US Bridges

Milliron Road over Black Creek

Fair

Muskegon County, Michigan · 2.0 MI S of M-46 · Structure no. 000000000007641

Built
2002
23 years old
Condition
Fair
inspected September 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
44 ft
1 main span
Daily traffic
7,790
2002 count
Owner
County
County Highway Agency

About this bridge

Milliron Road over Black Creek is a prestressed concrete box beam or girders - multiple carrying Milliron Road over Black Creek in Muskegon County, Michigan. It was built in 2002, so it is 23 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 7,790 vehicles a day, roughly 7% of them trucks, projected to reach 11,600 by 2022. The structure is 44 ft (13.5 m) long and 44 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesMilliron Road
CrossesBlack Creek
Location2.0 MI S of M-46
RouteCounty Highway 2007
CountyMuskegon County
StateMichigan
Coordinates43.20473, -86.15492
Functional classUrban 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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating86.1 US tons
Inventory rating51.6 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length44 ft (13.5 m)
Longest span42 ft (12.9 m)
Deck width44 ft (13.3 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,790 (2002)
Projected traffic11,600 by 2022
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 Milliron Road over Black Creek built?

It was built in 2002, making it 23 years old in 2025.

What condition is Milliron Road 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 September 2024.

How much traffic does Milliron Road over Black Creek carry?

About 7,790 vehicles per day (2002 count), of which roughly 7% are trucks.

How long is Milliron Road over Black Creek?

The structure is 44 ft (13.5 m) long with a longest span of 42 ft (12.9 m) and a deck 44 ft wide.

Who owns Milliron Road over Black Creek?

It is owned by the County Highway Agency.