US Bridges

Kingston Road over Clark Drain Extension

Good

Tuscola County, Michigan · Sec 16-17 Kingston Twp · Structure no. 000000000010514

Built
1986
39 years old
Condition
Good
inspected June 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
68 ft
1 main span
Daily traffic
1,390
2009 count
Owner
County
County Highway Agency

About this bridge

Kingston Road over Clark Drain Extension is a prestressed concrete box beam or girders - multiple carrying Kingston Road over Clark Drain Extension in Tuscola County, Michigan. It was built in 1986, so it is 39 years old, younger 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 1,390 vehicles a day, projected to reach 2,510 by 2029. The structure is 68 ft (20.7 m) long and 44 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesKingston Road
CrossesClark Drain Extension
LocationSec 16-17 Kingston Twp
RouteCounty Highway 7987
Coordinates43.46009, -83.18746
Functional classRural Major Collector

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating101.4 US tons
Inventory rating60.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length68 ft (20.7 m)
Longest span67 ft (20.3 m)
Deck width44 ft (13.3 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,390 (2009)
Projected traffic2,510 by 2029
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 Kingston Road over Clark Drain Extension built?

It was built in 1986, making it 39 years old in 2025.

What condition is Kingston Road over Clark Drain Extension 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 June 2023.

How much traffic does Kingston Road over Clark Drain Extension carry?

About 1,390 vehicles per day (2009 count).

How long is Kingston Road over Clark Drain Extension?

The structure is 68 ft (20.7 m) long with a longest span of 67 ft (20.3 m) and a deck 44 ft wide.

Who owns Kingston Road over Clark Drain Extension?

It is owned by the County Highway Agency.