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Philbrook Rd over Judith River 013

Judith Basin County, Montana · rated Fair in the 2025 National Bridge Inventory

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

Philbrook Rd over Judith River 013 in Judith Basin County, Montana, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the substructure, rated 6 (satisfactory condition) on the 0-9 scale.
It was built in 1983, making it 42 years old at the 2025 inventory.
It carries about 100 vehicles a day (traffic count year 2025).
Its listed owner is the county highway agency.
It is one of 12 of the 45 inventoried bridges in Judith Basin County rated fair (26.7%); 7 (15.6%) 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


Structure	Prestressed concrete tee beam
Length	about 84 ft
Location	4M W Hobson
NBI structure number	L23007000+03001
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
US 87 over Dawkins Branch	2021	3,335	Good
US 87 over Ross Fork Creek	1971	3,335	Good
US 87 over Otter Creek	1961	2,874	Good
US 87 over Otter Creek	1961	2,874	Good
US 87 over Otter Creek	1961	2,874	Good
US 87 over Stockpass	1961	2,753	Good