Structure 1630A002 19903 · Umatilla County, OR

US 730 (hwy 002) over Juniper Canyon Creek

Carries US 730 (hwy 002) over Juniper Canyon Creek, 4.3mi W Wash State LN.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT244 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

244 ft end to end, longest span 90 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 girder bridge.

Built195175 years old
Length244.1 ft74.4 m
Daily traffic3,403counted 2022
Last inspectedSeptember 2024every 24 months

Location

StateOregon
CountyUmatilla
Location4.3mi W Wash State LN
CarriesUS 730 (hwy 002)
CrossesJuniper Canyon Creek
Coordinates45.95810, -119.03710

Physical Characteristics

MaterialSteel Continuous
DesignGirder and Floorbeam
Total Length244.1 ft (74.4 m)
Max Span89.9 ft (27.4 m)
Deck Width39.4 ft (12 m)
Deck Area892.8 sq m
Main Spans3
Year Built1951

Traffic

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

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical8 — Stable, low risk
Structure Number01630A002 19903

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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