US Bridges

S680-W580 Conn over ST PATRICK-S680 on Ramp

Fair

Alameda County, California · 04-ALA-680-R20.22-PLE · Structure no. 33 0644F

Built
2001
24 years old
Condition
Fair
inspected April 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
342 ft
3 main spans
Daily traffic
80,000
2010 count
Owner
State
State Highway Agency

About this bridge

S680-W580 Conn over ST PATRICK-S680 on Ramp is a prestressed concrete continuous box beam or girders - multiple carrying S680-W580 Conn over ST PATRICK-S680 on Ramp in Alameda County, California. It was built in 2001, so it is 24 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 80,000 vehicles a day, roughly 10% of them trucks, projected to reach 89,350 by 2042. The structure is 342 ft (104.2 m) long and 43 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesS680-W580 Conn
CrossesST PATRICK-S680 on Ramp
Location04-ALA-680-R20.22-PLE
RouteInterstate 680
Coordinates37.70279, -121.92402
Functional classUrban Principal Arterial - Interstate

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 inspectionApril 2024
Inspection intervalevery 24 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

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length342 ft (104.2 m)
Longest span156 ft (47.5 m)
Deck width43 ft (13 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deck17 ft (5.3 m)

Traffic and service

Average daily traffic80,000 (2010)
Projected traffic89,350 by 2042
Trucks10%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was S680-W580 Conn over ST PATRICK-S680 on Ramp built?

It was built in 2001, making it 24 years old in 2025.

What condition is S680-W580 Conn over ST PATRICK-S680 on Ramp 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 April 2024.

How much traffic does S680-W580 Conn over ST PATRICK-S680 on Ramp carry?

About 80,000 vehicles per day (2010 count), of which roughly 10% are trucks.

How long is S680-W580 Conn over ST PATRICK-S680 on Ramp?

The structure is 342 ft (104.2 m) long with a longest span of 156 ft (47.5 m) and a deck 43 ft wide.

Who owns S680-W580 Conn over ST PATRICK-S680 on Ramp?

It is owned by the State Highway Agency.