Macon County Bridge Report Card
Macon County scores 87 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Macon County, Tennessee
Macon County has 169 bridges in the National Bridge Inventory, with 8 rated poor and 1 rated scour-critical. Its poor-condition share of 4.7% is above the 4.4% statewide average. Poor-condition bridges carry about 3,450 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Macon County a Bridge Condition Exposure Score of 87/100 (B). The county has 169 bridges in the National Bridge Inventory, including 8 in poor condition and 1 rated scour-critical. Poor-condition bridges carry about 3,450 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 | 4.7% | 9.5 |
| Poor-condition traffic exposure | 25 | 3.3% of measured traffic | 2.4 |
| Scour-critical bridge share | 20 | 0.6% | 1.2 |
| Average age vs national baseline | 10 | 42 years vs 48 nationally | 0.0 |
| Traffic-data completeness | 5 | 105,691 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 | 4.7% |
| State Poor-Condition Share | 4.4% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 0.6% |
| Average Bridge Age | 42 years |
| Poor-Condition Traffic Exposure | 3,450 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Macon County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| Nfa 2101 (sa 5603) over Long Creek | Poor condition + traffic exposure | Poor | 1,178 | 1962 |
| Fas 56 over Little Salt Lick Creek | Poor condition + traffic exposure | Poor | 1,352 | 1964 |
| Fas 261 over Salt Lick Creek | Poor condition + traffic exposure | Poor | 309 | 1967 |
| Nfa 2087 (sa 5607) over Branch | Poor condition + traffic exposure | Poor | 200 | 1965 |
| Nfa A345 over Salt Lick Crk | Poor condition + traffic exposure | Poor | 180 | 1950 |
| Nfa A463 over Carr Creek | Poor condition + traffic exposure | Poor | 80 | 1950 |
| Nfa 2103 over Long Fork Creek | Poor condition + traffic exposure | Poor | 80 | 1956 |
| Fas 56 over Jennings Creek | Poor condition + traffic exposure | Poor | 71 | 1983 |
| Fap 52 over Trammel Creek | High traffic | Good | 8,950 | 1992 |
| Fap 52 over Branch | High traffic | Good | 4,936 | 1970 |
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.