US Bridges

T 75 over Mayo Creek

Fair

Cass County, Minnesota · 0.2 MI S of JCT Csah 17 · Structure no. 97497

Built
1993
32 years old
Condition
Fair
inspected September 2023
Type
Culvert
Steel
Length
40 ft
3 main spans
Daily traffic
50
1992 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T 75 over Mayo Creek is a steel culvert carrying T 75 over Mayo Creek in Cass County, Minnesota. It was built in 1993, so it is 32 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 50 vehicles a day, projected to reach 50 by 2029. The structure is 40 ft (12.2 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesT 75
CrossesMayo Creek
Location0.2 MI S of JCT Csah 17
RouteCounty Highway 75
CountyCass County
StateMinnesota
Coordinates46.60553, -94.35186
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating34.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans3
Design loadUnknown
Structure length40 ft (12.2 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (1992)
Projected traffic50 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 75 over Mayo Creek built?

It was built in 1993, making it 32 years old in 2025.

What condition is T 75 over Mayo Creek 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 September 2023.

How much traffic does T 75 over Mayo Creek carry?

About 50 vehicles per day (1992 count).

How long is T 75 over Mayo Creek?

The structure is 40 ft (12.2 m) long with a longest span of 10 ft (3 m).

Who owns T 75 over Mayo Creek?

It is owned by the Town or Township Highway Agency.