US Bridges

Pinconning RD over Watson Drain

Fair

Gladwin County, Michigan · 30 Rods W of Rhodes RD · Structure no. 000000000002921

Built
1985
40 years old
Condition
Fair
inspected March 2024
Type
Culvert
Concrete
Length
22 ft
1 main span
Daily traffic
291
2000 count
Owner
County
County Highway Agency

About this bridge

Pinconning RD over Watson Drain is a concrete culvert carrying Pinconning RD over Watson Drain in Gladwin County, Michigan. It was built in 1985, so it is 40 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 291 vehicles a day, roughly 5% of them trucks, projected to reach 407 by 2020. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesPinconning RD
CrossesWatson Drain
Location30 Rods W of Rhodes RD
RouteCounty Highway 0
CountyGladwin County
StateMichigan
Coordinates43.8552, -84.17891
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating21.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20 + Mod
Structure length22 ft (6.7 m)
Longest span20 ft (6.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic291 (2000)
Projected traffic407 by 2020
Trucks5%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Pinconning RD over Watson Drain built?

It was built in 1985, making it 40 years old in 2025.

What condition is Pinconning RD over Watson 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 March 2024.

How much traffic does Pinconning RD over Watson Drain carry?

About 291 vehicles per day (2000 count), of which roughly 5% are trucks.

How long is Pinconning RD over Watson Drain?

The structure is 22 ft (6.7 m) long with a longest span of 20 ft (6.1 m).

Who owns Pinconning RD over Watson Drain?

It is owned by the County Highway Agency.