US Bridges

Mn 40 over Lac Qui Parle Reservoir

Good

Chippewa County, Minnesota · 3.8 MI W of JCT TH 59 · Structure no. 12017

Built
2020
5 years old
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
198 ft
2 main spans
Daily traffic
380
2022 count
Owner
State
State Highway Agency

About this bridge

Mn 40 over Lac Qui Parle Reservoir is a prestressed concrete stringer/multi-beam or girder carrying Mn 40 over Lac Qui Parle Reservoir in Chippewa County, Minnesota. It was built in 2020, so it is 5 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 380 vehicles a day, roughly 17% of them trucks, projected to reach 419 by 2042. The structure is 198 ft (60.5 m) long and 54 ft wide. If it were closed, the detour would be 24.9 mi (40 km).

Location

Open in Google Maps
CarriesMn 40
CrossesLac Qui Parle Reservoir
Location3.8 MI W of JCT TH 59
RouteState Highway 40
CountyChippewa County
StateMinnesota
Coordinates45.0977, -95.98009
Functional classRural Minor Arterial

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.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69.7 US tons
Inventory rating41.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length198 ft (60.5 m)
Longest span97 ft (29.5 m)
Deck width54 ft (16.4 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic380 (2022)
Projected traffic419 by 2042
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed24.9 mi (40 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Mn 40 over Lac Qui Parle Reservoir built?

It was built in 2020, making it 5 years old in 2025.

What condition is Mn 40 over Lac Qui Parle Reservoir 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 Mn 40 over Lac Qui Parle Reservoir carry?

About 380 vehicles per day (2022 count), of which roughly 17% are trucks.

How long is Mn 40 over Lac Qui Parle Reservoir?

The structure is 198 ft (60.5 m) long with a longest span of 97 ft (29.5 m) and a deck 54 ft wide.

Who owns Mn 40 over Lac Qui Parle Reservoir?

It is owned by the State Highway Agency.