US Bridges

Carmel Mountain RD over Interstate 15 W/Hov

Fair

San Diego County, California · 11-SD-015-M20.57 · Structure no. 57 1125

Built
2007
18 years old
Condition
Fair
inspected September 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
292 ft
3 main spans
Daily traffic
15,000
2020 count
Owner
State
State Highway Agency

About this bridge

Carmel Mountain RD over Interstate 15 W/Hov is a prestressed concrete continuous box beam or girders - multiple carrying Carmel Mountain RD over Interstate 15 W/Hov in San Diego County, California. It was built in 2007, so it is 18 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 15,000 vehicles a day, roughly 1% of them trucks, projected to reach 15,664 by 2041. The structure is 292 ft (89.1 m) long and 145 ft wide.

Location

Open in Google Maps
CarriesCarmel Mountain RD
CrossesInterstate 15 W/Hov
Location11-SD-015-M20.57
RouteCity Street 0
CountySan Diego County
StateCalifornia
Coordinates32.97865, -117.08697
Functional classUrban Minor 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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
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
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length292 ft (89.1 m)
Longest span101 ft (30.8 m)
Deck width145 ft (44.3 m)
Roadway width107 ft (32.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,000 (2020)
Projected traffic15,664 by 2041
Trucks1%
Lanes on structure8
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemNo

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 Carmel Mountain RD over Interstate 15 W/Hov built?

It was built in 2007, making it 18 years old in 2025.

What condition is Carmel Mountain RD over Interstate 15 W/Hov 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 September 2023.

How much traffic does Carmel Mountain RD over Interstate 15 W/Hov carry?

About 15,000 vehicles per day (2020 count), of which roughly 1% are trucks.

How long is Carmel Mountain RD over Interstate 15 W/Hov?

The structure is 292 ft (89.1 m) long with a longest span of 101 ft (30.8 m) and a deck 145 ft wide.

Who owns Carmel Mountain RD over Interstate 15 W/Hov?

It is owned by the State Highway Agency.