US Bridges

Addison Road over Kempton Drain

Fair

Hillsdale County, Michigan · 0.25 MI W of Meridian RD · Structure no. 000000000003360

Built
1985
40 years old
Condition
Fair
inspected November 2024
Type
Slab
Wood or Timber
Length
32 ft
2 main spans
Daily traffic
592
2014 count
Owner
County
County Highway Agency

About this bridge

Addison Road over Kempton Drain is a wood or timber slab carrying Addison Road over Kempton Drain in Hillsdale 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 592 vehicles a day, projected to reach 971 by 2038. The structure is 32 ft (9.7 m) long and 34 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesAddison Road
CrossesKempton Drain
Location0.25 MI W of Meridian RD
RouteCounty Highway 0
CountyHillsdale County
StateMichigan
Coordinates41.9862, -84.36749
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no 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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42.3 US tons
Inventory rating30.9 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans2
Design loadH 20
Structure length32 ft (9.7 m)
Longest span16 ft (4.8 m)
Deck width34 ft (10.3 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic592 (2014)
Projected traffic971 by 2038
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Addison Road over Kempton Drain built?

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

What condition is Addison Road over Kempton 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 November 2024.

How much traffic does Addison Road over Kempton Drain carry?

About 592 vehicles per day (2014 count).

How long is Addison Road over Kempton Drain?

The structure is 32 ft (9.7 m) long with a longest span of 16 ft (4.8 m) and a deck 34 ft wide.

Who owns Addison Road over Kempton Drain?

It is owned by the County Highway Agency.