Structure 62505 · Ramsey County, MN

Msas 188 over Ayd Mill Rd; Cp Rail

Carries Msas 188 over Ayd Mill Rd; Cp Rail, At The Jct Ayd Mill RD.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
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 FT218 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 6/9 · sets the rating

218 ft end to end, longest span 91 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.

Built1903123 years old
Length218.2 ft66.5 m
Daily traffic7,900counted 2017
Last inspectedJune 2024every 12 months

Location

StateMinnesota
CountyRamsey
LocationAt The Jct Ayd Mill RD
CarriesMsas 188
CrossesAyd Mill Rd; Cp Rail
Coordinates44.93417, -93.15002

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length218.2 ft (66.5 m)
Max Span90.9 ft (27.7 m)
Deck Width58.4 ft (17.8 m)
Deck Area1183.7 sq m
Main Spans3
Year Built1903

Traffic

Avg Daily Traffic7,900 (2017)
Lanes On Bridge2
Lanes Under Bridge4

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 12 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number62505

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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