US Bridges

Turnerville Road over N Branch Clam River

Fair

Missaukee County, Michigan · Section 35/36 T21N R7W · Structure no. 000000000007066

Built
1987
38 years old
Condition
Fair
inspected May 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
64 ft
1 main span
Daily traffic
191
2018 count
Owner
County
County Highway Agency

About this bridge

Turnerville Road over N Branch Clam River is a prestressed concrete box beam or girders - multiple carrying Turnerville Road over N Branch Clam River in Missaukee County, Michigan. It was built in 1987, so it is 38 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 191 vehicles a day, projected to reach 320 by 2038. The structure is 64 ft (19.5 m) long and 31 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesTurnerville Road
CrossesN Branch Clam River
LocationSection 35/36 T21N R7W
RouteCounty Highway 0
CountyMissaukee County
StateMichigan
Coordinates44.17428, -85.11305
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating70.3 US tons
Inventory rating25.4 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20 + Mod
Structure length64 ft (19.5 m)
Longest span64 ft (19.5 m)
Deck width31 ft (9.4 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic191 (2018)
Projected traffic320 by 2038
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 Turnerville Road over N Branch Clam River built?

It was built in 1987, making it 38 years old in 2025.

What condition is Turnerville Road over N Branch Clam 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 May 2023.

How much traffic does Turnerville Road over N Branch Clam River carry?

About 191 vehicles per day (2018 count).

How long is Turnerville Road over N Branch Clam River?

The structure is 64 ft (19.5 m) long with a longest span of 64 ft (19.5 m) and a deck 31 ft wide.

Who owns Turnerville Road over N Branch Clam River?

It is owned by the County Highway Agency.