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Every bridge in Prairie County, Montana

46 inventoried bridges, busiest first

United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled

BridgeBuiltVehicles/dayCondition
I 94 over Ash Creek19693,878Fair
I 94 over Int Powder River19713,045Fair
I 94 over RR19772,219Fair
I 94 over Yellowstone River19782,219Fair
I 94 over Yellowstone River19782,219Fair
I 94 over Int Powder River19712,137Fair
I 94 over Powder River19712,137Fair
I 94 over Powder River19712,137Fair
I 94 over Sep Montana Road19712,137Fair
I 94 over Sep Montana Road19712,137Fair
I 94 over O`fallon Creek19691,939Good
I 94 over O`fallon Creek19691,939Fair
I 94 over RR19691,939Fair
I 94 over RR19691,939Fair
I 94 over RR19771,939Fair
Ten Mile Rd over Int Terry-i 9419711,114Fair
Old Hwy 10 E over O`fallon Creek 0431948507Fair
Old Hwy 10 E over RR 0461934507Fair
Old Hwy 10 W over Conn`s Coulee 0211930507Fair
Old Hwy 10 W over Drainage 0221930507Fair
Old Hwy 10 W over Powder River 0401945507Fair
Old Hwy 10 W over Williams Coulee 0071930507Poor
S 253 over Cherry Creek2007441Fair
S 253 over Yellowstone River1959441Fair
S 253 over Brackett Creek1935404Fair
S 253 over Cedar Creek1935404Poor
S 253 over Cedar Creek1947368Fair
S 253 over Drainage1940368Fair
S 253 over Drainage1940368Poor
S 340 over Int Fallon-i 941978367Fair
S 340 over Plum Coulee Creek2020162Good
Cabin Creek Rd over Cabin Creek 0082012100Good
Conns Coulee Rd over Sep Jens I 94 0021971100Fair
County Road 119 over Br Main Canal 0381936100Fair
Fallon Tower Rd over Sep I 94 0031977100Fair
Frontage Road 114 over Yellowstone River 0151945100Fair
Frontage Road 168 over Sep I 94 0011969100Fair
Spring Creek Rd over Cabin Creek 0111933100Fair
Ten Mile Rd over Coal Creek 0051987100Fair
Cb Route Rd over Br Main Canal 035192880Poor
Cb Route Rd over Br Main Canal 036193880Poor
Cb Route Rd over Br Main Canal 037196680Fair
Cb Route Rd over Buffalo Rapids CANAL042193980Fair
Milwaukee Rd over Yellowstone River 030190737Fair
Whitney Creek Rd over O`fallon Creek 017200332Good
Cabin Creek Rd over Cabin Creek198827Fair

Source: FHWA National Bridge Inventory, 2025.

Prairie County bridge conditions · Montana bridges by county.

Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.