86TH Avenue over Hoffman Ditch
Adams County, Colorado · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- 86TH Avenue over Hoffman Ditch in Adams County, Colorado, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 7 (good condition) on the 0-9 scale.
- It was built in 1990, making it 35 years old at the 2025 inventory.
- It carries about 286 vehicles a day (traffic count year 2021).
- Its listed owner is a city or municipal highway agency.
- It is one of 232 of the 544 inventoried bridges in Adams County rated good (42.6%); 41 (7.5%) are rated poor.
- A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.
View this bridge on a map → (39.85287, -104.93915)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 7 | Good condition |
Bridge details
| Structure | Concrete culvert |
| Length | about 25 ft |
| Location | 0.6 Mi East of Steele St |
| NBI structure number | THN-086CLD-HFD |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Colorado department of transportation.
Busiest bridges in Adams County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Hov Ramp over I25 Access | 1993 | 242,000 | Good |
| I 25 Ramp over Hov Ramp R | 1998 | 242,000 | Good |
| I 25 Ml over 62ND Ave | 1993 | 196,000 | Fair |
| I 25 Ml over UP RR | 1993 | 196,000 | Fair |
| US 36 Ebnd Ml over I 25 Ml Ramps Hov Lanes | 1994 | 168,000 | Good |
| I 25 Ml over Pedestrian Underpass | 1955 | 154,000 | Fair |
All bridges nearby: Adams County, CO bridge conditions · every bridge in Adams County · Colorado bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.