US Bridges

Csah 20 over Lac Qui Parle River

Good

Lac qui Parle County, Minnesota · 1.1 MI W of JCT CR 75 · Structure no. 37536

Built
2013
12 years old
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
191 ft
3 main spans
Daily traffic
530
2016 count
Owner
County
County Highway Agency

About this bridge

Csah 20 over Lac Qui Parle River is a prestressed concrete stringer/multi-beam or girder carrying Csah 20 over Lac Qui Parle River in Lac qui Parle County, Minnesota. It was built in 2013, so it is 12 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 530 vehicles a day, projected to reach 530 by 2039. The structure is 191 ft (58.2 m) long and 38 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesCsah 20
CrossesLac Qui Parle River
Location1.1 MI W of JCT CR 75
RouteCounty Highway 20
Coordinates44.99355, -95.90189
Functional classRural Major 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.
Superstructure9 ExcellentNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 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 adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.3 US tons
Inventory rating50 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length191 ft (58.2 m)
Longest span63 ft (19.3 m)
Deck width38 ft (11.7 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic530 (2016)
Projected traffic530 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 20 over Lac Qui Parle River built?

It was built in 2013, making it 12 years old in 2025.

What condition is Csah 20 over Lac Qui Parle 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 2023.

How much traffic does Csah 20 over Lac Qui Parle River carry?

About 530 vehicles per day (2016 count).

How long is Csah 20 over Lac Qui Parle River?

The structure is 191 ft (58.2 m) long with a longest span of 63 ft (19.3 m) and a deck 38 ft wide.

Who owns Csah 20 over Lac Qui Parle River?

It is owned by the County Highway Agency.