US Bridges

Csah 3 over Red Lake River

Fair

Pennington County, Minnesota · 0.5 MI E of JCT TH 32 · Structure no. 7248

Built
1962
63 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
310 ft
4 main spans
Daily traffic
2,100
2019 count
Owner
County
County Highway Agency

About this bridge

Csah 3 over Red Lake River is a steel continuous stringer/multi-beam or girder carrying Csah 3 over Red Lake River in Pennington County, Minnesota. It was built in 1962, so it is 63 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 2,100 vehicles a day, projected to reach 2,000 by 2039. The structure is 310 ft (94.4 m) long and 32 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesCsah 3
CrossesRed Lake River
Location0.5 MI E of JCT TH 32
RouteCounty Highway 3
CountyPennington County
StateMinnesota
Coordinates48.02044, -96.20299
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.1 US tons
Inventory rating33.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadH 20
Structure length310 ft (94.4 m)
Longest span84 ft (25.5 m)
Deck width32 ft (9.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,100 (2019)
Projected traffic2,000 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 3 over Red Lake River built?

It was built in 1962, making it 63 years old in 2025.

What condition is Csah 3 over Red Lake River 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 October 2024.

How much traffic does Csah 3 over Red Lake River carry?

About 2,100 vehicles per day (2019 count).

How long is Csah 3 over Red Lake River?

The structure is 310 ft (94.4 m) long with a longest span of 84 ft (25.5 m) and a deck 32 ft wide.

Who owns Csah 3 over Red Lake River?

It is owned by the County Highway Agency.