US Bridges

Hawkins Road over Ulatis Creek

Good

Solano County, California · 1.4 MI W of RTE 113 · Structure no. 23C0117

Built
1964
61 years old
Condition
Good
inspected November 2023
Type
Slab
Concrete Continuous
Length
130 ft
4 main spans
Daily traffic
801
2003 count
Owner
County
County Highway Agency

About this bridge

Hawkins Road over Ulatis Creek is a concrete continuous slab carrying Hawkins Road over Ulatis Creek in Solano County, California. It was built in 1964, so it is 61 years old, older than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 801 vehicles a day, roughly 6% of them trucks, projected to reach 436 by 2041. The structure is 130 ft (39.6 m) long and 27 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesHawkins Road
CrossesUlatis Creek
Location1.4 MI W of RTE 113
RouteCounty Highway 0
Coordinates38.35866, -121.84867
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating80.4 US tons
Inventory rating48.2 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadUnknown
Structure length130 ft (39.6 m)
Longest span30 ft (9.1 m)
Deck width27 ft (8.1 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic801 (2003)
Projected traffic436 by 2041
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Hawkins Road over Ulatis Creek built?

It was built in 1964, making it 61 years old in 2025.

What condition is Hawkins Road over Ulatis Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in November 2023.

How much traffic does Hawkins Road over Ulatis Creek carry?

About 801 vehicles per day (2003 count), of which roughly 6% are trucks.

How long is Hawkins Road over Ulatis Creek?

The structure is 130 ft (39.6 m) long with a longest span of 30 ft (9.1 m) and a deck 27 ft wide.

Who owns Hawkins Road over Ulatis Creek?

It is owned by the County Highway Agency.