US Bridges

29 Mile Road over East Branch Coon Creek

Good

Macomb County, Michigan · 0.2 MI East of Omo Road · Structure no. 000000000006331

Built
2005
20 years old
Condition
Good
inspected July 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
110 ft
2 main spans
Daily traffic
210
2009 count
Owner
County
County Highway Agency

About this bridge

29 Mile Road over East Branch Coon Creek is a prestressed concrete box beam or girders - multiple carrying 29 Mile Road over East Branch Coon Creek in Macomb 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 210 vehicles a day, roughly 3% of them trucks, projected to reach 312 by 2029. The structure is 110 ft (33.6 m) long and 44 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Carries29 Mile Road
CrossesEast Branch Coon Creek
Location0.2 MI East of Omo Road
RouteCounty Highway 0
Coordinates42.76286, -82.84954
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating107.1 US tons
Inventory rating79.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length110 ft (33.6 m)
Longest span73 ft (22.4 m)
Deck width44 ft (13.4 m)
Roadway width41 ft (12.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic210 (2009)
Projected traffic312 by 2029
Trucks3%
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 29 Mile Road over East Branch Coon Creek built?

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

What condition is 29 Mile Road over East Branch Coon 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 July 2023.

How much traffic does 29 Mile Road over East Branch Coon Creek carry?

About 210 vehicles per day (2009 count), of which roughly 3% are trucks.

How long is 29 Mile Road over East Branch Coon Creek?

The structure is 110 ft (33.6 m) long with a longest span of 73 ft (22.4 m) and a deck 44 ft wide.

Who owns 29 Mile Road over East Branch Coon Creek?

It is owned by the County Highway Agency.