Smith County Bridge Report Card
Smith County scores 89 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Smith County, Mississippi
Smith County has 175 bridges in the National Bridge Inventory, with 7 rated poor and 2 rated scour-critical. Its poor-condition share of 4.0% is at or below the 5.8% statewide average. Poor-condition bridges carry about 373 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Smith County a Bridge Condition Exposure Score of 89/100 (B). The county has 175 bridges in the National Bridge Inventory, including 7 in poor condition and 2 rated scour-critical. Poor-condition bridges carry about 373 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 | 4.0% | 8.0 |
| Poor-condition traffic exposure | 25 | 0.3% of measured traffic | 0.2 |
| Scour-critical bridge share | 20 | 1.1% | 2.3 |
| Average age vs national baseline | 10 | 35 years vs 48 nationally | 0.0 |
| Traffic-data completeness | 5 | 127,408 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 | 4.0% |
| State Poor-Condition Share | 5.8% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 1.1% |
| Average Bridge Age | 35 years |
| Poor-Condition Traffic Exposure | 373 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Smith County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| Smith Co. 529 over Bch Of W Tallahala Creek | Poor condition + traffic exposure | Poor | 140 | 1958 |
| Smith Co 538 - B over Davis Creek | Poor condition + traffic exposure | Poor | 80 | 1960 |
| Smith Co. 110 over Hatchapaloo Creek | Poor condition + traffic exposure | Poor | 40 | 1950 |
| Smith Co. 60 over Clear Creek | Poor condition + traffic exposure | Poor | 40 | 1950 |
| Smith Co. 146 over Relief For Raspberry Ck | Poor condition + traffic exposure | Poor | 33 | 1999 |
| Smith Co. 146 over Raspberry Creek | Poor condition + traffic exposure | Poor | 20 | 1966 |
| Smith Co. 150-a over Bch Of Davis Creek | Poor condition + traffic exposure | Poor | 20 | 1975 |
| Smith Co. 80 over Leaf River | Scour-critical foundation rating | Fair | 100 | 2002 |
| Smith Co. 133 over Jump Creek | Scour-critical foundation rating | Good | 60 | 1997 |
| SR 28 over Leaf River | High traffic | Fair | 5,800 | 1973 |
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.