US Bridges

State Route 238 over Ashland Ave

Fair

Alameda County, California · 04-ALA-238-15.67 · Structure no. 33 0221

Built
1956
69 years old, rebuilt 2010
Condition
Fair
inspected February 2024
Type
Box Beam or Girders - Multiple
Concrete
Length
68 ft
1 main span
Daily traffic
121,000
2014 count
Owner
State
State Highway Agency

About this bridge

State Route 238 over Ashland Ave is a concrete box beam or girders - multiple carrying State Route 238 over Ashland Ave in Alameda County, California. It was built in 1956 and reconstructed in 2010, so it is 69 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 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 121,000 vehicles a day, roughly 10% of them trucks, projected to reach 226,593 by 2042. The structure is 68 ft (20.8 m) long and 115 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesState Route 238
CrossesAshland Ave
Location04-ALA-238-15.67
RouteState Highway 238
CountyAlameda County
StateCalifornia
Coordinates37.68964, -122.11879
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating95.7 US tons
Inventory rating57.4 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length68 ft (20.8 m)
Longest span66 ft (20.1 m)
Deck width115 ft (35 m)
Roadway width110 ft (33.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic121,000 (2014)
Projected traffic226,593 by 2042
Trucks10%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 State Route 238 over Ashland Ave built?

It was built in 1956, making it 69 years old in 2025. It was reconstructed in 2010.

What condition is State Route 238 over Ashland Ave 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 February 2024.

How much traffic does State Route 238 over Ashland Ave carry?

About 121,000 vehicles per day (2014 count), of which roughly 10% are trucks.

How long is State Route 238 over Ashland Ave?

The structure is 68 ft (20.8 m) long with a longest span of 66 ft (20.1 m) and a deck 115 ft wide.

Who owns State Route 238 over Ashland Ave?

It is owned by the State Highway Agency.