US Bridges

M-66 over Hager Creek

Fair

Barry County, Michigan · 6.7 MI N of Nashville · Structure no. 000000000000546

Built
1955
70 years old
Condition
Fair
inspected May 2024
Type
Tee Beam
Concrete
Length
25 ft
1 main span
Daily traffic
2,280
2007 count
Owner
State
State Highway Agency

About this bridge

M-66 over Hager Creek is a concrete tee beam carrying M-66 over Hager Creek in Barry County, Michigan. It was built in 1955, so it is 70 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 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 2,280 vehicles a day, roughly 10% of them trucks, projected to reach 3,408 by 2018. The structure is 25 ft (7.6 m) long and 76 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesM-66
CrossesHager Creek
Location6.7 MI N of Nashville
RouteState Highway 66
CountyBarry County
StateMichigan
Coordinates42.69922, -85.09513
Functional classRural Minor 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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating107.1 US tons
Inventory rating107.1 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span21 ft (6.4 m)
Deck width76 ft (23.1 m)
Roadway width41 ft (12.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,280 (2007)
Projected traffic3,408 by 2018
Trucks10%
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

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 M-66 over Hager Creek built?

It was built in 1955, making it 70 years old in 2025.

What condition is M-66 over Hager 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 2024.

How much traffic does M-66 over Hager Creek carry?

About 2,280 vehicles per day (2007 count), of which roughly 10% are trucks.

How long is M-66 over Hager Creek?

The structure is 25 ft (7.6 m) long with a longest span of 21 ft (6.4 m) and a deck 76 ft wide.

Who owns M-66 over Hager Creek?

It is owned by the State Highway Agency.