US Bridges

Drake Ave over Easton Creek

Fair

San Mateo County, California · East of Easton Drive · Structure no. 35C0146

Built
1930
95 years old
Condition
Fair
inspected May 2023
Type
Tee Beam
Concrete Continuous
Length
20 ft
1 main span
Daily traffic
100
2019 count
Owner
City
City or Municipal Highway Agency

About this bridge

Drake Ave over Easton Creek is a concrete continuous tee beam carrying Drake Ave over Easton Creek in San Mateo County, California. It was built in 1930, so it is 95 years old, older 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 100 vehicles a day, roughly 10% of them trucks, projected to reach 217 by 2041. The structure is 20 ft (6.2 m) long and 50 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesDrake Ave
CrossesEaston Creek
LocationEast of Easton Drive
RouteCity Street 0
CountySan Mateo County
StateCalifornia
Coordinates37.58251, -122.37042
Functional classUrban Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating29.7 US tons
Inventory rating17.9 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length20 ft (6.2 m)
Longest span20 ft (6.1 m)
Deck width50 ft (15.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2019)
Projected traffic217 by 2041
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Drake Ave over Easton Creek built?

It was built in 1930, making it 95 years old in 2025.

What condition is Drake Ave over Easton 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 May 2023.

How much traffic does Drake Ave over Easton Creek carry?

About 100 vehicles per day (2019 count), of which roughly 10% are trucks.

How long is Drake Ave over Easton Creek?

The structure is 20 ft (6.2 m) long with a longest span of 20 ft (6.1 m) and a deck 50 ft wide.

Who owns Drake Ave over Easton Creek?

It is owned by the City or Municipal Highway Agency.