Dona Ana County Bridge Report Card
Dona Ana County scores 86 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Dona Ana County, New Mexico
Dona Ana County has 261 bridges in the National Bridge Inventory, with 11 rated poor and 4 rated scour-critical. Its poor-condition share of 4.2% is at or below the 4.3% statewide average. Poor-condition bridges carry about 56,872 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Dona Ana County a Bridge Condition Exposure Score of 86/100 (B). The county has 261 bridges in the National Bridge Inventory, including 11 in poor condition and 4 rated scour-critical. Poor-condition bridges carry about 56,872 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 | 4.2% | 8.4 |
| Poor-condition traffic exposure | 25 | 2.1% of measured traffic | 1.6 |
| Scour-critical bridge share | 20 | 1.5% | 3.1 |
| Average age vs national baseline | 10 | 51 years vs 48 nationally | 1.1 |
| Traffic-data completeness | 5 | 2,738,460 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 | 4.2% |
| State Poor-Condition Share | 4.3% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 1.5% |
| Average Bridge Age | 51 years |
| Poor-Condition Traffic Exposure | 56,872 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Dona Ana County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| 13-e393 over Unnamed Waterway | Poor condition + traffic exposure | Poor | 337 | 1964 |
| I-10 Ebl over Nm-101 Nm-478 Bnsf Rr | Poor condition + traffic exposure | Poor | 27,926 | 2004 |
| I-10 WB over Nm-101 Nm-478 Bnsf R/r | Poor condition + traffic exposure | Poor | 23,859 | 2004 |
| Nm-320 over Irrigation Canal | Poor condition + traffic exposure | Poor | 2,605 | 1923 |
| Nm-226 over Irrigation Canal | Poor condition + traffic exposure | Poor | 1,358 | 1972 |
| 13-b036 over Irrigation Canal | Poor condition + traffic exposure | Poor | 337 | 1940 |
| Wsmr RT 7 over Storm Drainage | Poor condition + traffic exposure | Poor | 100 | 1965 |
| Wsmr RT 7 over Storm Drainage | Poor condition + traffic exposure | Poor | 100 | 1965 |
| Wsmr RT 7 over Storm Drainage | Poor condition + traffic exposure | Poor | 100 | 1965 |
| Headquarters AVE over Strom Drainage | Poor condition + traffic exposure | Poor | 100 | 2020 |
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.