US Bridges

T 413 over Perch Creek

Good

Blue Earth County, Minnesota · 0.5 MI S of JCT CR 139 · Structure no. 91322

Built
1974
51 years old
Condition
Good
inspected October 2023
Type
Culvert
Concrete
Length
36 ft
2 main spans
Daily traffic
20
1969 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T 413 over Perch Creek is a concrete culvert carrying T 413 over Perch Creek in Blue Earth County, Minnesota. It was built in 1974, so it is 51 years old, older 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 20 vehicles a day, projected to reach 20 by 2029. The structure is 36 ft (11.1 m) long. If it were closed, the detour would be 3.1 mi (5 km).

CarriesT 413
CrossesPerch Creek
Location0.5 MI S of JCT CR 139
RouteCounty Highway 413
Coordinates43.91336, -94.34912
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
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
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating59.4 US tons
Inventory rating39.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length36 ft (11.1 m)
Longest span15 ft (4.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (1969)
Projected traffic20 by 2029
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

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 T 413 over Perch Creek built?

It was built in 1974, making it 51 years old in 2025.

What condition is T 413 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 October 2023.

How much traffic does T 413 over Perch Creek carry?

About 20 vehicles per day (1969 count).

How long is T 413 over Perch Creek?

The structure is 36 ft (11.1 m) long with a longest span of 15 ft (4.5 m).

Who owns T 413 over Perch Creek?

It is owned by the Town or Township Highway Agency.