US Bridges

Swartz Creek Road over Mcgregar Creek

Good

Dickinson County, Michigan · 6 MI N and 1 E of Ralph · Structure no. 000000000002214

Built
1992
33 years old
Condition
Good
inspected September 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
50 ft
1 main span
Daily traffic
10
1997 count
Owner
County
County Highway Agency

About this bridge

Swartz Creek Road over Mcgregar Creek is a prestressed concrete box beam or girders - multiple carrying Swartz Creek Road over Mcgregar Creek in Dickinson County, Michigan. It was built in 1992, so it is 33 years old, younger than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 10 vehicles a day, projected to reach 15 by 2017. The structure is 50 ft (15.2 m) long and 28 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

CarriesSwartz Creek Road
CrossesMcgregar Creek
Location6 MI N and 1 E of Ralph
RouteCounty Highway 0
Coordinates46.18371, -87.75702
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating76.8 US tons
Inventory rating46.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length50 ft (15.2 m)
Longest span46 ft (14 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (1997)
Projected traffic15 by 2017
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 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 Swartz Creek Road over Mcgregar Creek built?

It was built in 1992, making it 33 years old in 2025.

What condition is Swartz Creek Road over Mcgregar Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2024.

How much traffic does Swartz Creek Road over Mcgregar Creek carry?

About 10 vehicles per day (1997 count).

How long is Swartz Creek Road over Mcgregar Creek?

The structure is 50 ft (15.2 m) long with a longest span of 46 ft (14 m) and a deck 28 ft wide.

Who owns Swartz Creek Road over Mcgregar Creek?

It is owned by the County Highway Agency.