US Bridges

US 10 over Miss. River Back Channel

Good

Morrison County, Minnesota · 0.8 MI W of JCT TH 371 · Structure no. 49042

Built
2010
15 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
134 ft
1 main span
Daily traffic
11,000
2019 count
Owner
State
State Highway Agency

About this bridge

US 10 over Miss. River Back Channel is a prestressed concrete stringer/multi-beam or girder carrying US 10 over Miss. River Back Channel in Morrison 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 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 11,000 vehicles a day, roughly 11% of them trucks, projected to reach 10,100 by 2039. The structure is 134 ft (40.7 m) long and 89 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesUS 10
CrossesMiss. River Back Channel
Location0.8 MI W of JCT TH 371
RouteU.S. Route 10
CountyMorrison County
StateMinnesota
Coordinates45.99993, -94.37
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionOctober 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 geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating88.4 US tons
Inventory rating40.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length134 ft (40.7 m)
Longest span130 ft (39.6 m)
Deck width89 ft (27.2 m)
Roadway width84 ft (25.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,000 (2019)
Projected traffic10,100 by 2039
Trucks11%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemYes

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 10 over Miss. River Back Channel built?

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

What condition is US 10 over Miss. River Back Channel 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 2023.

How much traffic does US 10 over Miss. River Back Channel carry?

About 11,000 vehicles per day (2019 count), of which roughly 11% are trucks.

How long is US 10 over Miss. River Back Channel?

The structure is 134 ft (40.7 m) long with a longest span of 130 ft (39.6 m) and a deck 89 ft wide.

Who owns US 10 over Miss. River Back Channel?

It is owned by the State Highway Agency.