Structure 62853 · Ramsey County, MN

Con 3490 over TH 280 NB

Carries Con 3490 over TH 280 NB, At Jct TH 280; 35w.

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
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT294 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

294 ft end to end, longest span 115 ft: about 4 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 multi-beam bridge.

Built197056 years old
Length294.3 ft89.7 m
Daily traffic24,185counted 2022
Last inspectedMay 2024every 12 months

Location

StateMinnesota
CountyRamsey
LocationAt Jct TH 280; 35w
CarriesCon 3490
CrossesTH 280 NB
Coordinates45.00904, -93.20212

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length294.3 ft (89.7 m)
Max Span114.5 ft (34.9 m)
Deck Width43.3 ft (13.2 m)
Deck Area1184.0 sq m
Main Spans3
Year Built1970

Traffic

Avg Daily Traffic24,185 (2022)
Lanes On Bridge2
Lanes Under Bridge1

Inspection & Ownership

Last InspectionMay 2024
Inspection FrequencyEvery 12 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number62853

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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