Structure 39C446438700008 · Lane County, OR

Austa RD over Wildcat Creek

Carries Austa RD over Wildcat Creek, At Siuslaw R Wildcat Conf.

Overall conditionFair

Set by its lowest-rated component: Substructure at 5 of 9.

How ratings work
Deck6/9 · Satisfactory
Superstructure6/9 · Satisfactory
Substructuresets the rating5/9 · Fair
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT161 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 5/9 · sets the rating

161 ft end to end: about 2 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 through truss.

Built1925rebuilt 2016
Length161.1 ft49.1 m
Daily traffic81counted 2020
Last inspectedAugust 2024every 12 months

Location

StateOregon
CountyLane
LocationAt Siuslaw R Wildcat Conf
CarriesAusta RD
CrossesWildcat Creek
Coordinates44.00301, -123.65499

Physical Characteristics

MaterialWood or Timber
DesignTruss - Thru
Total Length161.1 ft (49.1 m)
Max Span75.1 ft (22.9 m)
Deck Width15.1 ft (4.6 m)
Deck Area225.9 sq m
Main Spans1
Year Built1925 (reconstructed 2016)

Traffic

Avg Daily Traffic81 (2020)
Lanes On Bridge1

Inspection & Ownership

Last InspectionAugust 2024
Inspection FrequencyEvery 12 months
OwnerCounty Highway Agency
Historical SignificanceBridge is on the National Register of Historic Places
Scour CriticalUnknown
Structure Number39C446438700008

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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