Structure 38007 · Lake County, MN

Mn 61 over Baptism River; Park RD

Carries Mn 61 over Baptism River; Park RD, 1.1 Mi SW Of Jct TH 1.

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
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT573 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 5/9 · sets the ratingSubstructure 6/9

573 ft end to end, longest span 155 ft: about 1.6 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.

Built196858 years old
Length572.5 ft174.5 m
Daily traffic3,540counted 2022
Last inspectedAugust 2023every 24 months

Location

StateMinnesota
CountyLake
Location1.1 Mi SW Of Jct TH 1
CarriesMn 61
CrossesBaptism River; Park RD
Coordinates47.33748, -91.20025

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length572.5 ft (174.5 m)
Max Span154.5 ft (47.1 m)
Deck Width57.1 ft (17.4 m)
Deck Area3036.3 sq m
Main Spans4
Year Built1968

Traffic

Avg Daily Traffic3,540 (2022)
Truck Traffic11%
Lanes On Bridge2
Lanes Under Bridge2

Inspection & Ownership

Last InspectionAugust 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number38007

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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