US Bridges

T 29 over Trib Rock River

Fair

Pipestone County, Minnesota · 0.2 MI E of JCT Csah 18 · Structure no. 95556

Built
1981
44 years old
Condition
Fair
inspected May 2024
Type
Culvert
Concrete
Length
31 ft
2 main spans
Daily traffic
22
1986 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T 29 over Trib Rock River is a concrete culvert carrying T 29 over Trib Rock River in Pipestone 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 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 22 vehicles a day, projected to reach 22 by 2029. The structure is 31 ft (9.6 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesT 29
CrossesTrib Rock River
Location0.2 MI E of JCT Csah 18
RouteCounty Highway 29
CountyPipestone County
StateMinnesota
Coordinates43.97916, -96.10062
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
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 length31 ft (9.6 m)
Longest span12 ft (3.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic22 (1986)
Projected traffic22 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 29 over Trib Rock River built?

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

What condition is T 29 over Trib Rock River 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 May 2024.

How much traffic does T 29 over Trib Rock River carry?

About 22 vehicles per day (1986 count).

How long is T 29 over Trib Rock River?

The structure is 31 ft (9.6 m) long with a longest span of 12 ft (3.6 m).

Who owns T 29 over Trib Rock River?

It is owned by the Town or Township Highway Agency.