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Heron Rd over Cabinet Gorge Res 049

Sanders County, Montana · rated Good in the 2025 National Bridge Inventory

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

Heron Rd over Cabinet Gorge Res 049 in Sanders County, Montana, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
It was built in 2017, making it 8 years old at the 2025 inventory.
It carries about 539 vehicles a day (traffic count year 2023).
Its listed owner is the county highway agency.
It is one of 45 of the 120 inventoried bridges in Sanders County rated good (37.5%); 10 (8.3%) are rated poor.
A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.

Component ratings


Structure	Continuous steel stringer or multi-beam girder
Length	about 767 ft
Location	1M W Heron
NBI structure number	000000000004323
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
S 200 over Clark Fork River	1997	3,009	Fair
S 200 over Clark Fork River	1996	3,009	Fair
S 200 over RR	2000	2,686	Good
S 200 over Clark Fork River	1960	2,482	Poor
Irr - S 28 over Hot Springs Creek	1959	2,181	Fair
S 200 over Wildlife Crossing	2019	2,177	Good