US Bridges

Csah 8 over Bostick Creek

Fair

Lake of the Woods County, Minnesota · 3.0 MI W of JCT TH 172 · Structure no. 39504

Built
1977
48 years old
Condition
Fair
inspected September 2023
Type
Channel Beam
Prestressed Concrete
Length
75 ft
3 main spans
Daily traffic
631
2021 count
Owner
County
County Highway Agency

About this bridge

Csah 8 over Bostick Creek is a prestressed concrete channel beam carrying Csah 8 over Bostick Creek in Lake of the Woods County, Minnesota. It was built in 1977, so it is 48 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 631 vehicles a day, projected to reach 450 by 2041. The structure is 75 ft (22.9 m) long and 41 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

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CarriesCsah 8
CrossesBostick Creek
Location3.0 MI W of JCT TH 172
RouteCounty Highway 8
CountyLake of the Woods County
StateMinnesota
Coordinates48.83016, -94.77785
Functional classRural Major Collector

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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to 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 rating80.2 US tons
Inventory rating48.2 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length75 ft (22.9 m)
Longest span25 ft (7.7 m)
Deck width41 ft (12.6 m)
Roadway width37 ft (11.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic631 (2021)
Projected traffic450 by 2041
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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 8 over Bostick Creek built?

It was built in 1977, making it 48 years old in 2025.

What condition is Csah 8 over Bostick Creek 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 September 2023.

How much traffic does Csah 8 over Bostick Creek carry?

About 631 vehicles per day (2021 count).

How long is Csah 8 over Bostick Creek?

The structure is 75 ft (22.9 m) long with a longest span of 25 ft (7.7 m) and a deck 41 ft wide.

Who owns Csah 8 over Bostick Creek?

It is owned by the County Highway Agency.