US Bridges

T 77 over CO Ditch # 13

Good

Chippewa County, Minnesota · 1.0 MI S of JCT TH 40 · Structure no. 91955

Built
1979
46 years old
Condition
Good
inspected May 2024
Type
Culvert
Concrete
Length
38 ft
2 main spans
Daily traffic
26
1973 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T 77 over CO Ditch # 13 is a concrete culvert carrying T 77 over CO Ditch # 13 in Chippewa County, Minnesota. It was built in 1979, so it is 46 years old, older than the Minnesota average of 38.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 26 vehicles a day, projected to reach 26 by 2029. The structure is 38 ft (11.6 m) long. If it were closed, the detour would be 3.7 mi (6 km).

CarriesT 77
CrossesCO Ditch # 13
Location1.0 MI S of JCT TH 40
RouteCounty Highway 77
Coordinates45.09486, -95.83776
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionMay 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
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating32.4 US tons
Inventory rating21.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length38 ft (11.6 m)
Longest span16 ft (4.9 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic26 (1973)
Projected traffic26 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 77 over CO Ditch # 13 built?

It was built in 1979, making it 46 years old in 2025.

What condition is T 77 over CO Ditch # 13 in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2024.

How much traffic does T 77 over CO Ditch # 13 carry?

About 26 vehicles per day (1973 count).

How long is T 77 over CO Ditch # 13?

The structure is 38 ft (11.6 m) long with a longest span of 16 ft (4.9 m).

Who owns T 77 over CO Ditch # 13?

It is owned by the Town or Township Highway Agency.