Structure 57 0495S · San Diego County, CA

Main-n15 On Ramp over South Branch Chollas Crk

Carries Main-n15 On Ramp over South Branch Chollas Crk, 11-sd-015-0.47-sd.

Overall conditionFair

Set by its lowest-rated component: Deck and Superstructure and Substructure at 5 of 9.

How ratings work
Decksets the rating5/9 · Fair
Superstructuresets the rating5/9 · Fair
Substructuresets the rating5/9 · Fair
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT49 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 5/9Substructure 5/9

49 ft end to end, longest span 19 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.

Built1954rebuilt 1962
Length48.9 ft14.9 m
Daily traffic4,200counted 2019
Last inspectedMarch 2023every 24 months

Location

StateCalifornia
CountySan Diego
Location11-sd-015-0.47-sd
CarriesMain-n15 On Ramp
CrossesSouth Branch Chollas Crk
Coordinates32.69152, -117.12226

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length48.9 ft (14.9 m)
Max Span19.0 ft (5.8 m)
Deck Width25.3 ft (7.7 m)
Deck Area114.7 sq m
Main Spans3
Year Built1954 (reconstructed 1962)

Traffic

Avg Daily Traffic4,200 (2019)
Truck Traffic2%
Lanes On Bridge1

Inspection & Ownership

Last InspectionMarch 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number57 0495S

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.

Nearby Bridges