US Bridges

US-31 SB over Black Creek

Fair

Muskegon County, Michigan · 1.0 MI N of I-96 · Structure no. 000000000007569

Built
1949
76 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
60 ft
1 main span
Daily traffic
31,322
2007 count
Owner
State
State Highway Agency

About this bridge

US-31 SB over Black Creek is a steel stringer/multi-beam or girder carrying US-31 SB over Black Creek in Muskegon County, Michigan. It was built in 1949, so it is 76 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 31,322 vehicles a day, roughly 5% of them trucks, projected to reach 36,129 by 2018. The structure is 60 ft (18.2 m) long and 47 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS-31 SB
CrossesBlack Creek
Location1.0 MI N of I-96
RouteU.S. Route 31
Coordinates43.18783, -86.20519
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating107.1 US tons
Inventory rating67.1 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length60 ft (18.2 m)
Longest span60 ft (18.2 m)
Deck width47 ft (14.4 m)
Roadway width43 ft (13.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic31,322 (2007)
Projected traffic36,129 by 2018
Trucks5%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedDeck replacement with only incidental widening
Estimated improvement cost$68,000
NavigationNo navigation control on waterway

Frequently asked questions

When was US-31 SB over Black Creek built?

It was built in 1949, making it 76 years old in 2025.

What condition is US-31 SB over Black Creek 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 2024.

How much traffic does US-31 SB over Black Creek carry?

About 31,322 vehicles per day (2007 count), of which roughly 5% are trucks.

How long is US-31 SB over Black Creek?

The structure is 60 ft (18.2 m) long with a longest span of 60 ft (18.2 m) and a deck 47 ft wide.

Who owns US-31 SB over Black Creek?

It is owned by the State Highway Agency.