Road Stream Crossing Site S420

Boardman River Watershed, Bancroft Creek Tributary
Sparling Rd
Crossing: Sparling Road / Bancroft Creek Tributary
Fife Lake Twp, Grand Traverse County
Information collected by:
Grand Travese Conservation District
GPS Coordinates: 44.57015 , -85.44987
T25N R09W Sec 7, 18
Adjacent Land Owned by Private
Severity: Severe
Site Location
 
Inlet
Outlet
Road Approach - Left
Road Approach - Right
Crossing Information
Road Width at Culvert: 29 ft.
Road Surface: Sand
Gravel
Maintenance: year around
Low Point: At Stream
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
Slope: 1-5%
Vegetation: heavy
Right Approach
Slope: 1-5%
Vegetation: heavy
Culvert Information
Shape: round
Length: 50 ft.
Diameter: 2 ft diameter ft.
Material: steel
Condition :fair
Flow: obstructed
Embankments
Upstream
Fill Depth: 8 ft.
Embankment Slope: 1:1 slope
Downstream
Fill Depth: 10 ft.
Embankment Slope: 1:1 slope
Stream Information
Upstream
Stream Width: 2 ft.
Stream Depth: 1 in.
Stream Current: moderate
Stream Substrate: sand,gravel
Downstream
Stream Width: 2 ft.
Stream Depth: 1 in.
Stream Current: moderate
Stream Substrate: muck
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? yes
Is there sand over the crossing? yes
 
Extent of Erosion: severe
Cause of Erosion: embankment steepness, storm runoff, constricted stream, buried culvert
Recommended Treatments
Action Recommended? yes
Add pavement? yes
Add paved raised edge? yes
Number of diversion outlets: 4
Increase fill? no
Replace culvert(s)? no
Dimensions of replacement: 3 ft diameter, 60+ feet long, round, galvanized
Extend culvert(s)? no
Comments: Both the left and right approach slopes are 5%.

Submerged and obstructed culvert outlet will cause severe flooding upstream an high water events.

Stream severely constricted by this structure.

There was a lot of trash in this very sma
 
Severity:Severe
This page last updated on 2/9/2022.