US Bridges

US-31 Br NB over Muskegon River

Fair

Muskegon County, Michigan · In Muskegon · Structure no. 000000000007636

Built
2010
15 years old
Condition
Fair
inspected April 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
115 ft
3 main spans
Daily traffic
11,592
2007 count
Owner
State
State Highway Agency

About this bridge

US-31 Br NB over Muskegon River is a prestressed concrete box beam or girders - single or spread carrying US-31 Br NB over Muskegon River in Muskegon County, Michigan. It was built in 2010, so it is 15 years old, younger 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 11,592 vehicles a day, roughly 5% of them trucks, projected to reach 10,686 by 2018. The structure is 115 ft (35.1 m) long and 52 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesUS-31 Br NB
CrossesMuskegon River
LocationIn Muskegon
RouteU.S. Route 31
CountyMuskegon County
StateMichigan
Coordinates43.25331, -86.2284
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating82.1 US tons
Inventory rating63.6 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadGreater than HL 93
Structure length115 ft (35.1 m)
Longest span43 ft (13.2 m)
Deck width52 ft (15.9 m)
Roadway width49 ft (14.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,592 (2007)
Projected traffic10,686 by 2018
Trucks5%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was US-31 Br NB over Muskegon River built?

It was built in 2010, making it 15 years old in 2025.

What condition is US-31 Br NB over 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 April 2024.

How much traffic does US-31 Br NB over Muskegon River carry?

About 11,592 vehicles per day (2007 count), of which roughly 5% are trucks.

How long is US-31 Br NB over Muskegon River?

The structure is 115 ft (35.1 m) long with a longest span of 43 ft (13.2 m) and a deck 52 ft wide.

Who owns US-31 Br NB over Muskegon River?

It is owned by the State Highway Agency.