US Bridges

Black River Road over Mud Creek

Fair

Cheboygan County, Michigan · Grant Twp Sec 28 · Structure no. 000000000013422

Built
1970
55 years old
Condition
Fair
inspected July 2023
Type
Culvert
Steel
Length
36 ft
3 main spans
Daily traffic
1,500
2007 count
Owner
County
County Highway Agency

About this bridge

Black River Road over Mud Creek is a steel culvert carrying Black River Road over Mud Creek in Cheboygan County, Michigan. It was built in 1970, so it is 55 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 1,500 vehicles a day, projected to reach 2,500 by 2025. The structure is 36 ft (11 m) long. If it were closed, the detour would be 37.9 mi (61 km).

Location

Open in Google Maps
CarriesBlack River Road
CrossesMud Creek
LocationGrant Twp Sec 28
RouteCounty Highway 1648
CountyCheboygan County
StateMichigan
Coordinates45.47775, -84.32186
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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.1 US tons
Inventory rating44.6 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans3
Design loadHS 20
Structure length36 ft (11 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,500 (2007)
Projected traffic2,500 by 2025
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed37.9 mi (61 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 Black River Road over Mud Creek built?

It was built in 1970, making it 55 years old in 2025.

What condition is Black River Road over Mud 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 July 2023.

How much traffic does Black River Road over Mud Creek carry?

About 1,500 vehicles per day (2007 count).

How long is Black River Road over Mud Creek?

The structure is 36 ft (11 m) long with a longest span of 10 ft (3 m).

Who owns Black River Road over Mud Creek?

It is owned by the County Highway Agency.