US Bridges

Csah 4 over Loon Lake Outlet

Good

Jackson County, Minnesota · 0.7 MI E of JCT Csah 2 · Structure no. 32J06

Built
2000
25 years old
Condition
Good
inspected September 2024
Type
Culvert
Concrete
Length
31 ft
2 main spans
Daily traffic
670
2016 count
Owner
County
County Highway Agency

About this bridge

Csah 4 over Loon Lake Outlet is a concrete culvert carrying Csah 4 over Loon Lake Outlet in Jackson County, Minnesota. It was built in 2000, so it is 25 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 670 vehicles a day, projected to reach 670 by 2039. The structure is 31 ft (9.4 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesCsah 4
CrossesLoon Lake Outlet
Location0.7 MI E of JCT Csah 2
RouteCounty Highway 4
CountyJackson County
StateMinnesota
Coordinates43.5215, -95.10225
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 inspectionSeptember 2024
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 length31 ft (9.4 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 traffic670 (2016)
Projected traffic670 by 2039
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 4 over Loon Lake Outlet built?

It was built in 2000, making it 25 years old in 2025.

What condition is Csah 4 over Loon Lake Outlet 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 September 2024.

How much traffic does Csah 4 over Loon Lake Outlet carry?

About 670 vehicles per day (2016 count).

How long is Csah 4 over Loon Lake Outlet?

The structure is 31 ft (9.4 m) long with a longest span of 14 ft (4.3 m).

Who owns Csah 4 over Loon Lake Outlet?

It is owned by the County Highway Agency.