US Bridges

Interstate 15 over S15-MAIN S Br Chollas CR

Fair

San Diego County, California · 11-SD-015-0.45-SD · Structure no. 57 0493

Built
1954
71 years old
Condition
Fair
inspected March 2023
Type
Slab
Concrete Continuous
Length
92 ft
3 main spans
Daily traffic
30,000
2019 count
Owner
State
State Highway Agency

About this bridge

Interstate 15 over S15-MAIN S Br Chollas CR is a concrete continuous slab carrying Interstate 15 over S15-MAIN S Br Chollas CR in San Diego County, California. It was built in 1954, so it is 71 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 30,000 vehicles a day, roughly 2% of them trucks, projected to reach 42,000 by 2040. The structure is 92 ft (28 m) long and 67 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesInterstate 15
CrossesS15-MAIN S Br Chollas CR
Location11-SD-015-0.45-SD
RouteState Highway 15
CountySan Diego County
StateCalifornia
Coordinates32.69158, -117.12262
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating65 US tons
Inventory rating38.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length92 ft (28 m)
Longest span35 ft (10.7 m)
Deck width67 ft (20.4 m)
Roadway width58 ft (17.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30,000 (2019)
Projected traffic42,000 by 2040
Trucks2%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway and waterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Interstate 15 over S15-MAIN S Br Chollas CR built?

It was built in 1954, making it 71 years old in 2025.

What condition is Interstate 15 over S15-MAIN S Br Chollas CR 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 March 2023.

How much traffic does Interstate 15 over S15-MAIN S Br Chollas CR carry?

About 30,000 vehicles per day (2019 count), of which roughly 2% are trucks.

How long is Interstate 15 over S15-MAIN S Br Chollas CR?

The structure is 92 ft (28 m) long with a longest span of 35 ft (10.7 m) and a deck 67 ft wide.

Who owns Interstate 15 over S15-MAIN S Br Chollas CR?

It is owned by the State Highway Agency.