US Bridges

N238-W580 Connectr over Castro Valley Blvd

Poor

Alameda County, California · 04-ALA-238-R14.47 · Structure no. 33 0432G

Built
1988
37 years old
Condition
Poor
inspected February 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
181 ft
2 main spans
Daily traffic
23,200
2003 count
Owner
State
State Highway Agency

About this bridge

N238-W580 Connectr over Castro Valley Blvd is a concrete continuous box beam or girders - multiple carrying N238-W580 Connectr over Castro Valley Blvd in Alameda County, California. It was built in 1988, so it is 37 years old, younger than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 23,200 vehicles a day, roughly 11% of them trucks, projected to reach 27,351 by 2042. The structure is 181 ft (55.2 m) long and 54 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesN238-W580 Connectr
CrossesCastro Valley Blvd
Location04-ALA-238-R14.47
RouteState Highway 238
Coordinates37.68841, -122.09528
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length181 ft (55.2 m)
Longest span92 ft (28 m)
Deck width54 ft (16.5 m)
Roadway width51 ft (15.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23,200 (2003)
Projected traffic27,351 by 2042
Trucks11%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was N238-W580 Connectr over Castro Valley Blvd built?

It was built in 1988, making it 37 years old in 2025.

What condition is N238-W580 Connectr over Castro Valley Blvd in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in February 2024.

How much traffic does N238-W580 Connectr over Castro Valley Blvd carry?

About 23,200 vehicles per day (2003 count), of which roughly 11% are trucks.

How long is N238-W580 Connectr over Castro Valley Blvd?

The structure is 181 ft (55.2 m) long with a longest span of 92 ft (28 m) and a deck 54 ft wide.

Who owns N238-W580 Connectr over Castro Valley Blvd?

It is owned by the State Highway Agency.