US Bridges

State Route 85 NB over Caltrain UP RR AMTRAK

Fair

Santa Clara County, California · 04-SCL-085-0.29-SJS · Structure no. 37 0488R

Built
1992
33 years old
Condition
Fair
inspected May 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
467 ft
3 main spans
Daily traffic
24,500
2009 count
Owner
State
State Highway Agency

About this bridge

State Route 85 NB over Caltrain UP RR AMTRAK is a prestressed concrete continuous box beam or girders - multiple carrying State Route 85 NB over Caltrain UP RR AMTRAK in Santa Clara County, California. It was built in 1992, so it is 33 years old, younger 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 24,500 vehicles a day, roughly 1% of them trucks, projected to reach 61,556 by 2041. The structure is 467 ft (142.3 m) long and 61 ft wide.

Location

Open in Google Maps
CarriesState Route 85 NB
CrossesCaltrain UP RR AMTRAK
Location04-SCL-085-0.29-SJS
RouteState Highway 85
CountySanta Clara County
StateCalifornia
Coordinates37.24113, -121.77769
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69.3 US tons
Inventory rating53.2 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length467 ft (142.3 m)
Longest span223 ft (68 m)
Deck width61 ft (18.6 m)
Roadway width58 ft (17.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic24,500 (2009)
Projected traffic61,556 by 2041
Trucks1%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and railroad
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 85 NB over Caltrain UP RR AMTRAK built?

It was built in 1992, making it 33 years old in 2025.

What condition is State Route 85 NB over Caltrain UP RR AMTRAK 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 State Route 85 NB over Caltrain UP RR AMTRAK carry?

About 24,500 vehicles per day (2009 count), of which roughly 1% are trucks.

How long is State Route 85 NB over Caltrain UP RR AMTRAK?

The structure is 467 ft (142.3 m) long with a longest span of 223 ft (68 m) and a deck 61 ft wide.

Who owns State Route 85 NB over Caltrain UP RR AMTRAK?

It is owned by the State Highway Agency.