Structure 2176A002 03512 · Multnomah County, OR

I-84 (hwy 002) EB over HWY 100 & Uprr

Carries I-84 (hwy 002) EB over HWY 100 & Uprr, 3.7 Mi E Multnomah Falls.

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
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT630 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 5/9 · sets the rating

630 ft end to end, longest span 82 ft: about 1.7 football fields. 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 multi-beam bridge.

Built196066 years old
Length629.9 ft192 m
Daily traffic13,687counted 2022
Last inspectedOctober 2023every 24 months

Location

StateOregon
CountyMultnomah
Location3.7 Mi E Multnomah Falls
CarriesI-84 (hwy 002) EB
CrossesHWY 100 & Uprr
Coordinates45.60061, -122.04746

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length629.9 ft (192 m)
Max Span82.0 ft (25 m)
Deck Width34.8 ft (10.6 m)
Deck Area2035.2 sq m
Main Spans6
Year Built1960

Traffic

Avg Daily Traffic13,687 (2022)
Truck Traffic20%
Lanes On Bridge2
Lanes Under Bridge2

Inspection & Ownership

Last InspectionOctober 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number02176A002 03512

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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