Jefferson County Bridge Report Card
Jefferson County scores 69 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Jefferson County, Tennessee
Jefferson County has 123 bridges in the National Bridge Inventory, with 15 rated poor and 0 rated scour-critical. Its poor-condition share of 12.2% is above the 4.4% statewide average. Poor-condition bridges carry about 43,299 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Jefferson County a Bridge Condition Exposure Score of 69/100 (D). The county has 123 bridges in the National Bridge Inventory, including 15 in poor condition and 0 rated scour-critical. Poor-condition bridges carry about 43,299 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 | 12.2% | 24.4 |
| Poor-condition traffic exposure | 25 | 2.3% of measured traffic | 1.7 |
| Scour-critical bridge share | 20 | 0.0% | 0.0 |
| Average age vs national baseline | 10 | 59 years vs 48 nationally | 4.6 |
| Traffic-data completeness | 5 | 1,864,218 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 | 12.2% |
| State Poor-Condition Share | 4.4% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 0.0% |
| Average Bridge Age | 59 years |
| Poor-Condition Traffic Exposure | 43,299 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Jefferson County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| Fap 34 731386t over SR 34 Lf LN / Sou Rr | Poor condition + traffic exposure | Poor | 18,750 | 1953 |
| Fas 9 over Koontz Creek | Poor condition + traffic exposure | Poor | 7,782 | 1930 |
| Fas 9 over Rimmer Creek | Poor condition + traffic exposure | Poor | 7,782 | 1934 |
| Fas 9 over Dumplin Creek | Poor condition + traffic exposure | Poor | 3,293 | 1930 |
| Fap 92 over Muddy Creek | Poor condition + traffic exposure | Poor | 1,648 | 1946 |
| Nfa 1430 over Long Creek | Poor condition + traffic exposure | Poor | 1,066 | 1965 |
| Fas 363 over Indian Creek | Poor condition + traffic exposure | Poor | 1,020 | 1942 |
| Nfa 2516 (sa 4527) over Carter Creek | Poor condition + traffic exposure | Poor | 414 | 1918 |
| Nfa 2453 (sa 4508) over Lewis Creek | Poor condition + traffic exposure | Poor | 402 | 1934 |
| Nfa 2510 over Lost Creek | Poor condition + traffic exposure | Poor | 301 | 1940 |
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.