US Bridges

Eight Mile Road over Kossick Drain

PoorPosted for load

Bay County, Michigan · 0.2 MI N White Feather RD · Structure no. 000000000000740

Built
1940
85 years old
Condition
Poor
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
24 ft
1 main span
Daily traffic
93
2000 count
Owner
County
County Highway Agency

About this bridge

Eight Mile Road over Kossick Drain is a steel stringer/multi-beam or girder carrying Eight Mile Road over Kossick Drain in Bay County, Michigan. It was built in 1940, so it is 85 years old, older than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 93 vehicles a day, roughly 10% of them trucks, projected to reach 112 by 2020. The structure is 24 ft (7.3 m) long and 30 ft wide. If it were closed, the detour would be 198.8 mi (320 km).

CarriesEight Mile Road
CrossesKossick Drain
Location0.2 MI N White Feather RD
RouteCounty Highway 0
Coordinates43.90006, -84.04497
Functional classRural Minor Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating27.9 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length24 ft (7.3 m)
Longest span20 ft (6.1 m)
Deck width30 ft (9 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic93 (2000)
Projected traffic112 by 2020
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed198.8 mi (320 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 Eight Mile Road over Kossick Drain built?

It was built in 1940, making it 85 years old in 2025.

What condition is Eight Mile Road over Kossick Drain in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in April 2024.

How much traffic does Eight Mile Road over Kossick Drain carry?

About 93 vehicles per day (2000 count), of which roughly 10% are trucks.

How long is Eight Mile Road over Kossick Drain?

The structure is 24 ft (7.3 m) long with a longest span of 20 ft (6.1 m) and a deck 30 ft wide.

Who owns Eight Mile Road over Kossick Drain?

It is owned by the County Highway Agency.