US Bridges

Three Mile Road over Mitchell Creek

Good

Grand Traverse County, Michigan · 1.07 MI S of US-31 · Structure no. 000000000013359

Built
2005
20 years old
Condition
Good
inspected September 2024
Type
Culvert
Concrete
Length
34 ft
1 main span
Daily traffic
9,668
2019 count
Owner
County
County Highway Agency

About this bridge

Three Mile Road over Mitchell Creek is a concrete culvert carrying Three Mile Road over Mitchell Creek in Grand Traverse County, Michigan. It was built in 2005, so it is 20 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 9,668 vehicles a day, roughly 25% of them trucks, projected to reach 12,000 by 2030. The structure is 34 ft (10.4 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesThree Mile Road
CrossesMitchell Creek
Location1.07 MI S of US-31
RouteCounty Highway 0
Coordinates44.73491, -85.55635
Functional classUrban Minor Arterial

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 protection7 GoodSome minor problems.
Culvert8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.6 US tons
Inventory rating37.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length34 ft (10.4 m)
Longest span32 ft (9.8 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,668 (2019)
Projected traffic12,000 by 2030
Trucks25%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 Three Mile Road over Mitchell Creek built?

It was built in 2005, making it 20 years old in 2025.

What condition is Three Mile Road over Mitchell Creek 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 September 2024.

How much traffic does Three Mile Road over Mitchell Creek carry?

About 9,668 vehicles per day (2019 count), of which roughly 25% are trucks.

How long is Three Mile Road over Mitchell Creek?

The structure is 34 ft (10.4 m) long with a longest span of 32 ft (9.8 m).

Who owns Three Mile Road over Mitchell Creek?

It is owned by the County Highway Agency.