US Bridges

Weston RD over Clem Smith Drain

Fair

Lenawee County, Michigan · 0.25 MI NE of Yankee RD · Structure no. 000000000005554

Built
1985
40 years old
Condition
Fair
inspected January 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
30 ft
1 main span
Daily traffic
2,044
2010 count
Owner
County
County Highway Agency

About this bridge

Weston RD over Clem Smith Drain is a prestressed concrete box beam or girders - multiple carrying Weston RD over Clem Smith Drain in Lenawee County, Michigan. It was built in 1985, so it is 40 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.

It carries about 2,044 vehicles a day, roughly 9% of them trucks, projected to reach 2,800 by 2031. The structure is 30 ft (9.1 m) long and 43 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesWeston RD
CrossesClem Smith Drain
Location0.25 MI NE of Yankee RD
RouteCounty Highway 4608
Coordinates41.72926, -84.19154
Functional classRural Major Collector

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating60.3 US tons
Inventory rating36.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length30 ft (9.1 m)
Longest span30 ft (9.1 m)
Deck width43 ft (13.2 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,044 (2010)
Projected traffic2,800 by 2031
Trucks9%
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 Weston RD over Clem Smith Drain built?

It was built in 1985, making it 40 years old in 2025.

What condition is Weston RD over Clem Smith Drain 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 January 2024.

How much traffic does Weston RD over Clem Smith Drain carry?

About 2,044 vehicles per day (2010 count), of which roughly 9% are trucks.

How long is Weston RD over Clem Smith Drain?

The structure is 30 ft (9.1 m) long with a longest span of 30 ft (9.1 m) and a deck 43 ft wide.

Who owns Weston RD over Clem Smith Drain?

It is owned by the County Highway Agency.