
(Estimated Cost: $24,420,000)
(Estimated Cost: $24,420,000)
SHOPP Funds (Caltrans): $23,400,000
Photos
After
Tallac Creek with fully passable open bottomed culvert
Tallac Creek with fully passable open bottomed culvert
Project Fact Sheet Data as of 04/26/2024