US Bridges

FH 7 Spur 933 over Stony River

Fair

Lake County, Minnesota · .15 MI S of JCT TH 1 · Structure no. 090907000001038

Built
1984
41 years old
Condition
Fair
inspected September 2024
Type
Culvert
Wood or Timber
Length
48 ft
6 main spans
Daily traffic
50
Owner
Federal
U.S. Forest Service

About this bridge

FH 7 Spur 933 over Stony River is a wood or timber culvert carrying FH 7 Spur 933 over Stony River in Lake County, Minnesota. It was built in 1984, so it is 41 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 50 vehicles a day, projected to reach 75 by 2045. The structure is 48 ft (14.6 m) long. If it were closed, the detour would be 98.2 mi (158 km).

Location

Open in Google Maps
CarriesFH 7 Spur 933
CrossesStony River
Location.15 MI S of JCT TH 1
RouteFederal Lands Road 933
CountyLake County
StateMinnesota
Coordinates47.64806, -91.57389
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment6: Equal to present minimum criteria
Operating rating41.8 US tons
Inventory rating32.2 US tons

Structure

Structure typeCulvert
MaterialWood or Timber
DeckNot applicable
Main spans6
Design loadUnknown
Structure length48 ft (14.6 m)
Longest span16 ft (4.9 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (—)
Projected traffic75 by 2045
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.2 mi (158 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 FH 7 Spur 933 over Stony River built?

It was built in 1984, making it 41 years old in 2025.

What condition is FH 7 Spur 933 over Stony 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 September 2024.

How much traffic does FH 7 Spur 933 over Stony River carry?

About 50 vehicles per day (latest count).

How long is FH 7 Spur 933 over Stony River?

The structure is 48 ft (14.6 m) long with a longest span of 16 ft (4.9 m).

Who owns FH 7 Spur 933 over Stony River?

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