Structure 61203000001155 · Lincoln County, OR

Road over Alsea River

Carries Road over Alsea River, 0.01 Mi From Jct HWY 34.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
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
SEMI-TRUCK · 72 FT260 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 6/9 · sets the ratingSubstructure 7/9

260 ft end to end, longest span 80 ft: about 4 semi-trucks nose to tail. Lengths and the semi-truck 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.

Built196165 years old
Length259.8 ft79.2 m
Daily traffic15counted 1996
Last inspectedAugust 2023every 24 months

Location

StateOregon
CountyLincoln
Location0.01 Mi From Jct HWY 34
CarriesRoad
CrossesAlsea River
Coordinates44.38667, -123.83083

Physical Characteristics

MaterialConcrete Continuous
DesignFrame
Total Length259.8 ft (79.2 m)
Max Span80.1 ft (24.4 m)
Deck Width16.1 ft (4.9 m)
Deck Area388.1 sq m
Main Spans5
Year Built1961

Traffic

Avg Daily Traffic15 (1996)
Lanes On Bridge1

Inspection & Ownership

Last InspectionAugust 2023
Inspection FrequencyEvery 24 months
OwnerU.S. Forest Service
Historical SignificanceHistorical significance is not determined
Scour Critical5 — Stable for scour
Structure Number061203000001155

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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