US Bridges

Interstate 8 over Abandoned W8-S163 Ramp

Fair

San Diego County, California · 11-SD-008-2.32-SD · Structure no. 57 0356

Built
1959
66 years old, rebuilt 1991
Condition
Fair
inspected February 2024
Type
Tee Beam
Concrete Continuous
Length
135 ft
3 main spans
Daily traffic
214,000
2014 count
Owner
State
State Highway Agency

About this bridge

Interstate 8 over Abandoned W8-S163 Ramp is a concrete continuous tee beam carrying Interstate 8 over Abandoned W8-S163 Ramp in San Diego County, California. It was built in 1959 and reconstructed in 1991, so it is 66 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 6 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 214,000 vehicles a day, roughly 2% of them trucks, projected to reach 295,079 by 2046. The structure is 135 ft (41.1 m) long and 140 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesInterstate 8
CrossesAbandoned W8-S163 Ramp
Location11-SD-008-2.32-SD
RouteInterstate 8
CountySan Diego County
StateCalifornia
Coordinates32.76151, -117.1652
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionFebruary 2024
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 rating110 US tons
Inventory rating78.3 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length135 ft (41.1 m)
Longest span58 ft (17.7 m)
Deck width140 ft (42.7 m)
Roadway width136 ft (41.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic214,000 (2014)
Projected traffic295,079 by 2046
Trucks2%
Lanes on structure8
Traffic directionTwo-way traffic
CarriesHighway
CrossesOther
Detour if closed1.9 mi (3 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 8 over Abandoned W8-S163 Ramp built?

It was built in 1959, making it 66 years old in 2025. It was reconstructed in 1991.

What condition is Interstate 8 over Abandoned W8-S163 Ramp 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 February 2024.

How much traffic does Interstate 8 over Abandoned W8-S163 Ramp carry?

About 214,000 vehicles per day (2014 count), of which roughly 2% are trucks.

How long is Interstate 8 over Abandoned W8-S163 Ramp?

The structure is 135 ft (41.1 m) long with a longest span of 58 ft (17.7 m) and a deck 140 ft wide.

Who owns Interstate 8 over Abandoned W8-S163 Ramp?

It is owned by the State Highway Agency.