US Bridges

RD N3015 over Sturgeon River

FairClosed to traffic

Dickinson County, Michigan · 200 Ft W of Foster Cty RD · Structure no. 000000000014727

Built
1997
28 years old
Condition
Fair
inspected April 2025
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
63 ft
2 main spans
Daily traffic
99
Owner
State
Other State Agency

About this bridge

RD N3015 over Sturgeon River is a wood or timber stringer/multi-beam or girder carrying RD N3015 over Sturgeon River in Dickinson County, Michigan. It was built in 1997, so it is 28 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. Its operating status is: closed to all traffic.

It carries about 99 vehicles a day. The structure is 63 ft (19.2 m) long and 14 ft wide.

Location

Open in Google Maps
CarriesRD N3015
CrossesSturgeon River
Location200 Ft W of Foster Cty RD
RouteState Lands Road 0
CountyDickinson County
StateMichigan
Coordinates45.8294, -87.7274
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.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2025
Inspection intervalevery 6 months
Operating statusClosed to all traffic
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy0: Immediate repair necessary to put back in service
Approach roadway alignment0: Immediate repair necessary to put back in service
Operating rating24.3 US tons
Inventory rating17.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans2
Design loadUnknown
Structure length63 ft (19.2 m)
Longest span29 ft (8.9 m)
Deck width14 ft (4.4 m)
Roadway width13 ft (4.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic99 (—)
Projected traffic—
Trucks—
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a toll road
National Highway SystemNo

Ownership and planned work

OwnerOther State Agency
Maintained byOther State 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 RD N3015 over Sturgeon River built?

It was built in 1997, making it 28 years old in 2025.

What condition is RD N3015 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 April 2025.

How much traffic does RD N3015 over Sturgeon River carry?

About 99 vehicles per day (latest count).

How long is RD N3015 over Sturgeon River?

The structure is 63 ft (19.2 m) long with a longest span of 29 ft (8.9 m) and a deck 14 ft wide.

Who owns RD N3015 over Sturgeon River?

It is owned by the Other State Agency.