Billings County Bridge Report Card
Billings County scores 82 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Billings County, North Dakota
Billings County has 60 bridges in the National Bridge Inventory, with 2 rated poor and 2 rated scour-critical. Its poor-condition share of 3.3% is at or below the 11.1% statewide average. Poor-condition bridges carry about 1,310 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Billings County a Bridge Condition Exposure Score of 82/100 (B). The county has 60 bridges in the National Bridge Inventory, including 2 in poor condition and 2 rated scour-critical. Poor-condition bridges carry about 1,310 daily vehicle crossings. Poor condition does not mean unsafe; bridges judged unsafe are closed or restricted by transportation agencies.
How the Score Breaks Down
| Factor | Weight | County Value | Penalty |
|---|---|---|---|
| Poor-condition bridge share | 40 | 3.3% | 6.7 |
| Poor-condition traffic exposure | 25 | 6.2% of measured traffic | 4.6 |
| Scour-critical bridge share | 20 | 3.3% | 6.7 |
| Average age vs national baseline | 10 | 47 years vs 48 nationally | 0.0 |
| Traffic-data completeness | 5 | 21,207 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 | 3.3% |
| State Poor-Condition Share | 11.1% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 3.3% |
| Average Bridge Age | 47 years |
| Poor-Condition Traffic Exposure | 1,310 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Billings County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| Interstate 94 over Sheep Creek | Poor condition + traffic exposure | Poor | 1,300 | 1964 |
| Upper Magpie Road over North Creek | Poor condition + traffic exposure | Poor | 10 | 1916 |
| Interstate 94 over Little Missouri R. | Scour-critical foundation rating | Fair | 1,300 | 1964 |
| I-94 Business Loop over Little Missouri River | Scour-critical foundation rating | Fair | 730 | 1942 |
| Interstate 94 over Sheep Creek | High traffic | Fair | 2,600 | 1964 |
| Interstate 94 over West River Rd. Int. | High traffic | Fair | 1,525 | 1968 |
| Interstate 94 over West River Rd. Int. | High traffic | Fair | 1,525 | 1968 |
| Interstate 94 over Little Missouri R. | High traffic | Fair | 1,300 | 1964 |
| Interstate 94 over Sheep Creek | High traffic | Fair | 1,300 | 1964 |
| US Highway 85 over South Branch Green River | High traffic | Good | 1,210 | 1971 |
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.