US Bridges

M-134 over Prentiss Creek

Fair

Chippewa County, Michigan · 0.3 MI W of Mackinac Col · Structure no. 000000000001567

Built
1939
86 years old
Condition
Fair
inspected October 2024
Type
Tee Beam
Concrete
Length
27 ft
1 main span
Daily traffic
975
2007 count
Owner
State
State Highway Agency

About this bridge

M-134 over Prentiss Creek is a concrete tee beam carrying M-134 over Prentiss Creek in Chippewa County, Michigan. It was built in 1939, so it is 86 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 975 vehicles a day, roughly 5% of them trucks, projected to reach 1,151 by 2018. The structure is 27 ft (8.1 m) long and 38 ft wide. If it were closed, the detour would be 29.8 mi (48 km).

Location

Open in Google Maps
CarriesM-134
CrossesPrentiss Creek
Location0.3 MI W of Mackinac Col
RouteState Highway 134
CountyChippewa County
StateMichigan
Coordinates45.98978, -84.23534
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating57.5 US tons
Inventory rating44.3 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length27 ft (8.1 m)
Longest span24 ft (7.3 m)
Deck width38 ft (11.7 m)
Roadway width33 ft (10.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic975 (2007)
Projected traffic1,151 by 2018
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed29.8 mi (48 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-134 over Prentiss Creek built?

It was built in 1939, making it 86 years old in 2025.

What condition is M-134 over Prentiss 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 October 2024.

How much traffic does M-134 over Prentiss Creek carry?

About 975 vehicles per day (2007 count), of which roughly 5% are trucks.

How long is M-134 over Prentiss Creek?

The structure is 27 ft (8.1 m) long with a longest span of 24 ft (7.3 m) and a deck 38 ft wide.

Who owns M-134 over Prentiss Creek?

It is owned by the State Highway Agency.