US Bridges

Willow Beach Road over Channel Dollar & Cass Lk

PoorPosted for load

Oakland County, Michigan · City of Keego Harbor · Structure no. 000000000008238

Built
1984
41 years old
Condition
Poor
inspected January 2025
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
40 ft
1 main span
Daily traffic
480
1984 count
Owner
City
City or Municipal Highway Agency

About this bridge

Willow Beach Road over Channel Dollar & Cass Lk is a prestressed concrete box beam or girders - multiple carrying Willow Beach Road over Channel Dollar & Cass Lk in Oakland County, Michigan. It was built in 1984, so it is 41 years old, younger 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. Its operating status is: posted for load restriction.

It carries about 480 vehicles a day, roughly 1% of them trucks, projected to reach 500 by 2004. The structure is 40 ft (12.2 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesWillow Beach Road
CrossesChannel Dollar & Cass Lk
LocationCity of Keego Harbor
RouteCity Street 0
Coordinates42.6063, -83.34759
Functional classRural 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2025
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating41.8 US tons
Inventory rating25 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20 + Mod
Structure length40 ft (12.2 m)
Longest span38 ft (11.7 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic480 (1984)
Projected traffic500 by 2004
Trucks1%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Willow Beach Road over Channel Dollar & Cass Lk built?

It was built in 1984, making it 41 years old in 2025.

What condition is Willow Beach Road over Channel Dollar & Cass Lk 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 January 2025.

How much traffic does Willow Beach Road over Channel Dollar & Cass Lk carry?

About 480 vehicles per day (1984 count), of which roughly 1% are trucks.

How long is Willow Beach Road over Channel Dollar & Cass Lk?

The structure is 40 ft (12.2 m) long with a longest span of 38 ft (11.7 m) and a deck 28 ft wide.

Who owns Willow Beach Road over Channel Dollar & Cass Lk?

It is owned by the City or Municipal Highway Agency.