US Bridges

Doty Road over N Br Willow Run

Fair

Monroe County, Michigan · 1.9 MI N of N Custer RD · Structure no. 000000000007270

Built
1981
44 years old
Condition
Fair
inspected July 2023
Type
Culvert
Concrete
Length
23 ft
2 main spans
Daily traffic
180
2016 count
Owner
County
County Highway Agency

About this bridge

Doty Road over N Br Willow Run is a concrete culvert carrying Doty Road over N Br Willow Run in Monroe County, Michigan. It was built in 1981, so it is 44 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 5 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 180 vehicles a day, roughly 2% of them trucks, projected to reach 207 by 2036. The structure is 23 ft (7 m) long. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesDoty Road
CrossesN Br Willow Run
Location1.9 MI N of N Custer RD
RouteCounty Highway 0
CountyMonroe County
StateMichigan
Coordinates41.97866, -83.50843
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.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating60.1 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length23 ft (7 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 traffic180 (2016)
Projected traffic207 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 Doty Road over N Br Willow Run built?

It was built in 1981, making it 44 years old in 2025.

What condition is Doty Road over N Br Willow Run 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 July 2023.

How much traffic does Doty Road over N Br Willow Run carry?

About 180 vehicles per day (2016 count), of which roughly 2% are trucks.

How long is Doty Road over N Br Willow Run?

The structure is 23 ft (7 m) long with a longest span of 9 ft (2.7 m).

Who owns Doty Road over N Br Willow Run?

It is owned by the County Highway Agency.