Total bridges
107
Public highway bridges in Luna County
County profile · official public datasets
Luna County, NM
107 public highway bridges tracked in the FHWA National Bridge Inventory: 26.2% rated Good, 73.8% Fair, 0% Poor.
- 107
- Public bridges
- 26.2%
- Good condition
- 0%
- Poor condition
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Luna County pairs a top-10% lowest Poor-condition share among rated counties in the state with an older average build year than the state inventory.
- Top 6%
- lowest Poor share in state
- 0%
- Poor-condition share
- 107
- public highway bridges
- 1961
- 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.
Luna County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Luna County ranks #2 of 32 New Mexico counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 0%). Luna County, New Mexico contains 107 public highway bridges. Roughly 26.2% are rated “Good,” 73.8% “Fair,” and 0% “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
26.2%
28 of 107 rated 7-9
Fair condition
73.8%
79 of 107 rated 5-6
Poor condition
0%
0 of 107 rated 4 or below
In-state Poor-share rank
#2 of 32
Among New Mexico counties with 5+ bridges, lower share ranks better
Condition distribution
Share of 107 NBI-tracked bridges by lowest applicable component rating.
Good 26.2% (28)
Fair 73.8% (79)
Poor 0% (0)
93.5% of Luna County's bridges have passed the 50-year mark
100 of the 107 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 26.2% 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.
When Luna County's bridges were built
107 bridges with a recorded construction year, grouped by decade
- 1930s 10
1930–1939
10 bridges
- 1940s 19
1940–1949
19 bridges
- 1950s 9
1950–1959
9 bridges
- 1960s
1960–1969
61 bridges
- 1970s 1
1970–1979
1 bridges
- 1980s 3
1980–1989
3 bridges
- 2000s 2
2000–2009
2 bridges
- 2010s 2
2010–2019
2 bridges
What this shows Construction peaked in the 1960s, when 61 of the county's bridges still in the inventory were built, which is 57% of those with a recorded year. That cohort is now 55 to 64 years old in the 2024 inventory. Its average build year is 1961, 12 years older than the New Mexico average of 1973.
How Luna County compares with New Mexico's closest counties by inventory size
The 5 New Mexico counties nearest Luna County in number of bridges, with their condition splits. Its 0% Poor share is the 1st-lowest of these 6. Its average build year of 1961 against a peer-group mean of 1967 is 6 years older.
Showing the 5 closest of 31 New Mexico counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Chaves County | 120 | 33.3% | 64.2% | 2.5% | 1970 |
| Quay County | 118 | 34.7% | 58.5% | 6.8% | 1968 |
| Sierra County | 108 | 27.8% | 67.6% | 4.6% | 1971 |
| Luna County (this page) | 107 | 26.2% | 73.8% | 0% | 1961 |
| Catron County | 101 | 45.5% | 50.5% | 4% | 1962 |
| Grant County | 99 | 20.2% | 76.8% | 3% | 1963 |
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 Luna 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 Luna County, both outside New Mexico so the neighborhoods are not the same-state size table above.
Similar inventory size
Nearest county inventories outside NM (107 bridges here).
- Fannin County, GA · 107 bridges
- Habersham County, GA · 107 bridges
- Ware County, GA · 107 bridges
- Magoffin County, KY · 107 bridges
Similar average build year
Nearest mean year-built outside NM (1961 here).
- Westchester County, NY · avg 1961 · 774 bridges
- Tehama County, CA · avg 1961 · 450 bridges
- Berkshire County, MA · avg 1961 · 450 bridges
- Schuylkill County, PA · avg 1961 · 368 bridges
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
All bridges (107)
NM-26
GoodOver: UNNAMED WATERWAY
6.7 MI W OF JCT NM-27, Luna, NM
Built 1969 Load: 32.7 t ADT: 2,324
29-A009
GoodOver: PORTER DRAW
4 MI N OF US-180 @MP152.3, Luna, NM
Built 1981 Load: 32.7 t ADT: 363
I-10 WBL
GoodOver: Union Pacific Railroad
4.7 Mi W Dona Ana/Luna CL, Luna, NM
Built 2002 Load: 32.7 t ADT: 19,154
I-10 WBL
GoodOver: FL4336/Pearl Street
0.3 Mi E of Jct US-180, Luna, NM
Built 1969 Load: 33.0 t ADT: 15,343
NM-26
GoodOver: UNNAMED WATERWAY
0.9 MI W OF JCT NM-27, Luna, NM
Built 1969 Load: 33.7 t ADT: 2,324
NM-11
GoodOver: Palomas Creek
12.5 MI N OF MEX BORDER, Luna, NM
Built 2010 Load: 41.3 t ADT: 2,546
NM-377
GoodOver: MIMBRES RIVER
1.9 MI N OF NM-549, Luna, NM
Built 2009 Load: 49.3 t ADT: 318
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.