US Bridges

Carpenter Road over East Branch Augres River

Fair

Iosco County, Michigan · 4300 Ft W of Greenwood RD · Structure no. 000000000004151

Built
1979
46 years old
Condition
Fair
inspected June 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
32 ft
1 main span
Daily traffic
300
2006 count
Owner
County
County Highway Agency

About this bridge

Carpenter Road over East Branch Augres River is a prestressed concrete box beam or girders - multiple carrying Carpenter Road over East Branch Augres River in Iosco County, Michigan. It was built in 1979, so it is 46 years old, younger than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 300 vehicles a day, roughly 10% of them trucks, projected to reach 540 by 2026. The structure is 32 ft (9.7 m) long and 24 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesCarpenter Road
CrossesEast Branch Augres River
Location4300 Ft W of Greenwood RD
RouteCounty Highway 0
Coordinates44.28513, -83.72027
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to 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 alignment7: Better than present minimum criteria
Operating rating77.5 US tons
Inventory rating46.4 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length32 ft (9.7 m)
Longest span31 ft (9.4 m)
Deck width24 ft (7.4 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic300 (2006)
Projected traffic540 by 2026
Trucks10%
Lanes on structure2
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 Carpenter Road over East Branch Augres River built?

It was built in 1979, making it 46 years old in 2025.

What condition is Carpenter Road over East Branch Augres River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in June 2024.

How much traffic does Carpenter Road over East Branch Augres River carry?

About 300 vehicles per day (2006 count), of which roughly 10% are trucks.

How long is Carpenter Road over East Branch Augres River?

The structure is 32 ft (9.7 m) long with a longest span of 31 ft (9.4 m) and a deck 24 ft wide.

Who owns Carpenter Road over East Branch Augres River?

It is owned by the County Highway Agency.