Boyd Road over East Highline Canal
Imperial County, California · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Boyd Road over East Highline Canal in Imperial County, California, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 4 (poor condition) on the 0-9 scale.
- It was built in 1975, making it 50 years old at the 2025 inventory.
- It carries about 50 vehicles a day (traffic count year 2022).
- Its listed owner is the county highway agency.
- It is one of 35 of the 445 inventoried bridges in Imperial County rated poor (7.9%); 35 (7.9%) are rated poor.
- 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 → (32.90205, -115.29306)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 4 | Poor condition |
| Superstructure | 4 | Poor condition |
| Substructure | 7 | Good condition |
Bridge details
| Structure | Continuous concrete slab |
| Length | about 106 ft |
| Location | 1.1 Mi E/o Highline Rd |
| NBI structure number | 58C0134 |
| Condition class | Poor |
Source: FHWA National Bridge Inventory, 2025 data as reported by the California department of transportation.
Busiest bridges in Imperial County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Border Crossing (c over New River | 2018 | 29,500 | Good |
| State Route 111 over All American Canal | 1938 | 29,000 | Good |
| Imperial Avenue over Interstate 8 | 2022 | 23,361 | Good |
| Interstate 8 over Araz Wash | 1973 | 20,400 | Good |
| State Route 111 SB over Rockwood Canal | 2003 | 17,580 | Good |
| State Route 111 NB over Rockwood Canal | 2003 | 17,580 | Good |
All bridges nearby: Imperial County, CA bridge conditions · every bridge in Imperial County · California bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.