Structure 5583 · Ramsey County, MN

Csah 51 over Bnsf Rr

Carries Csah 51 over Bnsf Rr, 0.8 Mi N Of Univ AVE.

Overall conditionFair

Set by its lowest-rated component: Superstructure at 5 of 9.

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating5/9 · Fair
Substructure6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT251 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 5/9 · sets the ratingSubstructure 6/9

251 ft end to end, longest span 66 ft: about 3 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.

Built193690 years old
Length251.3 ft76.6 m
Daily traffic21,700counted 2018
Last inspectedOctober 2024every 12 months

Location

StateMinnesota
CountyRamsey
Location0.8 Mi N Of Univ AVE
CarriesCsah 51
CrossesBnsf Rr
Coordinates44.96741, -93.14659

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length251.3 ft (76.6 m)
Max Span65.9 ft (20.1 m)
Deck Width62.3 ft (19 m)
Deck Area1455.4 sq m
Main Spans5
Year Built1936

Traffic

Avg Daily Traffic21,700 (2018)
Lanes On Bridge4

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 12 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number5583

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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