US Bridges

Pike Lake Road over Cascade River

Fair

Cook County, Minnesota · 3.0 MI NE of JCT CR 45 · Structure no. 090902000001009

Built
1961
64 years old, rebuilt 2016
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
51 ft
1 main span
Daily traffic
25
2020 count
Owner
Federal
U.S. Forest Service

About this bridge

Pike Lake Road over Cascade River is a steel stringer/multi-beam or girder carrying Pike Lake Road over Cascade River in Cook County, Minnesota. It was built in 1961 and reconstructed in 2016, so it is 64 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 6 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 25 vehicles a day, projected to reach 37 by 2045. The structure is 51 ft (15.4 m) long and 16 ft wide. If it were closed, the detour would be 12.4 mi (20 km).

Location

Open in Google Maps
CarriesPike Lake Road
CrossesCascade River
Location3.0 MI NE of JCT CR 45
RouteFederal Lands Road 157
CountyCook County
StateMinnesota
Coordinates47.78987, -90.52668
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38.9 US tons
Inventory rating30 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length51 ft (15.4 m)
Longest span50 ft (15.1 m)
Deck width16 ft (4.9 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2020)
Projected traffic37 by 2045
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed12.4 mi (20 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerU.S. Forest Service
Maintained byU.S. Forest Service
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Pike Lake Road over Cascade River built?

It was built in 1961, making it 64 years old in 2025. It was reconstructed in 2016.

What condition is Pike Lake Road over Cascade 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 Pike Lake Road over Cascade River carry?

About 25 vehicles per day (2020 count).

How long is Pike Lake Road over Cascade River?

The structure is 51 ft (15.4 m) long with a longest span of 50 ft (15.1 m) and a deck 16 ft wide.

Who owns Pike Lake Road over Cascade River?

It is owned by the U.S. Forest Service.