US Bridges

Csah 48 over Platte River

Good

Morrison County, Minnesota · 0.5 MI E of JCT TH 25 · Structure no. 49J68

Built
2012
13 years old
Condition
Good
inspected November 2024
Type
Culvert
Concrete
Length
60 ft
3 main spans
Daily traffic
564
2022 count
Owner
County
County Highway Agency

About this bridge

Csah 48 over Platte River is a concrete culvert carrying Csah 48 over Platte River in Morrison County, Minnesota. It was built in 2012, so it is 13 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 564 vehicles a day, roughly 5% of them trucks, projected to reach 450 by 2042. The structure is 60 ft (18.2 m) long. If it were closed, the detour would be 3.7 mi (6 km).

CarriesCsah 48
CrossesPlatte River
Location0.5 MI E of JCT TH 25
RouteCounty Highway 48
Coordinates46.09959, -94.09226
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.
Culvert7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum 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 length60 ft (18.2 m)
Longest span18 ft (5.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic564 (2022)
Projected traffic450 by 2042
Trucks5%
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 48 over Platte River built?

It was built in 2012, making it 13 years old in 2025.

What condition is Csah 48 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 2024.

How much traffic does Csah 48 over Platte River carry?

About 564 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is Csah 48 over Platte River?

The structure is 60 ft (18.2 m) long with a longest span of 18 ft (5.6 m).

Who owns Csah 48 over Platte River?

It is owned by the County Highway Agency.