US Bridges

Richmond Parkway over San Pablo Creek

Fair

Contra Costa County, California · At Parr Blvd · Structure no. 28C0460

Built
1989
36 years old, rebuilt 1994
Condition
Fair
inspected September 2024
Type
Slab
Concrete Continuous
Length
105 ft
3 main spans
Daily traffic
32,244
2015 count
Owner
County
County Highway Agency

About this bridge

Richmond Parkway over San Pablo Creek is a concrete continuous slab carrying Richmond Parkway over San Pablo Creek in Contra Costa County, California. It was built in 1989 and reconstructed in 1994, so it is 36 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 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 32,244 vehicles a day, roughly 5% of them trucks, projected to reach 31,641 by 2044. The structure is 105 ft (31.9 m) long and 131 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesRichmond Parkway
CrossesSan Pablo Creek
LocationAt Parr Blvd
RouteCounty Highway 0
Coordinates37.96655, -122.37356
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal 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 Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length105 ft (31.9 m)
Longest span35 ft (10.7 m)
Deck width131 ft (39.8 m)
Roadway width121 ft (36.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic32,244 (2015)
Projected traffic31,641 by 2044
Trucks5%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Richmond Parkway over San Pablo Creek built?

It was built in 1989, making it 36 years old in 2025. It was reconstructed in 1994.

What condition is Richmond Parkway over San Pablo Creek 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 September 2024.

How much traffic does Richmond Parkway over San Pablo Creek carry?

About 32,244 vehicles per day (2015 count), of which roughly 5% are trucks.

How long is Richmond Parkway over San Pablo Creek?

The structure is 105 ft (31.9 m) long with a longest span of 35 ft (10.7 m) and a deck 131 ft wide.

Who owns Richmond Parkway over San Pablo Creek?

It is owned by the County Highway Agency.