US Bridges

M-66 over Doc & Tom Creek

Poor

Osceola County, Michigan · 2.8 MI N of US-10 · Structure no. 000000000008586

Built
1924
101 years old
Condition
Poor
inspected July 2024
Type
Tee Beam
Concrete
Length
31 ft
1 main span
Daily traffic
1,990
2007 count
Owner
State
State Highway Agency

About this bridge

M-66 over Doc & Tom Creek is a concrete tee beam carrying M-66 over Doc & Tom Creek in Osceola County, Michigan. It was built in 1924, so it is 101 years old, older than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 1,990 vehicles a day, roughly 7% of them trucks, projected to reach 2,912 by 2018. The structure is 31 ft (9.4 m) long and 38 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesM-66
CrossesDoc & Tom Creek
Location2.8 MI N of US-10
RouteState Highway 66
CountyOsceola County
StateMichigan
Coordinates43.9417, -85.1485
Functional classRural Minor Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating85.3 US tons
Inventory rating51 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length31 ft (9.4 m)
Longest span31 ft (9.4 m)
Deck width38 ft (11.6 m)
Roadway width33 ft (10.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,990 (2007)
Projected traffic2,912 by 2018
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 proposedDeck replacement with only incidental widening
Estimated improvement cost$21,000
NavigationNo navigation control on waterway

Frequently asked questions

When was M-66 over Doc & Tom Creek built?

It was built in 1924, making it 101 years old in 2025.

What condition is M-66 over Doc & Tom Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in July 2024.

How much traffic does M-66 over Doc & Tom Creek carry?

About 1,990 vehicles per day (2007 count), of which roughly 7% are trucks.

How long is M-66 over Doc & Tom Creek?

The structure is 31 ft (9.4 m) long with a longest span of 31 ft (9.4 m) and a deck 38 ft wide.

Who owns M-66 over Doc & Tom Creek?

It is owned by the State Highway Agency.