US Bridges

NB 5 Offramp over Graded Earth

Good

Los Angeles County, California · 07-LA-005-2.37-NRW · Structure no. 53 3019S

Built
2016
9 years old
Condition
Good
inspected October 2022
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
200 ft
3 main spans
Daily traffic
6,390
2016 count
Owner
State
State Highway Agency

About this bridge

NB 5 Offramp over Graded Earth is a concrete continuous box beam or girders - multiple carrying NB 5 Offramp over Graded Earth in Los Angeles County, California. It was built in 2016, so it is 9 years old, younger than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 6,390 vehicles a day, roughly 5% of them trucks, projected to reach 9,125 by 2041. The structure is 200 ft (61 m) long and 52 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesNB 5 Offramp
CrossesGraded Earth
Location07-LA-005-2.37-NRW
RouteInterstate 5
Coordinates33.8938, -118.04582
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length200 ft (61 m)
Longest span82 ft (25 m)
Deck width52 ft (15.9 m)
Roadway width49 ft (15 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,390 (2016)
Projected traffic9,125 by 2041
Trucks5%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesOther
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 NB 5 Offramp over Graded Earth built?

It was built in 2016, making it 9 years old in 2025.

What condition is NB 5 Offramp over Graded Earth in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2022.

How much traffic does NB 5 Offramp over Graded Earth carry?

About 6,390 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is NB 5 Offramp over Graded Earth?

The structure is 200 ft (61 m) long with a longest span of 82 ft (25 m) and a deck 52 ft wide.

Who owns NB 5 Offramp over Graded Earth?

It is owned by the State Highway Agency.