Structure 432 01W 10558 · Lane County, OR

Or 99w (hwy 91) over Crow Creek

Carries Or 99w (hwy 91) over Crow Creek, 009 Mi S Benton Lane Co L.

Overall conditionFair

Set by its lowest-rated component: Substructure at 5 of 9.

How ratings work
Deck6/9 · Satisfactory
Superstructure6/9 · Satisfactory
Substructuresets the rating5/9 · Fair
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT41 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 5/9 · sets the rating

41 ft end to end, longest span 20 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 tee-beam bridge.

Built1921rebuilt 1959
Length41.3 ft12.6 m
Daily traffic6,255counted 2022
Last inspectedApril 2023every 24 months

Location

StateOregon
CountyLane
Location009 Mi S Benton Lane Co L
CarriesOr 99w (hwy 91)
CrossesCrow Creek
Coordinates44.27010, -123.23478

Physical Characteristics

MaterialConcrete Continuous
DesignTee Beam
Total Length41.3 ft (12.6 m)
Max Span20.0 ft (6.1 m)
Deck Width42.0 ft (12.8 m)
Deck Area161.3 sq m
Main Spans2
Year Built1921 (reconstructed 1959)

Traffic

Avg Daily Traffic6,255 (2022)
Truck Traffic17%
Lanes On Bridge2

Inspection & Ownership

Last InspectionApril 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical3 — Scour critical
Structure Number00432 01W 10558

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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