US Bridges

T 174 over Mound Creek

Fair

Brown County, Minnesota · 0.8 MI N of JCT Csah 21 · Structure no. L5856

Built
1971
54 years old
Condition
Fair
inspected October 2023
Type
Culvert
Concrete
Length
30 ft
2 main spans
Daily traffic
25
1973 count
Owner
County
County Highway Agency

About this bridge

T 174 over Mound Creek is a concrete culvert carrying T 174 over Mound Creek in Brown County, Minnesota. It was built in 1971, so it is 54 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 6 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 25 vehicles a day, projected to reach 25 by 2029. The structure is 30 ft (9.1 m) long. If it were closed, the detour would be 3.1 mi (5 km).

CarriesT 174
CrossesMound Creek
Location0.8 MI N of JCT Csah 21
RouteCounty Highway 174
Coordinates44.17836, -95.02046
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.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable 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 spans2
Design loadHS 20
Structure length30 ft (9.1 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 traffic25 (1973)
Projected traffic25 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 174 over Mound Creek built?

It was built in 1971, making it 54 years old in 2025.

What condition is T 174 over Mound 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 October 2023.

How much traffic does T 174 over Mound Creek carry?

About 25 vehicles per day (1973 count).

How long is T 174 over Mound Creek?

The structure is 30 ft (9.1 m) long with a longest span of 11 ft (3.5 m).

Who owns T 174 over Mound Creek?

It is owned by the County Highway Agency.