Structure 18 0024 · Sutter County, CA

State Route 20 over Sutter Street

Carries State Route 20 over Sutter Street, 03-sut-020-16.84-yc.

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 FT87 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

87 ft end to end, longest span 36 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.

Built1946rebuilt 2003
Length86.6 ft26.4 m
Daily traffic41,750counted 2009
Last inspectedSeptember 2021every 48 months

Location

StateCalifornia
CountySutter
Location03-sut-020-16.84-yc
CarriesState Route 20
CrossesSutter Street
Coordinates39.14250, -121.61214

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length86.6 ft (26.4 m)
Max Span36.1 ft (11 m)
Deck Width88.9 ft (27.1 m)
Deck Area715.4 sq m
Main Spans3
Year Built1946 (reconstructed 2003)

Traffic

Avg Daily Traffic41,750 (2009)
Truck Traffic5%
Lanes On Bridge5
Lanes Under Bridge2

Inspection & Ownership

Last InspectionSeptember 2021
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number18 0024

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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