US Bridges

5 Mile Road over Little Muskegon River

Fair

Mecosta County, Michigan · Altona · Structure no. 000000000006758

Built
1961
64 years old, rebuilt 2014
Condition
Fair
inspected August 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
46 ft
1 main span
Daily traffic
1,757
2020 count
Owner
County
County Highway Agency

About this bridge

5 Mile Road over Little Muskegon River is a prestressed concrete box beam or girders - multiple carrying 5 Mile Road over Little Muskegon River in Mecosta County, Michigan. It was built in 1961 and reconstructed in 2014, so it is 64 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 5 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 1,757 vehicles a day, roughly 3% of them trucks, projected to reach 2,040 by 2040. The structure is 46 ft (14 m) long and 31 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
Carries5 Mile Road
CrossesLittle Muskegon River
LocationAltona
RouteCounty Highway 5420
CountyMecosta County
StateMichigan
Coordinates43.53996, -85.30607
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 rating106.5 US tons
Inventory rating82.1 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadGreater than HL 93
Structure length46 ft (14 m)
Longest span40 ft (12.2 m)
Deck width31 ft (9.6 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,757 (2020)
Projected traffic2,040 by 2040
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 5 Mile Road over Little Muskegon River built?

It was built in 1961, making it 64 years old in 2025. It was reconstructed in 2014.

What condition is 5 Mile Road over Little Muskegon River 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 5 Mile Road over Little Muskegon River carry?

About 1,757 vehicles per day (2020 count), of which roughly 3% are trucks.

How long is 5 Mile Road over Little Muskegon River?

The structure is 46 ft (14 m) long with a longest span of 40 ft (12.2 m) and a deck 31 ft wide.

Who owns 5 Mile Road over Little Muskegon River?

It is owned by the County Highway Agency.