US Bridges

State Route 82 over Cordilleras Creek

Fair

San Mateo County, California · 04-SM-082-5.15-RDWC · Structure no. 35 0001

Built
1915
110 years old, rebuilt 1937
Condition
Fair
inspected May 2024
Type
Tee Beam
Concrete
Length
23 ft
1 main span
Daily traffic
25,000
2009 count
Owner
State
State Highway Agency

About this bridge

State Route 82 over Cordilleras Creek is a concrete tee beam carrying State Route 82 over Cordilleras Creek in San Mateo County, California. It was built in 1915 and reconstructed in 1937, so it is 110 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 25,000 vehicles a day, roughly 2% of them trucks, projected to reach 38,450 by 2046. The structure is 23 ft (7 m) long and 96 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesState Route 82
CrossesCordilleras Creek
Location04-SM-082-5.15-RDWC
RouteState Highway 82
Coordinates37.49371, -122.24423
Functional classUrban Other Principal Arterial

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 protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating22.2 US tons
Inventory rating17.2 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 15
Structure length23 ft (7 m)
Longest span21 ft (6.4 m)
Deck width96 ft (29.2 m)
Roadway width70 ft (21.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25,000 (2009)
Projected traffic38,450 by 2046
Trucks2%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was State Route 82 over Cordilleras Creek built?

It was built in 1915, making it 110 years old in 2025. It was reconstructed in 1937.

What condition is State Route 82 over Cordilleras 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 2024.

How much traffic does State Route 82 over Cordilleras Creek carry?

About 25,000 vehicles per day (2009 count), of which roughly 2% are trucks.

How long is State Route 82 over Cordilleras Creek?

The structure is 23 ft (7 m) long with a longest span of 21 ft (6.4 m) and a deck 96 ft wide.

Who owns State Route 82 over Cordilleras Creek?

It is owned by the State Highway Agency.