DeKalb County Bridge Report Card
DeKalb County scores 95 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
DeKalb County, Georgia
DeKalb County has 392 bridges in the National Bridge Inventory, with 4 rated poor and 1 rated scour-critical. Its poor-condition share of 1.0% is at or below the 1.7% statewide average. Poor-condition bridges carry about 25,557 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives DeKalb County a Bridge Condition Exposure Score of 95/100 (A). The county has 392 bridges in the National Bridge Inventory, including 4 in poor condition and 1 rated scour-critical. Poor-condition bridges carry about 25,557 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% | 2.0 |
| Poor-condition traffic exposure | 25 | 0.2% of measured traffic | 0.1 |
| Scour-critical bridge share | 20 | 0.3% | 0.5 |
| Average age vs national baseline | 10 | 54 years vs 48 nationally | 2.6 |
| Traffic-data completeness | 5 | 14,294,010 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 | 1.7% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 0.3% |
| Average Bridge Age | 54 years |
| Poor-Condition Traffic Exposure | 25,557 vehicles/day |
Bridges to Watch
Top Bridges to Watch in DeKalb County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| Houston Mill Road over S Fork Peachtree Creek | Poor condition + traffic exposure | Poor | 12,400 | 1958 |
| Cedar Grove Road over Ns Railroad | Poor condition + traffic exposure | Poor | 11,000 | 1965 |
| Presidential Drive over N Fork Peachtree Creek | Poor condition + traffic exposure | Poor | 2,047 | 1967 |
| Stokes Road over St. Marys River | Poor condition + traffic exposure | Poor | 110 | 1978 |
| Us-17 (sr-5) over St. Marys River | Scour-critical foundation rating | Fair | 4,600 | 1927 |
| I-85 over N Fork Peachtree Creek | High traffic | Good | 296,000 | 1957 |
| I-285 over SR 13 Buford Highway | High traffic | Good | 234,000 | 1958 |
| I-285 over N Fork Nancy Creek | High traffic | Good | 230,000 | 1960 |
| I-285 over Nancy Creek | High traffic | Good | 225,000 | 1961 |
| I-285 over SR 141 Ptree Ind. Blvd. | High traffic | Fair | 225,000 | 1961 |
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.