Structure 51753000001052 · Sierra County, CA

No Data Entered over N. Yuba River

Carries No Data Entered over N. Yuba River, No Data Entered.

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 overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT84 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

84 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 box-beam bridge.

Built1978rebuilt 2011
Length84.0 ft25.6 m
Daily traffic501 lanes
Last inspectedSeptember 2024every 24 months

Location

StateCalifornia
CountySierra
LocationNo Data Entered
CarriesNo Data Entered
CrossesN. Yuba River
Coordinates39.61629, -120.59031

Physical Characteristics

MaterialConcrete Continuous
DesignBox Beam - Multiple
Total Length84.0 ft (25.6 m)
Max Span84.0 ft (25.6 m)
Deck Width20.3 ft (6.2 m)
Deck Area158.7 sq m
Main Spans1
Year Built1978 (reconstructed 2011)

Traffic

Avg Daily Traffic50
Lanes On Bridge1

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 24 months
OwnerU.S. Forest Service
Historical SignificanceHistorical significance is not determined
Scour Critical7 — Countermeasures installed
Structure Number051753000001052

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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