Henderson Road over Brantner Ditch
Adams County, Colorado · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Henderson Road over Brantner Ditch in Adams County, Colorado, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1940 and reconstructed in 1970, making it 85 years old at the 2025 inventory.
- It carries about 10,583 vehicles a day (traffic count year 2021).
- Its listed owner is the county highway agency.
- It is one of 271 of the 544 inventoried bridges in Adams County rated fair (49.8%); 41 (7.5%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated December 2023, on a 24-month routine inspection cycle.
- A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.
View this bridge on a map → (39.92506, -104.88278)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 5 | 5 | Fair condition |
| Superstructure | 5 | 5 | Fair condition |
| Substructure | 6 | 6 | Satisfactory condition |
Bridge details
| Structure | Concrete slab |
| Length | about 22 ft |
| Location | 0.1 M E of Riverdale Rd |
| NBI structure number | BRI102-124 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | December 2023 |
| Inspection interval (item 91) | 24 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 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.