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Chief Mountain Int over Lee Creek

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

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

Chief Mountain Int over Lee Creek in Glacier County, Montana, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 6 (satisfactory condition) on the 0-9 scale.
It was built in 1935 and reconstructed in 1979, making it 90 years old at the 2025 inventory.
It carries about 246 vehicles a day (traffic count year 2017).
It is one of 40 of the 71 inventoried bridges in Glacier County rated fair (56.3%); 3 (4.2%) 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	Continuous steel girder and floorbeam
Length	about 209 ft
Location	12.7 miles north of Saint
NBI structure number	1430032P0000000
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
Irr - US 2 over RR	1997	3,716	Good
Irr - US 2 over Cut Bank Creek	2007	3,523	Fair
Irr - US 2 over RR	1997	2,515	Good
Irr - US 89 over St Marys River	1956	2,355	Fair
Going-to-the-sun R over St. Mary River	1934	2,300	Fair
Going-to-the-sun R over Divide Creek	1934	2,300	Fair