US Bridges

Waiska River Trail over Waiska River

Fair

Chippewa County, Michigan · 5 MI SE Raco · Structure no. 091004000001047

Built
1976
49 years old
Condition
Fair
inspected October 2024
Type
Culvert
Steel
Length
28 ft
2 main spans
Daily traffic
10
1998 count
Owner
Federal
U.S. Forest Service

About this bridge

Waiska River Trail over Waiska River is a steel culvert carrying Waiska River Trail over Waiska River in Chippewa County, Michigan. It was built in 1976, so it is 49 years old, older than the Michigan average of 48.3 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 10 vehicles a day, projected to reach 15 by 2018. The structure is 28 ft (8.5 m) long. If it were closed, the detour would be 98.2 mi (158 km).

CarriesWaiska River Trail
CrossesWaiska River
Location5 MI SE Raco
RouteFederal Lands Road 3130
Coordinates46.32553, -84.67692
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 protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
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
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating87.2 US tons
Inventory rating67.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadUnknown
Structure length28 ft (8.5 m)
Longest span11 ft (3.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (1998)
Projected traffic15 by 2018
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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$8,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Waiska River Trail over Waiska River built?

It was built in 1976, making it 49 years old in 2025.

What condition is Waiska River Trail over Waiska 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 Waiska River Trail over Waiska River carry?

About 10 vehicles per day (1998 count).

How long is Waiska River Trail over Waiska River?

The structure is 28 ft (8.5 m) long with a longest span of 11 ft (3.5 m).

Who owns Waiska River Trail over Waiska River?

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