US Bridges

Csah 75 over Leaf River

Fair

Otter Tail County, Minnesota · 0.7 MI N of JCT TH 10 · Structure no. 95065

Built
1982
43 years old
Condition
Fair
inspected November 2023
Type
Culvert
Steel
Length
95 ft
3 main spans
Daily traffic
780
2019 count
Owner
County
County Highway Agency

About this bridge

Csah 75 over Leaf River is a steel culvert carrying Csah 75 over Leaf River in Otter Tail County, Minnesota. It was built in 1982, so it is 43 years old, older than the Minnesota average of 38.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 780 vehicles a day, projected to reach 670 by 2039. The structure is 95 ft (28.9 m) long. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesCsah 75
CrossesLeaf River
Location0.7 MI N of JCT TH 10
RouteCounty Highway 75
CountyOtter Tail County
StateMinnesota
Coordinates46.46902, -95.17624
Functional classRural Minor Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.6 US tons
Inventory rating34.6 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans3
Design loadUnknown
Structure length95 ft (28.9 m)
Longest span26 ft (8 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic780 (2019)
Projected traffic670 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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$272 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Csah 75 over Leaf River built?

It was built in 1982, making it 43 years old in 2025.

What condition is Csah 75 over Leaf River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in November 2023.

How much traffic does Csah 75 over Leaf River carry?

About 780 vehicles per day (2019 count).

How long is Csah 75 over Leaf River?

The structure is 95 ft (28.9 m) long with a longest span of 26 ft (8 m).

Who owns Csah 75 over Leaf River?

It is owned by the County Highway Agency.