Road Stream Crossing Site SML-C-21

Six Mile Lake Watershed, Six Mile Lake Tributary

Six Mile Lake Rd

South Arm Twp, Charlevoix County

GPS Coordinates: 45.14792099 , -85.21578204

T32N R07W Sec 19

Road Width at Culvert: 23 ft.

Road Surface: Paved

Maintenance: year around

Low Point: 75' to left

Existing Drainage Control? yes

Any Failings? yes

Type of Crossing: culvert(s)

Is this crossing constricted? no

Are there adjacent wetlands? no

Length: 200 ft.

Slope: 1-5%

Vegetation: partial

Length: 35 ft.

Slope: 1-5%

Vegetation: partial

Length: 50 ft.

Diameter: 24 ft.

Material: galvanized

Condition :good

Flow: fish passage problem

Fill Depth: 9 ft.

Embankment Slope: 1.5:1

Fill Depth: 10 ft.

Embankment Slope: 1:1

Stream Width: 1 ft.

Stream Depth: 0.2 in.

Stream Current: slow

Stream Substrate: sand, muck

Stream Width: 1 ft.

Stream Depth: 0.2 in.

Stream Current: moderate

Stream Substrate: sand/gravel

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? no

Is there pooling at the outlet? no

Is there sand over the crossing? no

Other Conditions: perched culvert

 

Extent of Erosion: moderate

Action Recommended? no

Add pavement? no

Pave Left Approach: 0 Lineal Feet

Pave Right Approach: 0 Lineal Feet

Add paved raised edge? no

Number of erosion control structures: 0

Number of sediment basins: 0

Number of diversion outlets: 4

Increase fill? no

Replace culvert(s)? yes

Extend culvert(s)? no

Lineal feet to extend: 0

Other Treatments: redistribute rock riprap, revegetate embankments, bury culvert

 

Total Points:0