Structure 57 0348 · San Diego County, CA

Interstate 8 over Fairmount Av-w8 On-ramp

Carries Interstate 8 over Fairmount Av-w8 On-ramp, 11-sd-008-6.32-sd.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT112 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

112 ft end to end, longest span 48 ft. Lengths and the car on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a slab bridge.

Built1958rebuilt 1993
Length111.9 ft34.1 m
Daily traffic217,000counted 2014
Last inspectedApril 2022every 48 months

Location

StateCalifornia
CountySan Diego
Location11-sd-008-6.32-sd
CarriesInterstate 8
CrossesFairmount Av-w8 On-ramp
Coordinates32.77892, -117.10056

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length111.9 ft (34.1 m)
Max Span47.9 ft (14.6 m)
Deck Width197.2 ft (60.1 m)
Deck Area2049.4 sq m
Main Spans3
Year Built1958 (reconstructed 1993)

Traffic

Avg Daily Traffic217,000 (2014)
Truck Traffic4%
Lanes On Bridge13
Lanes Under Bridge2

Inspection & Ownership

Last InspectionApril 2022
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number57 0348

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

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