US Bridges

Tone Road over Waiska River

Fair

Chippewa County, Michigan · 3.5 MI E Brimley · Structure no. 000000000001665

Built
1990
35 years old
Condition
Fair
inspected June 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
150 ft
2 main spans
Daily traffic
21
2005 count
Owner
County
County Highway Agency

About this bridge

Tone Road over Waiska River is a prestressed concrete box beam or girders - multiple carrying Tone Road over Waiska River in Chippewa County, Michigan. It was built in 1990, so it is 35 years old, younger 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 21 vehicles a day, projected to reach 35 by 2019. The structure is 150 ft (45.7 m) long and 30 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesTone Road
CrossesWaiska River
Location3.5 MI E Brimley
RouteCounty Highway 0
CountyChippewa County
StateMichigan
Coordinates46.39696, -84.53307
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.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
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 geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.9 US tons
Inventory rating41.1 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckCorrugated steel
Main spans2
Design loadHS 20
Structure length150 ft (45.7 m)
Longest span73 ft (22.2 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21 (2005)
Projected traffic35 by 2019
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Tone Road over Waiska River built?

It was built in 1990, making it 35 years old in 2025.

What condition is Tone Road 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 June 2023.

How much traffic does Tone Road over Waiska River carry?

About 21 vehicles per day (2005 count).

How long is Tone Road over Waiska River?

The structure is 150 ft (45.7 m) long with a longest span of 73 ft (22.2 m) and a deck 30 ft wide.

Who owns Tone Road over Waiska River?

It is owned by the County Highway Agency.