Structure 1629 002 19806 · Umatilla County, OR

US 730 (hwy 2) over Juniper Pt Half Viaduct

Carries US 730 (hwy 2) over Juniper Pt Half Viaduct, 5.2 Mi W Wash State 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 FT334 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 5/9 · sets the rating

334 ft end to end, longest span 29 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.

Built193393 years old
Length334.0 ft101.8 m
Daily traffic3,403counted 2022
Last inspectedFebruary 2024every 24 months

Location

StateOregon
CountyUmatilla
Location5.2 Mi W Wash State LN
CarriesUS 730 (hwy 2)
CrossesJuniper Pt Half Viaduct
Coordinates45.94979, -119.05994

Physical Characteristics

MaterialConcrete Continuous
DesignStringer/Multi-beam
Total Length334.0 ft (101.8 m)
Max Span28.9 ft (8.8 m)
Deck Width18.7 ft (5.7 m)
Deck Area580.3 sq m
Main Spans12
Year Built1933

Traffic

Avg Daily Traffic3,403 (2022)
Truck Traffic50%
Lanes On Bridge2

Inspection & Ownership

Last InspectionFebruary 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is eligible for the National Register
Scour CriticalNot applicable
Structure Number01629 002 19806

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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