US Bridges

Csah 20 over Stream

Fair

Todd County, Minnesota · 1.5 MI E of JCT TH 71 · Structure no. 93045

Built
1972
53 years old
Condition
Fair
inspected September 2024
Type
Culvert
Concrete
Length
23 ft
2 main spans
Daily traffic
390
2020 count
Owner
County
County Highway Agency

About this bridge

Csah 20 over Stream is a concrete culvert carrying Csah 20 over Stream in Todd County, Minnesota. It was built in 1972, so it is 53 years old, older than the Minnesota average of 38.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 390 vehicles a day, projected to reach 385 by 2040. The structure is 23 ft (7 m) long. If it were closed, the detour would be 3.1 mi (5 km).

CarriesCsah 20
CrossesStream
Location1.5 MI E of JCT TH 71
RouteCounty Highway 20
Coordinates46.13223, -94.92277
Functional classRural Minor Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating43.2 US tons
Inventory rating28.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length23 ft (7 m)
Longest span9 ft (2.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic390 (2020)
Projected traffic385 by 2040
Trucks—
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 20 over Stream built?

It was built in 1972, making it 53 years old in 2025.

What condition is Csah 20 over Stream in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in September 2024.

How much traffic does Csah 20 over Stream carry?

About 390 vehicles per day (2020 count).

How long is Csah 20 over Stream?

The structure is 23 ft (7 m) long with a longest span of 9 ft (2.6 m).

Who owns Csah 20 over Stream?

It is owned by the County Highway Agency.