US Bridges

Csah 7 over Fall River

Good

Cook County, Minnesota · 2.7 MI W of JCT Csah 12 · Structure no. 16504

Built
1981
44 years old
Condition
Good
inspected September 2024
Type
Tee Beam
Prestressed Concrete
Length
83 ft
1 main span
Daily traffic
534
2022 count
Owner
County
County Highway Agency

About this bridge

Csah 7 over Fall River is a prestressed concrete tee beam carrying Csah 7 over Fall River in Cook County, Minnesota. It was built in 1981, so it is 44 years old, older 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 534 vehicles a day, projected to reach 590 by 2042. The structure is 83 ft (25.2 m) long and 36 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

CarriesCsah 7
CrossesFall River
Location2.7 MI W of JCT Csah 12
RouteCounty Highway 7
Coordinates47.75569, -90.39554
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 protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.5 US tons
Inventory rating26.6 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length83 ft (25.2 m)
Longest span80 ft (24.4 m)
Deck width36 ft (11 m)
Roadway width33 ft (10 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic534 (2022)
Projected traffic590 by 2042
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 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$160 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Csah 7 over Fall River built?

It was built in 1981, making it 44 years old in 2025.

What condition is Csah 7 over Fall 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 2024.

How much traffic does Csah 7 over Fall River carry?

About 534 vehicles per day (2022 count).

How long is Csah 7 over Fall River?

The structure is 83 ft (25.2 m) long with a longest span of 80 ft (24.4 m) and a deck 36 ft wide.

Who owns Csah 7 over Fall River?

It is owned by the County Highway Agency.