US Bridges

Service Road over Guadalupe Channel

Good

San Mateo County, California · Bayshore Blvd @ Old Cnty · Structure no. 35C0189

Built
2007
18 years old
Condition
Good
inspected April 2023
Type
Slab
Prestressed Concrete
Length
62 ft
1 main span
Daily traffic
4,646
2014 count
Owner
City
City or Municipal Highway Agency

About this bridge

Service Road over Guadalupe Channel is a prestressed concrete slab carrying Service Road over Guadalupe Channel in San Mateo County, California. It was built in 2007, so it is 18 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 4,646 vehicles a day, roughly 15% of them trucks, projected to reach 2,323 by 2041. The structure is 62 ft (18.8 m) long and 24 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesService Road
CrossesGuadalupe Channel
LocationBayshore Blvd @ Old Cnty
RouteCity Street 0
CountySan Mateo County
StateCalifornia
Coordinates37.68689, -122.39898
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 protection9 ExcellentNo problems noted.
Last inspectionApril 2023
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 geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length62 ft (18.8 m)
Longest span60 ft (18.2 m)
Deck width24 ft (7.3 m)
Roadway width21 ft (6.3 m)
Vertical clearance over deck14 ft (4.3 m)

Traffic and service

Average daily traffic4,646 (2014)
Projected traffic2,323 by 2041
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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 Service Road over Guadalupe Channel built?

It was built in 2007, making it 18 years old in 2025.

What condition is Service Road over Guadalupe Channel 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 April 2023.

How much traffic does Service Road over Guadalupe Channel carry?

About 4,646 vehicles per day (2014 count), of which roughly 15% are trucks.

How long is Service Road over Guadalupe Channel?

The structure is 62 ft (18.8 m) long with a longest span of 60 ft (18.2 m) and a deck 24 ft wide.

Who owns Service Road over Guadalupe Channel?

It is owned by the City or Municipal Highway Agency.