US Bridges

Leonard Street over Lloyds Bayou

Good

Ottawa County, Michigan · 0.16 MI SE of Lake Ave · Structure no. 000000000008846

Built
1957
68 years old
Condition
Good
inspected October 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
30 ft
1 main span
Daily traffic
6,210
2019 count
Owner
County
County Highway Agency

About this bridge

Leonard Street over Lloyds Bayou is a prestressed concrete box beam or girders - multiple carrying Leonard Street over Lloyds Bayou in Ottawa County, Michigan. It was built in 1957, so it is 68 years old, older 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 6,210 vehicles a day, roughly 5% of them trucks, projected to reach 11,220 by 2039. The structure is 30 ft (9.1 m) long and 30 ft wide.

CarriesLeonard Street
CrossesLloyds Bayou
Location0.16 MI SE of Lake Ave
RouteCounty Highway 0
Coordinates43.06946, -86.18412
Functional classUrban 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 inspectionOctober 2024
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 geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating82.1 US tons
Inventory rating49.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadH 20
Structure length30 ft (9.1 m)
Longest span30 ft (9.1 m)
Deck width30 ft (9.2 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,210 (2019)
Projected traffic11,220 by 2039
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 Leonard Street over Lloyds Bayou built?

It was built in 1957, making it 68 years old in 2025.

What condition is Leonard Street over Lloyds Bayou 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 October 2024.

How much traffic does Leonard Street over Lloyds Bayou carry?

About 6,210 vehicles per day (2019 count), of which roughly 5% are trucks.

How long is Leonard Street over Lloyds Bayou?

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

Who owns Leonard Street over Lloyds Bayou?

It is owned by the County Highway Agency.