US Bridges

Csah 13 over Black River

Good

Red Lake County, Minnesota · 1.4 MI W of JCT Csah 9 · Structure no. 63J15

Built
2020
5 years old
Condition
Good
inspected November 2024
Type
Culvert
Concrete
Length
31 ft
2 main spans
Daily traffic
510
2018 count
Owner
County
County Highway Agency

About this bridge

Csah 13 over Black River is a concrete culvert carrying Csah 13 over Black River in Red Lake County, Minnesota. It was built in 2020, so it is 5 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 510 vehicles a day, projected to reach 510 by 2040. The structure is 31 ft (9.5 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCsah 13
CrossesBlack River
Location1.4 MI W of JCT Csah 9
RouteCounty Highway 13
Coordinates47.93435, -96.38521
Functional classRural Major 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 protection9 ExcellentNo problems noted.
Culvert9 ExcellentNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 24 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 rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHL 93
Structure length31 ft (9.5 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic510 (2018)
Projected traffic510 by 2040
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 13 over Black River built?

It was built in 2020, making it 5 years old in 2025.

What condition is Csah 13 over Black 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 November 2024.

How much traffic does Csah 13 over Black River carry?

About 510 vehicles per day (2018 count).

How long is Csah 13 over Black River?

The structure is 31 ft (9.5 m) long with a longest span of 14 ft (4.3 m).

Who owns Csah 13 over Black River?

It is owned by the County Highway Agency.