US Bridges

Prospect Street over East Br of Coon Creek

Good

Macomb County, Michigan · Sec 23 Armada Twp · Structure no. 000000000006412

Built
1982
43 years old, rebuilt 2015
Condition
Good
inspected October 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
35 ft
1 main span
Daily traffic
315
2014 count
Owner
City
City or Municipal Highway Agency

About this bridge

Prospect Street over East Br of Coon Creek is a prestressed concrete box beam or girders - multiple carrying Prospect Street over East Br of Coon Creek in Macomb County, Michigan. It was built in 1982 and reconstructed in 2015, so it is 43 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 315 vehicles a day, projected to reach 385 by 2034. The structure is 35 ft (10.7 m) long and 32 ft wide. If it were closed, the detour would be 198.8 mi (320 km).

CarriesProspect Street
CrossesEast Br of Coon Creek
LocationSec 23 Armada Twp
RouteCity Street 0
Coordinates42.84582, -82.88489
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70.3 US tons
Inventory rating40 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadGreater than HL 93
Structure length35 ft (10.7 m)
Longest span34 ft (10.3 m)
Deck width32 ft (9.7 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic315 (2014)
Projected traffic385 by 2034
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed198.8 mi (320 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Prospect Street over East Br of Coon Creek built?

It was built in 1982, making it 43 years old in 2025. It was reconstructed in 2015.

What condition is Prospect Street over East Br of 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 October 2023.

How much traffic does Prospect Street over East Br of Coon Creek carry?

About 315 vehicles per day (2014 count).

How long is Prospect Street over East Br of Coon Creek?

The structure is 35 ft (10.7 m) long with a longest span of 34 ft (10.3 m) and a deck 32 ft wide.

Who owns Prospect Street over East Br of Coon Creek?

It is owned by the City or Municipal Highway Agency.