Structure 16454 006 17943 · Umatilla County, OR

I-84 (hwy 006) EB over I-82-HWY (70)

Carries I-84 (hwy 006) EB over I-82-HWY (70), 28 Mi W Pendleton On I84.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT222 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 5/9 · sets the rating

222 ft end to end, longest span 110 ft: about 3 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.

Built198739 years old
Length222.1 ft67.7 m
Daily traffic8,168counted 2022
Last inspectedMarch 2024every 24 months

Location

StateOregon
CountyUmatilla
Location28 Mi W Pendleton On I84
CarriesI-84 (hwy 006) EB
CrossesI-82-HWY (70)
Coordinates45.79502, -119.39276

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length222.1 ft (67.7 m)
Max Span109.9 ft (33.5 m)
Deck Width44.9 ft (13.7 m)
Deck Area927.5 sq m
Main Spans3
Year Built1987

Traffic

Avg Daily Traffic8,168 (2022)
Truck Traffic25%
Lanes On Bridge2
Lanes Under Bridge2

Inspection & Ownership

Last InspectionMarch 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number16454 006 17943

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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