US Bridges

T 75 over CO Ditch # 11

Fair

Martin County, Minnesota · 1.0 MI S of JCT Csah 22 · Structure no. L9344

Built
1970
55 years old
Condition
Fair
inspected October 2024
Type
Channel Beam
Prestressed Concrete
Length
42 ft
2 main spans
Daily traffic
22
1986 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T 75 over CO Ditch # 11 is a prestressed concrete channel beam carrying T 75 over CO Ditch # 11 in Martin County, Minnesota. It was built in 1970, so it is 55 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.

It carries about 22 vehicles a day, projected to reach 22 by 2029. The structure is 42 ft (12.8 m) long and 22 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesT 75
CrossesCO Ditch # 11
Location1.0 MI S of JCT Csah 22
RouteCounty Highway 75
CountyMartin County
StateMinnesota
Coordinates43.59656, -94.67427
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: 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 rating109.8 US tons
Inventory rating74.8 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length42 ft (12.8 m)
Longest span21 ft (6.4 m)
Deck width22 ft (6.8 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic22 (1986)
Projected traffic22 by 2029
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 CO Ditch # 11 built?

It was built in 1970, making it 55 years old in 2025.

What condition is T 75 over CO Ditch # 11 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 75 over CO Ditch # 11 carry?

About 22 vehicles per day (1986 count).

How long is T 75 over CO Ditch # 11?

The structure is 42 ft (12.8 m) long with a longest span of 21 ft (6.4 m) and a deck 22 ft wide.

Who owns T 75 over CO Ditch # 11?

It is owned by the Town or Township Highway Agency.