US Bridges

T 29 over Little Sioux River

Good

Jackson County, Minnesota · 0.9 MI E of JCT Csah 9 · Structure no. 32574

Built
2014
11 years old
Condition
Good
inspected September 2024
Type
Slab
Concrete Continuous
Length
61 ft
3 main spans
Daily traffic
35
2013 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T 29 over Little Sioux River is a concrete continuous slab carrying T 29 over Little Sioux River in Jackson County, Minnesota. It was built in 2014, so it is 11 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 35 vehicles a day, projected to reach 35 by 2033. The structure is 61 ft (18.6 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesT 29
CrossesLittle Sioux River
Location0.9 MI E of JCT Csah 9
RouteCounty Highway 29
Coordinates43.57311, -95.25778
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.3 US tons
Inventory rating50 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length61 ft (18.6 m)
Longest span22 ft (6.7 m)
Deck width31 ft (9.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35 (2013)
Projected traffic35 by 2033
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 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 Little Sioux River built?

It was built in 2014, making it 11 years old in 2025.

What condition is T 29 over Little Sioux 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 September 2024.

How much traffic does T 29 over Little Sioux River carry?

About 35 vehicles per day (2013 count).

How long is T 29 over Little Sioux River?

The structure is 61 ft (18.6 m) long with a longest span of 22 ft (6.7 m) and a deck 31 ft wide.

Who owns T 29 over Little Sioux River?

It is owned by the Town or Township Highway Agency.