US Bridges

Sixth ST over UPRR

Fair

Los Angeles County, California · 50FT S/O Mission RD · Structure no. 53C1667

Built
1979
46 years old
Condition
Fair
inspected July 2021
Type
Slab
Prestressed Concrete
Length
54 ft
1 main span
Daily traffic
8,778
2015 count
Owner
City
City or Municipal Highway Agency

About this bridge

Sixth ST over UPRR is a prestressed concrete slab carrying Sixth ST over UPRR in Los Angeles County, California. It was built in 1979, so it is 46 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 6 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 8,778 vehicles a day, roughly 2% of them trucks, projected to reach 9,757 by 2041. The structure is 54 ft (16.5 m) long and 63 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSixth ST
CrossesUPRR
Location50FT S/O Mission RD
RouteCity Street 0RP18
CountyLos Angeles County
StateCalifornia
Coordinates34.08667, -118.12933
Functional classUrban Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110 US tons
Inventory rating68.2 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length54 ft (16.5 m)
Longest span48 ft (14.6 m)
Deck width63 ft (19.1 m)
Roadway width47 ft (14.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,778 (2015)
Projected traffic9,757 by 2041
Trucks2%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed1.2 mi (2 km)
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 Sixth ST over UPRR built?

It was built in 1979, making it 46 years old in 2025.

What condition is Sixth ST over UPRR 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 July 2021.

How much traffic does Sixth ST over UPRR carry?

About 8,778 vehicles per day (2015 count), of which roughly 2% are trucks.

How long is Sixth ST over UPRR?

The structure is 54 ft (16.5 m) long with a longest span of 48 ft (14.6 m) and a deck 63 ft wide.

Who owns Sixth ST over UPRR?

It is owned by the City or Municipal Highway Agency.