Powder River County Bridge Report Card

Powder River County scores 91 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

A91 / 100

Local infrastructure snapshot

Powder River County, Montana

Powder River County has 23 bridges in the National Bridge Inventory, with 0 rated poor and 1 rated scour-critical. Its poor-condition share of 0.0% is at or below the 7.4% statewide average.

23Total Bridges

0Poor (0.0%)

11Fair (47.8%)

1Scour-Critical

Quote-Ready Local Facts

0.0%of county bridges are in poor condition, compared with 7.4% statewide and 6.7% nationally.

0daily vehicle crossings are on poor-condition bridges in the county.

1bridges are rated scour-critical, or 4.3% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Powder River County a Bridge Condition Exposure Score of 91/100 (A). The county has 23 bridges in the National Bridge Inventory, including 0 in poor condition and 1 rated scour-critical. Poor-condition bridges carry about 0 daily vehicle crossings. Poor condition does not mean unsafe; bridges judged unsafe are closed or restricted by transportation agencies.

Download all county report-card scores as CSV.

How the Score Breaks Down

Factor	Weight	County Value	Penalty
Poor-condition bridge share	40	0.0%	0.0
Poor-condition traffic exposure	25	0.0% of measured traffic	0.0
Scour-critical bridge share	20	4.3%	8.7
Average age vs national baseline	10	38 years vs 48 nationally	0.0
Traffic-data completeness	5	14,431 measured daily crossings	0.0

Score = 100 minus weighted penalties. The score is a comparative research signal, not an official safety rating. Read the full methodology.

County Comparisons

County Poor-Condition Share	0.0%
State Poor-Condition Share	7.4%
National Poor-Condition Share	6.7%
County Scour-Critical Share	4.3%
Average Bridge Age	38 years
Poor-Condition Traffic Exposure	0 vehicles/day

Bridges to Watch

Oldest Listed BridgeCamp Creek RD over Pumpkin Creek 021 — built in 1915 All County BridgesBrowse every bridge record in Powder River County.

Top Bridges to Watch in Powder River County

Bridge	Reason	Condition	Daily Traffic	Year Built
Moorhead RD over Powder River 006	Scour-critical foundation rating	Good	100	2022
US 212 over Little Powder River	High traffic	Fair	2,594	1976
US 212 over E Fk Little Powder River	High traffic	Fair	2,594	1983
US 212 over E Fork Otter Creek	High traffic	Good	2,305	1992
US 212 over Pumpkin Creek	High traffic	Good	2,197	2012
US 212 over Powder River	High traffic	Good	2,084	1985
S 59 over Mizpah Creek	High traffic	Good	742	2001
S 59 over Road Creek-stockpass	High traffic	Good	742	2001
S 544 over Little Powder River	High traffic	Fair	139	1974
Big Powder R E RD over Little Powder River 028	High traffic	Fair	107	1947

Important safety note

Poor condition does not mean a bridge is unsafe. It means at least one major component has significant deterioration and the bridge is a priority for maintenance, repair, or replacement. Bridges judged unsafe are closed or restricted by transportation agencies.