US Bridges

T 48 over Root River

Good

Fillmore County, Minnesota · 0.2 MI S of JCT Csah 13 · Structure no. 23K31

Built
2015
10 years old
Condition
Good
inspected April 2022
Type
Culvert
Concrete
Length
46 ft
3 main spans
Daily traffic
48
2015 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T 48 over Root River is a concrete culvert carrying T 48 over Root River 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 48 vehicles a day, projected to reach 48 by 2035. The structure is 46 ft (13.9 m) long. If it were closed, the detour would be 98.8 mi (159 km).

CarriesT 48
CrossesRoot River
Location0.2 MI S of JCT Csah 13
RouteCounty Highway 48
Coordinates43.65553, -91.77008
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.
Culvert8 Very GoodNo problems noted.
Last inspectionApril 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHL 93
Structure length46 ft (13.9 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic48 (2015)
Projected traffic48 by 2035
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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 48 over Root River built?

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

What condition is T 48 over Root River 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 2022.

How much traffic does T 48 over Root River carry?

About 48 vehicles per day (2015 count).

How long is T 48 over Root River?

The structure is 46 ft (13.9 m) long with a longest span of 14 ft (4.3 m).

Who owns T 48 over Root River?

It is owned by the Town or Township Highway Agency.