US Bridges

T 408 over Kedron Brook

Good

Fillmore County, Minnesota · 0.2 MI S of JCT Csah 2 · Structure no. 23588

Built
2015
10 years old
Condition
Good
inspected April 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
74 ft
1 main span
Daily traffic
49
2013 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T 408 over Kedron Brook is a prestressed concrete stringer/multi-beam or girder carrying T 408 over Kedron Brook in Fillmore County, Minnesota. It was built in 2015, so it is 10 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 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 49 vehicles a day, projected to reach 42 by 2033. The structure is 74 ft (22.5 m) long and 27 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesT 408
CrossesKedron Brook
Location0.2 MI S of JCT Csah 2
RouteCounty Highway 408
Coordinates43.80173, -92.40947
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length74 ft (22.5 m)
Longest span70 ft (21.3 m)
Deck width27 ft (8.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic49 (2013)
Projected traffic42 by 2033
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 408 over Kedron Brook built?

It was built in 2015, making it 10 years old in 2025.

What condition is T 408 over Kedron Brook 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 April 2024.

How much traffic does T 408 over Kedron Brook carry?

About 49 vehicles per day (2013 count).

How long is T 408 over Kedron Brook?

The structure is 74 ft (22.5 m) long with a longest span of 70 ft (21.3 m) and a deck 27 ft wide.

Who owns T 408 over Kedron Brook?

It is owned by the Town or Township Highway Agency.