Structure 17107 001C30731 · Multnomah County, OR

HWY 001 Conn over Bikepath

Carries HWY 001 Conn over Bikepath, 1.1 Mi S Of Interstate Br.

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
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT67 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 8/9

67 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.

Built199234 years old
Length66.9 ft20.4 m
Daily traffic—reported figure implausible
Last inspectedJanuary 2025every 24 months

Location

StateOregon
CountyMultnomah
Location1.1 Mi S Of Interstate Br
CarriesHWY 001 Conn
CrossesBikepath
Coordinates45.60387, -122.68125

Physical Characteristics

MaterialPrestressed Concrete
DesignSlab
Total Length66.9 ft (20.4 m)
Max Span65.9 ft (20.1 m)
Deck Width44.0 ft (13.4 m)
Deck Area273.4 sq m
Main Spans1
Year Built1992

Traffic

Avg Daily Traffic62,887 (2022)
That is about 62,887 vehicles per lane per day — beyond what any U.S. road carries (the busiest freeways run about 25,000–30,000). It is almost certainly a data-entry error in the National Bridge Inventory, so we leave this bridge out of traffic rankings.
Truck Traffic9%
Lanes On Bridge1

Inspection & Ownership

Last InspectionJanuary 2025
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number17107 001C30731

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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