US Bridges

Kilkare RD over Sinbad Creek

Fair

Alameda County, California · 0.25 MI NW of Foothill RD · Structure no. 33C0007

Built
1985
40 years old
Condition
Fair
inspected November 2023
Type
Slab
Prestressed Concrete
Length
37 ft
1 main span
Daily traffic
1,100
2014 count
Owner
County
County Highway Agency

About this bridge

Kilkare RD over Sinbad Creek is a prestressed concrete slab carrying Kilkare RD over Sinbad Creek in Alameda County, California. It was built in 1985, so it is 40 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 1,100 vehicles a day, roughly 5% of them trucks, projected to reach 394 by 2043. The structure is 37 ft (11.3 m) long and 32 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

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CarriesKilkare RD
CrossesSinbad Creek
Location0.25 MI NW of Foothill RD
RouteCounty Highway 0
CountyAlameda County
StateCalifornia
Coordinates37.59693, -121.89037
Functional classRural Local

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 protection8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating36.8 US tons
Inventory rating25.4 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length37 ft (11.3 m)
Longest span34 ft (10.5 m)
Deck width32 ft (9.8 m)
Roadway width31 ft (9.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,100 (2014)
Projected traffic394 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 Kilkare RD over Sinbad Creek built?

It was built in 1985, making it 40 years old in 2025.

What condition is Kilkare RD over Sinbad 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 Kilkare RD over Sinbad Creek carry?

About 1,100 vehicles per day (2014 count), of which roughly 5% are trucks.

How long is Kilkare RD over Sinbad Creek?

The structure is 37 ft (11.3 m) long with a longest span of 34 ft (10.5 m) and a deck 32 ft wide.

Who owns Kilkare RD over Sinbad Creek?

It is owned by the County Highway Agency.