US Bridges

Maple Island Road over Brooks Creek

Good

Muskegon County, Michigan · 6.9 MI N of M-46 · Structure no. 000000000007660

Built
1985
40 years old, rebuilt 2022
Condition
Good
inspected August 2024
Type
Box Beam or Girders - Single or Spread
Steel
Length
64 ft
1 main span
Daily traffic
6,100
2020 count
Owner
County
County Highway Agency

About this bridge

Maple Island Road over Brooks Creek is a steel box beam or girders - single or spread carrying Maple Island Road over Brooks Creek in Muskegon County, Michigan. It was built in 1985 and reconstructed in 2022, 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 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 6,100 vehicles a day, roughly 8% of them trucks, projected to reach 7,443 by 2040. The structure is 64 ft (19.5 m) long and 42 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

CarriesMaple Island Road
CrossesBrooks Creek
Location6.9 MI N of M-46
RouteCounty Highway 6159
Coordinates43.32264, -86.03902
Functional classRural Minor Arterial

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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.5 US tons
Inventory rating44.3 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadGreater than HL 93
Structure length64 ft (19.5 m)
Longest span61 ft (18.7 m)
Deck width42 ft (12.9 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,100 (2020)
Projected traffic7,443 by 2040
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 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 Maple Island Road over Brooks Creek built?

It was built in 1985, making it 40 years old in 2025. It was reconstructed in 2022.

What condition is Maple Island Road over Brooks Creek 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 August 2024.

How much traffic does Maple Island Road over Brooks Creek carry?

About 6,100 vehicles per day (2020 count), of which roughly 8% are trucks.

How long is Maple Island Road over Brooks Creek?

The structure is 64 ft (19.5 m) long with a longest span of 61 ft (18.7 m) and a deck 42 ft wide.

Who owns Maple Island Road over Brooks Creek?

It is owned by the County Highway Agency.