Decatur County Bridge Report Card
Decatur County scores 84 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Decatur County, Tennessee
Decatur County has 104 bridges in the National Bridge Inventory, with 1 rated poor and 7 rated scour-critical. Its poor-condition share of 1.0% is at or below the 4.4% statewide average. Poor-condition bridges carry about 294 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Decatur County a Bridge Condition Exposure Score of 84/100 (B). The county has 104 bridges in the National Bridge Inventory, including 1 in poor condition and 7 rated scour-critical. Poor-condition bridges carry about 294 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 | 1.0% | 1.9 |
| Poor-condition traffic exposure | 25 | 0.2% of measured traffic | 0.1 |
| Scour-critical bridge share | 20 | 6.7% | 13.5 |
| Average age vs national baseline | 10 | 43 years vs 48 nationally | 0.0 |
| Traffic-data completeness | 5 | 165,112 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 | 1.0% |
| State Poor-Condition Share | 4.4% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 6.7% |
| Average Bridge Age | 43 years |
| Poor-Condition Traffic Exposure | 294 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Decatur County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| Fas 69 over Stewmans Creek | Poor condition + traffic exposure | Poor | 294 | 1950 |
| Fap 69 over Cub Creek | Scour-critical foundation rating | Fair | 5,257 | 1973 |
| Fap 69 over Lick Creek | Scour-critical foundation rating | Fair | 3,516 | 1966 |
| Nfa 5577 (sa 2005) over Sulphur Fork Cub Creek | Scour-critical foundation rating | Fair | 886 | 1954 |
| Fas 202 over Stewman Creek | Scour-critical foundation rating | Fair | 501 | 1970 |
| Nfa A511 over Pikes Peak Branch | Scour-critical foundation rating | Fair | 320 | 1960 |
| Nfa 5577 (sa 2007) over Cub Creek | Scour-critical foundation rating | Fair | 202 | 1954 |
| I40 over Nfa A046 | High traffic | Fair | 31,176 | 1965 |
| I40 over Nfa A046 | High traffic | Fair | 31,176 | 1965 |
| Fap 20 over Buckner Creek | High traffic | Fair | 7,452 | 1932 |
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.