US Bridges

Csah 5 over Sturgeon River

Good

St. Louis County, Minnesota · 0.1 MI S of JCT Csah 65 · Structure no. 69A71

Built
2020
5 years old
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
89 ft
1 main span
Daily traffic
1,620
2019 count
Owner
County
County Highway Agency

About this bridge

Csah 5 over Sturgeon River is a prestressed concrete stringer/multi-beam or girder carrying Csah 5 over Sturgeon River in St. Louis 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 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 1,620 vehicles a day, projected to reach 2,100 by 2039. The structure is 89 ft (27.1 m) long and 40 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCsah 5
CrossesSturgeon River
Location0.1 MI S of JCT Csah 65
RouteCounty Highway 5
CountySt. Louis County
StateMinnesota
Coordinates47.65961, -93.01605
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.1 US tons
Inventory rating40.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length89 ft (27.1 m)
Longest span87 ft (26.4 m)
Deck width40 ft (12.1 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,620 (2019)
Projected traffic2,100 by 2039
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 5 over Sturgeon River built?

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

What condition is Csah 5 over Sturgeon 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 August 2023.

How much traffic does Csah 5 over Sturgeon River carry?

About 1,620 vehicles per day (2019 count).

How long is Csah 5 over Sturgeon River?

The structure is 89 ft (27.1 m) long with a longest span of 87 ft (26.4 m) and a deck 40 ft wide.

Who owns Csah 5 over Sturgeon River?

It is owned by the County Highway Agency.