US Bridges

Lake Blvd over State Route 84

Fair

Alameda County, California · 04-ALA-084-R5.39-NWK · Structure no. 33 0511

Built
1983
42 years old
Condition
Fair
inspected August 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
159 ft
2 main spans
Daily traffic
4,500
2010 count
Owner
State
State Highway Agency

About this bridge

Lake Blvd over State Route 84 is a prestressed concrete continuous box beam or girders - multiple carrying Lake Blvd over State Route 84 in Alameda County, California. It was built in 1983, so it is 42 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 4,500 vehicles a day, roughly 10% of them trucks, projected to reach 6,413 by 2045. The structure is 159 ft (48.5 m) long and 52 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesLake Blvd
CrossesState Route 84
Location04-ALA-084-R5.39-NWK
RouteCity Street 0
CountyAlameda County
StateCalifornia
Coordinates37.55642, -122.04541
Functional classUrban Local

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 inspectionAugust 2023
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 geometry6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating56.1 US tons
Inventory rating43.2 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length159 ft (48.5 m)
Longest span82 ft (25 m)
Deck width52 ft (15.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,500 (2010)
Projected traffic6,413 by 2045
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
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 statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Lake Blvd over State Route 84 built?

It was built in 1983, making it 42 years old in 2025.

What condition is Lake Blvd over State Route 84 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 Lake Blvd over State Route 84 carry?

About 4,500 vehicles per day (2010 count), of which roughly 10% are trucks.

How long is Lake Blvd over State Route 84?

The structure is 159 ft (48.5 m) long with a longest span of 82 ft (25 m) and a deck 52 ft wide.

Who owns Lake Blvd over State Route 84?

It is owned by the State Highway Agency.