Structure 6397 000 035 · Clackamas County, OR

Henry Creek RD over Henry Creek

Carries Henry Creek RD over Henry Creek, 00.36 Mi N Of HWY 26.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
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
24 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9Substructure 5/9 · sets the rating

24 ft end to end. Lengths are drawn to scale; at this length a semi-truck would be a speck. 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.

Built195967 years old
Length24.0 ft7.3 m
Daily traffic41counted 2020
Last inspectedJuly 2024every 24 months

Location

StateOregon
CountyClackamas
Location00.36 Mi N Of HWY 26
CarriesHenry Creek RD
CrossesHenry Creek
Coordinates45.32980, -121.90450

Physical Characteristics

MaterialConcrete
DesignChannel Beam
Total Length24.0 ft (7.3 m)
Max Span24.0 ft (7.3 m)
Deck Width19.0 ft (5.8 m)
Deck Area42.3 sq m
Main Spans1
Year Built1959

Traffic

Avg Daily Traffic41 (2020)
Truck Traffic9%
Lanes On Bridge1

Inspection & Ownership

Last InspectionJuly 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical3 — Scour critical
Structure Number06397 000 035

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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