US Bridges

Arroyo Vista over Arroyo Seco

Fair

Alameda County, California · 500 W Las Positas RD · Structure no. 33C0383

Built
1985
40 years old
Condition
Fair
inspected November 2023
Type
Culvert
Concrete Continuous
Length
60 ft
4 main spans
Daily traffic
1,000
1990 count
Owner
City
City or Municipal Highway Agency

About this bridge

Arroyo Vista over Arroyo Seco is a concrete continuous culvert carrying Arroyo Vista over Arroyo Seco 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 6 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 1,000 vehicles a day, roughly 10% of them trucks, projected to reach 2,471 by 2045. The structure is 60 ft (18.3 m) long and 60 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesArroyo Vista
CrossesArroyo Seco
Location500 W Las Positas RD
RouteCity Street 0
CountyAlameda County
StateCalifornia
Coordinates37.69853, -121.74001
Functional classUrban 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
Channel and channel protection9 ExcellentNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length60 ft (18.3 m)
Longest span15 ft (4.6 m)
Deck width60 ft (18.3 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,000 (1990)
Projected traffic2,471 by 2045
Trucks10%
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 Arroyo Vista over Arroyo Seco built?

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

What condition is Arroyo Vista over Arroyo Seco 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 Arroyo Vista over Arroyo Seco carry?

About 1,000 vehicles per day (1990 count), of which roughly 10% are trucks.

How long is Arroyo Vista over Arroyo Seco?

The structure is 60 ft (18.3 m) long with a longest span of 15 ft (4.6 m) and a deck 60 ft wide.

Who owns Arroyo Vista over Arroyo Seco?

It is owned by the City or Municipal Highway Agency.