US Bridges

US 75 over Marsh River

Fair

Norman County, Minnesota · 0.5 MI S of Shelly · Structure no. 54010

Built
2010
15 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
186 ft
1 main span
Daily traffic
1,500
2018 count
Owner
State
State Highway Agency

About this bridge

US 75 over Marsh River is a steel stringer/multi-beam or girder carrying US 75 over Marsh River in Norman County, Minnesota. It was built in 2010, so it is 15 years old, younger 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 1,500 vehicles a day, roughly 12% of them trucks, projected to reach 1,350 by 2038. The structure is 186 ft (56.6 m) long and 43 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesUS 75
CrossesMarsh River
Location0.5 MI S of Shelly
RouteU.S. Route 75
CountyNorman County
StateMinnesota
Coordinates47.44917, -96.82241
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2024
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 adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating109.8 US tons
Inventory rating68.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length186 ft (56.6 m)
Longest span180 ft (55 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,500 (2018)
Projected traffic1,350 by 2038
Trucks12%
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was US 75 over Marsh River built?

It was built in 2010, making it 15 years old in 2025.

What condition is US 75 over Marsh 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 May 2024.

How much traffic does US 75 over Marsh River carry?

About 1,500 vehicles per day (2018 count), of which roughly 12% are trucks.

How long is US 75 over Marsh River?

The structure is 186 ft (56.6 m) long with a longest span of 180 ft (55 m) and a deck 43 ft wide.

Who owns US 75 over Marsh River?

It is owned by the State Highway Agency.