US Bridges

Csah 23 over Platte River

Good

Morrison County, Minnesota · 0.7 MI N of JCT Csah 51 · Structure no. 49J87

Built
2016
9 years old
Condition
Good
inspected November 2022
Type
Culvert
Concrete
Length
34 ft
3 main spans
Daily traffic
504
2022 count
Owner
County
County Highway Agency

About this bridge

Csah 23 over Platte River is a concrete culvert carrying Csah 23 over Platte River in Morrison County, Minnesota. It was built in 2016, so it is 9 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 504 vehicles a day, projected to reach 315 by 2042. The structure is 34 ft (10.3 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCsah 23
CrossesPlatte River
Location0.7 MI N of JCT Csah 51
RouteCounty Highway 23
Coordinates46.12467, -94.06209
Functional classRural Minor Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert9 ExcellentNo problems noted.
Last inspectionNovember 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHL 93
Structure length34 ft (10.3 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic504 (2022)
Projected traffic315 by 2042
Trucks—
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

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 23 over Platte River built?

It was built in 2016, making it 9 years old in 2025.

What condition is Csah 23 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 November 2022.

How much traffic does Csah 23 over Platte River carry?

About 504 vehicles per day (2022 count).

How long is Csah 23 over Platte River?

The structure is 34 ft (10.3 m) long with a longest span of 10 ft (3 m).

Who owns Csah 23 over Platte River?

It is owned by the County Highway Agency.