US Bridges

Csah 31 over Stream

Fair

Rice County, Minnesota · 0.1 MI E of JCT TH 246 · Structure no. 66J22

Built
2005
20 years old
Condition
Fair
inspected May 2023
Type
Culvert
Concrete
Length
31 ft
2 main spans
Daily traffic
2,900
2016 count
Owner
County
County Highway Agency

About this bridge

Csah 31 over Stream is a concrete culvert carrying Csah 31 over Stream in Rice County, Minnesota. It was built in 2005, so it is 20 years old, younger 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 2,900 vehicles a day, projected to reach 2,900 by 2039. The structure is 31 ft (9.4 m) long. If it were closed, the detour would be 6.2 mi (10 km).

CarriesCsah 31
CrossesStream
Location0.1 MI E of JCT TH 246
RouteCounty Highway 31
Coordinates44.40681, -93.07838
Functional classRural Minor Arterial

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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.8 US tons
Inventory rating43.2 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 25 or greater
Structure length31 ft (9.4 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 traffic2,900 (2016)
Projected traffic2,900 by 2039
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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$1,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Csah 31 over Stream built?

It was built in 2005, making it 20 years old in 2025.

What condition is Csah 31 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 May 2023.

How much traffic does Csah 31 over Stream carry?

About 2,900 vehicles per day (2016 count).

How long is Csah 31 over Stream?

The structure is 31 ft (9.4 m) long with a longest span of 14 ft (4.4 m).

Who owns Csah 31 over Stream?

It is owned by the County Highway Agency.