Total bridges
207
Public highway bridges in Las Animas County
County profile · official public datasets
Las Animas County, CO
207 public highway bridges tracked in the FHWA National Bridge Inventory: 26.1% rated Good, 59.9% Fair, 14% Poor.
- 207
- Public bridges
- 26.1%
- Good condition
- 14%
- Poor condition
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Las Animas County pairs a higher-than-median Poor-condition share among rated counties in the state with an older average build year than the state inventory.
- 62nd
- of 64 on Poor share
- 14%
- Poor-condition share
- 207
- public highway bridges
- 1968
- 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.
Las Animas County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Las Animas County ranks #62 of 64 Colorado counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 14%). Las Animas County, Colorado contains 207 public highway bridges. Roughly 26.1% are rated “Good,” 59.9% “Fair,” and 14% “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
26.1%
54 of 207 rated 7-9
Fair condition
59.9%
124 of 207 rated 5-6
Poor condition
14%
29 of 207 rated 4 or below
In-state Poor-share rank
#62 of 64
Among Colorado counties with 5+ bridges, lower share ranks better
Condition distribution
Share of 207 NBI-tracked bridges by lowest applicable component rating.
Good 26.1% (54)
Fair 59.9% (124)
Poor 14% (29)
Las Animas County's Poor-condition bridges carry 14,055 vehicle crossings a day
That is 3.1% of the county's reported daily bridge traffic on 14% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 485 crossings a day against 2,615 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 207 of 207 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.
61.8% of Las Animas County's bridges have passed the 50-year mark
128 of the 207 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 26.1% 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 60.5% of the county's Poor-condition bridge traffic
COUNTY ROAD over I 25 ML, built 1958, carries 8,500 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 29-bridge count understates how much of the daily burden sits on a single crossing.
Share is of the 14,055 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.
When Las Animas County's bridges were built
207 bridges with a recorded construction year, grouped by decade
- 1910s 1
1910–1919
1 bridges
- 1920s 6
1920–1929
6 bridges
- 1930s
1930–1939
44 bridges
- 1940s 13
1940–1949
13 bridges
- 1950s
1950–1959
23 bridges
- 1960s
1960–1969
34 bridges
- 1970s 10
1970–1979
10 bridges
- 1980s 14
1980–1989
14 bridges
- 1990s
1990–1999
36 bridges
- 2000s 11
2000–2009
11 bridges
- 2010s 12
2010–2019
12 bridges
- 2020s 3
2020–2029
3 bridges
What this shows Construction peaked in the 1930s, when 44 of the county's bridges still in the inventory were built, which is 21.3% of those with a recorded year. That cohort is now 85 to 94 years old in the 2024 inventory. Its average build year is 1968, 14 years older than the Colorado average of 1982.
How Las Animas County compares with Colorado's closest counties by inventory size
The 5 Colorado counties nearest Las Animas County in number of bridges, with their condition splits. Its 14% Poor share is the 6th-lowest of these 6. Its average build year of 1968 against a peer-group mean of 1981 is 13 years older.
Showing the 5 closest of 63 Colorado counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Las Animas County (this page) | 207 | 26.1% | 59.9% | 14% | 1968 |
| Otero County | 195 | 24.6% | 65.1% | 10.3% | 1973 |
| Morgan County | 192 | 47.9% | 49.5% | 2.6% | 1986 |
| Logan County | 182 | 36.8% | 54.4% | 8.8% | 1984 |
| Eagle County | 174 | 39.7% | 55.2% | 5.2% | 1984 |
| Garfield County | 167 | 34.7% | 64.1% | 1.2% | 1980 |
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 Las Animas 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 Las Animas County, both outside Colorado so the neighborhoods are not the same-state size table above.
Similar inventory size
Nearest county inventories outside CO (207 bridges here).
- Marin County, CA · 207 bridges
- Shelby County, IA · 207 bridges
- Washington County, IA · 207 bridges
- Richland County, LA · 207 bridges
Similar average build year
Nearest mean year-built outside CO (1968 here).
- Montgomery County, PA · avg 1968 · 828 bridges
- San Joaquin County, CA · avg 1968 · 644 bridges
- Providence County, RI · avg 1968 · 476 bridges
- Imperial County, CA · avg 1968 · 444 bridges
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
Good-condition bridges (54)
COUNTY RD 79.0
GoodOver: TRIB. OF SALADO CREEK
2.8 MI N OF CR 64.8, Las Animas, CO
Built 1997 Load: 78.9 t ADT: 2
US 350 ML
GoodOver: DRAW
8.5 MI NE OF JCT US 160, Las Animas, CO
Built 2013 Load: 90.4 t ADT: 710
COUNTY RD 31.9
GoodOver: WET CANYON CREEK
5.7 MI N OF SH 12, Las Animas, CO
Built 1997 Load: 99.9 t ADT: 77
CO RD 73.2/DIAZ ST
GoodOver: ENGLEVILLE CANYON CREEK
.1 MI W SH 160, Las Animas, CO
Built 1994 Load: 99.9 t ADT: 34
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.