Putnam County Bridge Report Card
Putnam County scores 94 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Putnam County, Tennessee
Putnam County has 167 bridges in the National Bridge Inventory, with 3 rated poor and 1 rated scour-critical. Its poor-condition share of 1.8% is at or below the 4.4% statewide average. Poor-condition bridges carry about 5,860 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Putnam County a Bridge Condition Exposure Score of 94/100 (A). The county has 167 bridges in the National Bridge Inventory, including 3 in poor condition and 1 rated scour-critical. Poor-condition bridges carry about 5,860 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 | 1.8% | 3.6 |
| Poor-condition traffic exposure | 25 | 0.4% of measured traffic | 0.3 |
| Scour-critical bridge share | 20 | 0.6% | 1.2 |
| Average age vs national baseline | 10 | 49 years vs 48 nationally | 0.5 |
| Traffic-data completeness | 5 | 1,447,691 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 | 1.8% |
| State Poor-Condition Share | 4.4% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 0.6% |
| Average Bridge Age | 49 years |
| Poor-Condition Traffic Exposure | 5,860 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Putnam County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| Fas 135 over Dry Creek | Poor condition + traffic exposure | Poor | 2,958 | 1940 |
| Fap 401 (sr 24) over SR 24 / I40 | Poor condition + traffic exposure | Poor | 2,882 | 1965 |
| Nfa A012 over Big Indian Creek | Poor condition + traffic exposure | Poor | 20 | 1935 |
| Nfa 2230 (sa 7104) over Martin Creek | Scour-critical foundation rating | Fair | 92 | 1973 |
| I40 over SR 136 | High traffic | Fair | 56,102 | 1960 |
| I40 over SR 136 | High traffic | Fair | 56,102 | 1960 |
| I40 over Cane Creek | High traffic | Fair | 53,413 | 1960 |
| I40 over Cane Creek | High traffic | Fair | 53,413 | 1960 |
| I40 over Maxwell Branch | High traffic | Fair | 51,443 | 1961 |
| I40 over I-40 EB / Elmore Town RD | High traffic | Fair | 48,916 | 1960 |
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.