US Bridges

Radio Station Road over Bay Wetlands

Fair

Alameda County, California · 04-ALA-080-2.36-OAK · Structure no. 33 0638

Built
1997
28 years old
Condition
Fair
inspected March 2023
Type
Slab
Concrete Continuous
Length
148 ft
4 main spans
Daily traffic
1,000
2019 count
Owner
State
State Highway Agency

About this bridge

Radio Station Road over Bay Wetlands is a concrete continuous slab carrying Radio Station Road over Bay Wetlands in Alameda County, California. It was built in 1997, so it is 28 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 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 1,000 vehicles a day, roughly 2% of them trucks, projected to reach 1,491 by 2043. The structure is 148 ft (45 m) long and 28 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesRadio Station Road
CrossesBay Wetlands
Location04-ALA-080-2.36-OAK
RouteInterstate 80
CountyAlameda County
StateCalifornia
Coordinates37.82596, -122.30795
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionMarch 2023
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 geometry2: Basically intolerable, requiring high priority of replacement
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 typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length148 ft (45 m)
Longest span42 ft (12.9 m)
Deck width28 ft (8.4 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deck24 ft (7.4 m)

Traffic and service

Average daily traffic1,000 (2019)
Projected traffic1,491 by 2043
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Radio Station Road over Bay Wetlands built?

It was built in 1997, making it 28 years old in 2025.

What condition is Radio Station Road over Bay Wetlands 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 March 2023.

How much traffic does Radio Station Road over Bay Wetlands carry?

About 1,000 vehicles per day (2019 count), of which roughly 2% are trucks.

How long is Radio Station Road over Bay Wetlands?

The structure is 148 ft (45 m) long with a longest span of 42 ft (12.9 m) and a deck 28 ft wide.

Who owns Radio Station Road over Bay Wetlands?

It is owned by the State Highway Agency.