US Bridges

Csah 42 over Wing River

PoorPosted for load

Otter Tail County, Minnesota · 0.1 MI S of JCT Csah 48 · Structure no. 56511

Built
1966
59 years old
Condition
Poor
inspected October 2024
Type
Channel Beam
Prestressed Concrete
Length
31 ft
1 main span
Daily traffic
245
2019 count
Owner
County
County Highway Agency

About this bridge

Csah 42 over Wing River is a prestressed concrete channel beam carrying Csah 42 over Wing River in Otter Tail County, Minnesota. It was built in 1966, so it is 59 years old, older than the Minnesota average of 38.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 245 vehicles a day, projected to reach 240 by 2039. The structure is 31 ft (9.4 m) long and 34 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCsah 42
CrossesWing River
Location0.1 MI S of JCT Csah 48
RouteCounty Highway 42
Coordinates46.22394, -95.20882
Functional classRural Minor Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating23.5 US tons
Inventory rating14 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadH 20
Structure length31 ft (9.4 m)
Longest span29 ft (8.8 m)
Deck width34 ft (10.5 m)
Roadway width33 ft (10 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic245 (2019)
Projected traffic240 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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$169.3 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Csah 42 over Wing River built?

It was built in 1966, making it 59 years old in 2025.

What condition is Csah 42 over Wing River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2024.

How much traffic does Csah 42 over Wing River carry?

About 245 vehicles per day (2019 count).

How long is Csah 42 over Wing River?

The structure is 31 ft (9.4 m) long with a longest span of 29 ft (8.8 m) and a deck 34 ft wide.

Who owns Csah 42 over Wing River?

It is owned by the County Highway Agency.