US Bridges

Dennis Road over West Cedar Drain

PoorPosted for load

Ingham County, Michigan · 3.8 MI SE of Webberville · Structure no. 000000000003898

Built
1900
125 years old, rebuilt 1984
Condition
Poor
inspected June 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
32 ft
1 main span
Daily traffic
250
2019 count
Owner
County
County Highway Agency

About this bridge

Dennis Road over West Cedar Drain is a prestressed concrete box beam or girders - multiple carrying Dennis Road over West Cedar Drain in Ingham County, Michigan. It was built in 1900 and reconstructed in 1984, 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. Its operating status is: posted for load restriction.

It carries about 250 vehicles a day, roughly 8% of them trucks, projected to reach 310 by 2039. The structure is 32 ft (9.7 m) long and 24 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesDennis Road
CrossesWest Cedar Drain
Location3.8 MI SE of Webberville
RouteCounty Highway 0
Coordinates42.61408, -84.1482
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.
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 protection3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Last inspectionJune 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
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 adequacy3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment7: Better than present minimum criteria
Operating rating13 US tons
Inventory rating7.8 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length32 ft (9.7 m)
Longest span32 ft (9.7 m)
Deck width24 ft (7.4 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic250 (2019)
Projected traffic310 by 2039
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$150,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Dennis Road over West Cedar Drain built?

It was built in 1900, making it 125 years old in 2025. It was reconstructed in 1984.

What condition is Dennis Road over West Cedar Drain 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 June 2024.

How much traffic does Dennis Road over West Cedar Drain carry?

About 250 vehicles per day (2019 count), of which roughly 8% are trucks.

How long is Dennis Road over West Cedar Drain?

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

Who owns Dennis Road over West Cedar Drain?

It is owned by the County Highway Agency.