Structure 9314 054 01256 · Umatilla County, OR

US 395 (hwy 054) over I-84 (hwy 6)

Carries US 395 (hwy 054) over I-84 (hwy 6), 11.5 Mi. E. Morrow Co LN.

Overall conditionFair

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

How ratings work
Deck6/9 · Satisfactory
Superstructure6/9 · Satisfactory
Substructuresets the rating5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT420 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 5/9 · sets the rating

420 ft end to end, longest span 144 ft: about 6 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 box-beam bridge.

Built1968rebuilt 1989
Length419.9 ft128 m
Daily traffic9,887counted 2022
Last inspectedSeptember 2024every 24 months

Location

StateOregon
CountyUmatilla
Location11.5 Mi. E. Morrow Co LN
CarriesUS 395 (hwy 054)
CrossesI-84 (hwy 6)
Coordinates45.76291, -119.20401

Physical Characteristics

MaterialConcrete Continuous
DesignBox Beam - Multiple
Total Length419.9 ft (128 m)
Max Span144.0 ft (43.9 m)
Deck Width59.1 ft (18 m)
Deck Area2,304 sq m
Main Spans4
Year Built1968 (reconstructed 1989)

Traffic

Avg Daily Traffic9,887 (2022)
Truck Traffic8%
Lanes On Bridge3
Lanes Under Bridge4

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalNot applicable
Structure Number09314 054 01256

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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