US Bridges

Csah 23 over Skunk River

Good

Morrison County, Minnesota · 1.0 MI N of JCT Csah 39 · Structure no. 49J02

Built
1996
29 years old
Condition
Good
inspected October 2021
Type
Culvert
Concrete
Length
35 ft
2 main spans
Daily traffic
764
2022 count
Owner
County
County Highway Agency

About this bridge

Csah 23 over Skunk River is a concrete culvert carrying Csah 23 over Skunk River in Morrison County, Minnesota. It was built in 1996, so it is 29 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 764 vehicles a day, roughly 6% of them trucks, projected to reach 650 by 2042. The structure is 35 ft (10.8 m) long. If it were closed, the detour would be 3.1 mi (5 km).

CarriesCsah 23
CrossesSkunk River
Location1.0 MI N of JCT Csah 39
RouteCounty Highway 23
Coordinates45.99808, -94.06216
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 inspectionOctober 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.6 US tons
Inventory rating45 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 25 or greater
Structure length35 ft (10.8 m)
Longest span14 ft (4.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic764 (2022)
Projected traffic650 by 2042
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Skunk River built?

It was built in 1996, making it 29 years old in 2025.

What condition is Csah 23 over Skunk 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 2021.

How much traffic does Csah 23 over Skunk River carry?

About 764 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is Csah 23 over Skunk River?

The structure is 35 ft (10.8 m) long with a longest span of 14 ft (4.4 m).

Who owns Csah 23 over Skunk River?

It is owned by the County Highway Agency.