US Bridges

Csah 43 over Platte River

Good

Morrison County, Minnesota · 0.2 MI E of JCT Csah 45 · Structure no. 49555

Built
2015
10 years old
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Concrete
Length
118 ft
1 main span
Daily traffic
435
2020 count
Owner
County
County Highway Agency

About this bridge

Csah 43 over Platte River is a concrete stringer/multi-beam or girder carrying Csah 43 over Platte River in Morrison County, Minnesota. It was built in 2015, so it is 10 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 435 vehicles a day, projected to reach 495 by 2040. The structure is 118 ft (35.9 m) long and 39 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesCsah 43
CrossesPlatte River
Location0.2 MI E of JCT Csah 45
RouteCounty Highway 43
Coordinates45.99783, -94.19956
Functional classRural Local

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 protection9 ExcellentNo problems noted.
Last inspectionSeptember 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 geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating76.4 US tons
Inventory rating43.2 US tons

Structure

MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length118 ft (35.9 m)
Longest span115 ft (35.1 m)
Deck width39 ft (12 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic435 (2020)
Projected traffic495 by 2040
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Csah 43 over Platte River built?

It was built in 2015, making it 10 years old in 2025.

What condition is Csah 43 over Platte 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 September 2024.

How much traffic does Csah 43 over Platte River carry?

About 435 vehicles per day (2020 count).

How long is Csah 43 over Platte River?

The structure is 118 ft (35.9 m) long with a longest span of 115 ft (35.1 m) and a deck 39 ft wide.

Who owns Csah 43 over Platte River?

It is owned by the County Highway Agency.