US Bridges

Amble Road CO 601 over Tamarack Creek

Fair

Montcalm County, Michigan · 0.25 North of Almy Road · Structure no. 000000000007471

Built
1985
40 years old
Condition
Fair
inspected September 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
46 ft
1 main span
Daily traffic
377
2003 count
Owner
County
County Highway Agency

About this bridge

Amble Road CO 601 over Tamarack Creek is a prestressed concrete box beam or girders - multiple carrying Amble Road CO 601 over Tamarack Creek in Montcalm County, Michigan. It was built in 1985, so it is 40 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 377 vehicles a day, projected to reach 533 by 2023. The structure is 46 ft (14 m) long and 37 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesAmble Road CO 601
CrossesTamarack Creek
Location0.25 North of Almy Road
RouteCounty Highway 5980
CountyMontcalm County
StateMichigan
Coordinates43.41004, -85.38275
Functional classRural Major 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
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 geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70 US tons
Inventory rating41.9 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20 + Mod
Structure length46 ft (14 m)
Longest span46 ft (14 m)
Deck width37 ft (11.3 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic377 (2003)
Projected traffic533 by 2023
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Amble Road CO 601 over Tamarack Creek built?

It was built in 1985, making it 40 years old in 2025.

What condition is Amble Road CO 601 over Tamarack 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 2023.

How much traffic does Amble Road CO 601 over Tamarack Creek carry?

About 377 vehicles per day (2003 count).

How long is Amble Road CO 601 over Tamarack Creek?

The structure is 46 ft (14 m) long with a longest span of 46 ft (14 m) and a deck 37 ft wide.

Who owns Amble Road CO 601 over Tamarack Creek?

It is owned by the County Highway Agency.