Structure 18408 002 07116 · Wasco County, OR

I-84 (hwy 002) over Uprr

Carries I-84 (hwy 002) over Uprr, 111 Mi W The Dalles.

Overall conditionGood

Set by its lowest-rated component: Deck and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructure8/9 · Very Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT354 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 7/9 · sets the rating

354 ft end to end, longest span 141 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.

Built200125 years old
Length354.0 ft107.9 m
Daily traffic25,052counted 2022
Last inspectedMay 2023every 24 months

Location

StateOregon
CountyWasco
Location111 Mi W The Dalles
CarriesI-84 (hwy 002)
CrossesUprr
Coordinates45.69553, -121.37886

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length354.0 ft (107.9 m)
Max Span140.7 ft (42.9 m)
Deck Width91.9 ft (28 m)
Deck Area3021.2 sq m
Main Spans3
Year Built2001

Traffic

Avg Daily Traffic25,052 (2022)
Truck Traffic24%
Lanes On Bridge4

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 Number18408 002 07116

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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