US Bridges

Summers Road over Weston Drain

FairPosted for load

Lapeer County, Michigan · Sec. 31 Imlay Twp. · Structure no. 000000000005427

Built
1992
33 years old
Condition
Fair
inspected July 2023
Type
Tee Beam
Prestressed Concrete
Length
40 ft
1 main span
Daily traffic
405
2018 count
Owner
County
County Highway Agency

About this bridge

Summers Road over Weston Drain is a prestressed concrete tee beam carrying Summers Road over Weston Drain in Lapeer 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 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. Its operating status is: posted for load restriction.

It carries about 405 vehicles a day, projected to reach 494 by 2038. The structure is 40 ft (12.2 m) long and 33 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesSummers Road
CrossesWeston Drain
LocationSec. 31 Imlay Twp.
RouteCounty Highway 0
CountyLapeer County
StateMichigan
Coordinates42.98146, -83.10432
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.7 US tons
Inventory rating28.2 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length40 ft (12.2 m)
Longest span37 ft (11.2 m)
Deck width33 ft (10.1 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic405 (2018)
Projected traffic494 by 2038
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Summers Road over Weston Drain built?

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

What condition is Summers Road over Weston 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 July 2023.

How much traffic does Summers Road over Weston Drain carry?

About 405 vehicles per day (2018 count).

How long is Summers Road over Weston Drain?

The structure is 40 ft (12.2 m) long with a longest span of 37 ft (11.2 m) and a deck 33 ft wide.

Who owns Summers Road over Weston Drain?

It is owned by the County Highway Agency.