Structure 13492 174 00847 · Clackamas County, OR

Or 212 (hwy 174) over HWY 26

Carries Or 212 (hwy 174) over HWY 26, 2.8 Mi E Mult-clack Co LN.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT351 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

351 ft end to end, longest span 144 ft: about 5 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 multi-beam bridge.

Built197353 years old
Length351.4 ft107.1 m
Daily traffic12,206counted 2022
Last inspectedMay 2023every 24 months

Location

StateOregon
CountyClackamas
Location2.8 Mi E Mult-clack Co LN
CarriesOr 212 (hwy 174)
CrossesHWY 26
Coordinates45.43266, -122.34336

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length351.4 ft (107.1 m)
Max Span144.0 ft (43.9 m)
Deck Width59.4 ft (18.1 m)
Deck Area1938.5 sq m
Main Spans2
Year Built1973

Traffic

Avg Daily Traffic12,206 (2022)
Truck Traffic6%
Lanes On Bridge2
Lanes Under Bridge5

Inspection & Ownership

Last InspectionMay 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number13492 174 00847

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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