US Bridges

Interstate 5 NB over Grand Ave

Fair

Orange County, California · 12-ORA-005-31.76-SA · Structure no. 55 0671R

Built
1995
30 years old
Condition
Fair
inspected August 2023
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
197 ft
2 main spans
Daily traffic
179,700
2016 count
Owner
State
State Highway Agency

About this bridge

Interstate 5 NB over Grand Ave is a concrete continuous box beam or girders - multiple carrying Interstate 5 NB over Grand Ave in Orange County, California. It was built in 1995, so it is 30 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 179,700 vehicles a day, roughly 5% of them trucks, projected to reach 199,797 by 2040. The structure is 197 ft (59.9 m) long and 149 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesInterstate 5 NB
CrossesGrand Ave
Location12-ORA-005-31.76-SA
RouteInterstate 5
CountyOrange County
StateCalifornia
Coordinates33.75529, -117.85161
Functional classUrban Principal Arterial - Interstate

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 inspectionAugust 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 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

Structure typeBox Beam or Girders - Multiple
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length197 ft (59.9 m)
Longest span98 ft (30 m)
Deck width149 ft (45.4 m)
Roadway width144 ft (43.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic179,700 (2016)
Projected traffic199,797 by 2040
Trucks5%
Lanes on structure7
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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 Interstate 5 NB over Grand Ave built?

It was built in 1995, making it 30 years old in 2025.

What condition is Interstate 5 NB over Grand Ave 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 August 2023.

How much traffic does Interstate 5 NB over Grand Ave carry?

About 179,700 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Interstate 5 NB over Grand Ave?

The structure is 197 ft (59.9 m) long with a longest span of 98 ft (30 m) and a deck 149 ft wide.

Who owns Interstate 5 NB over Grand Ave?

It is owned by the State Highway Agency.