Structure 22C0064 · Yolo County, CA

County Road 99w over Smith Creek

Carries County Road 99w over Smith Creek, 0.77 Mi SE Of CR 13.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating5/9 · Fair
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT40 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 5/9 · sets the rating

40 ft end to end, longest span 13 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.

Built1916rebuilt 1950
Length40.0 ft12.2 m
Daily traffic1,500counted 2015
Last inspectedJanuary 2025every 24 months

Location

StateCalifornia
CountyYolo
Location0.77 Mi SE Of CR 13
CarriesCounty Road 99w
CrossesSmith Creek
Coordinates38.78576, -121.86816

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length40.0 ft (12.2 m)
Max Span13.1 ft (4 m)
Deck Width44.9 ft (13.7 m)
Deck Area167.1 sq m
Main Spans3
Year Built1916 (reconstructed 1950)

Traffic

Avg Daily Traffic1,500 (2015)
Truck Traffic40%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJanuary 2025
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number22C0064

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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