US Bridges

Southside RD over Grindstone Creek

FairPosted for load

Schoolcraft County, Michigan · 2.0 MI N of Hiawatha · Structure no. 000000000014594

Built
1991
34 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
40 ft
1 main span
Daily traffic
24
2015 count
Owner
County
County Highway Agency

About this bridge

Southside RD over Grindstone Creek is a steel stringer/multi-beam or girder carrying Southside RD over Grindstone Creek in Schoolcraft County, Michigan. It was built in 1991, so it is 34 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. Its operating status is: posted for load restriction.

It carries about 24 vehicles a day, projected to reach 53 by 2035. The structure is 40 ft (12.3 m) long and 16 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesSouthside RD
CrossesGrindstone Creek
Location2.0 MI N of Hiawatha
RouteCounty Highway 0
CountySchoolcraft County
StateMichigan
Coordinates46.14551, -86.24519
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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating7.8 US tons
Inventory rating6.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckWood or timber
Main spans1
Design loadUnknown
Structure length40 ft (12.3 m)
Longest span36 ft (11 m)
Deck width16 ft (4.9 m)
Roadway width15 ft (4.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic24 (2015)
Projected traffic53 by 2035
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Southside RD over Grindstone Creek built?

It was built in 1991, making it 34 years old in 2025.

What condition is Southside RD over Grindstone Creek 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 June 2023.

How much traffic does Southside RD over Grindstone Creek carry?

About 24 vehicles per day (2015 count).

How long is Southside RD over Grindstone Creek?

The structure is 40 ft (12.3 m) long with a longest span of 36 ft (11 m) and a deck 16 ft wide.

Who owns Southside RD over Grindstone Creek?

It is owned by the County Highway Agency.