Total bridges
79
Public highway bridges in Mora County
County profile · official public datasets
Mora County, NM
79 public highway bridges tracked in the FHWA National Bridge Inventory: 32.9% rated Good, 59.5% Fair, 7.6% Poor.
- 79
- Public bridges
- 32.9%
- Good condition
- 7.6%
- Poor condition
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Mora County posts a higher-than-median Poor-condition share among rated counties in the state across rated county bridge inventory.
- 27th
- of 32 on Poor share
- 7.6%
- Poor-condition share
- 79
- public highway bridges
- 1971
- 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.
Mora County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Mora County ranks #27 of 32 New Mexico counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 7.6%). Mora County, New Mexico contains 79 public highway bridges. Roughly 32.9% are rated “Good,” 59.5% “Fair,” and 7.6% “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
32.9%
26 of 79 rated 7-9
Fair condition
59.5%
47 of 79 rated 5-6
Poor condition
7.6%
6 of 79 rated 4 or below
In-state Poor-share rank
#27 of 32
Among New Mexico counties with 5+ bridges, lower share ranks better
Condition distribution
Share of 79 NBI-tracked bridges by lowest applicable component rating.
Good 32.9% (26)
Fair 59.5% (47)
Poor 7.6% (6)
Mora County's Poor-condition bridges carry 449 vehicle crossings a day
That is 0.2% of the county's reported daily bridge traffic on 7.6% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 75 crossings a day against 2,791 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 79 of 79 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.
70.9% of Mora County's bridges have passed the 50-year mark
56 of the 79 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 32.9% 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 39.6% of the county's Poor-condition bridge traffic
33-C013 over MORA RIVER, built 1940, carries 178 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 6-bridge count understates how much of the daily burden sits on a single crossing.
Share is of the 449 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.
When Mora County's bridges were built
79 bridges with a recorded construction year, grouped by decade
- 1930s 8
1930–1939
8 bridges
- 1940s 3
1940–1949
3 bridges
- 1950s 5
1950–1959
5 bridges
- 1960s
1960–1969
21 bridges
- 1970s
1970–1979
20 bridges
- 1980s
1980–1989
12 bridges
- 1990s 4
1990–1999
4 bridges
- 2010s 3
2010–2019
3 bridges
- 2020s 3
2020–2029
3 bridges
What this shows Construction peaked in the 1960s, when 21 of the county's bridges still in the inventory were built, which is 26.6% of those with a recorded year. That cohort is now 55 to 64 years old in the 2024 inventory. Its average build year (1971) matches the New Mexico average (1973).
How Mora County compares with New Mexico's closest counties by inventory size
The 5 New Mexico counties nearest Mora County in number of bridges, with their condition splits. Its 7.6% Poor share is the 4th-lowest of these 6. Its average build year of 1971 against a peer-group mean of 1970 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 |
|---|---|---|---|---|---|
| Taos County | 94 | 38.3% | 51.1% | 10.6% | 1971 |
| Eddy County | 93 | 41.9% | 58.1% | 0% | 1978 |
| Guadalupe County | 82 | 23.2% | 67.1% | 9.8% | 1966 |
| Mora County (this page) | 79 | 32.9% | 59.5% | 7.6% | 1971 |
| Torrance County | 70 | 44.3% | 50% | 5.7% | 1963 |
| Union County | 68 | 55.9% | 41.2% | 2.9% | 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 Mora 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 Mora County, both outside New Mexico so the neighborhoods are not the same-state size table above.
Similar inventory size
Nearest county inventories outside NM (79 bridges here).
- Cleveland County, AR · 79 bridges
- Woodruff County, AR · 79 bridges
- Barrow County, GA · 79 bridges
- Edwards County, IL · 79 bridges
Similar average build year
Nearest mean year-built outside NM (1971 here).
- Wayne County, MI · avg 1971 · 1,026 bridges
- Baltimore County, MD · avg 1971 · 783 bridges
- Washington County, PA · avg 1971 · 655 bridges
- Linn County, OR · avg 1971 · 566 bridges
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
All bridges (79)
33-B017
GoodOver: MORA RIVER
0.1 MI N NM-518 @CLEVELND, Mora, NM
Built 1986 Load: 24.3 t ADT: 178
I-25 NBL
GoodOver: MORA RIVER
1.2 MI N OF S WATROUS EXT, Mora, NM
Built 1969 Load: 30.0 t ADT: 7,318
I-25 SBL
GoodOver: MORA RIVER
1.2 MI N OF S WATROUS EXT, Mora, NM
Built 1969 Load: 30.0 t ADT: 7,318
33-Z000
GoodOver: MORA RIVER
0.02 MI N OF JCT NM-518, Mora, NM
Built 1990 Load: 30.8 t ADT: 178
I-25 NBL
GoodOver: FR2151/FRONTAGE ROAD
13.3 MI S OF JCT NM-120, Mora, NM
Built 1967 Load: 32.4 t ADT: 6,698
I-25 SBL
GoodOver: FR2151/FRONTAGE ROAD
13.3 MI S OF JCT NM-120, Mora, NM
Built 1967 Load: 32.4 t ADT: 6,698
I-25 NBL/SBL
GoodOver: UNNAMED WATERWAY
9.8 MI S OF JCT NM-120, Mora, NM
Built 1968 Load: 32.4 t ADT: 6,698
I-25 NBL/SBL
GoodOver: UNNAMED WATERWAY
5.7 MI S OF JCT NM-120, Mora, NM
Built 1968 Load: 32.4 t ADT: 6,698
I-25 NBL/SBL
GoodOver: UNNAMED WATERWAY
3.8 MI S OF JCT NM-120, Mora, NM
Built 1940 Load: 32.4 t ADT: 6,698
NM-161
GoodOver: I-25 NBL/SBL
JUNCTION I-25/NM-161, Mora, NM
Built 1969 Load: 32.4 t ADT: 108
NM-442
GoodOver: LA JARA CREEK
8.7 MI N OF JCT NM-518, Mora, NM
Built 1969 Load: 32.4 t ADT: 153
I-25 NBL/SBL
GoodOver: UNNAMED WATERWAY
1.4 MI N OF JCT NM-120, Mora, NM
Built 1971 Load: 32.4 t ADT: 6,693
NM-120
GoodOver: UNNAMED WATERWAY
9.3 MI E I-25/WAGON MOUND, Mora, NM
Built 1973 Load: 32.4 t ADT: 211
33-063B
GoodOver: COYOTE CREEK
1.4 M N JCT NM442 @MP5.11, Mora, NM
Built 1987 Load: 32.4 t ADT: 178
33-A021
GoodOver: COYOTE CREEK
2.0 MI EAST OF JCT NM-434, Mora, NM
Built 1987 Load: 32.4 t ADT: 178
I-25 SBL
GoodOver: WOLF CREEK
19.2 MI S OF NM-120, Mora, NM
Built 1967 Load: 32.7 t ADT: 6,698
NM-434
GoodOver: MORA RIVER
0.1 MI N OF NM-518/MORA, Mora, NM
Built 2019 Load: 40.2 t ADT: 1,223
NM-434
GoodOver: Coyote Creek
19.9 MI N of NM-518/MORA, Mora, NM
Built 2023 Load: 44.4 t ADT: 1,186
NM-434
GoodOver: COYOTE CREEK
20.5 MI N OF NM-518/MORA, Mora, NM
Built 2023 Load: 44.4 t ADT: 1,186
NM-434
GoodOver: COYOTE CREEK
19.3 MI N OF NM-518/MORA, Mora, NM
Built 2019 Load: 45.2 t ADT: 1,172
NM-434
GoodOver: COYOTE CREEK
19.4 MI N OF NM-518/MORA, Mora, NM
Built 2019 Load: 45.2 t ADT: 1,172
NM-518
GoodOver: MORA RIVER
7.3 MI N MORA/SAN MIGUEL, Mora, NM
Built 2021 Load: 46.4 t ADT: 1,684
33-B014
GoodOver: MORA RIVER
0.2 MI E NM-518 @ MP-35.1, Mora, NM
Built 1990 Load: 50.2 t ADT: 178
NM-97
PoorOver: MORA RIVER
7.6 MI NE OF NM-161/NM-97, Mora, NM
Built 1930 Load: 14.3 t ADT: 35
NM-161
PoorOver: CEBOLLA CREEK
1.9 MI E OF JCT NM-518, Mora, NM
Built 1980 Load: 18.0 t ADT: 76
FR-2151
PoorOver: WOLF CREEK
19.2 MI S NM-120/WAGON MD, Mora, NM
Built 1953 Load: 24.3 t ADT: 35
FR-2151
PoorOver: OCATE CREEK
14.2 MI N OF JCT NM-120, Mora, NM
Built 1954 Load: 32.4 t ADT: 49
33-C013
PoorOver: MORA RIVER
.73 MI NE OF JCT NM-161, Mora, NM
Built 1940 Load: 34.0 t ADT: 178
NM-161
PoorOver: MORA RIVER
5.4 MI SE OF JCT NM-518, Mora, NM
Built 1975 Load: 40.5 t ADT: 76
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.