US Bridges

T 131 over N Br Root River

Fair

Mower County, Minnesota · 0.9 MI E of JCT Csah 20 · Structure no. 97616

Built
1993
32 years old
Condition
Fair
inspected September 2023
Type
Culvert
Concrete
Length
29 ft
1 main span
Daily traffic
24
1986 count
Owner
County
County Highway Agency

About this bridge

T 131 over N Br Root River is a concrete culvert carrying T 131 over N Br Root River in Mower County, Minnesota. It was built in 1993, so it is 32 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 24 vehicles a day, projected to reach 24 by 2029. The structure is 29 ft (8.9 m) long. If it were closed, the detour would be 3.1 mi (5 km).

CarriesT 131
CrossesN Br Root River
Location0.9 MI E of JCT Csah 20
RouteCounty Highway 131
Coordinates43.76125, -92.77101
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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.4 US tons
Inventory rating39.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length29 ft (8.9 m)
Longest span11 ft (3.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic24 (1986)
Projected traffic24 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

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 T 131 over N Br Root River built?

It was built in 1993, making it 32 years old in 2025.

What condition is T 131 over N Br Root River 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 September 2023.

How much traffic does T 131 over N Br Root River carry?

About 24 vehicles per day (1986 count).

How long is T 131 over N Br Root River?

The structure is 29 ft (8.9 m) long with a longest span of 11 ft (3.5 m).

Who owns T 131 over N Br Root River?

It is owned by the County Highway Agency.