Structure 22C0001 · Yolo County, CA

C. R. 87 over Cache Creek

Carries C. R. 87 over Cache Creek, 1.2 Miles N Of S.h. 16.

Overall conditionFair

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

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating5/9 · Fair
Substructuresets the rating5/9 · Fair
Channelnot part of overall3/9 · Serious
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT638 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 5/9 · sets the ratingSubstructure 5/9 · sets the rating

638 ft end to end, longest span 74 ft: about 1.8 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.

Built197848 years old
Length638.1 ft194.5 m
Daily traffic951counted 2008
Last inspectedOctober 2023every 24 months

Location

StateCalifornia
CountyYolo
Location1.2 Miles N Of S.h. 16
CarriesC. R. 87
CrossesCache Creek
Coordinates38.71187, -122.01156

Physical Characteristics

MaterialConcrete Continuous
DesignBox Beam - Multiple
Total Length638.1 ft (194.5 m)
Max Span74.1 ft (22.6 m)
Deck Width32.5 ft (9.9 m)
Deck Area1925.5 sq m
Main Spans9
Year Built1978

Traffic

Avg Daily Traffic951 (2008)
Truck Traffic20%
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number22C0001

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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