Road Stream Crossing Site S419A

Boardman River Watershed, Carpenter Creek
Carpenter Creek Rd
Crossing: Carpenter Creek Road / Carpenter Creek
Union Twp, Grand Traverse County
Information collected by:
Grand Travese Conservation District
GPS Coordinates: 44.64553 , -85.39754
T26N R09W Sec 16
Adjacent Land Owned by Private
Perch Height: 0.17 ft.
Severity: Severe
Site Location
 
Inlet
Outlet
Road Approach - Left
Road Approach - Right
Crossing Information
Road Width at Culvert: 14 ft.
Road Surface: Sand
Maintenance: seasonal
Low Point: 36' SE of crossing, 36' NW of crossing
Existing Drainage Control? no
Any Failings? no
Type of Crossing: culvert(s) (single culvert)
Is this crossing constricted? yes
Are there adjacent wetlands? yes
Approaches
Left Approach
Length: 200 ft.
Slope: 1-5%
Vegetation: partial
Right Approach
Length: 180 ft.
Slope: 0%
Vegetation: partial
Culvert Information
Shape: arc pipe
Length: 18 ft.
Diameter: 3.5 feet wide, 2 feet tall ft.
Material: galvanized
Condition :good
Flow: fish passage problem
Perch Height: 0.17 ft.
Embankments
Upstream
Fill Depth: 1.5 ft.
Embankment Slope: vertical
Downstream
Fill Depth: 1.5 ft.
Embankment Slope: vertical
Stream Information
Upstream
Stream Width: 10 ft.
Stream Depth: 3 in.
Stream Current: moderate
Stream Substrate: sand
Downstream
Stream Width: 10 ft.
Stream Depth: 3 in.
Stream Current: moderate
Stream Substrate: sand,gravel
Erosion Information
Conditions
Is there Streambank erosion beside the crossing? no
Is there embankment erosion? yes
Is there erosion at the culvert outlet? no
Is there erosion at the shoulder and/or ditch? yes
Is there pooling at the outlet? no
Is there sand over the crossing? yes
 
Extent of Erosion: severe
Cause of Erosion: Undersized Culverts
Recommended Treatments
Action Recommended? yes
Add pavement? yes
Pave Left Approach: 200 Lineal Feet
Pave Right Approach: 180 Lineal Feet
Add paved raised edge? yes
Number of diversion outlets: 4
Increase fill? no
Replace culvert(s)? no
Dimensions of replacement: 10 ft wide, 30 ft long, Low-Profile Aluminum Box
Extend culvert(s)? no
Other Treatments: 3 cu. yds Rock Riprap, Small Revegetation Job
Comments: Gravel in the stream is from road runoff and the current is accelerated through the culvert.
 
Severity:Severe
This page last updated on 2/9/2022.