US Bridges

Inwood Road over Stony Creek

PoorPosted for load

Macomb County, Michigan · 0.6 MI East of Mt Vernon · Structure no. 000000000006405

Built
1960
65 years old
Condition
Poor
inspected July 2024
Type
Culvert
Steel
Length
29 ft
2 main spans
Daily traffic
110
2009 count
Owner
County
County Highway Agency

About this bridge

Inwood Road over Stony Creek is a steel culvert carrying Inwood Road over Stony Creek in Macomb County, Michigan. It was built in 1960, so it is 65 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 4 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 110 vehicles a day, roughly 2% of them trucks, projected to reach 163 by 2029. The structure is 29 ft (8.8 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesInwood Road
CrossesStony Creek
Location0.6 MI East of Mt Vernon
RouteCounty Highway 0
CountyMacomb County
StateMichigan
Coordinates42.76358, -83.07445
Functional classRural Minor Collector

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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJuly 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating16.8 US tons
Inventory rating10 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadH 20
Structure length29 ft (8.8 m)
Longest span13 ft (3.9 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic110 (2009)
Projected traffic163 by 2029
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Inwood Road over Stony Creek built?

It was built in 1960, making it 65 years old in 2025.

What condition is Inwood Road over Stony Creek 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 July 2024.

How much traffic does Inwood Road over Stony Creek carry?

About 110 vehicles per day (2009 count), of which roughly 2% are trucks.

How long is Inwood Road over Stony Creek?

The structure is 29 ft (8.8 m) long with a longest span of 13 ft (3.9 m).

Who owns Inwood Road over Stony Creek?

It is owned by the County Highway Agency.