Structure 9492 · Ramsey County, MN

Unm 88 over I 35w

Carries Unm 88 over I 35w, At The Jct TH 35w; 88.

Overall conditionPoor

Set by its lowest-rated component: Superstructure at 4 of 9.

How ratings work
Deck5/9 · Fair
Superstructuresets the rating4/9 · Poor
Substructure5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT387 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 4/9 · sets the ratingSubstructure 5/9

387 ft end to end, longest span 123 ft: about 5 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 box-beam bridge.

Built196462 years old
Length387.5 ft118.1 m
Daily traffic4,151counted 2022
Last inspectedSeptember 2024every 12 months

Location

StateMinnesota
CountyRamsey
LocationAt The Jct TH 35w; 88
CarriesUnm 88
CrossesI 35w
Coordinates45.04036, -93.18961

Physical Characteristics

MaterialConcrete Continuous
DesignBox Beam - Multiple
Total Length387.5 ft (118.1 m)
Max Span123.4 ft (37.6 m)
Deck Width35.4 ft (10.8 m)
Deck Area1275.5 sq m
Main Spans4
Year Built1964

Traffic

Avg Daily Traffic4,151 (2022)
Truck Traffic10%
Lanes On Bridge2
Lanes Under Bridge6

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 12 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number9492

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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