Structure 1740 02W 01319 · Multnomah County, OR

HWY 092 over Mccarty Creek

Carries HWY 092 over Mccarty Creek, 6.3 Mi W ST Johns Br.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT130 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

130 ft end to end, longest span 52 ft. 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 slab bridge.

Built196858 years old
Length129.9 ft39.6 m
Daily traffic25,192counted 2022
Last inspectedOctober 2023every 24 months

Location

StateOregon
CountyMultnomah
Location6.3 Mi W ST Johns Br
CarriesHWY 092
CrossesMccarty Creek
Coordinates45.65140, -122.85111

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length129.9 ft (39.6 m)
Max Span51.8 ft (15.8 m)
Deck Width87.3 ft (26.6 m)
Deck Area1053.4 sq m
Main Spans3
Year Built1968

Traffic

Avg Daily Traffic25,192 (2022)
Truck Traffic8%
Lanes On Bridge5

Inspection & Ownership

Last InspectionOctober 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number01740 02W 01319

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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