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Lower Deep CR Road over Deep Creek

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

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

Lower Deep CR Road over Deep Creek in Broadwater 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 1978, making it 47 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 23 of the 37 inventoried bridges in Broadwater County rated fair (62.2%); 4 (10.8%) 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 channel beam
Length	about 25 ft
Location	2M SE Townsend
NBI structure number	000000000007076
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
US287 over Beaver Creek	1992	6,930	Fair
US 12 over Missouri River	1935	6,843	Fair
US 287 over Mud Spring Gulch	2013	6,444	Good
US 287 over Int Three Forks I 90	2012	6,444	Fair
US 287 over Deep Creek	2012	5,485	Fair
US 287 over Six Mile Creek	2020	5,250	Good