US Bridges

Csah 65 over Dark River

Good

St. Louis County, Minnesota · 1.2 MI W of JCT Csah 25 · Structure no. 69K59

Built
2019
6 years old
Condition
Good
inspected June 2023
Type
Culvert
Concrete
Length
23 ft
1 main span
Daily traffic
42
2018 count
Owner
County
County Highway Agency

About this bridge

Csah 65 over Dark River is a concrete culvert carrying Csah 65 over Dark River in St. Louis County, Minnesota. It was built in 2019, so it is 6 years old, younger than the Minnesota average of 38.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 42 vehicles a day, projected to reach 53 by 2038. The structure is 23 ft (7 m) long. If it were closed, the detour would be 6.8 mi (11 km).

CarriesCsah 65
CrossesDark River
Location1.2 MI W of JCT Csah 25
RouteCounty Highway 65
Coordinates47.65858, -92.7975
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionJune 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71.1 US tons
Inventory rating55 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHL 93
Structure length23 ft (7 m)
Longest span23 ft (7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic42 (2018)
Projected traffic53 by 2038
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Csah 65 over Dark River built?

It was built in 2019, making it 6 years old in 2025.

What condition is Csah 65 over Dark River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2023.

How much traffic does Csah 65 over Dark River carry?

About 42 vehicles per day (2018 count).

How long is Csah 65 over Dark River?

The structure is 23 ft (7 m) long with a longest span of 23 ft (7 m).

Who owns Csah 65 over Dark River?

It is owned by the County Highway Agency.