US Bridges

T 58 over Coal Mine Creek

Good

Brown County, Minnesota · 2.2 MI SW of JCT Csah 4 · Structure no. L9623

Built
1976
49 years old
Condition
Good
inspected October 2023
Type
Culvert
Concrete
Length
47 ft
3 main spans
Daily traffic
10
1973 count
Owner
County
County Highway Agency

About this bridge

T 58 over Coal Mine Creek is a concrete culvert carrying T 58 over Coal Mine Creek in Brown County, Minnesota. It was built in 1976, so it is 49 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 10 vehicles a day, projected to reach 10 by 2029. The structure is 47 ft (14.2 m) long. If it were closed, the detour would be 3.1 mi (5 km).

CarriesT 58
CrossesCoal Mine Creek
Location2.2 MI SW of JCT Csah 4
RouteCounty Highway 58
Coordinates44.22439, -95.03227
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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating43.2 US tons
Inventory rating32.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length47 ft (14.2 m)
Longest span11 ft (3.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (1973)
Projected traffic10 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was T 58 over Coal Mine Creek built?

It was built in 1976, making it 49 years old in 2025.

What condition is T 58 over Coal Mine 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 October 2023.

How much traffic does T 58 over Coal Mine Creek carry?

About 10 vehicles per day (1973 count).

How long is T 58 over Coal Mine Creek?

The structure is 47 ft (14.2 m) long with a longest span of 11 ft (3.5 m).

Who owns T 58 over Coal Mine Creek?

It is owned by the County Highway Agency.