US Bridges

S15 &S163 Con Sep over RTE 15-SB & RTE 163-SB

Fair

San Diego County, California · 11-SD-015-M11.97-SD · Structure no. 57 0961F

Built
1986
39 years old
Condition
Fair
inspected July 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
622 ft
4 main spans
Daily traffic
800
2019 count
Owner
State
State Highway Agency

About this bridge

S15 &S163 Con Sep over RTE 15-SB & RTE 163-SB is a prestressed concrete continuous box beam or girders - multiple carrying S15 &S163 Con Sep over RTE 15-SB & RTE 163-SB in San Diego County, California. It was built in 1986, so it is 39 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 800 vehicles a day, roughly 1% of them trucks, projected to reach 1,572 by 2040. The structure is 622 ft (189.6 m) long and 27 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesS15 &S163 Con Sep
CrossesRTE 15-SB & RTE 163-SB
Location11-SD-015-M11.97-SD
RouteInterstate 15
Coordinates32.86158, -117.11299
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 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 geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length622 ft (189.6 m)
Longest span202 ft (61.6 m)
Deck width27 ft (8.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic800 (2019)
Projected traffic1,572 by 2040
Trucks1%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was S15 &S163 Con Sep over RTE 15-SB & RTE 163-SB built?

It was built in 1986, making it 39 years old in 2025.

What condition is S15 &S163 Con Sep over RTE 15-SB & RTE 163-SB 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 July 2023.

How much traffic does S15 &S163 Con Sep over RTE 15-SB & RTE 163-SB carry?

About 800 vehicles per day (2019 count), of which roughly 1% are trucks.

How long is S15 &S163 Con Sep over RTE 15-SB & RTE 163-SB?

The structure is 622 ft (189.6 m) long with a longest span of 202 ft (61.6 m) and a deck 27 ft wide.

Who owns S15 &S163 Con Sep over RTE 15-SB & RTE 163-SB?

It is owned by the State Highway Agency.