Grainger County Bridge Report Card
Grainger County scores 87 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Grainger County, Tennessee
Grainger County has 88 bridges in the National Bridge Inventory, with 4 rated poor and 0 rated scour-critical. Its poor-condition share of 4.5% is above the 4.4% statewide average. Poor-condition bridges carry about 2,539 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Grainger County a Bridge Condition Exposure Score of 87/100 (B). The county has 88 bridges in the National Bridge Inventory, including 4 in poor condition and 0 rated scour-critical. Poor-condition bridges carry about 2,539 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 | 4.5% | 9.1 |
| Poor-condition traffic exposure | 25 | 1.2% of measured traffic | 0.9 |
| Scour-critical bridge share | 20 | 0.0% | 0.0 |
| Average age vs national baseline | 10 | 56 years vs 48 nationally | 3.1 |
| Traffic-data completeness | 5 | 204,856 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 | 4.5% |
| State Poor-Condition Share | 4.4% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 0.0% |
| Average Bridge Age | 56 years |
| Poor-Condition Traffic Exposure | 2,539 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Grainger County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| Fas 131 over Williams Creek | Poor condition + traffic exposure | Poor | 1,213 | 1973 |
| Nfa 2534 (sa 2902) over Richland Creek | Poor condition + traffic exposure | Poor | 887 | 1975 |
| Nfa 1274 (sa 2907) over Notchy Creek | Poor condition + traffic exposure | Poor | 268 | 1975 |
| Nfa 2544 over Williams Branch | Poor condition + traffic exposure | Poor | 171 | 1980 |
| Fap 1 over Meadow Creek | High traffic | Fair | 13,327 | 1945 |
| Fap 1 over SR 32 | High traffic | Good | 13,327 | 1998 |
| Fap 32 over Briar Fork Creek | High traffic | Fair | 10,846 | 1942 |
| Fap 1 over Branch | High traffic | Good | 10,315 | 2003 |
| Fap 32 over Indian Creek | High traffic | Fair | 8,247 | 1981 |
| Fap 32 over Clinch River | High traffic | Good | 8,247 | 2009 |
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.