US Bridges

Mn 55 over Pomme De Terre River

Good

Grant County, Minnesota · 0.9 MI SE of Barrett · Structure no. 26012

Built
2020
5 years old
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
91 ft
1 main span
Daily traffic
1,116
2021 count
Owner
State
State Highway Agency

About this bridge

Mn 55 over Pomme De Terre River is a prestressed concrete stringer/multi-beam or girder carrying Mn 55 over Pomme De Terre River in Grant 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,116 vehicles a day, roughly 12% of them trucks, projected to reach 990 by 2041. The structure is 91 ft (27.6 m) long and 35 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesMn 55
CrossesPomme De Terre River
Location0.9 MI SE of Barrett
RouteState Highway 55
Coordinates45.90046, -95.88087
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.
Substructure8 Very GoodNo problems noted.
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 evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating58.2 US tons
Inventory rating38.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length91 ft (27.6 m)
Longest span88 ft (26.9 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,116 (2021)
Projected traffic990 by 2041
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 55 over Pomme De Terre River built?

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

What condition is Mn 55 over Pomme De Terre River 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 55 over Pomme De Terre River carry?

About 1,116 vehicles per day (2021 count), of which roughly 12% are trucks.

How long is Mn 55 over Pomme De Terre River?

The structure is 91 ft (27.6 m) long with a longest span of 88 ft (26.9 m) and a deck 35 ft wide.

Who owns Mn 55 over Pomme De Terre River?

It is owned by the State Highway Agency.