US Bridges

T 261 over Trib Rock River

Good

Pipestone County, Minnesota · 0.1 MI S of JCT Csah 16 · Structure no. 59K29

Built
2022
3 years old
Condition
Good
inspected June 2024
Type
Culvert
Concrete
Length
35 ft
3 main spans
Daily traffic
97
2021 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T 261 over Trib Rock River is a concrete culvert carrying T 261 over Trib Rock River in Pipestone County, Minnesota. It was built in 2022, so it is 3 years old, younger 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 97 vehicles a day, projected to reach 127 by 2041. The structure is 35 ft (10.7 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesT 261
CrossesTrib Rock River
Location0.1 MI S of JCT Csah 16
RouteCounty Highway 261
Coordinates43.95644, -96.20472
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 protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHL 93
Structure length35 ft (10.7 m)
Longest span10 ft (3.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic97 (2021)
Projected traffic127 by 2041
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was T 261 over Trib Rock River built?

It was built in 2022, making it 3 years old in 2025.

What condition is T 261 over Trib Rock River 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 June 2024.

How much traffic does T 261 over Trib Rock River carry?

About 97 vehicles per day (2021 count).

How long is T 261 over Trib Rock River?

The structure is 35 ft (10.7 m) long with a longest span of 10 ft (3.1 m).

Who owns T 261 over Trib Rock River?

It is owned by the Town or Township Highway Agency.