US Bridges

State Route 163 SB over I-805 & S163-S805

Fair

San Diego County, California · 11-SD-163-6.96-SD · Structure no. 57 0674L

Built
1972
53 years old
Condition
Fair
inspected January 2025
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
594 ft
2 main spans
Daily traffic
74,000
2016 count
Owner
State
State Highway Agency

About this bridge

State Route 163 SB over I-805 & S163-S805 is a prestressed concrete continuous box beam or girders - multiple carrying State Route 163 SB over I-805 & S163-S805 in San Diego County, California. It was built in 1972, so it is 53 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 74,000 vehicles a day, roughly 4% of them trucks, projected to reach 137,314 by 2043. The structure is 594 ft (181.1 m) long and 68 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesState Route 163 SB
CrossesI-805 & S163-S805
Location11-SD-163-6.96-SD
RouteState Highway 163
Coordinates32.80774, -117.15325
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.9 US tons
Inventory rating37.8 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2 (+3 approach)
Design loadHS 20
Structure length594 ft (181.1 m)
Longest span170 ft (51.8 m)
Deck width68 ft (20.7 m)
Roadway width65 ft (19.8 m)
Vertical clearance over deck17 ft (5.1 m)

Traffic and service

Average daily traffic74,000 (2016)
Projected traffic137,314 by 2043
Trucks4%
Lanes on structure4
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 State Route 163 SB over I-805 & S163-S805 built?

It was built in 1972, making it 53 years old in 2025.

What condition is State Route 163 SB over I-805 & S163-S805 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 January 2025.

How much traffic does State Route 163 SB over I-805 & S163-S805 carry?

About 74,000 vehicles per day (2016 count), of which roughly 4% are trucks.

How long is State Route 163 SB over I-805 & S163-S805?

The structure is 594 ft (181.1 m) long with a longest span of 170 ft (51.8 m) and a deck 68 ft wide.

Who owns State Route 163 SB over I-805 & S163-S805?

It is owned by the State Highway Agency.