US Bridges

First Street over UP RR BNSF RY & Ace

Fair

Alameda County, California · 150 South of Scott ST · Structure no. 33C0425

Built
1977
48 years old
Condition
Fair
inspected November 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
194 ft
3 main spans
Daily traffic
27,400
2009 count
Owner
City
City or Municipal Highway Agency

About this bridge

First Street over UP RR BNSF RY & Ace is a prestressed concrete continuous box beam or girders - multiple carrying First Street over UP RR BNSF RY & Ace in Alameda County, California. It was built in 1977, so it is 48 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 27,400 vehicles a day, roughly 5% of them trucks, projected to reach 10,904 by 2041. The structure is 194 ft (59.1 m) long and 78 ft wide.

CarriesFirst Street
CrossesUP RR BNSF RY & Ace
Location150 South of Scott ST
RouteCity Street 0
Coordinates37.68641, -121.75879
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
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 inspectionNovember 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 rating88.2 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length194 ft (59.1 m)
Longest span88 ft (26.8 m)
Deck width78 ft (23.7 m)
Roadway width66 ft (20.1 m)
Vertical clearance over deck23 ft (7 m)

Traffic and service

Average daily traffic27,400 (2009)
Projected traffic10,904 by 2041
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesRailroad
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 First Street over UP RR BNSF RY & Ace built?

It was built in 1977, making it 48 years old in 2025.

What condition is First Street over UP RR BNSF RY & 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 November 2023.

How much traffic does First Street over UP RR BNSF RY & Ace carry?

About 27,400 vehicles per day (2009 count), of which roughly 5% are trucks.

How long is First Street over UP RR BNSF RY & Ace?

The structure is 194 ft (59.1 m) long with a longest span of 88 ft (26.8 m) and a deck 78 ft wide.

Who owns First Street over UP RR BNSF RY & Ace?

It is owned by the City or Municipal Highway Agency.