US Bridges

Verdi Road over Purisma Creek

Good

San Mateo County, California · 0.1 MI S Purisma Crk RD · Structure no. 35C0024

Built
1987
38 years old
Condition
Good
inspected May 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
152 ft
1 main span
Daily traffic
63
2019 count
Owner
County
County Highway Agency

About this bridge

Verdi Road over Purisma Creek is a prestressed concrete box beam or girders - multiple carrying Verdi Road over Purisma Creek in San Mateo County, California. It was built in 1987, so it is 38 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 63 vehicles a day, roughly 6% of them trucks, projected to reach 128 by 2040. The structure is 152 ft (46.3 m) long and 28 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesVerdi Road
CrossesPurisma Creek
Location0.1 MI S Purisma Crk RD
RouteCounty Highway 0
Coordinates37.40232, -122.41264
Functional classRural 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 protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating101.1 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length152 ft (46.3 m)
Longest span152 ft (46.3 m)
Deck width28 ft (8.4 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic63 (2019)
Projected traffic128 by 2040
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Verdi Road over Purisma Creek built?

It was built in 1987, making it 38 years old in 2025.

What condition is Verdi Road over Purisma Creek 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 May 2023.

How much traffic does Verdi Road over Purisma Creek carry?

About 63 vehicles per day (2019 count), of which roughly 6% are trucks.

How long is Verdi Road over Purisma Creek?

The structure is 152 ft (46.3 m) long with a longest span of 152 ft (46.3 m) and a deck 28 ft wide.

Who owns Verdi Road over Purisma Creek?

It is owned by the County Highway Agency.