Total bridges
261
Public highway bridges in Doña Ana County
County profile · official public datasets
Doña Ana County, NM
261 public highway bridges tracked in the FHWA National Bridge Inventory: 31.4% rated Good, 65.5% Fair, 3.1% Poor.
- 261
- Public bridges
- 31.4%
- Good condition
- 3.1%
- Poor condition
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Doña Ana County posts a better-than-median Poor-condition share among rated counties in the state across mid-size county bridge inventory.
- Top 47%
- lowest Poor share in state
- 3.1%
- Poor-condition share
- 261
- public highway bridges
- 1975
- avg year built
Poor is an FHWA condition category from the lowest applicable component rating (4 or below), not a live crossing-safety or closure decision. Rankings cover counties with at least five public highway bridges.
Doña Ana County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Doña Ana County ranks #15 of 32 New Mexico counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 3.1%). Doña Ana County, New Mexico contains 261 public highway bridges. Roughly 31.4% are rated “Good,” 65.5% “Fair,” and 3.1% “Poor.” Poor means the lowest applicable deck, superstructure, substructure, or culvert rating is 4 or below on the 0–9 NBI scale. It is a condition category, not a live safety or closure decision.
Responsible agencies inspect covered bridges on risk-based intervals under current NBIS rules and submit inventory data to FHWA annually. The list below shows every NBI-tracked bridge in the county. Use the “Sort by” controls to change the ordering, and click any row for its reported inspection date, traffic count, and condition fields.
Source: FHWA National Bridge Inventory. See methodology for full definitions.
Good condition
31.4%
82 of 261 rated 7-9
Fair condition
65.5%
171 of 261 rated 5-6
Poor condition
3.1%
8 of 261 rated 4 or below
In-state Poor-share rank
#15 of 32
Among New Mexico counties with 5+ bridges, lower share ranks better
Condition distribution
Share of 261 NBI-tracked bridges by lowest applicable component rating.
Good 31.4% (82)
Fair 65.5% (171)
Poor 3.1% (8)
Doña Ana County's Poor-condition bridges carry 48,533 vehicle crossings a day
That is 1.9% of the county's reported daily bridge traffic on 3.1% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 6,067 crossings a day against 11,222 for a Good-condition one. A Poor rating is a condition category, not a closure or a live safety judgement; it means the lowest applicable component rating is 4 or below.
Computed over the 261 of 261 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.
59% of Doña Ana County's bridges have passed the 50-year mark
154 of the 261 bridges with a recorded construction year were built in 1974 or earlier. Age alone is not a defect: a well-maintained older bridge can rate Good, and 31.4% of this county's inventory does. Even so, this older cohort is the population from which future Poor ratings are drawn, which is why the age profile below matters alongside the condition split above.
Cutoff derives from the 2024 release year minus a 50-year design life. Source: FHWA National Bridge Inventory, 2024 release.
One structure carries 49.2% of the county's Poor-condition bridge traffic
I-10 WB over NM-101 NM-478 BNSF R/R, built 2004, carries 23,859 vehicles a day, the most of any Poor-rated structure here. The county's Poor-condition exposure is concentrated rather than evenly spread, so the 8-bridge count understates how much of the daily burden sits on a single crossing.
Share is of the 48,533 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.
When Doña Ana County's bridges were built
261 bridges with a recorded construction year, grouped by decade
- 1910s 1
1910–1919
1 bridges
- 1920s 1
1920–1929
1 bridges
- 1930s 17
1930–1939
17 bridges
- 1940s 25
1940–1949
25 bridges
- 1950s 22
1950–1959
22 bridges
- 1960s
1960–1969
69 bridges
- 1970s
1970–1979
33 bridges
- 1980s 6
1980–1989
6 bridges
- 1990s 10
1990–1999
10 bridges
- 2000s
2000–2009
52 bridges
- 2010s 23
2010–2019
23 bridges
- 2020s 2
2020–2029
2 bridges
What this shows Construction peaked in the 1960s, when 69 of the county's bridges still in the inventory were built, which is 26.4% of those with a recorded year. That cohort is now 55 to 64 years old in the 2024 inventory. Its average build year (1975) matches the New Mexico average (1973).
How Doña Ana County compares with New Mexico's closest counties by inventory size
The 5 New Mexico counties nearest Doña Ana County in number of bridges, with their condition splits. Its 3.1% Poor share is the 2nd-lowest of these 6. Its average build year of 1975 against a peer-group mean of 1973 is in line with the group.
Showing the 5 closest of 31 New Mexico counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| McKinley County | 289 | 36.7% | 55% | 8.3% | 1976 |
| Doña Ana County (this page) | 261 | 31.4% | 65.5% | 3.1% | 1975 |
| Santa Fe County | 255 | 44.3% | 54.1% | 1.6% | 1979 |
| Socorro County | 188 | 16.5% | 76.1% | 7.4% | 1961 |
| Sandoval County | 182 | 40.7% | 54.4% | 4.9% | 1979 |
| San Miguel County | 175 | 41.1% | 50.9% | 8% | 1972 |
Each share is of that county's own total tracked bridges; peers are the counties with 5 or more bridges whose inventory size is closest to Doña Ana County's. Source: FHWA National Bridge Inventory, 2024 release.
Nationwide counties with similar inventory size or average build year
Two NBI-derived peer sets for Doña Ana County, both outside New Mexico so the neighborhoods are not the same-state size table above.
Similar inventory size
Nearest county inventories outside NM (261 bridges here).
- DeKalb County, IL · 261 bridges
- Montgomery County, IL · 261 bridges
- Russell County, KS · 261 bridges
- Vermilion County, LA · 261 bridges
Similar average build year
Nearest mean year-built outside NM (1975 here).
- San Bernardino County, CA · avg 1975 · 1,422 bridges
- Lane County, OR · avg 1975 · 1,010 bridges
- Fulton County, GA · avg 1975 · 775 bridges
- Westmoreland County, PA · avg 1975 · 620 bridges
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
Fair-condition bridges (171)
CR B-31
FairOver: IRRIGATION CANAL
0.3 MI E NM-478 @ MP 11.0, Doña Ana, NM
Built 1974 Load: 16.0 t ADT: 318
NM-390
FairOver: GARFIELD CANAL
1.9 MI NW OF JCT NM-187, Doña Ana, NM
Built 1954 Load: 16.3 t ADT: 375
NM-390
FairOver: GARFIELD CANAL
2.9 MI NW OF NM-187/SALEM, Doña Ana, NM
Built 1954 Load: 16.3 t ADT: 375
13-B016
FairOver: THREE SAINTS MAIN CANAL
.44 M E NM-478 @ MP. 7.14, Doña Ana, NM
Built 1972 Load: 20.9 t ADT: 318
13-D056
FairOver: LEASBURG CANAL
10.3 M N US-70/LAS CRUCES, Doña Ana, NM
Built 1940 Load: 20.9 t ADT: 318
NM-158
FairOver: LEASBURG CANAL
0.5 MI NE OF JCT NM-185, Doña Ana, NM
Built 1945 Load: 21.2 t ADT: 294
US-70 WBL/EBL
FairOver: I-25 SBL ON RAMP
0.1 M W I-25/US70 INTCHNG, Doña Ana, NM
Built 2002 Load: 22.2 t ADT: 21,094
NM-185
FairOver: MONTEZUMA ARROYO
2.1 MI N OF JCT NM-140, Doña Ana, NM
Built 1936 Load: 22.9 t ADT: 1,297
NM-549
FairOver: I-10 EBL/WBL
6.1 Mi E Luna/Dona Ana CL, Doña Ana, NM
Built 1965 Load: 23.4 t ADT: 26
I-10 EBL
FairOver: Local Road (NM 359)
2.4 Mi E of I-10 Exit-135, Doña Ana, NM
Built 1971 Load: 23.8 t ADT: 18,747
I-10 WBL
FairOver: Local Road
2.4 Mi E of I-10 Exit-135, Doña Ana, NM
Built 1971 Load: 23.8 t ADT: 18,747
US-70
FairOver: UNNAMED WATERWAY
6.1 M E NM-185/LAS CRUCES, Doña Ana, NM
Built 1933 Load: 24.3 t ADT: 46,597
NM-185
FairOver: UNNAMED WATERWAY
1.0 M N OF RADIUM SPRINGS, Doña Ana, NM
Built 1932 Load: 24.5 t ADT: 798
NM-185
FairOver: UNNAMED WATERWAY
1.7 MI N OF RADIUM SPRING, Doña Ana, NM
Built 1932 Load: 24.5 t ADT: 798
NM-187
FairOver: UNNAMED WATERWAY
7.8 MI N OF NM-26/HATCH, Doña Ana, NM
Built 1931 Load: 24.5 t ADT: 1,098
NM-187
FairOver: UNNAMED WATERWAY
5.6 MI N OF NM-26/HATCH, Doña Ana, NM
Built 1931 Load: 24.5 t ADT: 1,098
NM-187
FairOver: UNNAMED WATERWAY
4.6 MI N OF NM-26/HATCH, Doña Ana, NM
Built 1931 Load: 24.5 t ADT: 1,098
NM-185
FairOver: UNNAMED WATERWAY
7.0 MI N OF JCT NM-157, Doña Ana, NM
Built 1932 Load: 24.5 t ADT: 798
NM-185
FairOver: UNNAMED WATERWAY
6.7 MI N OF JCT NM-157, Doña Ana, NM
Built 1932 Load: 24.5 t ADT: 798
NM-185
FairOver: UNNAMED WATERWAY
0.7 M N OF RADIUM SPRINGS, Doña Ana, NM
Built 1932 Load: 24.5 t ADT: 798
13-D062
FairOver: LEASBURG CANAL
16.4 M N OF US-70/CRUCES, Doña Ana, NM
Built 1930 Load: 24.5 t ADT: 318
NM-185
FairOver: IRRIGATION CANAL
13.7 M N OF 70/LAS CRUCES, Doña Ana, NM
Built 1933 Load: 24.5 t ADT: 1,690
13-C052
FairOver: RIO GRANDE
5.3 M N OF US-70/FAIRACRE, Doña Ana, NM
Built 1941 Load: 24.5 t ADT: 1,228
NM-154
FairOver: RIO GRANDE
1.7 MI E OF NM-185/HATCH, Doña Ana, NM
Built 1941 Load: 24.5 t ADT: 871
NM-226
FairOver: RIO GRANDE
0.9 MI E OF JCT NM-28, Doña Ana, NM
Built 1941 Load: 24.5 t ADT: 1,273
NM-189
FairOver: RIO GRANDE
0.9 MI E OF JCT NM-28, Doña Ana, NM
Built 1941 Load: 24.5 t ADT: 2,886
NM-28
FairOver: WESTSIDE CANAL
11.0 M N OF TEXAS ST LINE, Doña Ana, NM
Built 1954 Load: 24.5 t ADT: 2,523
NM-185
FairOver: IRRIGATION CANAL
4.6M N OF US70/LAS CRUCES, Doña Ana, NM
Built 1933 Load: 24.5 t ADT: 4,149
NM-185
FairOver: LEASBURG CANAL
2.5M N OF US70/LAS CRUCES, Doña Ana, NM
Built 1933 Load: 24.5 t ADT: 6,696
NM-213
FairOver: UNNAMED WATERWAY
0.65 M N TX/NM STATE LINE, Doña Ana, NM
Built 1941 Load: 24.5 t ADT: 7,522
NM-213
FairOver: UNNAMED WATERWAY
2.82 M N TX/NM STATE LINE, Doña Ana, NM
Built 1941 Load: 24.5 t ADT: 1,896
NM-213
FairOver: UNNAMED WATERWAY
3.9 M N TX/NM STATE LINE, Doña Ana, NM
Built 1941 Load: 24.5 t ADT: 1,896
NM-213
FairOver: UNNAMED WATERWAY
4.7 MI N TEXAS/NEW MEXICO, Doña Ana, NM
Built 1941 Load: 24.5 t ADT: 1,896
13-Z022
FairOver: GARFIELD CANAL
.5 MI W OF NM187@MP 9.85, Doña Ana, NM
Built 1961 Load: 24.5 t ADT: 318
I-10 EBL
FairOver: Rio Grande & Local Road
3.5 Mi E of I-10 Exit-135, Doña Ana, NM
Built 1971 Load: 25.8 t ADT: 18,747
I-10 WBL
FairOver: Rio Grande/Local Rd
3.5 Mi E I-10 Exit-135, Doña Ana, NM
Built 1971 Load: 25.8 t ADT: 18,747
FR-2003
FairOver: Well-Geothermal Drive
0.9 M N Jct I-10 & I-25, Doña Ana, NM
Built 2001 Load: 25.8 t ADT: 7,220
13-A045
FairOver: LA UNION WEST LATERAL
0.5 MI W NM-28 @ MP 4.26, Doña Ana, NM
Built 1961 Load: 26.1 t ADT: 318
13-D051
FairOver: LEASBURG CANAL
.6 M EAST/ NM-185 MP 7.1, Doña Ana, NM
Built 1941 Load: 26.1 t ADT: 333
13-Z018
FairOver: UNNAMED WATERWAY
0.3 M E JCT NM154/NM140, Doña Ana, NM
Built 1970 Load: 26.1 t ADT: 318
13-B006
FairOver: IRRIGATION CANAL
.27 M S NM274/MESILLA DAM, Doña Ana, NM
Built 1938 Load: 26.3 t ADT: 318
13-Z030
FairOver: GARFIELD CANAL
0.3 MI W NM-390 @ MP 3.9, Doña Ana, NM
Built 1979 Load: 26.3 t ADT: 318
13-D039
FairOver: LEASBURG CANAL
6.1 M N US70/.4 M E NM185, Doña Ana, NM
Built 1974 Load: 26.9 t ADT: 306
13-D062
FairOver: LEASBURG CANAL
9.3 MI N OF US-70, Doña Ana, NM
Built 1954 Load: 27.8 t ADT: 820
NM-192
FairOver: RIO GRANDE
1.2 MI E OF NM-28, Doña Ana, NM
Built 1992 Load: 29.0 t ADT: 2,617
US-70 EBL/WBL
FairOver: DEL REY BOULAVARD
0.4 E JCT I-25/US-70, Doña Ana, NM
Built 2002 Load: 29.2 t ADT: 17,017
13-B057
FairOver: EAST SIDE CANAL
.95 M W NM-478 @ MP 15.98, Doña Ana, NM
Built 1956 Load: 29.4 t ADT: 343
13-0000
FairOver: COLORADO DRAIN
0.2 MILES ON FRANKLIN ST., Doña Ana, NM
Built 1982 Load: 29.4 t ADT: 358
US-70 EBL & WBL
FairOver: ROADRUNNER PARKWAY
1.2 M E OF EXIT 6 OF I-25, Doña Ana, NM
Built 2003 Load: 29.4 t ADT: 46,597
I-25 SBL
FairOver: Rincon Arroyo
0.2 M S Jct NM-140/I-25, Doña Ana, NM
Built 1966 Load: 29.7 t ADT: 7,493
Read our methodology - how this data is sourced, computed, and verified.
Related
Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainBridges
Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.