US Bridges

Spring ST-W8 Onrmp over Interstate 8

Fair

San Diego County, California · 11-SD-008-11.03-LMSA · Structure no. 57 0432

Built
1962
63 years old
Condition
Fair
inspected May 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
214 ft
4 main spans
Daily traffic
8,000
2015 count
Owner
State
State Highway Agency

About this bridge

Spring ST-W8 Onrmp over Interstate 8 is a concrete continuous box beam or girders - multiple carrying Spring ST-W8 Onrmp over Interstate 8 in San Diego County, California. It was built in 1962, so it is 63 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 8,000 vehicles a day, roughly 1% of them trucks, projected to reach 15,405 by 2041. The structure is 214 ft (65.2 m) long and 34 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSpring ST-W8 Onrmp
CrossesInterstate 8
Location11-SD-008-11.03-LMSA
RouteCity Street 0
CountySan Diego County
StateCalifornia
Coordinates32.7712, -117.02299
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.
Substructure7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating78.6 US tons
Inventory rating47.2 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length214 ft (65.2 m)
Longest span74 ft (22.6 m)
Deck width34 ft (10.4 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,000 (2015)
Projected traffic15,405 by 2041
Trucks1%
Lanes on structure2
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 Spring ST-W8 Onrmp over Interstate 8 built?

It was built in 1962, making it 63 years old in 2025.

What condition is Spring ST-W8 Onrmp over Interstate 8 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 May 2024.

How much traffic does Spring ST-W8 Onrmp over Interstate 8 carry?

About 8,000 vehicles per day (2015 count), of which roughly 1% are trucks.

How long is Spring ST-W8 Onrmp over Interstate 8?

The structure is 214 ft (65.2 m) long with a longest span of 74 ft (22.6 m) and a deck 34 ft wide.

Who owns Spring ST-W8 Onrmp over Interstate 8?

It is owned by the State Highway Agency.