Polk County Bridge Report Card
Polk County scores 72 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Polk County, North Carolina
Polk County has 128 bridges in the National Bridge Inventory, with 16 rated poor and 1 rated scour-critical. Its poor-condition share of 12.5% is above the 7.1% statewide average. Poor-condition bridges carry about 11,990 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Polk County a Bridge Condition Exposure Score of 72/100 (C). The county has 128 bridges in the National Bridge Inventory, including 16 in poor condition and 1 rated scour-critical. Poor-condition bridges carry about 11,990 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 | 12.5% | 25.0 |
| Poor-condition traffic exposure | 25 | 2.6% of measured traffic | 1.9 |
| Scour-critical bridge share | 20 | 0.8% | 1.6 |
| Average age vs national baseline | 10 | 48 years vs 48 nationally | 0.0 |
| Traffic-data completeness | 5 | 468,055 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 | 12.5% |
| State Poor-Condition Share | 7.1% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 0.8% |
| Average Bridge Age | 48 years |
| Poor-Condition Traffic Exposure | 11,990 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Polk County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| Sr1138 over Green River | Poor condition + traffic exposure | Poor | 900 | 1980 |
| Nc9 over S.br.little White Oak CR | Poor condition + traffic exposure | Poor | 2,900 | 1967 |
| Sr1138 over Panther Creek | Poor condition + traffic exposure | Poor | 1,700 | 1961 |
| Sr1004 over Broad River | Poor condition + traffic exposure | Poor | 1,500 | 1949 |
| Sr1521 over Hooper Creek | Poor condition + traffic exposure | Poor | 760 | 1957 |
| Sr1122 over Cove Creek | Poor condition + traffic exposure | Poor | 750 | 1970 |
| Sr1501 over Ut To Wolfe Creek | Poor condition + traffic exposure | Poor | 550 | 1951 |
| Sr1128 (closed) over North Pacolet River | Poor condition + traffic exposure | Poor | 500 | 1959 |
| Sr1128 over Ut To North Pacolet Rive | Poor condition + traffic exposure | Poor | 500 | 1974 |
| Sr1310 over Walnut Creek | Poor condition + traffic exposure | Poor | 450 | 1966 |
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.