US Bridges

Csah 18 over Potato Lk Outlet

Fair

Hubbard County, Minnesota · 1.0 MI W of JCT Csah 1 · Structure no. 29526

Built
2004
21 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
88 ft
1 main span
Daily traffic
650
2020 count
Owner
County
County Highway Agency

About this bridge

Csah 18 over Potato Lk Outlet is a prestressed concrete stringer/multi-beam or girder carrying Csah 18 over Potato Lk Outlet in Hubbard County, Minnesota. It was built in 2004, so it is 21 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 650 vehicles a day, projected to reach 560 by 2040. The structure is 88 ft (26.7 m) long and 39 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesCsah 18
CrossesPotato Lk Outlet
Location1.0 MI W of JCT Csah 1
RouteCounty Highway 18
CountyHubbard County
StateMinnesota
Coordinates46.97823, -95.04661
Functional classRural Major 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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating85.5 US tons
Inventory rating49.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length88 ft (26.7 m)
Longest span86 ft (26.2 m)
Deck width39 ft (12 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic650 (2020)
Projected traffic560 by 2040
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 18 over Potato Lk Outlet built?

It was built in 2004, making it 21 years old in 2025.

What condition is Csah 18 over Potato Lk Outlet 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 2023.

How much traffic does Csah 18 over Potato Lk Outlet carry?

About 650 vehicles per day (2020 count).

How long is Csah 18 over Potato Lk Outlet?

The structure is 88 ft (26.7 m) long with a longest span of 86 ft (26.2 m) and a deck 39 ft wide.

Who owns Csah 18 over Potato Lk Outlet?

It is owned by the County Highway Agency.