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County Road 500 over S Fork Lisk Creek 070

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

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

County Road 500 over S Fork Lisk Creek 070 in Dawson County, Montana, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the superstructure, rated 6 (satisfactory condition) on the 0-9 scale.
It was built in 1984, making it 41 years old at the 2025 inventory.
It carries about 63 vehicles a day (traffic count year 2023).
Its listed owner is the county highway agency.
It is one of 92 of the 109 inventoried bridges in Dawson County rated fair (84.4%); 9 (8.3%) 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 25 ft
Location	4M N Richey
NBI structure number	L11500003+08001
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
S 200s-towne St over Yellowstone River	1958	8,821	Fair
I 94 over Bad Route Creek	1973	4,438	Fair
I 94 over Cracker Box Creek	1973	4,317	Fair
I 94 over Clear Creek	1973	4,317	Poor
I 94 over Whoopup Creek	1976	4,221	Fair
I 94 over Sand Creek	1976	4,221	Fair