US Bridges

C-3 Pool Road over Driggs River

Fair

Schoolcraft County, Michigan · Sec 7 T45N R14W · Structure no. 000031510-00128

Built
1942
83 years old
Condition
Fair
inspected August 2023
Type
Tee Beam
Concrete
Length
57 ft
4 main spans
Daily traffic
10
2023 count
Owner
Federal
Bureau of Fish and Wildlife

About this bridge

C-3 Pool Road over Driggs River is a concrete tee beam carrying C-3 Pool Road over Driggs River in Schoolcraft County, Michigan. It was built in 1942, so it is 83 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 10 by 2043. The structure is 57 ft (17.4 m) long and 17 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

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CarriesC-3 Pool Road
CrossesDriggs River
LocationSec 7 T45N R14W
RouteFederal Lands Road 0
CountySchoolcraft County
StateMichigan
Coordinates46.31633, -86.109
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating37 US tons
Inventory rating22 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadUnknown
Structure length57 ft (17.4 m)
Longest span14 ft (4.3 m)
Deck width17 ft (5.3 m)
Roadway width15 ft (4.7 m)
Vertical clearance over deck107 ft (32.7 m)

Traffic and service

Average daily traffic10 (2023)
Projected traffic10 by 2043
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerBureau of Fish and Wildlife
Maintained byBureau of Fish and Wildlife
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 C-3 Pool Road over Driggs River built?

It was built in 1942, making it 83 years old in 2025.

What condition is C-3 Pool Road over Driggs 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 C-3 Pool Road over Driggs River carry?

About 10 vehicles per day (2023 count).

How long is C-3 Pool Road over Driggs River?

The structure is 57 ft (17.4 m) long with a longest span of 14 ft (4.3 m) and a deck 17 ft wide.

Who owns C-3 Pool Road over Driggs River?

It is owned by the Bureau of Fish and Wildlife.