Structure 61202000001200 · Lane County, OR

Road over North Fork Siuslaw River

Carries Road over North Fork Siuslaw River, No Data Entered.

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 overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT44 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 7/9

44 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 rigid-frame bridge.

Built195076 years old
Length44.3 ft13.5 m
Daily traffic20counted 1996
Last inspectedJune 2024every 24 months

Location

StateOregon
CountyLane
LocationNo Data Entered
CarriesRoad
CrossesNorth Fork Siuslaw River
Coordinates44.12655, -123.91291

Physical Characteristics

MaterialConcrete Continuous
DesignFrame
Total Length44.3 ft (13.5 m)
Max Span42.0 ft (12.8 m)
Deck Width16.1 ft (4.9 m)
Deck Area66.2 sq m
Main Spans1
Year Built1950

Traffic

Avg Daily Traffic20 (1996)
Lanes On Bridge1

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 24 months
OwnerU.S. Forest Service
Historical SignificanceHistorical significance is not determined
Scour Critical5 — Stable for scour
Structure Number061202000001200

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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