US Bridges

T 129 over Shanaska Creek

Good

Le Sueur County, Minnesota · 0.3 MI S of JCT Csah 18 · Structure no. 40J15

Built
2004
21 years old
Condition
Good
inspected October 2022
Type
Culvert
Concrete
Length
22 ft
2 main spans
Daily traffic
10
2003 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T 129 over Shanaska Creek is a concrete culvert carrying T 129 over Shanaska Creek in Le Sueur County, Minnesota. It was built in 2004, so it is 21 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 10 vehicles a day, projected to reach 10 by 2029. The structure is 22 ft (6.6 m) long. If it were closed, the detour would be 3.7 mi (6 km).

CarriesT 129
CrossesShanaska Creek
Location0.3 MI S of JCT Csah 18
RouteCounty Highway 129
Coordinates44.29018, -93.92913
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionOctober 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.8 US tons
Inventory rating43.2 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 25 or greater
Structure length22 ft (6.6 m)
Longest span10 ft (3.2 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2003)
Projected traffic10 by 2029
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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$525.6 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was T 129 over Shanaska Creek built?

It was built in 2004, making it 21 years old in 2025.

What condition is T 129 over Shanaska Creek 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 October 2022.

How much traffic does T 129 over Shanaska Creek carry?

About 10 vehicles per day (2003 count).

How long is T 129 over Shanaska Creek?

The structure is 22 ft (6.6 m) long with a longest span of 10 ft (3.2 m).

Who owns T 129 over Shanaska Creek?

It is owned by the Town or Township Highway Agency.