US Bridges

Csah 9 over Chippewa River

Fair

Chippewa County, Minnesota · 0.5 MI W of JCT Csah 9 · Structure no. 12519

Built
1971
54 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
200 ft
3 main spans
Daily traffic
85
2022 count
Owner
County
County Highway Agency

About this bridge

Csah 9 over Chippewa River is a steel continuous stringer/multi-beam or girder carrying Csah 9 over Chippewa River in Chippewa County, Minnesota. It was built in 1971, so it is 54 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.

It carries about 85 vehicles a day, projected to reach 105 by 2042. The structure is 200 ft (61 m) long and 32 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesCsah 9
CrossesChippewa River
Location0.5 MI W of JCT Csah 9
RouteCounty Highway 9
Coordinates45.07952, -95.78595
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.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating67.5 US tons
Inventory rating40.5 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length200 ft (61 m)
Longest span75 ft (22.9 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic85 (2022)
Projected traffic105 by 2042
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 9 over Chippewa River built?

It was built in 1971, making it 54 years old in 2025.

What condition is Csah 9 over Chippewa 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 August 2024.

How much traffic does Csah 9 over Chippewa River carry?

About 85 vehicles per day (2022 count).

How long is Csah 9 over Chippewa River?

The structure is 200 ft (61 m) long with a longest span of 75 ft (22.9 m) and a deck 32 ft wide.

Who owns Csah 9 over Chippewa River?

It is owned by the County Highway Agency.