Blount County Bridge Report Card
Blount County scores 90 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Blount County, Tennessee
Blount County has 216 bridges in the National Bridge Inventory, with 7 rated poor and 1 rated scour-critical. Its poor-condition share of 3.2% is at or below the 4.4% statewide average. Poor-condition bridges carry about 30,530 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Blount County a Bridge Condition Exposure Score of 90/100 (A). The county has 216 bridges in the National Bridge Inventory, including 7 in poor condition and 1 rated scour-critical. Poor-condition bridges carry about 30,530 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 | 3.2% | 6.5 |
| Poor-condition traffic exposure | 25 | 1.9% of measured traffic | 1.5 |
| Scour-critical bridge share | 20 | 0.5% | 0.9 |
| Average age vs national baseline | 10 | 51 years vs 48 nationally | 1.2 |
| Traffic-data completeness | 5 | 1,577,485 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 | 3.2% |
| State Poor-Condition Share | 4.4% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 0.5% |
| Average Bridge Age | 51 years |
| Poor-Condition Traffic Exposure | 30,530 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Blount County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| Nfa 5551 over Gallagher Creek | Poor condition + traffic exposure | Poor | 1,214 | 1930 |
| Fap 35 over SR 115 (us 129 Nb) | Poor condition + traffic exposure | Poor | 15,955 | 1959 |
| Fas 333 over Lackey Creek | Poor condition + traffic exposure | Poor | 6,958 | 1959 |
| Fau 33 over Roddy Branch | Poor condition + traffic exposure | Poor | 6,242 | 1924 |
| Nfa A066 347619f over Csx Railroad | Poor condition + traffic exposure | Poor | 120 | 1945 |
| Nfa A868 over Nine Mile Creek | Poor condition + traffic exposure | Poor | 40 | 1930 |
| Parson Branch Road over Parson Branch | Poor condition + traffic exposure | Poor | 1 | 1955 |
| Fap 115 over Tesla BLVD | High traffic | Good | 67,642 | 2023 |
| Fap 115 over I140 | High traffic | Good | 60,455 | 1991 |
| I140 over Old Topside RD / I140 | High traffic | Good | 43,920 | 1990 |
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.