US Bridges

Mn 68 over S Br Yellow Medicine R

Fair

Lyon County, Minnesota · 0.5 MI NW of JCT Csah 3 · Structure no. 42004

Built
1962
63 years old, rebuilt 1996
Condition
Fair
inspected October 2023
Type
Slab
Concrete Continuous
Length
157 ft
5 main spans
Daily traffic
1,528
2022 count
Owner
State
State Highway Agency

About this bridge

Mn 68 over S Br Yellow Medicine R is a concrete continuous slab carrying Mn 68 over S Br Yellow Medicine R in Lyon County, Minnesota. It was built in 1962 and reconstructed in 1996, so it is 63 years old, older than the Minnesota average of 38.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 1,528 vehicles a day, roughly 16% of them trucks, projected to reach 1,850 by 2042. The structure is 157 ft (48 m) long and 43 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesMn 68
CrossesS Br Yellow Medicine R
Location0.5 MI NW of JCT Csah 3
RouteState Highway 68
CountyLyon County
StateMinnesota
Coordinates44.56337, -95.9961
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating95.3 US tons
Inventory rating57.5 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 25 or greater
Structure length157 ft (48 m)
Longest span31 ft (9.5 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,528 (2022)
Projected traffic1,850 by 2042
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$540 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Mn 68 over S Br Yellow Medicine R built?

It was built in 1962, making it 63 years old in 2025. It was reconstructed in 1996.

What condition is Mn 68 over S Br Yellow Medicine R in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2023.

How much traffic does Mn 68 over S Br Yellow Medicine R carry?

About 1,528 vehicles per day (2022 count), of which roughly 16% are trucks.

How long is Mn 68 over S Br Yellow Medicine R?

The structure is 157 ft (48 m) long with a longest span of 31 ft (9.5 m) and a deck 43 ft wide.

Who owns Mn 68 over S Br Yellow Medicine R?

It is owned by the State Highway Agency.