US Bridges

Sumpter Road over Swan Creek

Poor

Wayne County, Michigan · Sumpter S/Willis · Structure no. 000000000012108

Built
1950
75 years old, rebuilt 1972
Condition
Poor
inspected April 2024
Type
Slab
Concrete
Length
24 ft
1 main span
Daily traffic
5,924
1997 count
Owner
County
County Highway Agency

About this bridge

Sumpter Road over Swan Creek is a concrete slab carrying Sumpter Road over Swan Creek in Wayne County, Michigan. It was built in 1950 and reconstructed in 1972, so it is 75 years old, older than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 5,924 vehicles a day, roughly 5% of them trucks, projected to reach 5,604 by 2015. The structure is 24 ft (7.3 m) long and 37 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesSumpter Road
CrossesSwan Creek
LocationSumpter S/Willis
RouteCounty Highway 8211
CountyWayne County
StateMichigan
Coordinates42.15793, -83.48222
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.4 US tons
Inventory rating36 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length24 ft (7.3 m)
Longest span21 ft (6.4 m)
Deck width37 ft (11.4 m)
Roadway width36 ft (10.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,924 (1997)
Projected traffic5,604 by 2015
Trucks5%
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 Sumpter Road over Swan Creek built?

It was built in 1950, making it 75 years old in 2025. It was reconstructed in 1972.

What condition is Sumpter Road over Swan Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in April 2024.

How much traffic does Sumpter Road over Swan Creek carry?

About 5,924 vehicles per day (1997 count), of which roughly 5% are trucks.

How long is Sumpter Road over Swan Creek?

The structure is 24 ft (7.3 m) long with a longest span of 21 ft (6.4 m) and a deck 37 ft wide.

Who owns Sumpter Road over Swan Creek?

It is owned by the County Highway Agency.