US Bridges

Cyclone RD over Forest Drain

Fair

Lapeer County, Michigan · 0.3 MI SW of Otter Lk RD · Structure no. 000000000013998

Built
1977
48 years old
Condition
Fair
inspected September 2023
Type
Culvert
Steel
Length
20 ft
2 main spans
Daily traffic
155
2017 count
Owner
County
County Highway Agency

About this bridge

Cyclone RD over Forest Drain is a steel culvert carrying Cyclone RD over Forest Drain in Lapeer County, Michigan. It was built in 1977, so it is 48 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 155 vehicles a day, roughly 5% of them trucks, projected to reach 189 by 2037. The structure is 20 ft (6.2 m) long.

CarriesCyclone RD
CrossesForest Drain
Location0.3 MI SW of Otter Lk RD
RouteCounty Highway 0
Coordinates43.2147, -83.37509
Functional classRural Minor Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating107.1 US tons
Inventory rating85.8 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadUnknown
Structure length20 ft (6.2 m)
Longest span9 ft (2.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic155 (2017)
Projected traffic189 by 2037
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 Cyclone RD over Forest Drain built?

It was built in 1977, making it 48 years old in 2025.

What condition is Cyclone RD over Forest Drain 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 September 2023.

How much traffic does Cyclone RD over Forest Drain carry?

About 155 vehicles per day (2017 count), of which roughly 5% are trucks.

How long is Cyclone RD over Forest Drain?

The structure is 20 ft (6.2 m) long with a longest span of 9 ft (2.7 m).

Who owns Cyclone RD over Forest Drain?

It is owned by the County Highway Agency.