Csah 40 over Clearwater River

Good

Wright County, Minnesota · 0.6 M W of JCT Csah 24 · Structure no. 86531

Built: 2010; 15 years old
Condition: Good; inspected September 2023
Type: Slab; Concrete Continuous
Length: 91 ft; 3 main spans
Daily traffic: 1,350; 2016 count
Owner: County; County Highway Agency

About this bridge

Csah 40 over Clearwater River is a concrete continuous slab carrying Csah 40 over Clearwater River in Wright County, Minnesota. It was built in 2010, so it is 15 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 1,350 vehicles a day, projected to reach 1,350 by 2039. The structure is 91 ft (27.6 m) long and 39 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

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CarriesCsah 40

CrossesClearwater River

Location0.6 M W of JCT Csah 24

RouteCounty Highway 40

CountyWright County

StateMinnesota

Coordinates45.38397, -94.07816

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.

Component	Rating	Meaning
Deck	7 Good	Some minor problems.
Superstructure	7 Good	Some minor problems.
Substructure	7 Good	Some minor problems.
Channel and channel protection	7 Good	Some minor problems.

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 geometry6: Equal to present minimum criteria

Waterway adequacy8: Equal to present desirable criteria

Approach roadway alignment8: Equal to present desirable criteria

Operating rating78.7 US tons

Inventory rating47.2 US tons

Structure

Structure typeSlab

MaterialConcrete Continuous

DeckConcrete, cast-in-place

Main spans3

Design loadHL 93

Structure length91 ft (27.6 m)

Longest span34 ft (10.4 m)

Deck width39 ft (12 m)

Roadway width36 ft (11 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,350 (2016)

Projected traffic1,350 by 2039

Trucks—

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 40 over Clearwater River built?

It was built in 2010, making it 15 years old in 2025.

What condition is Csah 40 over Clearwater 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 40 over Clearwater River carry?

About 1,350 vehicles per day (2016 count).

How long is Csah 40 over Clearwater River?

The structure is 91 ft (27.6 m) long with a longest span of 34 ft (10.4 m) and a deck 39 ft wide.

Who owns Csah 40 over Clearwater River?

It is owned by the County Highway Agency.