Structure 6218 001 00180 · Clackamas County, OR

Maplelane RD over Abernethy Creek

Carries Maplelane RD over Abernethy Creek, 18 Mi NE Beavercreek RD.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT80 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 6/9 · sets the rating

80 ft end to end, longest span 32 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 channel-beam bridge.

Built1932rebuilt 1964
Length80.1 ft24.4 m
Daily traffic16,500counted 2018
Last inspectedMay 2023every 24 months

Location

StateOregon
CountyClackamas
Location18 Mi NE Beavercreek RD
CarriesMaplelane RD
CrossesAbernethy Creek
Coordinates45.34311, -122.54485

Physical Characteristics

MaterialConcrete
DesignChannel Beam
Total Length80.1 ft (24.4 m)
Max Span32.2 ft (9.8 m)
Deck Width25.9 ft (7.9 m)
Deck Area192.8 sq m
Main Spans3
Year Built1932 (reconstructed 1964)

Traffic

Avg Daily Traffic16,500 (2018)
Truck Traffic26%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMay 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalUnknown
Structure Number06218 001 00180

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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