US Bridges

T 184 over Stony Brook

FairPosted for load

Cass County, Minnesota · 2.8 MI S of JCT Csah 17 · Structure no. R0301

Built
1990
35 years old
Condition
Fair
inspected October 2024
Type
Culvert
Steel
Length
24 ft
2 main spans
Daily traffic
18
1986 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T 184 over Stony Brook is a steel culvert carrying T 184 over Stony Brook in Cass County, Minnesota. It was built in 1990, so it is 35 years old, younger 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. Its operating status is: posted for load restriction.

It carries about 18 vehicles a day, projected to reach 18 by 2029. The structure is 24 ft (7.2 m) long. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesT 184
CrossesStony Brook
Location2.8 MI S of JCT Csah 17
RouteCounty Highway 184
CountyCass County
StateMinnesota
Coordinates46.56024, -94.39287
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 inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating30.6 US tons
Inventory rating23.4 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadUnknown
Structure length24 ft (7.2 m)
Longest span10 ft (2.9 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18 (1986)
Projected traffic18 by 2029
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 184 over Stony Brook built?

It was built in 1990, making it 35 years old in 2025.

What condition is T 184 over Stony Brook 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 2024.

How much traffic does T 184 over Stony Brook carry?

About 18 vehicles per day (1986 count).

How long is T 184 over Stony Brook?

The structure is 24 ft (7.2 m) long with a longest span of 10 ft (2.9 m).

Who owns T 184 over Stony Brook?

It is owned by the Town or Township Highway Agency.