US Bridges

M 45 over Crooked Creek

PoorPosted for load

Crow Wing County, Minnesota · 1.7 MI W of JCT TH 6 · Structure no. L2877

Built
1960
65 years old
Condition
Poor
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
44 ft
1 main span
Daily traffic
15
1986 count
Owner
City
City or Municipal Highway Agency

About this bridge

M 45 over Crooked Creek is a steel stringer/multi-beam or girder carrying M 45 over Crooked Creek in Crow Wing County, Minnesota. It was built in 1960, so it is 65 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. Its operating status is: posted for load restriction.

It carries about 15 vehicles a day, projected to reach 15 by 2029. The structure is 44 ft (13.3 m) long and 20 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesM 45
CrossesCrooked Creek
Location1.7 MI W of JCT TH 6
RouteCity Street 45
Coordinates46.78124, -93.99807
Functional classRural 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating23.6 US tons
Inventory rating18.2 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans1
Design loadUnknown
Structure length44 ft (13.3 m)
Longest span40 ft (12.2 m)
Deck width20 ft (6 m)
Roadway width19 ft (5.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15 (1986)
Projected traffic15 by 2029
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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$939.7 million (2029 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was M 45 over Crooked Creek built?

It was built in 1960, making it 65 years old in 2025.

What condition is M 45 over Crooked 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 45 over Crooked Creek carry?

About 15 vehicles per day (1986 count).

How long is M 45 over Crooked Creek?

The structure is 44 ft (13.3 m) long with a longest span of 40 ft (12.2 m) and a deck 20 ft wide.

Who owns M 45 over Crooked Creek?

It is owned by the City or Municipal Highway Agency.