Structure 60704000001040 · Harney County, OR

Forest RD 45 over Silver Creek

Carries Forest RD 45 over Silver Creek, NW Of Delintment Lk.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 8 of 9.

How ratings work
Decksets the rating8/9 · Very Good
Superstructuresets the rating8/9 · Very Good
Substructuresets the rating8/9 · Very Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT46 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 8/9

46 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 slab bridge.

Built200026 years old
Length45.9 ft14 m
Daily traffic25counted 2006
Last inspectedSeptember 2024every 24 months

Location

StateOregon
CountyHarney
LocationNW Of Delintment Lk
CarriesForest RD 45
CrossesSilver Creek
Coordinates43.89256, -119.68223

Physical Characteristics

MaterialPrestressed Concrete
DesignSlab
Total Length45.9 ft (14 m)
Max Span44.9 ft (13.7 m)
Deck Width16.1 ft (4.9 m)
Deck Area68.6 sq m
Main Spans1
Year Built2000

Traffic

Avg Daily Traffic25 (2006)
Lanes On Bridge1

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 24 months
OwnerU.S. Forest Service
Historical SignificanceHistorical significance is not determined
Scour Critical5 — Stable for scour
Structure Number060704000001040

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.