US Bridges

S Black River Road over County Drain (mud Lk Drn

FairPosted for load

Cheboygan County, Michigan · Waverly Twp Sec 3 · Structure no. 000000000001536

Built
1986
39 years old
Condition
Fair
inspected July 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
54 ft
1 main span
Daily traffic
1,500
2005 count
Owner
County
County Highway Agency

About this bridge

S Black River Road over County Drain (mud Lk Drn is a prestressed concrete box beam or girders - multiple carrying S Black River Road over County Drain (mud Lk Drn in Cheboygan County, Michigan. It was built in 1986, so it is 39 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. Its operating status is: posted for load restriction.

It carries about 1,500 vehicles a day, projected to reach 2,700 by 2025. The structure is 54 ft (16.4 m) long and 37 ft wide. If it were closed, the detour would be 32.9 mi (53 km).

Location

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CarriesS Black River Road
CrossesCounty Drain (mud Lk Drn
LocationWaverly Twp Sec 3
RouteCounty Highway 1648
CountyCheboygan County
StateMichigan
Coordinates45.458, -84.29697
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating44.6 US tons
Inventory rating34.3 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20 + Mod
Structure length54 ft (16.4 m)
Longest span54 ft (16.4 m)
Deck width37 ft (11.3 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,500 (2005)
Projected traffic2,700 by 2025
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed32.9 mi (53 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 S Black River Road over County Drain (mud Lk Drn built?

It was built in 1986, making it 39 years old in 2025.

What condition is S Black River Road over County Drain (mud Lk Drn 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 July 2023.

How much traffic does S Black River Road over County Drain (mud Lk Drn carry?

About 1,500 vehicles per day (2005 count).

How long is S Black River Road over County Drain (mud Lk Drn?

The structure is 54 ft (16.4 m) long with a longest span of 54 ft (16.4 m) and a deck 37 ft wide.

Who owns S Black River Road over County Drain (mud Lk Drn?

It is owned by the County Highway Agency.