US Bridges

Csah 1 over N Br Rapid River

FairPosted for load

Lake of the Woods County, Minnesota · 0.6 MI S of N JCT Csah 1 · Structure no. 39503

Built
1966
59 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
111 ft
3 main spans
Daily traffic
125
2022 count
Owner
County
County Highway Agency

About this bridge

Csah 1 over N Br Rapid River is a steel continuous stringer/multi-beam or girder carrying Csah 1 over N Br Rapid River in Lake of the Woods County, Minnesota. It was built in 1966, so it is 59 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. Its operating status is: posted for load restriction.

It carries about 125 vehicles a day, projected to reach 150 by 2042. The structure is 111 ft (33.8 m) long and 33 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

CarriesCsah 1
CrossesN Br Rapid River
Location0.6 MI S of N JCT Csah 1
RouteCounty Highway 1
Coordinates48.53223, -94.64732
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45 US tons
Inventory rating27 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length111 ft (33.8 m)
Longest span42 ft (12.9 m)
Deck width33 ft (10 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic125 (2022)
Projected traffic150 by 2042
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 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 1 over N Br Rapid River built?

It was built in 1966, making it 59 years old in 2025.

What condition is Csah 1 over N Br Rapid River 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 October 2023.

How much traffic does Csah 1 over N Br Rapid River carry?

About 125 vehicles per day (2022 count).

How long is Csah 1 over N Br Rapid River?

The structure is 111 ft (33.8 m) long with a longest span of 42 ft (12.9 m) and a deck 33 ft wide.

Who owns Csah 1 over N Br Rapid River?

It is owned by the County Highway Agency.