Road Stream Crossing Site B-083

Betsie River Watershed, Crystal Lake tributary

Thomas Rd

Crystal Lake Twp, Benzie County

GPS Coordinates: 44.65786755 , -86.22644102

T26N R16W Sec 15

Road Width at Culvert: 21 ft.

Road Surface: Paved

Maintenance: year around

Low Point: Right Approach

Existing Drainage Control? no

Any Failings? no

Type of Crossing: culvert(s) (single culvert)

Is this crossing constricted? no

Are there adjacent wetlands? no

Comments: Upstream is a private crossing.

Length: 750 ft.

Slope: 1-5%

Vegetation: partial

Length: 0 ft.

Slope: 0%

Vegetation: partial

Length: 50 ft.

Diameter: 42 ft.

Material: concrete

Condition :fair

Flow: clear

Fill Depth: 10 ft.

Embankment Slope: 2:1

Fill Depth: 10 ft.

Embankment Slope: 1.5:1

Stream Width: 2 ft.

Stream Depth: 0.5 in.

Stream Current: moderate

Stream Substrate: sand

Stream Width: 3 ft.

Stream Depth: 0.5 in.

Stream Current: moderate

Stream Substrate: sand

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: Downstream culvert extension detached.

 

Extent of Erosion: moderate

Action Recommended? no

Add pavement? no

Add paved raised edge? no

Number of erosion control structures: 0

Number of sediment basins: 0

Number of diversion outlets: 1

Increase fill? no

Replace culvert(s)? no

Dimensions of replacement: 0

Extend culvert(s)? no

Lineal feet to extend: 0

Other Treatments: Secure culvert extension.