US Bridges

T 76 over Twelve Mile Creek

Fair

Traverse County, Minnesota · 0.4 MI W of JCT Csah 13 · Structure no. L9780

Built
1978
47 years old
Condition
Fair
inspected December 2023
Type
Culvert
Concrete
Length
48 ft
3 main spans
Daily traffic
4
1986 count
Owner
County
County Highway Agency

About this bridge

T 76 over Twelve Mile Creek is a concrete culvert carrying T 76 over Twelve Mile Creek in Traverse County, Minnesota. It was built in 1978, so it is 47 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 4 vehicles a day, projected to reach 4 by 2029. The structure is 48 ft (14.7 m) long. If it were closed, the detour would be 3.1 mi (5 km).

CarriesT 76
CrossesTwelve Mile Creek
Location0.4 MI W of JCT Csah 13
RouteCounty Highway 76
Coordinates45.7591, -96.36612
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 protection7 GoodSome minor problems.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionDecember 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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length48 ft (14.7 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4 (1986)
Projected traffic4 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

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$104 million
NavigationNo navigation control on waterway

Frequently asked questions

When was T 76 over Twelve Mile Creek built?

It was built in 1978, making it 47 years old in 2025.

What condition is T 76 over Twelve Mile 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 December 2023.

How much traffic does T 76 over Twelve Mile Creek carry?

About 4 vehicles per day (1986 count).

How long is T 76 over Twelve Mile Creek?

The structure is 48 ft (14.7 m) long with a longest span of 14 ft (4.3 m).

Who owns T 76 over Twelve Mile Creek?

It is owned by the County Highway Agency.