US Bridges

M-18|M-55|W Hought over Denton Creek

Fair

Roscommon County, Michigan · 0.5 MI NE of Prudenville · Structure no. 000000000009011

Built
1959
66 years old
Condition
Fair
inspected December 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
34 ft
1 main span
Daily traffic
11,420
2022 count
Owner
State
State Highway Agency

About this bridge

M-18|M-55|W Hought over Denton Creek is a prestressed concrete box beam or girders - multiple carrying M-18|M-55|W Hought over Denton Creek in Roscommon County, Michigan. It was built in 1959, so it is 66 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 11,420 vehicles a day, roughly 3% of them trucks. The structure is 34 ft (10.5 m) long and 61 ft wide. If it were closed, the detour would be 29.8 mi (48 km).

Location

Open in Google Maps
CarriesM-18|M-55|W Hought
CrossesDenton Creek
Location0.5 MI NE of Prudenville
RouteState Highway 18
CountyRoscommon County
StateMichigan
Coordinates44.30242, -84.64506
Functional classUrban 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 18 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating85.8 US tons
Inventory rating47.8 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length34 ft (10.5 m)
Longest span33 ft (10.2 m)
Deck width61 ft (18.6 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,420 (2022)
Projected traffic—
Trucks3%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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 proposedDeck replacement with only incidental widening
Estimated improvement cost$27,000
NavigationNo navigation control on waterway

Frequently asked questions

When was M-18|M-55|W Hought over Denton Creek built?

It was built in 1959, making it 66 years old in 2025.

What condition is M-18|M-55|W Hought over Denton 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 December 2024.

How much traffic does M-18|M-55|W Hought over Denton Creek carry?

About 11,420 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is M-18|M-55|W Hought over Denton Creek?

The structure is 34 ft (10.5 m) long with a longest span of 33 ft (10.2 m) and a deck 61 ft wide.

Who owns M-18|M-55|W Hought over Denton Creek?

It is owned by the State Highway Agency.