Karnes County Bridge Report Card
Karnes County scores 86 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Karnes County, Texas
Karnes County has 145 bridges in the National Bridge Inventory, with 2 rated poor and 4 rated scour-critical. Its poor-condition share of 1.4% is above the 1.2% statewide average. Poor-condition bridges carry about 190 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Karnes County a Bridge Condition Exposure Score of 86/100 (B). The county has 145 bridges in the National Bridge Inventory, including 2 in poor condition and 4 rated scour-critical. Poor-condition bridges carry about 190 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 | 1.4% | 2.8 |
| Poor-condition traffic exposure | 25 | 0.1% of measured traffic | 0.0 |
| Scour-critical bridge share | 20 | 2.8% | 5.5 |
| Average age vs national baseline | 10 | 62 years vs 48 nationally | 5.6 |
| Traffic-data completeness | 5 | 326,472 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 | 1.4% |
| State Poor-Condition Share | 1.2% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 2.8% |
| Average Bridge Age | 62 years |
| Poor-Condition Traffic Exposure | 190 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Karnes County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| CR 230 over Draw | Poor condition + traffic exposure | Poor | 90 | 1932 |
| CR 326 over San Antonio River | Poor condition + traffic exposure | Poor | 100 | 1973 |
| FM 1354 over Dry Ecleto Creek | Scour-critical foundation rating | Good | 252 | 2021 |
| CR 207 over San Antonio River | Scour-critical foundation rating | Fair | 242 | 2002 |
| FM 1020 over Yates Creek | Scour-critical foundation rating | Fair | 82 | 1953 |
| US 181 over Escondido Creek Draw | High traffic | Good | 17,860 | 1952 |
| US 181 over Escondido Creek Draw | High traffic | Good | 15,747 | 1952 |
| US 181 over Escondido Creek | High traffic | Fair | 15,330 | 1952 |
| FM 2102 over Panther Creek | High traffic | Fair | 7,537 | 1942 |
| US 181 over San Antonio River Draw | High traffic | Fair | 6,914 | 1929 |
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.