US Bridges

W8-FAIRMOUNT Off over Alvarado Canyon RD EB

Good

San Diego County, California · 11-SD-008-6.36-SD · Structure no. 57 0888K

Built
1979
46 years old
Condition
Good
inspected April 2022
Type
Slab
Prestressed Concrete
Length
61 ft
1 main span
Daily traffic
10,300
2014 count
Owner
State
State Highway Agency

About this bridge

W8-FAIRMOUNT Off over Alvarado Canyon RD EB is a prestressed concrete slab carrying W8-FAIRMOUNT Off over Alvarado Canyon RD EB in San Diego County, California. It was built in 1979, so it is 46 years old, younger than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 10,300 vehicles a day, roughly 1% of them trucks, projected to reach 20,815 by 2039. The structure is 61 ft (18.6 m) long and 39 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesW8-FAIRMOUNT Off
CrossesAlvarado Canyon RD EB
Location11-SD-008-6.36-SD
RouteInterstate 8
Coordinates32.77968, -117.10001
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionApril 2022
Inspection intervalevery 48 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 alignment7: Better than present minimum criteria
Operating rating88.2 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length61 ft (18.6 m)
Longest span55 ft (16.8 m)
Deck width39 ft (12 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,300 (2014)
Projected traffic20,815 by 2039
Trucks1%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 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 W8-FAIRMOUNT Off over Alvarado Canyon RD EB built?

It was built in 1979, making it 46 years old in 2025.

What condition is W8-FAIRMOUNT Off over Alvarado Canyon RD EB in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2022.

How much traffic does W8-FAIRMOUNT Off over Alvarado Canyon RD EB carry?

About 10,300 vehicles per day (2014 count), of which roughly 1% are trucks.

How long is W8-FAIRMOUNT Off over Alvarado Canyon RD EB?

The structure is 61 ft (18.6 m) long with a longest span of 55 ft (16.8 m) and a deck 39 ft wide.

Who owns W8-FAIRMOUNT Off over Alvarado Canyon RD EB?

It is owned by the State Highway Agency.