US Bridges

Interstate 5 over C Street

Good

San Diego County, California · 11-SD-005-R15.25-SD · Structure no. 57 0425

Built
1962
63 years old
Condition
Good
inspected June 2023
Type
Box Beam or Girders - Multiple
Concrete
Length
71 ft
1 main span
Daily traffic
208,000
2020 count
Owner
State
State Highway Agency

About this bridge

Interstate 5 over C Street is a concrete box beam or girders - multiple carrying Interstate 5 over C Street in San Diego County, California. It was built in 1962, so it is 63 years old, older 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 208,000 vehicles a day, roughly 4% of them trucks, projected to reach 273,057 by 2040. The structure is 71 ft (21.6 m) long and 187 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesInterstate 5
CrossesC Street
Location11-SD-005-R15.25-SD
RouteInterstate 5
Coordinates32.71673, -117.14733
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 inspectionJune 2023
Inspection intervalevery 24 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 rating63.2 US tons
Inventory rating48.9 US tons

Structure

MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length71 ft (21.6 m)
Longest span68 ft (20.7 m)
Deck width187 ft (56.9 m)
Roadway width182 ft (55.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic208,000 (2020)
Projected traffic273,057 by 2040
Trucks4%
Lanes on structure11
Traffic directionTwo-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 over C Street built?

It was built in 1962, making it 63 years old in 2025.

What condition is Interstate 5 over C Street 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 June 2023.

How much traffic does Interstate 5 over C Street carry?

About 208,000 vehicles per day (2020 count), of which roughly 4% are trucks.

How long is Interstate 5 over C Street?

The structure is 71 ft (21.6 m) long with a longest span of 68 ft (20.7 m) and a deck 187 ft wide.

Who owns Interstate 5 over C Street?

It is owned by the State Highway Agency.