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Irr Bia Rte 76 over North Fork of Pit River

Modoc County, California · rated Fair in the 2025 National Bridge Inventory

United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled August 20, 2026

Irr Bia Rte 76 over North Fork of Pit River in Modoc County, California, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 5 (fair condition) on the 0-9 scale.
It was built in 2003, making it 22 years old at the 2025 inventory.
It carries about 100 vehicles a day (traffic count year 2023).
It is one of 43 of the 87 inventoried bridges in Modoc County rated fair (49.4%); 1 (1.1%) are rated poor.
A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.

Component ratings

Source: FHWA National Bridge Inventory, 2025 data as reported by the California department of transportation.

Bridge	Built	Vehicles/day	Condition
U.S. Highway 395 over North Fork Pit River	1982	4,000	Fair
U.S. Highway 395 over Parker Creek	1954	4,000	Fair
State Route 299 over Rattlesnake Creek	1980	3,000	Good
State Route 299 over Rock Creek	1937	2,800	Good
U.S. Highway 395 over South Fork Pit River	1971	2,400	Fair
U.S. Highway 395 over South Fork Pit River	1971	2,400	Good