Structure 5492 068 01652 · Marion County, OR

French Prairie RD over Champoeg CR

Carries French Prairie RD over Champoeg CR, Mp #68 0.25 S CR 501.

Overall conditionFair

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

How ratings work
Deck8/9 · Very Good
Superstructure8/9 · Very Good
Substructuresets the rating5/9 · Fair
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
25 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 5/9 · sets the rating

25 ft end to end. Lengths are drawn to scale; at this length a semi-truck would be a speck. 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 tee-beam bridge.

Built195571 years old
Length24.9 ft7.6 m
Daily traffic31,900counted 2018
Last inspectedAugust 2024every 24 months

Location

StateOregon
CountyMarion
LocationMp #68 0.25 S CR 501
CarriesFrench Prairie RD
CrossesChampoeg CR
Coordinates45.16304, -122.94750

Physical Characteristics

MaterialConcrete
DesignTee Beam
Total Length24.9 ft (7.6 m)
Max Span22.0 ft (6.7 m)
Deck Width31.5 ft (9.6 m)
Deck Area73.0 sq m
Main Spans1
Year Built1955

Traffic

Avg Daily Traffic31,900 (2018)
Truck Traffic2%
Lanes On Bridge2

Inspection & Ownership

Last InspectionAugust 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalUnknown
Structure Number05492 068 01652

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