US Bridges

White RD (n. End) over Sturgeon River

Fair

Cheboygan County, Michigan · SEC.1 T34N R3W · Structure no. 000000000001548

Built
1985
40 years old
Condition
Fair
inspected July 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
48 ft
1 main span
Daily traffic
380
2005 count
Owner
County
County Highway Agency

About this bridge

White RD (n. End) over Sturgeon River is a prestressed concrete box beam or girders - multiple carrying White RD (n. End) over Sturgeon River in Cheboygan County, Michigan. It was built in 1985, so it is 40 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 5 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 380 vehicles a day, projected to reach 700 by 2025. The structure is 48 ft (14.6 m) long and 31 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesWhite RD (n. End)
CrossesSturgeon River
LocationSEC.1 T34N R3W
RouteCounty Highway 0
CountyCheboygan County
StateMichigan
Coordinates45.37204, -84.62429
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.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating50 US tons
Inventory rating38.6 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length48 ft (14.6 m)
Longest span48 ft (14.6 m)
Deck width31 ft (9.4 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic380 (2005)
Projected traffic700 by 2025
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 White RD (n. End) over Sturgeon River built?

It was built in 1985, making it 40 years old in 2025.

What condition is White RD (n. End) over Sturgeon 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 July 2023.

How much traffic does White RD (n. End) over Sturgeon River carry?

About 380 vehicles per day (2005 count).

How long is White RD (n. End) over Sturgeon River?

The structure is 48 ft (14.6 m) long with a longest span of 48 ft (14.6 m) and a deck 31 ft wide.

Who owns White RD (n. End) over Sturgeon River?

It is owned by the County Highway Agency.