US Bridges

Cone RD over Warren Lewis Drain

Good

Monroe County, Michigan · 4.65 MI E of Lenawee CO · Structure no. 000000000007259

Built
2004
21 years old
Condition
Good
inspected October 2024
Type
Culvert
Concrete
Length
26 ft
1 main span
Daily traffic
890
2016 count
Owner
County
County Highway Agency

About this bridge

Cone RD over Warren Lewis Drain is a concrete culvert carrying Cone RD over Warren Lewis Drain in Monroe County, Michigan. It was built in 2004, so it is 21 years old, younger than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 890 vehicles a day, roughly 2% of them trucks, projected to reach 1,024 by 2036. The structure is 26 ft (8 m) long. If it were closed, the detour would be 5 mi (8 km).

CarriesCone RD
CrossesWarren Lewis Drain
Location4.65 MI E of Lenawee CO
RouteCounty Highway 0
Coordinates42.03334, -83.68548
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating67.1 US tons
Inventory rating40.3 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length26 ft (8 m)
Longest span22 ft (6.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic890 (2016)
Projected traffic1,024 by 2036
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 Cone RD over Warren Lewis Drain built?

It was built in 2004, making it 21 years old in 2025.

What condition is Cone RD over Warren Lewis Drain in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2024.

How much traffic does Cone RD over Warren Lewis Drain carry?

About 890 vehicles per day (2016 count), of which roughly 2% are trucks.

How long is Cone RD over Warren Lewis Drain?

The structure is 26 ft (8 m) long with a longest span of 22 ft (6.7 m).

Who owns Cone RD over Warren Lewis Drain?

It is owned by the County Highway Agency.