Structure 34 0095 · San Francisco County, CA

Geneva AVE over Route I 280

Carries Geneva AVE over Route I 280, 04-sf-280-r1.65-sf.

Overall conditionPoor

Set by its lowest-rated component: Deck at 4 of 9.

How ratings work
Decksets the rating4/9 · Poor
Superstructure5/9 · Fair
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT152 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 4/9 · sets the ratingSuperstructure 5/9Substructure 7/9

152 ft end to end, longest span 74 ft: about 2 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.

Built196462 years old
Length151.6 ft46.2 m
Daily traffic26,805counted 2019
Last inspectedApril 2024every 24 months

Location

StateCalifornia
CountySan Francisco
Location04-sf-280-r1.65-sf
CarriesGeneva AVE
CrossesRoute I 280
Coordinates37.72127, -122.44837

Physical Characteristics

MaterialConcrete Continuous
DesignBox Beam - Multiple
Total Length151.6 ft (46.2 m)
Max Span74.1 ft (22.6 m)
Deck Width82.0 ft (25 m)
Deck Area1,155 sq m
Main Spans2
Year Built1964

Traffic

Avg Daily Traffic26,805 (2019)
Truck Traffic1%
Lanes On Bridge4
Lanes Under Bridge9

Inspection & Ownership

Last InspectionApril 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number34 0095

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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