US Bridges

US-31 over Acme Creek

Fair

Grand Traverse County, Michigan · In Acme · Structure no. 000000000003050

Built
1928
97 years old, rebuilt 1986
Condition
Fair
inspected May 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
24 ft
1 main span
Daily traffic
12,363
2007 count
Owner
State
State Highway Agency

About this bridge

US-31 over Acme Creek is a prestressed concrete box beam or girders - multiple carrying US-31 over Acme Creek in Grand Traverse County, Michigan. It was built in 1928 and reconstructed in 1986, so it is 97 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 12,363 vehicles a day, roughly 3% of them trucks, projected to reach 13,271 by 2018. The structure is 24 ft (7.3 m) long and 83 ft wide. If it were closed, the detour would be 13 mi (21 km).

CarriesUS-31
CrossesAcme Creek
LocationIn Acme
RouteU.S. Route 31
Coordinates44.77547, -85.4988
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79.3 US tons
Inventory rating47.5 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length24 ft (7.3 m)
Longest span22 ft (6.7 m)
Deck width83 ft (25.3 m)
Roadway width55 ft (16.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,363 (2007)
Projected traffic13,271 by 2018
Trucks3%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13 mi (21 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$8,000
NavigationNo navigation control on waterway

Frequently asked questions

When was US-31 over Acme Creek built?

It was built in 1928, making it 97 years old in 2025. It was reconstructed in 1986.

What condition is US-31 over Acme 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 May 2023.

How much traffic does US-31 over Acme Creek carry?

About 12,363 vehicles per day (2007 count), of which roughly 3% are trucks.

How long is US-31 over Acme Creek?

The structure is 24 ft (7.3 m) long with a longest span of 22 ft (6.7 m) and a deck 83 ft wide.

Who owns US-31 over Acme Creek?

It is owned by the State Highway Agency.