US Bridges

Dobbins ST over Ulatis Creek

Fair

Solano County, California · 0.4 MI N Monte Vista Ave · Structure no. 23C0147

Built
1970
55 years old
Condition
Fair
inspected November 2023
Type
Box Beam or Girders - Multiple
Concrete
Length
98 ft
1 main span
Daily traffic
6,910
2010 count
Owner
City
City or Municipal Highway Agency

About this bridge

Dobbins ST over Ulatis Creek is a concrete box beam or girders - multiple carrying Dobbins ST over Ulatis Creek in Solano County, California. It was built in 1970, so it is 55 years old, older 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 6,910 vehicles a day, roughly 5% of them trucks, projected to reach 8,761 by 2043. The structure is 98 ft (30 m) long and 76 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesDobbins ST
CrossesUlatis Creek
Location0.4 MI N Monte Vista Ave
RouteCity Street 0
CountySolano County
StateCalifornia
Coordinates38.36436, -121.99057
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating46.1 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length98 ft (30 m)
Longest span96 ft (29.3 m)
Deck width76 ft (23.1 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,910 (2010)
Projected traffic8,761 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Dobbins ST over Ulatis Creek built?

It was built in 1970, making it 55 years old in 2025.

What condition is Dobbins ST over Ulatis Creek 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 November 2023.

How much traffic does Dobbins ST over Ulatis Creek carry?

About 6,910 vehicles per day (2010 count), of which roughly 5% are trucks.

How long is Dobbins ST over Ulatis Creek?

The structure is 98 ft (30 m) long with a longest span of 96 ft (29.3 m) and a deck 76 ft wide.

Who owns Dobbins ST over Ulatis Creek?

It is owned by the City or Municipal Highway Agency.