US Bridges

Csah 34 over US 10

Poor

Otter Tail County, Minnesota · 2.0 MI W of JCT TH 78 · Structure no. 56022

Built
1973
52 years old
Condition
Poor
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
324 ft
4 main spans
Daily traffic
2,500
2019 count
Owner
State
State Highway Agency

About this bridge

Csah 34 over US 10 is a steel continuous stringer/multi-beam or girder carrying Csah 34 over US 10 in Otter Tail County, Minnesota. It was built in 1973, so it is 52 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.

It carries about 2,500 vehicles a day, projected to reach 2,100 by 2039. The structure is 324 ft (98.8 m) long and 40 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesCsah 34
CrossesUS 10
Location2.0 MI W of JCT TH 78
RouteCounty Highway 34
CountyOtter Tail County
StateMinnesota
Coordinates46.60004, -95.60432
Functional classRural Major 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.1 US tons
Inventory rating37.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length324 ft (98.8 m)
Longest span111 ft (33.9 m)
Deck width40 ft (12.1 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,500 (2019)
Projected traffic2,100 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Csah 34 over US 10 built?

It was built in 1973, making it 52 years old in 2025.

What condition is Csah 34 over US 10 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 34 over US 10 carry?

About 2,500 vehicles per day (2019 count).

How long is Csah 34 over US 10?

The structure is 324 ft (98.8 m) long with a longest span of 111 ft (33.9 m) and a deck 40 ft wide.

Who owns Csah 34 over US 10?

It is owned by the State Highway Agency.