US Bridges

Csah 18 over Chippewa River

Good

Pope County, Minnesota · 0.9 MI W of JCT Csah 1 · Structure no. 61512

Built
2000
25 years old
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
109 ft
1 main span
Daily traffic
810
2019 count
Owner
County
County Highway Agency

About this bridge

Csah 18 over Chippewa River is a prestressed concrete stringer/multi-beam or girder carrying Csah 18 over Chippewa River in Pope 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 810 vehicles a day, projected to reach 760 by 2039. The structure is 109 ft (33.1 m) long and 43 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCsah 18
CrossesChippewa River
Location0.9 MI W of JCT Csah 1
RouteCounty Highway 18
Coordinates45.57183, -95.69337
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than 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 rating70.9 US tons
Inventory rating44.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length109 ft (33.1 m)
Longest span107 ft (32.5 m)
Deck width43 ft (13 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic810 (2019)
Projected traffic760 by 2039
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 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 18 over Chippewa River built?

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

What condition is Csah 18 over Chippewa River 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 July 2024.

How much traffic does Csah 18 over Chippewa River carry?

About 810 vehicles per day (2019 count).

How long is Csah 18 over Chippewa River?

The structure is 109 ft (33.1 m) long with a longest span of 107 ft (32.5 m) and a deck 43 ft wide.

Who owns Csah 18 over Chippewa River?

It is owned by the County Highway Agency.