Structure 2743 01E 02467 · Clackamas County, OR

Or 99e (hwy 81) over Pudding River

Carries Or 99e (hwy 81) over Pudding River, 027 Mi S Canby.

Overall conditionFair

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

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating5/9 · Fair
Substructure6/9 · Satisfactory
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT711 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 5/9 · sets the ratingSubstructure 6/9

711 ft end to end: about 2.0 football fields. 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 through arch.

Built1922rebuilt 1947
Length710.6 ft216.6 m
Daily traffic15,402counted 2022
Last inspectedAugust 2023every 24 months

Location

StateOregon
CountyClackamas
Location027 Mi S Canby
CarriesOr 99e (hwy 81)
CrossesPudding River
Coordinates45.23360, -122.75020

Physical Characteristics

MaterialSteel
DesignArch - Thru
Total Length710.6 ft (216.6 m)
Max Span120.7 ft (36.8 m)
Deck Width42.0 ft (12.8 m)
Deck Area2772.5 sq m
Main Spans1
Year Built1922 (reconstructed 1947)

Traffic

Avg Daily Traffic15,402 (2022)
Truck Traffic4%
Lanes On Bridge2

Inspection & Ownership

Last InspectionAugust 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour Critical3 — Scour critical
Structure Number02743 01E 02467

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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