US Bridges

10th Ave over Chippewa River

FairPosted for load

Mecosta County, Michigan · 0.3 MI S of 20 Mile Road · Structure no. 000000000006778

Built
1975
50 years old
Condition
Fair
inspected August 2023
Type
Slab
Wood or Timber
Length
105 ft
4 main spans
Daily traffic
223
2019 count
Owner
County
County Highway Agency

About this bridge

10th Ave over Chippewa River is a wood or timber slab carrying 10th Ave over Chippewa River in Mecosta County, Michigan. It was built in 1975, so it is 50 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. Its operating status is: posted for load restriction.

It carries about 223 vehicles a day, roughly 9% of them trucks, projected to reach 259 by 2039. The structure is 105 ft (31.9 m) long and 32 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
Carries10th Ave
CrossesChippewa River
Location0.3 MI S of 20 Mile Road
RouteCounty Highway 0
CountyMecosta County
StateMichigan
Coordinates43.74996, -85.10827
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusPosted for load 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating39.2 US tons
Inventory rating25.7 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans4
Design loadHS 20
Structure length105 ft (31.9 m)
Longest span26 ft (7.9 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic223 (2019)
Projected traffic259 by 2039
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$259,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 10th Ave over Chippewa River built?

It was built in 1975, making it 50 years old in 2025.

What condition is 10th Ave over Chippewa 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 August 2023.

How much traffic does 10th Ave over Chippewa River carry?

About 223 vehicles per day (2019 count), of which roughly 9% are trucks.

How long is 10th Ave over Chippewa River?

The structure is 105 ft (31.9 m) long with a longest span of 26 ft (7.9 m) and a deck 32 ft wide.

Who owns 10th Ave over Chippewa River?

It is owned by the County Highway Agency.