Structure 19 0017 · Placer County, CA

State Route 49 over Wise Canal

Carries State Route 49 over Wise Canal, 03-pla-049-5.02.

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
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT38 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

38 ft end to end. 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.

Built197353 years old
Length38.1 ft11.6 m
Daily traffic33,500counted 2009
Last inspectedAugust 2021every 48 months

Location

StateCalifornia
CountyPlacer
Location03-pla-049-5.02
CarriesState Route 49
CrossesWise Canal
Coordinates38.92520, -121.08468

Physical Characteristics

MaterialConcrete
DesignSlab
Total Length38.1 ft (11.6 m)
Max Span37.1 ft (11.3 m)
Deck Width87.9 ft (26.8 m)
Deck Area310.9 sq m
Main Spans1
Year Built1973

Traffic

Avg Daily Traffic33,500 (2009)
Truck Traffic3%
Lanes On Bridge4

Inspection & Ownership

Last InspectionAugust 2021
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number19 0017

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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