US Bridges

T 47 over Coon Creek

Good

Lyon County, Minnesota · 0.7 MI W of JCT CR 66 · Structure no. 95407

Built
1981
44 years old
Condition
Good
inspected September 2021
Type
Culvert
Concrete
Length
46 ft
3 main spans
Daily traffic
36
1992 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T 47 over Coon Creek is a concrete culvert carrying T 47 over Coon Creek in Lyon County, Minnesota. It was built in 1981, so it is 44 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 36 vehicles a day, projected to reach 36 by 2029. The structure is 46 ft (14 m) long. If it were closed, the detour would be 3.1 mi (5 km).

CarriesT 47
CrossesCoon Creek
Location0.7 MI W of JCT CR 66
RouteCounty Highway 47
Coordinates44.3715, -96.07324
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.
Culvert8 Very GoodNo problems noted.
Last inspectionSeptember 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating59.4 US tons
Inventory rating39.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length46 ft (14 m)
Longest span13 ft (4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic36 (1992)
Projected traffic36 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

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 47 over Coon Creek built?

It was built in 1981, making it 44 years old in 2025.

What condition is T 47 over Coon Creek 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 September 2021.

How much traffic does T 47 over Coon Creek carry?

About 36 vehicles per day (1992 count).

How long is T 47 over Coon Creek?

The structure is 46 ft (14 m) long with a longest span of 13 ft (4 m).

Who owns T 47 over Coon Creek?

It is owned by the Town or Township Highway Agency.