US Bridges

Csah 34 over Turtle Creek (jd #24)

Fair

Freeborn County, Minnesota · 0.1 MI S of JCT Csah 25 · Structure no. 24515

Built
1977
48 years old
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
167 ft
3 main spans
Daily traffic
270
2017 count
Owner
County
County Highway Agency

About this bridge

Csah 34 over Turtle Creek (jd #24) is a prestressed concrete stringer/multi-beam or girder carrying Csah 34 over Turtle Creek (jd #24) in Freeborn County, Minnesota. It was built in 1977, so it is 48 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 5 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 270 vehicles a day, projected to reach 270 by 2039. The structure is 167 ft (50.8 m) long and 40 ft wide. If it were closed, the detour would be 13 mi (21 km).

CarriesCsah 34
CrossesTurtle Creek (jd #24)
Location0.1 MI S of JCT Csah 25
RouteCounty Highway 34
Coordinates43.70589, -93.09922
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
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.9 US tons
Inventory rating45.4 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length167 ft (50.8 m)
Longest span55 ft (16.8 m)
Deck width40 ft (12.1 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic270 (2017)
Projected traffic270 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13 mi (21 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 34 over Turtle Creek (jd #24) built?

It was built in 1977, making it 48 years old in 2025.

What condition is Csah 34 over Turtle Creek (jd #24) 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 December 2024.

How much traffic does Csah 34 over Turtle Creek (jd #24) carry?

About 270 vehicles per day (2017 count).

How long is Csah 34 over Turtle Creek (jd #24)?

The structure is 167 ft (50.8 m) long with a longest span of 55 ft (16.8 m) and a deck 40 ft wide.

Who owns Csah 34 over Turtle Creek (jd #24)?

It is owned by the County Highway Agency.