US Bridges

Via Dora Drive over Contra Costa Canal

Good

Contra Costa County, California · At Hillcrest Avenue · Structure no. 28C0444

Built
1984
41 years old
Condition
Good
inspected January 2025
Type
Slab
Prestressed Concrete
Length
34 ft
1 main span
Daily traffic
1,500
1998 count
Owner
City
City or Municipal Highway Agency

About this bridge

Via Dora Drive over Contra Costa Canal is a prestressed concrete slab carrying Via Dora Drive over Contra Costa Canal in Contra Costa County, California. It was built in 1984, so it is 41 years old, younger than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,500 vehicles a day, roughly 1% of them trucks, projected to reach 2,744 by 2043. The structure is 34 ft (10.4 m) long and 54 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

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CarriesVia Dora Drive
CrossesContra Costa Canal
LocationAt Hillcrest Avenue
RouteCity Street 0
CountyContra Costa County
StateCalifornia
Coordinates37.98288, -121.77318
Functional classUrban Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2025
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: 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
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length34 ft (10.4 m)
Longest span34 ft (10.4 m)
Deck width54 ft (16.5 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,500 (1998)
Projected traffic2,744 by 2043
Trucks1%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Via Dora Drive over Contra Costa Canal built?

It was built in 1984, making it 41 years old in 2025.

What condition is Via Dora Drive over Contra Costa Canal in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in January 2025.

How much traffic does Via Dora Drive over Contra Costa Canal carry?

About 1,500 vehicles per day (1998 count), of which roughly 1% are trucks.

How long is Via Dora Drive over Contra Costa Canal?

The structure is 34 ft (10.4 m) long with a longest span of 34 ft (10.4 m) and a deck 54 ft wide.

Who owns Via Dora Drive over Contra Costa Canal?

It is owned by the City or Municipal Highway Agency.