US Bridges

T 1173 over Toad River

FairPosted for load

Otter Tail County, Minnesota · 0.8 MI W of JCT Csah 13 · Structure no. 91798

Built
1980
45 years old
Condition
Fair
inspected October 2024
Type
Culvert
Steel
Length
30 ft
2 main spans
Daily traffic
21
1986 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T 1173 over Toad River is a steel culvert carrying T 1173 over Toad River in Otter Tail County, Minnesota. It was built in 1980, so it is 45 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 5 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 21 vehicles a day, projected to reach 21 by 2029. The structure is 30 ft (9 m) long. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesT 1173
CrossesToad River
Location0.8 MI W of JCT Csah 13
RouteCounty Highway 1173
CountyOtter Tail County
StateMinnesota
Coordinates46.71613, -95.53984
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 protection7 GoodSome minor problems.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating16.2 US tons
Inventory rating12.6 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadUnknown
Structure length30 ft (9 m)
Longest span13 ft (4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21 (1986)
Projected traffic21 by 2029
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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$127.7 million
NavigationNo navigation control on waterway

Frequently asked questions

When was T 1173 over Toad River built?

It was built in 1980, making it 45 years old in 2025.

What condition is T 1173 over Toad 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 2024.

How much traffic does T 1173 over Toad River carry?

About 21 vehicles per day (1986 count).

How long is T 1173 over Toad River?

The structure is 30 ft (9 m) long with a longest span of 13 ft (4 m).

Who owns T 1173 over Toad River?

It is owned by the Town or Township Highway Agency.