US Bridges

Csah 15 over Minnesota River

Good

Lac qui Parle County, Minnesota · 2.1 MI N of JCT Csah 40 · Structure no. 37552

Built
2007
18 years old
Condition
Good
inspected August 2023
Type
Slab
Concrete Continuous
Length
143 ft
3 main spans
Daily traffic
220
2016 count
Owner
County
County Highway Agency

About this bridge

Csah 15 over Minnesota River is a concrete continuous slab carrying Csah 15 over Minnesota River in Lac qui Parle County, Minnesota. It was built in 2007, so it is 18 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 220 vehicles a day, projected to reach 220 by 2039. The structure is 143 ft (43.6 m) long and 35 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesCsah 15
CrossesMinnesota River
Location2.1 MI N of JCT Csah 40
RouteCounty Highway 15
Coordinates45.25616, -96.33922
Functional classRural Minor Collector

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 protection9 ExcellentNo problems noted.
Last inspectionAugust 2023
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 rating107.3 US tons
Inventory rating64.3 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length143 ft (43.6 m)
Longest span54 ft (16.5 m)
Deck width35 ft (10.8 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic220 (2016)
Projected traffic220 by 2039
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

OwnerCounty Highway Agency
Maintained byCounty 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 Csah 15 over Minnesota River built?

It was built in 2007, making it 18 years old in 2025.

What condition is Csah 15 over Minnesota 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 August 2023.

How much traffic does Csah 15 over Minnesota River carry?

About 220 vehicles per day (2016 count).

How long is Csah 15 over Minnesota River?

The structure is 143 ft (43.6 m) long with a longest span of 54 ft (16.5 m) and a deck 35 ft wide.

Who owns Csah 15 over Minnesota River?

It is owned by the County Highway Agency.