Structure 21367 000 00000 · Tillamook County, OR

Odfw Road over Alder Creek

Carries Odfw Road over Alder Creek, Off HWY 032 At Mp 5.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructuresets the rating6/9 · Satisfactory
Substructure8/9 · Very Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT53 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 8/9

53 ft end to end. 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 multi-beam bridge.

Built200917 years old
Length53.5 ft16.3 m
Daily traffic5counted 2010
Last inspectedSeptember 2024every 12 months

Location

StateOregon
CountyTillamook
LocationOff HWY 032 At Mp 5
CarriesOdfw Road
CrossesAlder Creek
Coordinates45.17020, -123.80346

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length53.5 ft (16.3 m)
Max Span53.5 ft (16.3 m)
Deck Width16.1 ft (4.9 m)
Deck Area79.9 sq m
Main Spans1
Year Built2009

Traffic

Avg Daily Traffic5 (2010)
Truck Traffic1%
Lanes On Bridge1

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 12 months
OwnerOther State Agencies
Historical SignificanceHistorical significance is not determined
Scour CriticalUnknown
Structure Number21367 000 00000

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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