Structure 39C333345800130 · Lane County, OR

Siegman Smyth Road over Owens Creek

Carries Siegman Smyth Road over Owens Creek, 019 Mi West Of Cheshire.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT69 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

69 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.

Built198046 years old
Length68.9 ft21 m
Daily traffic225counted 2020
Last inspectedOctober 2024every 24 months

Location

StateOregon
CountyLane
Location019 Mi West Of Cheshire
CarriesSiegman Smyth Road
CrossesOwens Creek
Coordinates44.20111, -123.33012

Physical Characteristics

MaterialPrestressed Concrete
DesignSlab
Total Length68.9 ft (21 m)
Max Span67.9 ft (20.7 m)
Deck Width27.9 ft (8.5 m)
Deck Area178.5 sq m
Main Spans1
Year Built1980

Traffic

Avg Daily Traffic225 (2020)
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalUnknown
Structure Number39C333345800130

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.

Nearby Bridges