Lewis County Bridge Report Card
Lewis County scores 87 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Lewis County, Tennessee
Lewis County has 136 bridges in the National Bridge Inventory, with 4 rated poor and 2 rated scour-critical. Its poor-condition share of 2.9% is at or below the 4.4% statewide average. Poor-condition bridges carry about 3,750 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Lewis County a Bridge Condition Exposure Score of 87/100 (B). The county has 136 bridges in the National Bridge Inventory, including 4 in poor condition and 2 rated scour-critical. Poor-condition bridges carry about 3,750 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 | 2.9% | 5.9 |
| Poor-condition traffic exposure | 25 | 5.7% of measured traffic | 4.2 |
| Scour-critical bridge share | 20 | 1.5% | 2.9 |
| Average age vs national baseline | 10 | 47 years vs 48 nationally | 0.0 |
| Traffic-data completeness | 5 | 66,324 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 | 2.9% |
| State Poor-Condition Share | 4.4% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 1.5% |
| Average Bridge Age | 47 years |
| Poor-Condition Traffic Exposure | 3,750 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Lewis County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| Fap 48 over Rockhouse Creek | Poor condition + traffic exposure | Poor | 2,640 | 1931 |
| Nfa A180 over Piney Branch | Poor condition + traffic exposure | Poor | 600 | 1970 |
| Natchez Trace Park over Tn State Park Road | Poor condition + traffic exposure | Poor | 460 | 1968 |
| Nfa A098 over Buffalo River | Poor condition + traffic exposure | Poor | 50 | 1965 |
| Nfa 955 (sa 5110) over Indian Creek | Scour-critical foundation rating | Fair | 295 | 1960 |
| Nfa 5563 (sa 5104) over Buffalo River | Scour-critical foundation rating | Fair | 159 | 1967 |
| Fap 99 over Faucett Branch | High traffic | Fair | 3,836 | 1947 |
| Fap 99 over Swan Creek | High traffic | Good | 3,836 | 1952 |
| Fap 99 over Little Swan Creek | High traffic | Fair | 3,836 | 1996 |
| Fap 99 over Little Grinders Creek | High traffic | Good | 3,836 | 1996 |
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.