US Bridges

CR 168 over Mayo Brook

Fair

Crow Wing County, Minnesota · 0.8 MI W of JCT TH 371 · Structure no. 18521

Built
1995
30 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
67 ft
1 main span
Daily traffic
1,150
2015 count
Owner
County
County Highway Agency

About this bridge

CR 168 over Mayo Brook is a prestressed concrete stringer/multi-beam or girder carrying CR 168 over Mayo Brook in Crow Wing County, Minnesota. It was built in 1995, so it is 30 years old, younger than the Minnesota average of 38.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 1,150 vehicles a day, projected to reach 1,150 by 2039. The structure is 67 ft (20.3 m) long and 39 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesCR 168
CrossesMayo Brook
Location0.8 MI W of JCT TH 371
RouteCounty Highway 168
CountyCrow Wing County
StateMinnesota
Coordinates46.57329, -94.3261
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating76.3 US tons
Inventory rating46.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length67 ft (20.3 m)
Longest span65 ft (19.7 m)
Deck width39 ft (12 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,150 (2015)
Projected traffic1,150 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 CR 168 over Mayo Brook built?

It was built in 1995, making it 30 years old in 2025.

What condition is CR 168 over Mayo Brook in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2023.

How much traffic does CR 168 over Mayo Brook carry?

About 1,150 vehicles per day (2015 count).

How long is CR 168 over Mayo Brook?

The structure is 67 ft (20.3 m) long with a longest span of 65 ft (19.7 m) and a deck 39 ft wide.

Who owns CR 168 over Mayo Brook?

It is owned by the County Highway Agency.