US Bridges

Susana ST over Arroyo Del Hambre

Fair

Contra Costa County, California · At Estudillo ST · Structure no. 28C0369

Built
1987
38 years old
Condition
Fair
inspected February 2025
Type
Slab
Concrete
Length
36 ft
1 main span
Daily traffic
1,876
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Susana ST over Arroyo Del Hambre is a concrete slab carrying Susana ST over Arroyo Del Hambre in Contra Costa County, California. It was built in 1987, so it is 38 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 1,876 vehicles a day, roughly 2% of them trucks, projected to reach 3,438 by 2047. The structure is 36 ft (11.1 m) long and 48 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSusana ST
CrossesArroyo Del Hambre
LocationAt Estudillo ST
RouteCity Street 0
CountyContra Costa County
StateCalifornia
Coordinates38.01421, -122.13301
Functional classUrban Collector

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to 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 alignment6: Equal to present minimum criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length36 ft (11.1 m)
Longest span34 ft (10.4 m)
Deck width48 ft (14.6 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,876 (2020)
Projected traffic3,438 by 2047
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 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 Susana ST over Arroyo Del Hambre built?

It was built in 1987, making it 38 years old in 2025.

What condition is Susana ST over Arroyo Del Hambre 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 February 2025.

How much traffic does Susana ST over Arroyo Del Hambre carry?

About 1,876 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Susana ST over Arroyo Del Hambre?

The structure is 36 ft (11.1 m) long with a longest span of 34 ft (10.4 m) and a deck 48 ft wide.

Who owns Susana ST over Arroyo Del Hambre?

It is owned by the City or Municipal Highway Agency.