US Bridges

Hegenberger RD EB over Arroyo Viejo

Fair

Alameda County, California · Btwn SR 185 & Hamilton · Structure no. 33C0167

Built
1950
75 years old, rebuilt 1966
Condition
Fair
inspected November 2024
Type
Culvert
Concrete Continuous
Length
32 ft
2 main spans
Daily traffic
46,294
2005 count
Owner
City
City or Municipal Highway Agency

About this bridge

Hegenberger RD EB over Arroyo Viejo is a concrete continuous culvert carrying Hegenberger RD EB over Arroyo Viejo in Alameda County, California. It was built in 1950 and reconstructed in 1966, so it is 75 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 46,294 vehicles a day, roughly 2% of them trucks, projected to reach 38,290 by 2042. The structure is 32 ft (9.8 m) long. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesHegenberger RD EB
CrossesArroyo Viejo
LocationBtwn SR 185 & Hamilton
RouteCity Street 0
CountyAlameda County
StateCalifornia
Coordinates37.75741, -122.18851
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 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
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadUnknown
Structure length32 ft (9.8 m)
Longest span15 ft (4.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic46,294 (2005)
Projected traffic38,290 by 2042
Trucks2%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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 Hegenberger RD EB over Arroyo Viejo built?

It was built in 1950, making it 75 years old in 2025. It was reconstructed in 1966.

What condition is Hegenberger RD EB over Arroyo Viejo 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 2024.

How much traffic does Hegenberger RD EB over Arroyo Viejo carry?

About 46,294 vehicles per day (2005 count), of which roughly 2% are trucks.

How long is Hegenberger RD EB over Arroyo Viejo?

The structure is 32 ft (9.8 m) long with a longest span of 15 ft (4.6 m).

Who owns Hegenberger RD EB over Arroyo Viejo?

It is owned by the City or Municipal Highway Agency.