US Bridges

T 122 over N Fk Watonwan River

Good

Watonwan County, Minnesota · 0.7 MI N of JCT Csah 1 · Structure no. 83522

Built
1987
38 years old
Condition
Good
inspected October 2023
Type
Slab
Wood or Timber
Length
90 ft
3 main spans
Daily traffic
35
1985 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T 122 over N Fk Watonwan River is a wood or timber slab carrying T 122 over N Fk Watonwan River in Watonwan County, Minnesota. It was built in 1987, so it is 38 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 35 vehicles a day, projected to reach 35 by 2029. The structure is 90 ft (27.4 m) long and 30 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesT 122
CrossesN Fk Watonwan River
Location0.7 MI N of JCT Csah 1
RouteCounty Highway 122
Coordinates44.09083, -94.69968
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
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
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58.3 US tons
Inventory rating41.2 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans3
Design loadHS 20
Structure length90 ft (27.4 m)
Longest span30 ft (9.1 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35 (1985)
Projected traffic35 by 2029
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 122 over N Fk Watonwan River built?

It was built in 1987, making it 38 years old in 2025.

What condition is T 122 over N Fk Watonwan 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 October 2023.

How much traffic does T 122 over N Fk Watonwan River carry?

About 35 vehicles per day (1985 count).

How long is T 122 over N Fk Watonwan River?

The structure is 90 ft (27.4 m) long with a longest span of 30 ft (9.1 m) and a deck 30 ft wide.

Who owns T 122 over N Fk Watonwan River?

It is owned by the Town or Township Highway Agency.