US Bridges

SR 120 EB over UP RR & Ace

Fair

San Joaquin County, California · 10-SJ-120-R1.81 · Structure no. 29 0272R

Built
1980
45 years old
Condition
Fair
inspected May 2023
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
195 ft
3 main spans
Daily traffic
37,500
2009 count
Owner
State
State Highway Agency

About this bridge

SR 120 EB over UP RR & Ace is a concrete continuous box beam or girders - multiple carrying SR 120 EB over UP RR & Ace in San Joaquin County, California. It was built in 1980, so it is 45 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 37,500 vehicles a day, roughly 19% of them trucks, projected to reach 56,675 by 2041. The structure is 195 ft (59.5 m) long and 45 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesSR 120 EB
CrossesUP RR & Ace
Location10-SJ-120-R1.81
RouteState Highway 120
CountySan Joaquin County
StateCalifornia
Coordinates37.78699, -121.27928
Functional classRural Principal Arterial - Other

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 inspectionMay 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 geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating77.5 US tons
Inventory rating59.6 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length195 ft (59.5 m)
Longest span84 ft (25.5 m)
Deck width45 ft (13.6 m)
Roadway width41 ft (12.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic37,500 (2009)
Projected traffic56,675 by 2041
Trucks19%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
Detour if closed6.8 mi (11 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 SR 120 EB over UP RR & Ace built?

It was built in 1980, making it 45 years old in 2025.

What condition is SR 120 EB over UP RR & 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 May 2023.

How much traffic does SR 120 EB over UP RR & Ace carry?

About 37,500 vehicles per day (2009 count), of which roughly 19% are trucks.

How long is SR 120 EB over UP RR & Ace?

The structure is 195 ft (59.5 m) long with a longest span of 84 ft (25.5 m) and a deck 45 ft wide.

Who owns SR 120 EB over UP RR & Ace?

It is owned by the State Highway Agency.