US Bridges

Merriman Road over Silver Creek

Fair

Wayne County, Michigan · Huron S/Sibley · Structure no. 000000000012277

Built
1973
52 years old
Condition
Fair
inspected June 2023
Type
Tee Beam
Prestressed Concrete
Length
24 ft
1 main span
Daily traffic
734
1997 count
Owner
County
County Highway Agency

About this bridge

Merriman Road over Silver Creek is a prestressed concrete tee beam carrying Merriman Road over Silver Creek in Wayne County, Michigan. It was built in 1973, so it is 52 years old, older 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.

It carries about 734 vehicles a day, roughly 2% of them trucks, projected to reach 711 by 2015. The structure is 24 ft (7.3 m) long and 25 ft wide.

Location

Open in Google Maps
CarriesMerriman Road
CrossesSilver Creek
LocationHuron S/Sibley
RouteCounty Highway 0
CountyWayne County
StateMichigan
Coordinates42.16117, -83.3444
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.2 US tons
Inventory rating36.7 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length24 ft (7.3 m)
Longest span20 ft (6.1 m)
Deck width25 ft (7.6 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic734 (1997)
Projected traffic711 by 2015
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 Merriman Road over Silver Creek built?

It was built in 1973, making it 52 years old in 2025.

What condition is Merriman Road over Silver 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 Merriman Road over Silver Creek carry?

About 734 vehicles per day (1997 count), of which roughly 2% are trucks.

How long is Merriman Road over Silver Creek?

The structure is 24 ft (7.3 m) long with a longest span of 20 ft (6.1 m) and a deck 25 ft wide.

Who owns Merriman Road over Silver Creek?

It is owned by the County Highway Agency.