Structure 91333 · Hennepin County, MN

Csah 152 over Bassett Creek Tunnel

Carries Csah 152 over Bassett Creek Tunnel, 0.9 Mi NW Of Jct Henn Av.

Overall conditionPoor

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

How ratings work
Culvertsets the rating4/9 · Poor
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT31 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 4/9

A culvert 31 ft across. Lengths and the car 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, so those are drawn as typical for a culvert.

Built1923103 years old
Length30.8 ft9.4 m
Daily traffic14,987counted 2022
Last inspectedSeptember 2024every 12 months

Location

StateMinnesota
CountyHennepin
Location0.9 Mi NW Of Jct Henn Av
CarriesCsah 152
CrossesBassett Creek Tunnel
Coordinates44.98886, -93.27861

Physical Characteristics

MaterialMasonry
DesignCulvert
Total Length30.8 ft (9.4 m)
Max Span21.3 ft (6.5 m)
Deck Area218.1 sq m
Main Spans1
Year Built1923

Traffic

Avg Daily Traffic14,987 (2022)
Truck Traffic7%
Lanes On Bridge6

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 12 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number91333

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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