Pennington County Bridge Report Card
Pennington County scores 96 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Pennington County, Minnesota
Pennington County has 49 bridges in the National Bridge Inventory, with 1 rated poor and 0 rated scour-critical. Its poor-condition share of 2.0% is at or below the 4.5% statewide average. Poor-condition bridges carry about 35 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Pennington County a Bridge Condition Exposure Score of 96/100 (A). The county has 49 bridges in the National Bridge Inventory, including 1 in poor condition and 0 rated scour-critical. Poor-condition bridges carry about 35 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 | 2.0% | 4.1 |
| Poor-condition traffic exposure | 25 | 0.1% of measured traffic | 0.1 |
| Scour-critical bridge share | 20 | 0.0% | 0.0 |
| Average age vs national baseline | 10 | 39 years vs 48 nationally | 0.0 |
| Traffic-data completeness | 5 | 43,305 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 | 2.0% |
| State Poor-Condition Share | 4.5% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 0.0% |
| Average Bridge Age | 39 years |
| Poor-Condition Traffic Exposure | 35 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Pennington County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| CR 52 over Black River | Poor condition + traffic exposure | Poor | 35 | 1965 |
| US 59 over Red Lake River | High traffic | Fair | 9,400 | 1934 |
| Msas 115 over Red Lake River | High traffic | Fair | 6,900 | 2009 |
| Mn 1 over Thief River | High traffic | Fair | 5,800 | 1956 |
| Msas 111 over Red Lake River | High traffic | Fair | 5,200 | 1950 |
| Mn 32 over Ditch | High traffic | Fair | 2,500 | 1928 |
| Csah 3 over Red Lake River | High traffic | Fair | 2,100 | 1962 |
| Csah 3 over Black River | High traffic | Good | 1,950 | 1955 |
| Csah 3 over Cd # 96 | High traffic | Good | 1,950 | 1956 |
| Csah 7 over Red Lake River | High traffic | Fair | 940 | 1970 |
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.