US Bridges

M 846 over Tischers Creek

Poor

St. Louis County, Minnesota · 0.2 MI W of JCT CSAH9 · Structure no. L8512

Built
1965
60 years old
Condition
Poor
inspected October 2024
Type
Culvert
Steel
Length
28 ft
2 main spans
Daily traffic
220
1986 count
Owner
City
City or Municipal Highway Agency

About this bridge

M 846 over Tischers Creek is a steel culvert carrying M 846 over Tischers Creek in St. Louis County, Minnesota. It was built in 1965, so it is 60 years old, older than the Minnesota average of 38.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 220 vehicles a day, projected to reach 220 by 2029. The structure is 28 ft (8.5 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesM 846
CrossesTischers Creek
Location0.2 MI W of JCT CSAH9
RouteCity Street 846
CountySt. Louis County
StateMinnesota
Coordinates46.82793, -92.07382
Functional classUrban Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating43.2 US tons
Inventory rating28.8 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadUnknown
Structure length28 ft (8.5 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic220 (1986)
Projected traffic220 by 2029
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was M 846 over Tischers Creek built?

It was built in 1965, making it 60 years old in 2025.

What condition is M 846 over Tischers Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2024.

How much traffic does M 846 over Tischers Creek carry?

About 220 vehicles per day (1986 count).

How long is M 846 over Tischers Creek?

The structure is 28 ft (8.5 m) long with a longest span of 10 ft (3 m).

Who owns M 846 over Tischers Creek?

It is owned by the City or Municipal Highway Agency.