US Bridges

T 76 over Watonwan River

FairPosted for load

Watonwan County, Minnesota · 0.6 MI N of JCT CR 116 · Structure no. 83508

Built
1977
48 years old
Condition
Fair
inspected October 2023
Type
Slab
Wood or Timber
Length
78 ft
3 main spans
Daily traffic
25
1985 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T 76 over Watonwan River is a wood or timber slab carrying T 76 over Watonwan River in Watonwan County, Minnesota. It was built in 1977, so it is 48 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. Its operating status is: posted for load restriction.

It carries about 25 vehicles a day, projected to reach 25 by 2029. The structure is 78 ft (23.8 m) long and 26 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesT 76
CrossesWatonwan River
Location0.6 MI N of JCT CR 116
RouteCounty Highway 76
Coordinates44.02996, -94.82926
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusPosted for load 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 alignment7: Better than present minimum criteria
Operating rating36.4 US tons
Inventory rating25.9 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans3
Design loadHS 20
Structure length78 ft (23.8 m)
Longest span26 ft (7.9 m)
Deck width26 ft (8 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (1985)
Projected traffic25 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 76 over Watonwan River built?

It was built in 1977, making it 48 years old in 2025.

What condition is T 76 over Watonwan 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 October 2023.

How much traffic does T 76 over Watonwan River carry?

About 25 vehicles per day (1985 count).

How long is T 76 over Watonwan River?

The structure is 78 ft (23.8 m) long with a longest span of 26 ft (7.9 m) and a deck 26 ft wide.

Who owns T 76 over Watonwan River?

It is owned by the Town or Township Highway Agency.