US Bridges

Csah 11 over Snake River

FairPosted for load

Kanabec County, Minnesota · 0.4 MI S of JCT Csah 17 · Structure no. 33527

Built
1988
37 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
186 ft
3 main spans
Daily traffic
1,100
2018 count
Owner
County
County Highway Agency

About this bridge

Csah 11 over Snake River is a prestressed concrete stringer/multi-beam or girder carrying Csah 11 over Snake River in Kanabec County, Minnesota. It was built in 1988, so it is 37 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. Its operating status is: posted for load restriction.

It carries about 1,100 vehicles a day, projected to reach 1,050 by 2038. The structure is 186 ft (56.6 m) long and 43 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Location

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CarriesCsah 11
CrossesSnake River
Location0.4 MI S of JCT Csah 17
RouteCounty Highway 11
CountyKanabec County
StateMinnesota
Coordinates45.8116, -93.26593
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 inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating34.2 US tons
Inventory rating20.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length186 ft (56.6 m)
Longest span60 ft (18.3 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,100 (2018)
Projected traffic1,050 by 2038
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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 11 over Snake River built?

It was built in 1988, making it 37 years old in 2025.

What condition is Csah 11 over Snake 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 November 2023.

How much traffic does Csah 11 over Snake River carry?

About 1,100 vehicles per day (2018 count).

How long is Csah 11 over Snake River?

The structure is 186 ft (56.6 m) long with a longest span of 60 ft (18.3 m) and a deck 43 ft wide.

Who owns Csah 11 over Snake River?

It is owned by the County Highway Agency.