US Bridges

S87- N&s 280 Conn over N87-N280 Auzerais On-Rmp

Fair

Santa Clara County, California · 04-SCL-087-5.23-SJS · Structure no. 37 0273F

Built
1970
55 years old
Condition
Fair
inspected January 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
845 ft
2 main spans
Daily traffic
14,400
2001 count
Owner
State
State Highway Agency

About this bridge

S87- N&s 280 Conn over N87-N280 Auzerais On-Rmp is a prestressed concrete continuous box beam or girders - multiple carrying S87- N&s 280 Conn over N87-N280 Auzerais On-Rmp in Santa Clara County, California. It was built in 1970, so it is 55 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 14,400 vehicles a day, roughly 5% of them trucks, projected to reach 19,367 by 2042. The structure is 845 ft (257.5 m) long and 41 ft wide.

Location

Open in Google Maps
CarriesS87- N&s 280 Conn
CrossesN87-N280 Auzerais On-Rmp
Location04-SCL-087-5.23-SJS
RouteState Highway 87
CountySanta Clara County
StateCalifornia
Coordinates37.32446, -121.89398
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating84.7 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2 (+10 approach)
Design loadHS 20 + Mod
Structure length845 ft (257.5 m)
Longest span114 ft (34.8 m)
Deck width41 ft (12.4 m)
Roadway width39 ft (11.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,400 (2001)
Projected traffic19,367 by 2042
Trucks5%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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 S87- N&s 280 Conn over N87-N280 Auzerais On-Rmp built?

It was built in 1970, making it 55 years old in 2025.

What condition is S87- N&s 280 Conn over N87-N280 Auzerais On-Rmp 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 January 2024.

How much traffic does S87- N&s 280 Conn over N87-N280 Auzerais On-Rmp carry?

About 14,400 vehicles per day (2001 count), of which roughly 5% are trucks.

How long is S87- N&s 280 Conn over N87-N280 Auzerais On-Rmp?

The structure is 845 ft (257.5 m) long with a longest span of 114 ft (34.8 m) and a deck 41 ft wide.

Who owns S87- N&s 280 Conn over N87-N280 Auzerais On-Rmp?

It is owned by the State Highway Agency.