Structure P933 · Jefferson County, OR

IRR BIA RTE 4 over Shitike Creek

Carries IRR BIA RTE 4 over Shitike Creek, In Warm Springs.

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 overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT126 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

126 ft end to end, longest span 41 ft. 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 slab bridge.

Built1965rebuilt 1976
Length126.0 ft38.4 m
Daily traffic5,400counted 2023
Last inspectedJune 2023every 24 months

Location

StateOregon
CountyJefferson
LocationIn Warm Springs
CarriesIRR BIA RTE 4
CrossesShitike Creek
Coordinates44.76062, -121.26810

Physical Characteristics

MaterialPrestressed Concrete
DesignSlab
Total Length126.0 ft (38.4 m)
Max Span41.3 ft (12.6 m)
Deck Width38.1 ft (11.6 m)
Deck Area445.4 sq m
Main Spans3
Year Built1965 (reconstructed 1976)

Traffic

Avg Daily Traffic5,400 (2023)
Truck Traffic10%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJune 2023
Inspection FrequencyEvery 24 months
OwnerBureau of Indian Affairs
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number00000000000P933

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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