US Bridges

Santa Maria DR over Alameda Creek

Fair

Alameda County, California · S/O Alvarado Niles Road · Structure no. 33C0142

Built
1965
60 years old
Condition
Fair
inspected September 2024
Type
Culvert
Concrete Continuous
Length
25 ft
2 main spans
Daily traffic
3,545
2010 count
Owner
City
City or Municipal Highway Agency

About this bridge

Santa Maria DR over Alameda Creek is a concrete continuous culvert carrying Santa Maria DR over Alameda Creek in Alameda County, California. It was built in 1965, so it is 60 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 3,545 vehicles a day, roughly 2% of them trucks, projected to reach 14,570 by 2046. The structure is 25 ft (7.6 m) long and 69 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesSanta Maria DR
CrossesAlameda Creek
LocationS/O Alvarado Niles Road
RouteCity Street 0
CountyAlameda County
StateCalifornia
Coordinates37.59772, -122.06627
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
Channel and channel protection7 GoodSome minor problems.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2024
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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating44.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadUnknown
Structure length25 ft (7.6 m)
Longest span11 ft (3.4 m)
Deck width69 ft (20.9 m)
Roadway width51 ft (15.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,545 (2010)
Projected traffic14,570 by 2046
Trucks2%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 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 Santa Maria DR over Alameda Creek built?

It was built in 1965, making it 60 years old in 2025.

What condition is Santa Maria DR over Alameda 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 September 2024.

How much traffic does Santa Maria DR over Alameda Creek carry?

About 3,545 vehicles per day (2010 count), of which roughly 2% are trucks.

How long is Santa Maria DR over Alameda Creek?

The structure is 25 ft (7.6 m) long with a longest span of 11 ft (3.4 m) and a deck 69 ft wide.

Who owns Santa Maria DR over Alameda Creek?

It is owned by the City or Municipal Highway Agency.