US Bridges

Pacheco Blvd over Grayson Creek

Fair

Contra Costa County, California · 0.2 MI N Center Ave · Structure no. 28C0085

Built
1975
50 years old
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
143 ft
3 main spans
Daily traffic
17,285
2013 count
Owner
County
County Highway Agency

About this bridge

Pacheco Blvd over Grayson Creek is a prestressed concrete continuous stringer/multi-beam or girder carrying Pacheco Blvd over Grayson Creek in Contra Costa County, California. It was built in 1975, so it is 50 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 17,285 vehicles a day, roughly 5% of them trucks, projected to reach 17,562 by 2046. The structure is 143 ft (43.7 m) long and 94 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesPacheco Blvd
CrossesGrayson Creek
Location0.2 MI N Center Ave
RouteCounty Highway 0
CountyContra Costa County
StateCalifornia
Coordinates37.9868, -122.06993
Functional classUrban Minor Arterial

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.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating46.1 US tons
Inventory rating32.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length143 ft (43.7 m)
Longest span48 ft (14.7 m)
Deck width94 ft (28.7 m)
Roadway width72 ft (21.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,285 (2013)
Projected traffic17,562 by 2046
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Pacheco Blvd over Grayson Creek built?

It was built in 1975, making it 50 years old in 2025.

What condition is Pacheco Blvd over Grayson 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 November 2024.

How much traffic does Pacheco Blvd over Grayson Creek carry?

About 17,285 vehicles per day (2013 count), of which roughly 5% are trucks.

How long is Pacheco Blvd over Grayson Creek?

The structure is 143 ft (43.7 m) long with a longest span of 48 ft (14.7 m) and a deck 94 ft wide.

Who owns Pacheco Blvd over Grayson Creek?

It is owned by the County Highway Agency.