US Bridges

State Route 84 over Pedestrian Walkway

Good

San Mateo County, California · 04-SM-084-R27.62-MLP · Structure no. 35 0291

Built
1983
42 years old, rebuilt 2003
Condition
Good
inspected May 2024
Type
Slab
Concrete
Length
35 ft
1 main span
Daily traffic
27,500
2009 count
Owner
State
State Highway Agency

About this bridge

State Route 84 over Pedestrian Walkway is a concrete slab carrying State Route 84 over Pedestrian Walkway in San Mateo County, California. It was built in 1983 and reconstructed in 2003, so it is 42 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 27,500 vehicles a day, roughly 3% of them trucks, projected to reach 67,500 by 2046. The structure is 35 ft (10.7 m) long and 149 ft wide.

CarriesState Route 84
CrossesPedestrian Walkway
Location04-SM-084-R27.62-MLP
RouteState Highway 84
Coordinates37.48203, -122.15092
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.
Last inspectionMay 2024
Inspection intervalevery 48 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 typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length35 ft (10.7 m)
Longest span32 ft (9.8 m)
Deck width149 ft (45.4 m)
Roadway width134 ft (40.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic27,500 (2009)
Projected traffic67,500 by 2046
Trucks3%
Lanes on structure9
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesPedestrian / bicycle
Detour if closed—
TollOn a free road
National Highway SystemYes

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was State Route 84 over Pedestrian Walkway built?

It was built in 1983, making it 42 years old in 2025. It was reconstructed in 2003.

What condition is State Route 84 over Pedestrian Walkway 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 2024.

How much traffic does State Route 84 over Pedestrian Walkway carry?

About 27,500 vehicles per day (2009 count), of which roughly 3% are trucks.

How long is State Route 84 over Pedestrian Walkway?

The structure is 35 ft (10.7 m) long with a longest span of 32 ft (9.8 m) and a deck 149 ft wide.

Who owns State Route 84 over Pedestrian Walkway?

It is owned by the State Highway Agency.