US Bridges

Laurel Road over Rr/Neroly Road

Fair

Contra Costa County, California · 0.2MI NE JCT SR-4 · Structure no. 28C0268

Built
2010
15 years old
Condition
Fair
inspected January 2025
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
338 ft
2 main spans
Daily traffic
4,200
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Laurel Road over Rr/Neroly Road is a prestressed concrete continuous box beam or girders - multiple carrying Laurel Road over Rr/Neroly Road in Contra Costa County, California. It was built in 2010, so it is 15 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 4,200 vehicles a day, roughly 5% of them trucks, projected to reach 2,867 by 2047. The structure is 338 ft (103 m) long and 115 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesLaurel Road
CrossesRr/Neroly Road
Location0.2MI NE JCT SR-4
RouteCity Street 0
CountyContra Costa County
StateCalifornia
Coordinates37.9806, -121.74123
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: 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 typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length338 ft (103 m)
Longest span169 ft (51.4 m)
Deck width115 ft (34.9 m)
Roadway width99 ft (30.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,200 (2020)
Projected traffic2,867 by 2047
Trucks5%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway and railroad
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Laurel Road over Rr/Neroly Road built?

It was built in 2010, making it 15 years old in 2025.

What condition is Laurel Road over Rr/Neroly Road 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 January 2025.

How much traffic does Laurel Road over Rr/Neroly Road carry?

About 4,200 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is Laurel Road over Rr/Neroly Road?

The structure is 338 ft (103 m) long with a longest span of 169 ft (51.4 m) and a deck 115 ft wide.

Who owns Laurel Road over Rr/Neroly Road?

It is owned by the City or Municipal Highway Agency.