DeKalb County Bridge Report Card
DeKalb County scores 80 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
DeKalb County, Tennessee
DeKalb County has 101 bridges in the National Bridge Inventory, with 8 rated poor and 0 rated scour-critical. Its poor-condition share of 7.9% is above the 4.4% statewide average. Poor-condition bridges carry about 9,969 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives DeKalb County a Bridge Condition Exposure Score of 80/100 (B). The county has 101 bridges in the National Bridge Inventory, including 8 in poor condition and 0 rated scour-critical. Poor-condition bridges carry about 9,969 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 | 7.9% | 15.8 |
| Poor-condition traffic exposure | 25 | 5.6% of measured traffic | 4.2 |
| Scour-critical bridge share | 20 | 0.0% | 0.0 |
| Average age vs national baseline | 10 | 49 years vs 48 nationally | 0.4 |
| Traffic-data completeness | 5 | 177,019 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 | 7.9% |
| State Poor-Condition Share | 4.4% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 0.0% |
| Average Bridge Age | 49 years |
| Poor-Condition Traffic Exposure | 9,969 vehicles/day |
Bridges to Watch
Top Bridges to Watch in DeKalb County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| Fap 56 over Fall Creek | Poor condition + traffic exposure | Poor | 6,573 | 1971 |
| Fap 53 over Smith Fork Creek | Poor condition + traffic exposure | Poor | 1,370 | 1948 |
| Nfa A548 over Hickman Creek | Poor condition + traffic exposure | Poor | 1,010 | 1951 |
| Fap 53 over Sycamore Creek | Poor condition + traffic exposure | Poor | 776 | 1947 |
| Nfa A013 over Smith Fork Creek | Poor condition + traffic exposure | Poor | 170 | 2007 |
| Nfa A237 over Sink Creek | Poor condition + traffic exposure | Poor | 40 | 1930 |
| Nfa A330 over Dry Creek | Poor condition + traffic exposure | Poor | 20 | 1922 |
| Nfa A320 over Dry Creek | Poor condition + traffic exposure | Poor | 10 | 1970 |
| Fap 26 over Fall Creek | High traffic | Fair | 12,677 | 1951 |
| Fap 26 over Branch | High traffic | Fair | 8,478 | 1953 |
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.