US Bridges

M-46 (apple St) over US-31

Fair

Muskegon County, Michigan · @ M-46 · Structure no. 000000000007575

Built
1960
65 years old
Condition
Fair
inspected July 2023
Type
Tee Beam
Concrete Continuous
Length
244 ft
4 main spans
Daily traffic
16,835
2007 count
Owner
State
State Highway Agency

About this bridge

M-46 (apple St) over US-31 is a concrete continuous tee beam carrying M-46 (apple St) over US-31 in Muskegon County, Michigan. It was built in 1960, so it is 65 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 16,835 vehicles a day, roughly 3% of them trucks, projected to reach 17,727 by 2018. The structure is 244 ft (74.3 m) long and 97 ft wide.

Location

Open in Google Maps
CarriesM-46 (apple St)
CrossesUS-31
Location@ M-46
RouteState Highway 46
CountyMuskegon County
StateMichigan
Coordinates43.23423, -86.20451
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length244 ft (74.3 m)
Longest span69 ft (21 m)
Deck width97 ft (29.7 m)
Roadway width85 ft (25.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,835 (2007)
Projected traffic17,727 by 2018
Trucks3%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedDeck replacement with only incidental widening
Estimated improvement cost$549,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was M-46 (apple St) over US-31 built?

It was built in 1960, making it 65 years old in 2025.

What condition is M-46 (apple St) over US-31 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 2023.

How much traffic does M-46 (apple St) over US-31 carry?

About 16,835 vehicles per day (2007 count), of which roughly 3% are trucks.

How long is M-46 (apple St) over US-31?

The structure is 244 ft (74.3 m) long with a longest span of 69 ft (21 m) and a deck 97 ft wide.

Who owns M-46 (apple St) over US-31?

It is owned by the State Highway Agency.