US Bridges

Mn 220 over Snake River

Fair

Marshall County, Minnesota · 1.5 MI S of JCT TH 1 · Structure no. 45003

Built
1980
45 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
128 ft
3 main spans
Daily traffic
1,450
2018 count
Owner
State
State Highway Agency

About this bridge

Mn 220 over Snake River is a steel continuous stringer/multi-beam or girder carrying Mn 220 over Snake River in Marshall County, Minnesota. It was built in 1980, so it is 45 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 1,450 vehicles a day, roughly 9% of them trucks, projected to reach 1,350 by 2038. The structure is 128 ft (39 m) long and 50 ft wide. If it were closed, the detour would be 13 mi (21 km).

CarriesMn 220
CrossesSnake River
Location1.5 MI S of JCT TH 1
RouteState Highway 220
Coordinates48.17413, -96.99886
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
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating80 US tons
Inventory rating48 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length128 ft (39 m)
Longest span52 ft (15.9 m)
Deck width50 ft (15.3 m)
Roadway width47 ft (14.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,450 (2018)
Projected traffic1,350 by 2038
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13 mi (21 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Mn 220 over Snake River built?

It was built in 1980, making it 45 years old in 2025.

What condition is Mn 220 over Snake River 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 August 2024.

How much traffic does Mn 220 over Snake River carry?

About 1,450 vehicles per day (2018 count), of which roughly 9% are trucks.

How long is Mn 220 over Snake River?

The structure is 128 ft (39 m) long with a longest span of 52 ft (15.9 m) and a deck 50 ft wide.

Who owns Mn 220 over Snake River?

It is owned by the State Highway Agency.