US Bridges

T 180 over Little Cobb River (cd #8

Fair

Waseca County, Minnesota · 0.3 MI N of JCT TH 30 · Structure no. 95790

Built
1995
30 years old
Condition
Fair
inspected November 2023
Type
Culvert
Concrete
Length
26 ft
2 main spans
Daily traffic
40
1995 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T 180 over Little Cobb River (cd #8 is a concrete culvert carrying T 180 over Little Cobb River (cd #8 in Waseca County, Minnesota. It was built in 1995, so it is 30 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 5 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 40 vehicles a day, projected to reach 40 by 2029. The structure is 26 ft (8 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesT 180
CrossesLittle Cobb River (cd #8
Location0.3 MI N of JCT TH 30
RouteCounty Highway 180
CountyWaseca County
StateMinnesota
Coordinates43.89579, -93.67754
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.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.8 US tons
Inventory rating43.2 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 25 or greater
Structure length26 ft (8 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 traffic40 (1995)
Projected traffic40 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

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 180 over Little Cobb River (cd #8 built?

It was built in 1995, making it 30 years old in 2025.

What condition is T 180 over Little Cobb River (cd #8 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 November 2023.

How much traffic does T 180 over Little Cobb River (cd #8 carry?

About 40 vehicles per day (1995 count).

How long is T 180 over Little Cobb River (cd #8?

The structure is 26 ft (8 m) long with a longest span of 11 ft (3.5 m).

Who owns T 180 over Little Cobb River (cd #8?

It is owned by the Town or Township Highway Agency.