I 76 Service Rd over Lost Creek SR
Weld County, Colorado · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- I 76 Service Rd over Lost Creek SR in Weld County, Colorado, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the superstructure, rated 3 (serious condition) on the 0-9 scale.
- It was built in 1936, making it 89 years old at the 2025 inventory.
- It carries about 135 vehicles a day (traffic count year 2023).
- Its listed owner is the state highway agency.
- It is one of 21 of the 608 inventoried bridges in Weld County rated poor (3.5%); 21 (3.5%) are rated poor.
- Its traffic status in the 2025 inventory is open, would be posted or closed except for temporary shoring or other temporary measures (NBI item 41).
- Its class is unchanged from 2024 (poor), but component ratings moved: superstructure 4 to 3, substructure 5 to 4.
- Its most recent inspection on record is dated February 2025, on a 12-month routine inspection cycle.
- 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 → (40.1687, -104.35702)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 5 | 5 | Fair condition |
| Superstructure | 4 | 3 | Serious condition |
| Substructure | 5 | 4 | Poor condition |
Bridge details
| Structure | Timber stringer or multi-beam girder |
| Length | about 114 ft |
| Location | Just E of Roggen |
| NBI structure number | D-19-A |
| Condition class | Poor |
| Traffic status (item 41) | Open, would be posted or closed except for temporary shoring or other temporary measures |
| Last inspection (item 90) | February 2025 |
| Inspection interval (item 91) | 12 months |
| Scour (item 113) | 5: foundations stable, scour within the limits of the footing or piles |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Colorado department of transportation.
Busiest bridges in Weld County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I 25 Ml over Draw | 2004 | 102,000 | Fair |
| I25 Ml over Draw | 2004 | 102,000 | Fair |
| I 25 ML & Ramps over Channel Md-b | 2000 | 91,000 | Good |
| I 25 Ml and Fr Rds over Lower Boulder Ditch | 2000 | 91,000 | Good |
| I 25 Ml Nbnd over SH 60 Ml | 2023 | 86,000 | Good |
| I 25 Ml Sbnd over Weld County Road 46 | 2022 | 83,000 | Good |
All bridges nearby: Weld County, CO bridge conditions · every bridge in Weld County · Colorado bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.