Hilborn Road over Putah South Canal
FairSolano County, California · 1/2 MI N Waterman Bl · Structure no. 23C0227
- Built
- 1978
- 47 years old, rebuilt 2000
- Condition
- Fair
- inspected December 2023
- Type
- Tee Beam
- Concrete Continuous
- Length
- 107 ft
- 3 main spans
- Daily traffic
- 6,546
- 2007 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Hilborn Road over Putah South Canal is a concrete continuous tee beam carrying Hilborn Road over Putah South Canal in Solano County, California. It was built in 1978 and reconstructed in 2000, so it is 47 years old, younger than the California average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 6,546 vehicles a day, roughly 3% of them trucks, projected to reach 17,496 by 2043. The structure is 107 ft (32.6 m) long and 78 ft wide.
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Hilborn Road over Putah South Canal built?
It was built in 1978, making it 47 years old in 2025. It was reconstructed in 2000.
What condition is Hilborn Road over Putah South Canal in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in December 2023.
How much traffic does Hilborn Road over Putah South Canal carry?
About 6,546 vehicles per day (2007 count), of which roughly 3% are trucks.
How long is Hilborn Road over Putah South Canal?
The structure is 107 ft (32.6 m) long with a longest span of 40 ft (12.2 m) and a deck 78 ft wide.
Who owns Hilborn Road over Putah South Canal?
It is owned by the City or Municipal Highway Agency.