US Bridges

3rd AVE-N101 on Rp over San Mateo Creek

Good

San Mateo County, California · 04-SM-101-13.44-SM · Structure no. 35 0010S

Built
2004
21 years old
Condition
Good
inspected August 2023
Type
Slab
Concrete Continuous
Length
68 ft
3 main spans
Daily traffic
15,000
2005 count
Owner
State
State Highway Agency

About this bridge

3rd AVE-N101 on Rp over San Mateo Creek is a concrete continuous slab carrying 3rd AVE-N101 on Rp over San Mateo Creek in San Mateo County, California. It was built in 2004, so it is 21 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 15,000 vehicles a day, roughly 2% of them trucks, projected to reach 32,603 by 2045. The structure is 68 ft (20.8 m) long and 33 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
Carries3rd AVE-N101 on Rp
CrossesSan Mateo Creek
Location04-SM-101-13.44-SM
RouteState Highway 101
CountySan Mateo County
StateCalifornia
Coordinates37.57116, -122.31277
Functional classUrban Principal Arterial - Other Freeway or Expressway

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 inspectionAugust 2023
Inspection intervalevery 48 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 alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length68 ft (20.8 m)
Longest span28 ft (8.6 m)
Deck width33 ft (10 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,000 (2005)
Projected traffic32,603 by 2045
Trucks2%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 3rd AVE-N101 on Rp over San Mateo Creek built?

It was built in 2004, making it 21 years old in 2025.

What condition is 3rd AVE-N101 on Rp over San Mateo 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 August 2023.

How much traffic does 3rd AVE-N101 on Rp over San Mateo Creek carry?

About 15,000 vehicles per day (2005 count), of which roughly 2% are trucks.

How long is 3rd AVE-N101 on Rp over San Mateo Creek?

The structure is 68 ft (20.8 m) long with a longest span of 28 ft (8.6 m) and a deck 33 ft wide.

Who owns 3rd AVE-N101 on Rp over San Mateo Creek?

It is owned by the State Highway Agency.