Structure 17M001000000000 · Deschutes County, OR

Coyote RD Ng/bbrg1 over North Unit Canal

Carries Coyote RD Ng/bbrg1 over North Unit Canal, 1 Mi South Of HWY 26.

Overall conditionPoor

Set by its lowest-rated component: Deck at 4 of 9.

How ratings work
Decksets the rating4/9 · Poor
Superstructure6/9 · Satisfactory
Substructure6/9 · Satisfactory
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT61 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 4/9 · sets the ratingSuperstructure 6/9Substructure 6/9

61 ft end to end. Lengths and the car 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 through truss.

Built196066 years old
Length61.0 ft18.6 m
Daily traffic13counted 2010
Last inspectedDecember 2023every 24 months

Location

StateOregon
CountyDeschutes
Location1 Mi South Of HWY 26
CarriesCoyote RD Ng/bbrg1
CrossesNorth Unit Canal
Coordinates44.24992, -121.13048

Physical Characteristics

MaterialSteel
DesignTruss - Thru
Total Length61.0 ft (18.6 m)
Max Span60.0 ft (18.3 m)
Deck Width14.1 ft (4.3 m)
Deck Area80.0 sq m
Main Spans1
Year Built1960

Traffic

Avg Daily Traffic13 (2010)
Truck Traffic40%
Lanes On Bridge1

Inspection & Ownership

Last InspectionDecember 2023
Inspection FrequencyEvery 24 months
OwnerOther State Agencies
Historical SignificanceHistorical significance is not determined
Scour Critical8 — Stable, low risk
Structure Number17M001000000000

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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