Structure 5115600000900 · Plumas County, CA

Road 24n29 over Meadow Valley Creek

Carries Road 24n29 over Meadow Valley Creek, Meadow Valley Creek.

Overall conditionFair

Set by its lowest-rated component: Superstructure at 6 of 9.

How ratings work
Deck7/9 · Good
Superstructuresets the rating6/9 · Satisfactory
Substructure7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT61 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 7/9

61 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 girder bridge.

Built1966rebuilt 2000
Length61.4 ft18.7 m
Daily traffic501 lanes
Last inspectedSeptember 2023every 24 months

Location

StateCalifornia
CountyPlumas
LocationMeadow Valley Creek
CarriesRoad 24n29
CrossesMeadow Valley Creek
Coordinates39.93028, -121.04187

Physical Characteristics

MaterialConcrete
DesignGirder and Floorbeam
Total Length61.4 ft (18.7 m)
Max Span58.4 ft (17.8 m)
Deck Width16.7 ft (5.1 m)
Deck Area95.4 sq m
Main Spans1
Year Built1966 (reconstructed 2000)

Traffic

Avg Daily Traffic50
Lanes On Bridge1

Inspection & Ownership

Last InspectionSeptember 2023
Inspection FrequencyEvery 24 months
OwnerU.S. Forest Service
Historical SignificanceHistorical significance is not determined
Scour Critical5 — Stable for scour
Structure Number05115600000900

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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