US Bridges

9th ST over 10st Rmp 10st Hrb Sc DR

Fair

Los Angeles County, California · 0.5MI E/O Santa Fe Ave · Structure no. 53C0930

Built
1960
65 years old
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
659 ft
8 main spans
Daily traffic
2,830
2015 count
Owner
City
City or Municipal Highway Agency

About this bridge

9th ST over 10st Rmp 10st Hrb Sc DR is a steel stringer/multi-beam or girder carrying 9th ST over 10st Rmp 10st Hrb Sc DR in Los Angeles County, California. It was built in 1960, so it is 65 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 2,830 vehicles a day, roughly 1% of them trucks, projected to reach 3,400 by 2044. The structure is 659 ft (200.9 m) long and 38 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
Carries9th ST
Crosses10st Rmp 10st Hrb Sc DR
Location0.5MI E/O Santa Fe Ave
RouteCity Street 0
CountyLos Angeles County
StateCalifornia
Coordinates33.779, -118.20924
Functional classUrban Other Principal 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure8 Very GoodNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating67.1 US tons
Inventory rating40.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans8
Design loadHS 20
Structure length659 ft (200.9 m)
Longest span115 ft (35.1 m)
Deck width38 ft (11.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,830 (2015)
Projected traffic3,400 by 2044
Trucks1%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

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 9th ST over 10st Rmp 10st Hrb Sc DR built?

It was built in 1960, making it 65 years old in 2025.

What condition is 9th ST over 10st Rmp 10st Hrb Sc DR 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 2024.

How much traffic does 9th ST over 10st Rmp 10st Hrb Sc DR carry?

About 2,830 vehicles per day (2015 count), of which roughly 1% are trucks.

How long is 9th ST over 10st Rmp 10st Hrb Sc DR?

The structure is 659 ft (200.9 m) long with a longest span of 115 ft (35.1 m) and a deck 38 ft wide.

Who owns 9th ST over 10st Rmp 10st Hrb Sc DR?

It is owned by the City or Municipal Highway Agency.