US Bridges

Auto Mall Parkway over Interstate 680

Poor

Alameda County, California · 04-ALA-680-M4.02-FMT · Structure no. 33 0368

Built
1971
54 years old
Condition
Poor
inspected March 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
266 ft
2 main spans
Daily traffic
21,534
2018 count
Owner
State
State Highway Agency

About this bridge

Auto Mall Parkway over Interstate 680 is a prestressed concrete continuous box beam or girders - multiple carrying Auto Mall Parkway over Interstate 680 in Alameda County, California. It was built in 1971, so it is 54 years old, younger than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 21,534 vehicles a day, roughly 2% of them trucks, projected to reach 26,810 by 2042. The structure is 266 ft (81.1 m) long and 94 ft wide.

CarriesAuto Mall Parkway
CrossesInterstate 680
Location04-ALA-680-M4.02-FMT
RouteCity Street 0
Coordinates37.51441, -121.94013
Functional classUrban Minor Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionMarch 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 rating56.1 US tons
Inventory rating40 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length266 ft (81.1 m)
Longest span144 ft (43.9 m)
Deck width94 ft (28.7 m)
Roadway width68 ft (20.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21,534 (2018)
Projected traffic26,810 by 2042
Trucks2%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemNo

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 Auto Mall Parkway over Interstate 680 built?

It was built in 1971, making it 54 years old in 2025.

What condition is Auto Mall Parkway over Interstate 680 in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in March 2024.

How much traffic does Auto Mall Parkway over Interstate 680 carry?

About 21,534 vehicles per day (2018 count), of which roughly 2% are trucks.

How long is Auto Mall Parkway over Interstate 680?

The structure is 266 ft (81.1 m) long with a longest span of 144 ft (43.9 m) and a deck 94 ft wide.

Who owns Auto Mall Parkway over Interstate 680?

It is owned by the State Highway Agency.