US Bridges

Kentucky Avenue over Plum Creek

Fair

Monroe County, Michigan · At So City Line · Structure no. 000000000007409

Built
1956
69 years old, rebuilt 1988
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
45 ft
1 main span
Daily traffic
2,080
2012 count
Owner
City
City or Municipal Highway Agency

About this bridge

Kentucky Avenue over Plum Creek is a steel stringer/multi-beam or girder carrying Kentucky Avenue over Plum Creek in Monroe County, Michigan. It was built in 1956 and reconstructed in 1988, so it is 69 years old, older 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 2,080 vehicles a day, roughly 7% of them trucks, projected to reach 2,320 by 2032. The structure is 45 ft (13.7 m) long and 40 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesKentucky Avenue
CrossesPlum Creek
LocationAt So City Line
RouteCity Street 0
CountyMonroe County
StateMichigan
Coordinates41.90253, -83.39293
Functional classUrban 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 protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating90.7 US tons
Inventory rating60.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length45 ft (13.7 m)
Longest span45 ft (13.7 m)
Deck width40 ft (12.2 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,080 (2012)
Projected traffic2,320 by 2032
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Kentucky Avenue over Plum Creek built?

It was built in 1956, making it 69 years old in 2025. It was reconstructed in 1988.

What condition is Kentucky Avenue over Plum Creek 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 2024.

How much traffic does Kentucky Avenue over Plum Creek carry?

About 2,080 vehicles per day (2012 count), of which roughly 7% are trucks.

How long is Kentucky Avenue over Plum Creek?

The structure is 45 ft (13.7 m) long with a longest span of 45 ft (13.7 m) and a deck 40 ft wide.

Who owns Kentucky Avenue over Plum Creek?

It is owned by the City or Municipal Highway Agency.