US Bridges

Csah 27 over Red Lake River

Good

Pennington County, Minnesota · 1.1 MI S of JCT Csah 3 · Structure no. 57521

Built
1999
26 years old
Condition
Good
inspected October 2024
Type
Slab
Concrete Continuous
Length
150 ft
3 main spans
Daily traffic
360
2019 count
Owner
County
County Highway Agency

About this bridge

Csah 27 over Red Lake River is a concrete continuous slab carrying Csah 27 over Red Lake River in Pennington County, Minnesota. It was built in 1999, so it is 26 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 360 vehicles a day, projected to reach 330 by 2039. The structure is 150 ft (45.6 m) long and 38 ft wide. If it were closed, the detour would be 16.2 mi (26 km).

CarriesCsah 27
CrossesRed Lake River
Location1.1 MI S of JCT Csah 3
RouteCounty Highway 27
Coordinates48.00624, -95.62625
Functional classRural Minor Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating102.2 US tons
Inventory rating61.2 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length150 ft (45.6 m)
Longest span59 ft (18 m)
Deck width38 ft (11.7 m)
Roadway width35 ft (10.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic360 (2019)
Projected traffic330 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.2 mi (26 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 27 over Red Lake River built?

It was built in 1999, making it 26 years old in 2025.

What condition is Csah 27 over Red Lake 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 October 2024.

How much traffic does Csah 27 over Red Lake River carry?

About 360 vehicles per day (2019 count).

How long is Csah 27 over Red Lake River?

The structure is 150 ft (45.6 m) long with a longest span of 59 ft (18 m) and a deck 38 ft wide.

Who owns Csah 27 over Red Lake River?

It is owned by the County Highway Agency.