US Bridges

Csah 16 over Cottonwood River

Good

Brown County, Minnesota · 2.2 MI S of JCT TH 14 · Structure no. 08007

Built
2012
13 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
194 ft
3 main spans
Daily traffic
567
2022 count
Owner
County
County Highway Agency

About this bridge

Csah 16 over Cottonwood River is a prestressed concrete stringer/multi-beam or girder carrying Csah 16 over Cottonwood River in Brown County, Minnesota. It was built in 2012, so it is 13 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 567 vehicles a day, roughly 10% of them trucks, projected to reach 560 by 2042. The structure is 194 ft (59.1 m) long and 43 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesCsah 16
CrossesCottonwood River
Location2.2 MI S of JCT TH 14
RouteCounty Highway 16
Coordinates44.23143, -94.90666
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65 US tons
Inventory rating50.4 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length194 ft (59.1 m)
Longest span74 ft (22.6 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic567 (2022)
Projected traffic560 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 16 over Cottonwood River built?

It was built in 2012, making it 13 years old in 2025.

What condition is Csah 16 over Cottonwood 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 October 2023.

How much traffic does Csah 16 over Cottonwood River carry?

About 567 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is Csah 16 over Cottonwood River?

The structure is 194 ft (59.1 m) long with a longest span of 74 ft (22.6 m) and a deck 43 ft wide.

Who owns Csah 16 over Cottonwood River?

It is owned by the County Highway Agency.