US Bridges

Csah 92 over Dempsey Creek

Fair

St. Louis County, Minnesota · 1.3 MI W of JCT CR 592 · Structure no. 7752

Built
1941
84 years old
Condition
Fair
inspected July 2023
Type
Culvert
Concrete
Length
26 ft
2 main spans
Daily traffic
300
2019 count
Owner
County
County Highway Agency

About this bridge

Csah 92 over Dempsey Creek is a concrete culvert carrying Csah 92 over Dempsey Creek in St. Louis County, Minnesota. It was built in 1941, so it is 84 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 300 vehicles a day, projected to reach 305 by 2039. The structure is 26 ft (8 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesCsah 92
CrossesDempsey Creek
Location1.3 MI W of JCT CR 592
RouteCounty Highway 92
CountySt. Louis County
StateMinnesota
Coordinates47.43996, -92.79607
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating28.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length26 ft (8 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic300 (2019)
Projected traffic305 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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$79 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Csah 92 over Dempsey Creek built?

It was built in 1941, making it 84 years old in 2025.

What condition is Csah 92 over Dempsey 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 July 2023.

How much traffic does Csah 92 over Dempsey Creek carry?

About 300 vehicles per day (2019 count).

How long is Csah 92 over Dempsey Creek?

The structure is 26 ft (8 m) long with a longest span of 12 ft (3.7 m).

Who owns Csah 92 over Dempsey Creek?

It is owned by the County Highway Agency.