US Bridges

Kensington Road over Island Park Service DR

Fair

Livingston County, Michigan · Sec 1-2 Green Oak Twp · Structure no. 000000000005845

Built
1978
47 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
30 ft
1 main span
Daily traffic
13,390
2019 count
Owner
County
County Highway Agency

About this bridge

Kensington Road over Island Park Service DR is a steel stringer/multi-beam or girder carrying Kensington Road over Island Park Service DR in Livingston County, Michigan. It was built in 1978, so it is 47 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 13,390 vehicles a day, projected to reach 16,068 by 2039. The structure is 30 ft (9.1 m) long and 51 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesKensington Road
CrossesIsland Park Service DR
LocationSec 1-2 Green Oak Twp
RouteCounty Highway 4793
Coordinates42.5137, -83.68975
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating100.3 US tons
Inventory rating60 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length30 ft (9.1 m)
Longest span28 ft (8.5 m)
Deck width51 ft (15.4 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,390 (2019)
Projected traffic16,068 by 2039
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed5 mi (8 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Kensington Road over Island Park Service DR built?

It was built in 1978, making it 47 years old in 2025.

What condition is Kensington Road over Island Park Service DR 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 August 2023.

How much traffic does Kensington Road over Island Park Service DR carry?

About 13,390 vehicles per day (2019 count).

How long is Kensington Road over Island Park Service DR?

The structure is 30 ft (9.1 m) long with a longest span of 28 ft (8.5 m) and a deck 51 ft wide.

Who owns Kensington Road over Island Park Service DR?

It is owned by the County Highway Agency.