US Bridges

Mackinaw Road over Selleck Drain

Poor

Bay County, Michigan · 0.5 MI S of Mt Forest RD · Structure no. 000000000013119

Built
1975
50 years old
Condition
Poor
inspected April 2024
Type
Culvert
Steel
Length
22 ft
2 main spans
Daily traffic
335
2002 count
Owner
County
County Highway Agency

About this bridge

Mackinaw Road over Selleck Drain is a steel culvert carrying Mackinaw Road over Selleck Drain in Bay 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 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.

It carries about 335 vehicles a day, projected to reach 345 by 2020. The structure is 22 ft (6.8 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesMackinaw Road
CrossesSelleck Drain
Location0.5 MI S of Mt Forest RD
RouteCounty Highway 0
CountyBay County
StateMichigan
Coordinates43.87804, -83.98599
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionApril 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating101.4 US tons
Inventory rating101.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadHS 20
Structure length22 ft (6.8 m)
Longest span11 ft (3.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic335 (2002)
Projected traffic345 by 2020
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Mackinaw Road over Selleck Drain built?

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

What condition is Mackinaw Road over Selleck 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 Mackinaw Road over Selleck Drain carry?

About 335 vehicles per day (2002 count).

How long is Mackinaw Road over Selleck Drain?

The structure is 22 ft (6.8 m) long with a longest span of 11 ft (3.3 m).

Who owns Mackinaw Road over Selleck Drain?

It is owned by the County Highway Agency.