US Bridges

B-28 (10th Rd) over Bark River

Fair

Delta County, Michigan · 3.5 MI SE of Bark River · Structure no. 000000000013305

Built
1975
50 years old
Condition
Fair
inspected July 2024
Type
Culvert
Steel
Length
22 ft
2 main spans
Daily traffic
149
2022 count
Owner
County
County Highway Agency

About this bridge

B-28 (10th Rd) over Bark River is a steel culvert carrying B-28 (10th Rd) over Bark River in Delta County, Michigan. It was built in 1975, so it is 50 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 149 vehicles a day, roughly 10% of them trucks, projected to reach 164 by 2042. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 198.2 mi (319 km).

Location

Open in Google Maps
CarriesB-28 (10th Rd)
CrossesBark River
Location3.5 MI SE of Bark River
RouteCounty Highway 0
CountyDelta County
StateMichigan
Coordinates45.66666, -87.28941
Functional classRural Local

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2024
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.7 US tons
Inventory rating21.4 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadHS 20
Structure length22 ft (6.7 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 traffic149 (2022)
Projected traffic164 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed198.2 mi (319 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 B-28 (10th Rd) over Bark River built?

It was built in 1975, making it 50 years old in 2025.

What condition is B-28 (10th Rd) over Bark River 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 2024.

How much traffic does B-28 (10th Rd) over Bark River carry?

About 149 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is B-28 (10th Rd) over Bark River?

The structure is 22 ft (6.7 m) long with a longest span of 10 ft (3 m).

Who owns B-28 (10th Rd) over Bark River?

It is owned by the County Highway Agency.