US Bridges

State Route 84 over Alameda CR UPRR BNSF Ace

Fair

Alameda County, California · 04-ALA-084-14.32 · Structure no. 33 0039

Built
1947
78 years old
Condition
Fair
inspected August 2023
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
991 ft
14 main spans
Daily traffic
13,500
2010 count
Owner
State
State Highway Agency

About this bridge

State Route 84 over Alameda CR UPRR BNSF Ace is a concrete continuous box beam or girders - multiple carrying State Route 84 over Alameda CR UPRR BNSF Ace in Alameda County, California. It was built in 1947, so it is 78 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 13,500 vehicles a day, roughly 10% of them trucks, projected to reach 32,822 by 2043. The structure is 991 ft (302.1 m) long and 32 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesState Route 84
CrossesAlameda CR UPRR BNSF Ace
Location04-ALA-084-14.32
RouteState Highway 84
CountyAlameda County
StateCalifornia
Coordinates37.59424, -121.93087
Functional classRural Minor 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 protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating75.7 US tons
Inventory rating45.3 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans14
Design loadH 20
Structure length991 ft (302.1 m)
Longest span82 ft (25 m)
Deck width32 ft (9.7 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,500 (2010)
Projected traffic32,822 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad and waterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusEligible 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 84 over Alameda CR UPRR BNSF Ace built?

It was built in 1947, making it 78 years old in 2025.

What condition is State Route 84 over Alameda CR UPRR BNSF Ace 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 August 2023.

How much traffic does State Route 84 over Alameda CR UPRR BNSF Ace carry?

About 13,500 vehicles per day (2010 count), of which roughly 10% are trucks.

How long is State Route 84 over Alameda CR UPRR BNSF Ace?

The structure is 991 ft (302.1 m) long with a longest span of 82 ft (25 m) and a deck 32 ft wide.

Who owns State Route 84 over Alameda CR UPRR BNSF Ace?

It is owned by the State Highway Agency.