US Bridges

Clark Road over Swan Creek

Good

Wayne County, Michigan · Huron/Sumpter N/Willow · Structure no. 000000000012280

Built
1935
90 years old, rebuilt 1995
Condition
Good
inspected July 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
30 ft
1 main span
Daily traffic
411
1996 count
Owner
County
County Highway Agency

About this bridge

Clark Road over Swan Creek is a prestressed concrete box beam or girders - multiple carrying Clark Road over Swan Creek in Wayne County, Michigan. It was built in 1935 and reconstructed in 1995, so it is 90 years old, older 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 411 vehicles a day, roughly 2% of them trucks, projected to reach 164 by 2015. The structure is 30 ft (9 m) long and 43 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesClark Road
CrossesSwan Creek
LocationHuron/Sumpter N/Willow
RouteCounty Highway 0
Coordinates42.11991, -83.42136
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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating107.1 US tons
Inventory rating72.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length30 ft (9 m)
Longest span25 ft (7.7 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic411 (1996)
Projected traffic164 by 2015
Trucks2%
Lanes on structure2
Traffic directionTwo-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 Clark Road over Swan Creek built?

It was built in 1935, making it 90 years old in 2025. It was reconstructed in 1995.

What condition is Clark Road over Swan 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 July 2024.

How much traffic does Clark Road over Swan Creek carry?

About 411 vehicles per day (1996 count), of which roughly 2% are trucks.

How long is Clark Road over Swan Creek?

The structure is 30 ft (9 m) long with a longest span of 25 ft (7.7 m) and a deck 43 ft wide.

Who owns Clark Road over Swan Creek?

It is owned by the County Highway Agency.