US Bridges

Csah 24 over Two Rivers

Good

Morrison County, Minnesota · 0.1 MI N of JCT Csah 21 · Structure no. 91978

Built
1978
47 years old
Condition
Good
inspected November 2022
Type
Culvert
Concrete
Length
31 ft
2 main spans
Daily traffic
1,750
2017 count
Owner
County
County Highway Agency

About this bridge

Csah 24 over Two Rivers is a concrete culvert carrying Csah 24 over Two Rivers in Morrison County, Minnesota. It was built in 1978, so it is 47 years old, older 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 1,750 vehicles a day, roughly 5% of them trucks, projected to reach 1,750 by 2037. The structure is 31 ft (9.5 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCsah 24
CrossesTwo Rivers
Location0.1 MI N of JCT Csah 21
RouteCounty Highway 24
Coordinates45.80571, -94.40952
Functional classRural Major 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 protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionNovember 2022
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 rating59.4 US tons
Inventory rating39.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length31 ft (9.5 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,750 (2017)
Projected traffic1,750 by 2037
Trucks5%
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 24 over Two Rivers built?

It was built in 1978, making it 47 years old in 2025.

What condition is Csah 24 over Two Rivers 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 24 over Two Rivers carry?

About 1,750 vehicles per day (2017 count), of which roughly 5% are trucks.

How long is Csah 24 over Two Rivers?

The structure is 31 ft (9.5 m) long with a longest span of 14 ft (4.3 m).

Who owns Csah 24 over Two Rivers?

It is owned by the County Highway Agency.