US Bridges

Csah 9 over Schoolcraft River

Good

Hubbard County, Minnesota · 0.9 MI E of JCT Csah 29 · Structure no. 29529

Built
2009
16 years old
Condition
Good
inspected September 2023
Type
Slab
Concrete Continuous
Length
84 ft
3 main spans
Daily traffic
512
2021 count
Owner
County
County Highway Agency

About this bridge

Csah 9 over Schoolcraft River is a concrete continuous slab carrying Csah 9 over Schoolcraft River in Hubbard County, Minnesota. It was built in 2009, so it is 16 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 512 vehicles a day, projected to reach 520 by 2041. The structure is 84 ft (25.6 m) long and 39 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesCsah 9
CrossesSchoolcraft River
Location0.9 MI E of JCT Csah 29
RouteCounty Highway 9
Coordinates47.36091, -94.92752
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 inspectionSeptember 2023
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 rating78.3 US tons
Inventory rating46.8 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length84 ft (25.6 m)
Longest span31 ft (9.4 m)
Deck width39 ft (12 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic512 (2021)
Projected traffic520 by 2041
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Csah 9 over Schoolcraft River built?

It was built in 2009, making it 16 years old in 2025.

What condition is Csah 9 over Schoolcraft 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 September 2023.

How much traffic does Csah 9 over Schoolcraft River carry?

About 512 vehicles per day (2021 count).

How long is Csah 9 over Schoolcraft River?

The structure is 84 ft (25.6 m) long with a longest span of 31 ft (9.4 m) and a deck 39 ft wide.

Who owns Csah 9 over Schoolcraft River?

It is owned by the County Highway Agency.