US Bridges

Csah 21 over Two Rivers

Good

Morrison County, Minnesota · 1.0 MI W of JCT Csah 1 · Structure no. 49K02

Built
2020
5 years old
Condition
Good
inspected November 2021
Type
Culvert
Concrete
Length
26 ft
2 main spans
Daily traffic
1,050
2020 count
Owner
County
County Highway Agency

About this bridge

Csah 21 over Two Rivers is a concrete culvert carrying Csah 21 over Two Rivers in Morrison County, Minnesota. It was built in 2020, so it is 5 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 1,050 vehicles a day, projected to reach 1,133 by 2040. The structure is 26 ft (7.9 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCsah 21
CrossesTwo Rivers
Location1.0 MI W of JCT Csah 1
RouteCounty Highway 21
Coordinates45.8034, -94.51296
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
Channel and channel protection7 GoodSome minor problems.
Culvert9 ExcellentNo problems noted.
Last inspectionNovember 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy9: Superior 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 spans2
Design loadHL 93
Structure length26 ft (7.9 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,050 (2020)
Projected traffic1,133 by 2040
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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Csah 21 over Two Rivers built?

It was built in 2020, making it 5 years old in 2025.

What condition is Csah 21 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 2021.

How much traffic does Csah 21 over Two Rivers carry?

About 1,050 vehicles per day (2020 count).

How long is Csah 21 over Two Rivers?

The structure is 26 ft (7.9 m) long with a longest span of 12 ft (3.7 m).

Who owns Csah 21 over Two Rivers?

It is owned by the County Highway Agency.