US Bridges

T 161 over N Br S Fk Root River

Fair

Fillmore County, Minnesota · 0.4 MI N of JCT Csah 18 · Structure no. L9082

Built
1968
57 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
31 ft
1 main span
Daily traffic
14
1973 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T 161 over N Br S Fk Root River is a steel stringer/multi-beam or girder carrying T 161 over N Br S Fk Root River in Fillmore County, Minnesota. It was built in 1968, so it is 57 years old, older 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 14 vehicles a day, projected to reach 14 by 2029. The structure is 31 ft (9.3 m) long and 25 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesT 161
CrossesN Br S Fk Root River
Location0.4 MI N of JCT Csah 18
RouteCounty Highway 161
CountyFillmore County
StateMinnesota
Coordinates43.60011, -91.90975
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.8 US tons
Inventory rating30.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length31 ft (9.3 m)
Longest span30 ft (9 m)
Deck width25 ft (7.7 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14 (1973)
Projected traffic14 by 2029
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 161 over N Br S Fk Root River built?

It was built in 1968, making it 57 years old in 2025.

What condition is T 161 over N Br S Fk 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 April 2024.

How much traffic does T 161 over N Br S Fk Root River carry?

About 14 vehicles per day (1973 count).

How long is T 161 over N Br S Fk Root River?

The structure is 31 ft (9.3 m) long with a longest span of 30 ft (9 m) and a deck 25 ft wide.

Who owns T 161 over N Br S Fk Root River?

It is owned by the Town or Township Highway Agency.