Structure 34 0128K · San Francisco County, CA

W80 - Harrison Off over Sterling-e80 Bryant Rncn

Carries W80 - Harrison Off over Sterling-e80 Bryant Rncn, 04-sf-080-5.50l-sf.

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 FT715 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

715 ft end to end, longest span 113 ft: about 2.0 football fields. 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.

Built200818 years old
Length714.6 ft217.8 m
Daily traffic8,600counted 2014
Last inspectedFebruary 2025every 24 months

Location

StateCalifornia
CountySan Francisco
Location04-sf-080-5.50l-sf
CarriesW80 - Harrison Off
CrossesSterling-e80 Bryant Rncn
Coordinates37.78458, -122.39330

Physical Characteristics

MaterialConcrete Continuous
DesignBox Beam - Single/Spread
Total Length714.6 ft (217.8 m)
Max Span113.2 ft (34.5 m)
Deck Width26.9 ft (8.2 m)
Deck Area1786.0 sq m
Main Spans7
Year Built2008

Traffic

Avg Daily Traffic8,600 (2014)
Truck Traffic1%
Lanes On Bridge1
Lanes Under Bridge4

Inspection & Ownership

Last InspectionFebruary 2025
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number34 0128K

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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