County Rd 105.5 over Thompson Creek
Las Animas County, Colorado · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- County Rd 105.5 over Thompson Creek in Las Animas County, Colorado, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 4 (poor condition) on the 0-9 scale.
- It was built in 1930, making it 95 years old at the 2025 inventory.
- It carries about 13 vehicles a day (traffic count year 2022).
- Its listed owner is the county highway agency.
- It is one of 30 of the 205 inventoried bridges in Las Animas County rated poor (14.6%); 30 (14.6%) are rated poor.
- Its traffic status in the 2025 inventory is open, posting recommended but not legally implemented (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated June 2023, on a 24-month routine inspection cycle.
- It has fracture-critical members (NBI item 92A): steel tension members without a redundant load path, which get their own scheduled inspections.
- A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.
View this bridge on a map → (37.10788, -104.25116)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 8 | 8 | Very good condition |
| Superstructure | 6 | 6 | Satisfactory condition |
| Substructure | 4 | 4 | Poor condition |
Bridge details
| Structure | Steel through truss |
| Length | about 51 ft |
| Location | 1.1 Mi SE of CR 12.5 |
| NBI structure number | LA105.5-50-8-84 |
| Condition class | Poor |
| Traffic status (item 41) | Open, posting recommended but not legally implemented |
| Last inspection (item 90) | June 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 5: foundations stable, scour within the limits of the footing or piles |
| Fracture critical (item 92A) | Yes |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Colorado department of transportation.
Busiest bridges in Las Animas County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| County Road 20.8 over I 25 Ml | 1959 | 16,000 | Fair |
| I 25 Ramp over SB Onramp Frm Comm. St. | 2011 | 16,000 | Good |
| I 25 Nbnd Off Ramp over North Commercial Street | 2010 | 16,000 | Good |
| I 25 Ml over Arroyo | 1951 | 16,000 | Fair |
| I 25 Ml over Draw | 1969 | 12,000 | Fair |
| County Road 18.9 over I 25 Ml | 2022 | 12,000 | Good |
All bridges nearby: Las Animas County, CO bridge conditions · every bridge in Las Animas County · Colorado bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.