US Bridges

T 100 over Little Cannon River

Fair

Goodhue County, Minnesota · 0.2 MI N of JCT Csah 24 · Structure no. 25553

Built
1989
36 years old
Condition
Fair
inspected October 2024
Type
Slab
Concrete Continuous
Length
114 ft
3 main spans
Daily traffic
36
1988 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T 100 over Little Cannon River is a concrete continuous slab carrying T 100 over Little Cannon River in Goodhue County, Minnesota. It was built in 1989, so it is 36 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 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 36 vehicles a day, projected to reach 36 by 2029. The structure is 114 ft (34.7 m) long and 29 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesT 100
CrossesLittle Cannon River
Location0.2 MI N of JCT Csah 24
RouteCounty Highway 100
Coordinates44.47369, -92.93152
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 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 alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating50.8 US tons
Inventory rating31 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length114 ft (34.7 m)
Longest span43 ft (13 m)
Deck width29 ft (8.9 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic36 (1988)
Projected traffic36 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 100 over Little Cannon River built?

It was built in 1989, making it 36 years old in 2025.

What condition is T 100 over Little Cannon 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 100 over Little Cannon River carry?

About 36 vehicles per day (1988 count).

How long is T 100 over Little Cannon River?

The structure is 114 ft (34.7 m) long with a longest span of 43 ft (13 m) and a deck 29 ft wide.

Who owns T 100 over Little Cannon River?

It is owned by the Town or Township Highway Agency.