US Bridges

T 188 over CO Ditch # 1

PoorPosted for load

Martin County, Minnesota · 1.5 MI E of JCT Csah 7 · Structure no. 934

Built
1938
87 years old
Condition
Poor
inspected September 2024
Type
Girder and Floorbeam System
Concrete Continuous
Length
26 ft
2 main spans
Daily traffic
88
1986 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T 188 over CO Ditch # 1 is a concrete continuous girder and floorbeam system carrying T 188 over CO Ditch # 1 in Martin County, Minnesota. It was built in 1938, so it is 87 years old, older than the Minnesota average of 38.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 88 vehicles a day, projected to reach 88 by 2029. The structure is 26 ft (8 m) long and 24 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesT 188
CrossesCO Ditch # 1
Location1.5 MI E of JCT Csah 7
RouteCounty Highway 188
Coordinates43.66065, -94.7649
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionSeptember 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
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 rating33.5 US tons
Inventory rating19.8 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length26 ft (8 m)
Longest span12 ft (3.7 m)
Deck width24 ft (7.4 m)
Roadway width23 ft (7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic88 (1986)
Projected traffic88 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$63 million
NavigationNo navigation control on waterway

Frequently asked questions

When was T 188 over CO Ditch # 1 built?

It was built in 1938, making it 87 years old in 2025.

What condition is T 188 over CO Ditch # 1 in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in September 2024.

How much traffic does T 188 over CO Ditch # 1 carry?

About 88 vehicles per day (1986 count).

How long is T 188 over CO Ditch # 1?

The structure is 26 ft (8 m) long with a longest span of 12 ft (3.7 m) and a deck 24 ft wide.

Who owns T 188 over CO Ditch # 1?

It is owned by the Town or Township Highway Agency.