US Bridges

CR 146 over Perch Creek

Good

Blue Earth County, Minnesota · 0.6 MI N of JCT TH 30 · Structure no. 07604

Built
2024
1 years old
Condition
Good
inspected December 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
56 ft
1 main span
Daily traffic
125
2024 count
Owner
County
County Highway Agency

About this bridge

CR 146 over Perch Creek is a prestressed concrete stringer/multi-beam or girder carrying CR 146 over Perch Creek in Blue Earth County, Minnesota. It was built in 2024, so it is 1 years old, younger than the Minnesota average of 38.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 125 vehicles a day, projected to reach 125 by 2044. The structure is 56 ft (17 m) long and 35 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesCR 146
CrossesPerch Creek
Location0.6 MI N of JCT TH 30
RouteCounty Highway 146
Coordinates43.90247, -94.2689
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation9: Superior to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating56.4 US tons
Inventory rating43.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length56 ft (17 m)
Longest span54 ft (16.4 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic125 (2024)
Projected traffic125 by 2044
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was CR 146 over Perch Creek built?

It was built in 2024, making it 1 years old in 2025.

What condition is CR 146 over Perch Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in December 2024.

How much traffic does CR 146 over Perch Creek carry?

About 125 vehicles per day (2024 count).

How long is CR 146 over Perch Creek?

The structure is 56 ft (17 m) long with a longest span of 54 ft (16.4 m) and a deck 35 ft wide.

Who owns CR 146 over Perch Creek?

It is owned by the County Highway Agency.