US Bridges

County Road B 17 over Bark River

Good

Delta County, Michigan · 9 MI W of Escanaba · Structure no. 000000000002148

Built
2016
9 years old
Condition
Good
inspected July 2023
Type
Culvert
Prestressed Concrete
Length
37 ft
1 main span
Daily traffic
30
2022 count
Owner
County
County Highway Agency

About this bridge

County Road B 17 over Bark River is a prestressed concrete culvert carrying County Road B 17 over Bark River in Delta County, Michigan. It was built in 2016, so it is 9 years old, younger than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 30 vehicles a day, projected to reach 30 by 2042. The structure is 37 ft (11.3 m) long. If it were closed, the detour would be 123 mi (198 km).

Location

Open in Google Maps
CarriesCounty Road B 17
CrossesBark River
Location9 MI W of Escanaba
RouteCounty Highway 0
CountyDelta County
StateMichigan
Coordinates45.72625, -87.28407
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert8 Very GoodNo problems noted.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating92.8 US tons
Inventory rating68.2 US tons

Structure

Structure typeCulvert
MaterialPrestressed Concrete
DeckNot applicable
Main spans1
Design loadUnknown
Structure length37 ft (11.3 m)
Longest span34 ft (10.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2022)
Projected traffic30 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123 mi (198 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$240,000
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road B 17 over Bark River built?

It was built in 2016, making it 9 years old in 2025.

What condition is County Road B 17 over Bark River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2023.

How much traffic does County Road B 17 over Bark River carry?

About 30 vehicles per day (2022 count).

How long is County Road B 17 over Bark River?

The structure is 37 ft (11.3 m) long with a longest span of 34 ft (10.4 m).

Who owns County Road B 17 over Bark River?

It is owned by the County Highway Agency.