US Bridges

Csah 24 over Ten Mile Creek

Fair

St. Louis County, Minnesota · 3.5 MI S of JCT Csah 23 · Structure no. 93555

Built
1981
44 years old
Condition
Fair
inspected September 2023
Type
Culvert
Concrete
Length
27 ft
2 main spans
Daily traffic
85
2019 count
Owner
County
County Highway Agency

About this bridge

Csah 24 over Ten Mile Creek is a concrete culvert carrying Csah 24 over Ten Mile Creek in St. Louis County, Minnesota. It was built in 1981, so it is 44 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 85 vehicles a day, projected to reach 90 by 2039. The structure is 27 ft (8.1 m) long. If it were closed, the detour would be 36 mi (58 km).

Location

Open in Google Maps
CarriesCsah 24
CrossesTen Mile Creek
Location3.5 MI S of JCT Csah 23
RouteCounty Highway 24
CountySt. Louis County
StateMinnesota
Coordinates48.07701, -92.48918
Functional classRural Major 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.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2023
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
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length27 ft (8.1 m)
Longest span10 ft (3.2 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic85 (2019)
Projected traffic90 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed36 mi (58 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 24 over Ten Mile Creek built?

It was built in 1981, making it 44 years old in 2025.

What condition is Csah 24 over Ten Mile Creek 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 September 2023.

How much traffic does Csah 24 over Ten Mile Creek carry?

About 85 vehicles per day (2019 count).

How long is Csah 24 over Ten Mile Creek?

The structure is 27 ft (8.1 m) long with a longest span of 10 ft (3.2 m).

Who owns Csah 24 over Ten Mile Creek?

It is owned by the County Highway Agency.