US Bridges

Csah 29 over Sand Creek

Good

Le Sueur County, Minnesota · 2.0 MI E of JCT TH 13 · Structure no. 93970

Built
1988
37 years old
Condition
Good
inspected October 2024
Type
Culvert
Steel
Length
34 ft
2 main spans
Daily traffic
2,350
2017 count
Owner
County
County Highway Agency

About this bridge

Csah 29 over Sand Creek is a steel culvert carrying Csah 29 over Sand Creek in Le Sueur County, Minnesota. It was built in 1988, so it is 37 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 2,350 vehicles a day, projected to reach 2,350 by 2039. The structure is 34 ft (10.3 m) long. If it were closed, the detour would be 9.9 mi (16 km).

CarriesCsah 29
CrossesSand Creek
Location2.0 MI E of JCT TH 13
RouteCounty Highway 29
Coordinates44.52971, -93.54441
Functional classUrban Collector

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 protection7 GoodSome minor problems.
Culvert8 Very GoodNo problems noted.
Last inspectionOctober 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 rating28.8 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadHS 20
Structure length34 ft (10.3 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,350 (2017)
Projected traffic2,350 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$933 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Csah 29 over Sand Creek built?

It was built in 1988, making it 37 years old in 2025.

What condition is Csah 29 over Sand 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 2024.

How much traffic does Csah 29 over Sand Creek carry?

About 2,350 vehicles per day (2017 count).

How long is Csah 29 over Sand Creek?

The structure is 34 ft (10.3 m) long with a longest span of 14 ft (4.3 m).

Who owns Csah 29 over Sand Creek?

It is owned by the County Highway Agency.