US Bridges

BART Access Road over E4-BAILEY RD Off Ramp

Fair

Contra Costa County, California · 04-CC-004-R19.98 · Structure no. 28 0320S

Built
1997
28 years old
Condition
Fair
inspected May 2023
Type
Slab
Concrete
Length
42 ft
1 main span
Daily traffic
12,000
2017 count
Owner
State
State Highway Agency

About this bridge

BART Access Road over E4-BAILEY RD Off Ramp is a concrete slab carrying BART Access Road over E4-BAILEY RD Off Ramp in Contra Costa 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 12,000 vehicles a day, roughly 1% of them trucks, projected to reach 21,239 by 2045. The structure is 42 ft (12.9 m) long and 67 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesBART Access Road
CrossesE4-BAILEY RD Off Ramp
Location04-CC-004-R19.98
RouteCity Street 0
CountyContra Costa County
StateCalifornia
Coordinates38.01824, -121.94466
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
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.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length42 ft (12.9 m)
Longest span39 ft (12 m)
Deck width67 ft (20.5 m)
Roadway width56 ft (17.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,000 (2017)
Projected traffic21,239 by 2045
Trucks1%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

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 BART Access Road over E4-BAILEY RD Off Ramp built?

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

What condition is BART Access Road over E4-BAILEY RD Off Ramp 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 May 2023.

How much traffic does BART Access Road over E4-BAILEY RD Off Ramp carry?

About 12,000 vehicles per day (2017 count), of which roughly 1% are trucks.

How long is BART Access Road over E4-BAILEY RD Off Ramp?

The structure is 42 ft (12.9 m) long with a longest span of 39 ft (12 m) and a deck 67 ft wide.

Who owns BART Access Road over E4-BAILEY RD Off Ramp?

It is owned by the State Highway Agency.