Structure 21305 001 15454 · Douglas County, OR

I-5 (hwy 001) over Elkhead RD

Carries I-5 (hwy 001) over Elkhead RD, 04.5 Mi N Of HWY 236 Jct.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure8/9 · Very Good
Substructuresets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT75 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 8/9Substructure 6/9 · sets the rating

75 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.

Built201016 years old
Length75.1 ft22.9 m
Daily traffic22,467counted 2022
Last inspectedFebruary 2023every 24 months

Location

StateOregon
CountyDouglas
Location04.5 Mi N Of HWY 236 Jct
CarriesI-5 (hwy 001)
CrossesElkhead RD
Coordinates43.60721, -123.22252

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length75.1 ft (22.9 m)
Max Span75.1 ft (22.9 m)
Deck Width93.5 ft (28.5 m)
Deck Area652.6 sq m
Main Spans1
Year Built2010

Traffic

Avg Daily Traffic22,467 (2022)
Truck Traffic25%
Lanes On Bridge4
Lanes Under Bridge2

Inspection & Ownership

Last InspectionFebruary 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number21305 001 15454

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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