Bull Lake Road over Bull Lake Dam Spillway
Fremont County, Wyoming · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Bull Lake Road over Bull Lake Dam Spillway in Fremont County, Wyoming, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the superstructure, rated 4 (poor condition) on the 0-9 scale.
- It was built in 1938, making it 87 years old at the 2025 inventory.
- It carries about 5 vehicles a day (traffic count year 2011).
- It is one of 11 of the 176 inventoried bridges in Fremont County rated poor (6.2%); 11 (6.2%) are rated poor.
- Its traffic status in the 2025 inventory is closed to all traffic (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated August 2017, on a 24-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 → (43.21023, -109.0424)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 5 | 5 | Fair condition |
| Superstructure | 4 | 4 | Poor condition |
| Substructure | 4 | 4 | Poor condition |
Bridge details
| Structure | Steel through truss |
| Length | about 104 ft |
| Location | 36 mi W-NW of Riverton |
| NBI structure number | WYA-RU-001 |
| Condition class | Poor |
| Traffic status (item 41) | Closed to all traffic |
| Last inspection (item 90) | August 2017 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 6: scour evaluation not yet made |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Wyoming department of transportation.
Busiest bridges in Fremont County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 287 over M Fork Popo Agie River | 1978 | 17,932 | Fair |
| US 26 over Wyo Central Canal No 2 | 1957 | 13,777 | Fair |
| Wyo 789 over Wind River | 1968 | 13,259 | Fair |
| US 287 over Squaw Creek | 1961 | 10,272 | Fair |
| US 287 over Baldwin Creek | 1961 | 10,272 | Good |
| US 26 over Madden Draw | 1989 | 7,727 | Good |
All bridges nearby: Fremont County, WY bridge conditions · every bridge in Fremont County · Wyoming bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.