Structure 51052000001022 · Del Norte County, CA

No Data Entered over Bluff Creek

Carries No Data Entered over Bluff Creek, S22 T12n R4e.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure8/9 · Very Good
Substructure7/9 · Good
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT110 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 8/9Substructure 7/9

110 ft end to end, longest span 70 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 multi-beam bridge.

Built197650 years old
Length109.9 ft33.5 m
Daily traffic501 lanes
Last inspectedOctober 2021every 24 months

Location

StateCalifornia
CountyDel Norte
LocationS22 T12n R4e
CarriesNo Data Entered
CrossesBluff Creek
Coordinates41.41769, -123.72183

Physical Characteristics

MaterialWood or Timber
DesignStringer/Multi-beam
Total Length109.9 ft (33.5 m)
Max Span69.9 ft (21.3 m)
Deck Width16.1 ft (4.9 m)
Deck Area164.2 sq m
Main Spans3
Year Built1976

Traffic

Avg Daily Traffic50
Lanes On Bridge1

Inspection & Ownership

Last InspectionOctober 2021
Inspection FrequencyEvery 24 months
OwnerU.S. Forest Service
Historical SignificanceHistorical significance is not determined
Scour Critical4 — Foundations need monitoring
Structure Number051052000001022

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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