Structure 34C0088 · San Francisco County, CA

Bus Storage Ramp over Second Street

Carries Bus Storage Ramp over Second Street, NE Of Third Street.

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
SEMI-TRUCK · 72 FT457 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

457 ft end to end, longest span 140 ft: about 6 semi-trucks nose to tail. Lengths and the semi-truck 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 box-beam bridge.

Built20188 years old
Length457.0 ft139.3 m
Daily traffic200counted 2019
Last inspectedApril 2023every 24 months

Location

StateCalifornia
CountySan Francisco
LocationNE Of Third Street
CarriesBus Storage Ramp
CrossesSecond Street
Coordinates37.78236, -122.39644

Physical Characteristics

MaterialConcrete Continuous
DesignBox Beam - Multiple
Total Length457.0 ft (139.3 m)
Max Span140.1 ft (42.7 m)
Deck Width27.9 ft (8.5 m)
Deck Area1184.0 sq m
Main Spans3
Year Built2018

Traffic

Avg Daily Traffic200 (2019)
Truck Traffic90%
Lanes On Bridge2
Lanes Under Bridge4

Inspection & Ownership

Last InspectionApril 2023
Inspection FrequencyEvery 24 months
OwnerOther Local Agencies
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number34C0088

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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