US Bridges

US 10 over Platte River

Fair

Benton County, Minnesota · 0.2 MI S of N CO Line · Structure no. 6574

Built
1948
77 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
134 ft
3 main spans
Daily traffic
11,389
2022 count
Owner
State
State Highway Agency

About this bridge

US 10 over Platte River is a steel continuous stringer/multi-beam or girder carrying US 10 over Platte River in Benton County, Minnesota. It was built in 1948, so it is 77 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 11,389 vehicles a day, roughly 10% of them trucks, projected to reach 11,500 by 2042. The structure is 134 ft (40.8 m) long and 44 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 10
CrossesPlatte River
Location0.2 MI S of N CO Line
RouteU.S. Route 10
Coordinates45.82046, -94.28541
Functional classRural Principal Arterial - Other

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 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 rating76.7 US tons
Inventory rating45.9 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length134 ft (40.8 m)
Longest span58 ft (17.7 m)
Deck width44 ft (13.5 m)
Roadway width41 ft (12.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,389 (2022)
Projected traffic11,500 by 2042
Trucks10%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkSTRAHNET connector

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 Platte River built?

It was built in 1948, making it 77 years old in 2025.

What condition is US 10 over Platte 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 2023.

How much traffic does US 10 over Platte River carry?

About 11,389 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is US 10 over Platte River?

The structure is 134 ft (40.8 m) long with a longest span of 58 ft (17.7 m) and a deck 44 ft wide.

Who owns US 10 over Platte River?

It is owned by the State Highway Agency.