US Bridges

Powers Street over Clam River

Poor

Wexford County, Michigan · City of Cadillac · Structure no. 000000000012595

Built
1900
125 years old
Condition
Poor
inspected March 2024
Type
Arch - Deck
Concrete
Length
24 ft
1 main span
Daily traffic
560
2002 count
Owner
City
City or Municipal Highway Agency

About this bridge

Powers Street over Clam River is a concrete arch - deck carrying Powers Street over Clam River in Wexford County, Michigan. It was built in 1900, so it is 125 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 3 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 560 vehicles a day, projected to reach 1,000 by 2024. The structure is 24 ft (7.3 m) long and 36 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesPowers Street
CrossesClam River
LocationCity of Cadillac
RouteCity Street 0
CountyWexford County
StateMichigan
Coordinates44.25982, -85.40266
Functional classUrban Local

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
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment7: Better than present minimum criteria
Operating rating60.1 US tons
Inventory rating36 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length24 ft (7.3 m)
Longest span24 ft (7.3 m)
Deck width36 ft (11.1 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic560 (2002)
Projected traffic1,000 by 2024
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

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$61,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Powers Street over Clam River built?

It was built in 1900, making it 125 years old in 2025.

What condition is Powers Street over Clam River 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 March 2024.

How much traffic does Powers Street over Clam River carry?

About 560 vehicles per day (2002 count).

How long is Powers Street over Clam River?

The structure is 24 ft (7.3 m) long with a longest span of 24 ft (7.3 m) and a deck 36 ft wide.

Who owns Powers Street over Clam River?

It is owned by the City or Municipal Highway Agency.