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.

Total bridges

261

Public highway bridges in Doña Ana County

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

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).

Source FHWA National Bridge Inventory (year built) As of 2024 NBI release

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.

Bridge inventory size and condition shares for Doña Ana County and the 5 New Mexico counties closest to it in inventory size
County Bridges Poor
McKinley County 289 8.3%
Doña Ana County (this page) 261 3.1%
Santa Fe County 255 1.6%
Socorro County 188 7.4%
Sandoval County 182 4.9%
San Miguel County 175 8%

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).

Similar average build year

Nearest mean year-built outside NM (1975 here).

Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.

All bridges (261)

Triviz Drive

Good

Over: Unnamed Waterway

.07 Triviz Drive, Doña Ana, NM

Built 2006 Load: 32.7 t ADT: 8,510

Boxter Way

Good

Over: Alameda Arroyo

0.1 M N Bently Drive, Doña Ana, NM

Built 2006 Load: 32.7 t ADT: 299

FR-1035

Good

Over: UNNAMED WATERWAY

6.3 MI NORTH OF NM-404, Doña Ana, NM

Built 1993 Load: 32.7 t ADT: 2,123

FR-1035

Good

Over: UNNAMED WATERWAY

2.75 MI N OF JCT. NM-404, Doña Ana, NM

Built 1993 Load: 32.7 t ADT: 744

FR-1035

Good

Over: UNNAMED WATERWAY

4.8 MI N OF JCT NM-404, Doña Ana, NM

Built 1993 Load: 32.7 t ADT: 2,123

FR-1035

Good

Over: UNNAMED WATERWAY

1.4 MI N OF JCT. NM-404, Doña Ana, NM

Built 1993 Load: 32.7 t ADT: 1,758

WSMR P ROUTE 7

Good

Over: STORM DRAINAGE

2 MILES N FROM RR7B0007, Doña Ana, NM

Built 1965 Load: 32.7 t ADT: 100

WSMR P ROUTE 7

Good

Over: STORM DRAINAGE

2 MILES N FROM RR7B0008, Doña Ana, NM

Built 1965 Load: 32.7 t ADT: 100

I-25 SBL

Good

Over: Cholla Road

6.0 M S I-25/US-70/CRUCES, Doña Ana, NM

Built 1968 Load: 33.1 t ADT: 8,992

I-25 NBL

Good

Over: Cholla Road

6.0 M S Jct I-25/ US-70, Doña Ana, NM

Built 1968 Load: 33.5 t ADT: 8,992

US-70

Good

Over: Holman Road / Dunn Drive

6.3 mi east of I-25 Exit, Doña Ana, NM

Built 2003 Load: 34.5 t ADT: 14,175

US-70

Good

Over: Hollman Road / Dunn Driv

6.3 mi east of I-25 exit, Doña Ana, NM

Built 2007 Load: 34.5 t ADT: 14,175

US-70 EBL

Good

Over: NASA Road

10.7 Mi E of I-25 Exit-6, Doña Ana, NM

Built 2003 Load: 35.4 t ADT: 14,175

US-70 WBL

Good

Over: NASA Road

10.7 Mi E of I-25 Exit-6, Doña Ana, NM

Built 2003 Load: 35.4 t ADT: 14,175

IA-2006

Good

Over: US-70 WB FRONTAGE ROAD

US-70/I-25 INTERCHANGE, Doña Ana, NM

Built 2002 Load: 35.6 t ADT: 3,105

NM-101

Good

Over: I-25 NB and SB

Jct of I-25 and NM-101, Doña Ana, NM

Built 2022 Load: 36.3 t ADT: 20,593

NM-404

Good

Over: I-10 EBL and WBL

Junction I-10/NM-404, Doña Ana, NM

Built 1985 Load: 36.6 t ADT: 9,696

I-10 WBL

Good

Over: I-25 SB off ramp

Jct I-10/I-25 Las Cruces, Doña Ana, NM

Built 2013 Load: 37.4 t ADT: 36,937

I-10 EBL

Good

Over: I-25 SB off ramp to I-10

Jct 1-10/I-25 Las Cruces, Doña Ana, NM

Built 2013 Load: 37.4 t ADT: 36,937

US-70 WBL

Good

Over: Owen Road

19.4 MI E of I-25/US-70, Doña Ana, NM

Built 2005 Load: 38.1 t ADT: 6,542

I-25 NBL

Good

Over: NM-320

9.7 M N Jct of I-25, Doña Ana, NM

Built 2007 Load: 39.4 t ADT: 10,751

I-25 SBL

Good

Over: NM-320

Dona Ana Interchange, Doña Ana, NM

Built 2007 Load: 39.4 t ADT: 7,679

US-70 EBL

Good

Over: OWEN ROAD(WSNR)INTERCHGE

19.47 M E US-70/I-25 INT, Doña Ana, NM

Built 2005 Load: 39.9 t ADT: 6,542

US-70 EBL

Good

Over: Sonoma Ranch Blvd

2.3 Mi E Jct I-25/US-70, Doña Ana, NM

Built 2003 Load: 40.5 t ADT: 46,597

US-70 WBL

Good

Over: Sonoma Ranch Blvd

2.3 Mi E of Jct I-25/US70, Doña Ana, NM

Built 2003 Load: 40.5 t ADT: 46,597

I-25 SB and NB

Good

Over: Missouri Avenue

3.7 MS Jct I-25 and US-70, Doña Ana, NM

Built 2017 Load: 42.0 t ADT: 44,304

I-10 WBL

Good

Over: E. UNION AVENUE

1.8 M E Jct I_10/NM-26, Doña Ana, NM

Built 1971 Load: 43.1 t ADT: 19,786

I-25 NBL and SBL

Good

Over: Engler Road

7.73 M N Jct I-10/I-25, Doña Ana, NM

Built 2013 Load: 43.9 t ADT: 15,512

NM-136

Good

Over: Union Pacific Railroad

3.1 MI SW OF NM-273, Doña Ana, NM

Built 1996 Load: 44.1 t ADT: 5,679

I-10 EBL

Good

Over: UNION AVENUE

1.8 M E Jct I-10/NM-26, Doña Ana, NM

Built 1971 Load: 44.6 t ADT: 19,786

NM-28

Good

Over: San Miguel Lateral

19.4 M N OF TEXAS ST LINE, Doña Ana, NM

Built 2017 Load: 45.5 t ADT: 3,180

US-70 EBL

Good

Over: Brahman Road

9.6 Mi E of I-25 Exit-6, Doña Ana, NM

Built 2003 Load: 47.4 t ADT: 14,175

NM-228

Good

Over: I-10 WBL/EBL Mesquite

Jct of I-10/NM-228, Doña Ana, NM

Built 2015 Load: 47.4 t ADT: 502

TRAINING AREA RD

Good

Over: HWY 54 7 RR

HWY 54 OVERPASS, Doña Ana, NM

Built 2013 Load: 48.6 t ADT: 100

I-10 EBL

Good

Over: NM-28

5.7 M E of I-10 exit 135, Doña Ana, NM

Built 2015 Load: 49.2 t ADT: 23,859

I-10 WBL

Good

Over: NM-28 Avenida De Mesilla

5.7 M E of I-10 exit 135, Doña Ana, NM

Built 2015 Load: 49.2 t ADT: 23,186

I-10 EB off Ramp

Good

Over: I-25

I-10/I-25 Interchange, Doña Ana, NM

Built 2013 Load: 50.3 t ADT: 2,215

I-10 EB off Ramp

Good

Over: I-10

I-10/I-25 Interchange, Doña Ana, NM

Built 2013 Load: 50.3 t ADT: 2,215

NM-228

Good

Over: EASTSIDE CANAL

0.2 MI E OF NM-478, Doña Ana, NM

Built 1962 Load: 53.6 t ADT: 3,159

IA-2006

Good

Over: EB BATAAN MEMORIAL FR.

US-70/I-25 INTERCHANGE, Doña Ana, NM

Built 2002 Load: 56.2 t ADT: 5,756

NM-186

Good

Over: LA UNION MAIN CANAL

0.7 MI E OF JCT NM-28, Doña Ana, NM

Built 2017 Load: 62.2 t ADT: 892

NM-185

Good

Over: Unnamed waterway

11.2 M N NM 157/NM-185, Doña Ana, NM

Built 2015 Load: 65.3 t ADT: 798

HWY 213

Good

Over: DRAINAGE DITCH

DONA ANA RANGE RD, Doña Ana, NM

Built 1941 Load: 71.9 t ADT: 600

E070

Good

Over: Rincon Arroya

6.5 MN of I-25 Ex 32, Doña Ana, NM

Built 2018 Load: 81.6 t ADT: 236

HWY 213

Good

Over: DRAINAGE DITCH

DONA ANA RANGE RD HWY 213, Doña Ana, NM

Built 1941 Load: 90.1 t ADT: 600

HWY 213

Good

Over: DRAINAGE DITCH

DONA ANA RANGE RD HWY 213, Doña Ana, NM

Built 1941 Load: 90.1 t ADT: 600

HWY 213

Good

Over: Drainage Ditch

DONA ANA RANGE RD HWY 213, Doña Ana, NM

Built 1941 Load: 96.6 t ADT: 600

SVAD Access Road

Good

Over: Storm Drainage

0.15 MI S of HWY 213, Doña Ana, NM

Built 2017 Load: 97.2 t ADT: 25

HWY 213

Good

Over: DRAINAGE DITCH

DONA ANA RANGE RD HWY 213, Doña Ana, NM

Built 1941 Load: 97.2 t ADT: 600

HWY 213

Good

Over: DRAINAGE DITCH

DONA ANA RANGE HWY 213, Doña Ana, NM

Built 1941 Load: 97.2 t ADT: 600
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.