Road Stream Crossing Site PLT-I-18

Platte River Watershed, Stanley Creek

North Carmean Rd

Inland Twp, Benzie County

GPS Coordinates: 44.66241 , -85.91909

T26 R13 Sec 8

Road Width at Culvert: 25 ft.

Road Surface: Gravel

Maintenance: seasonal

Low Point: At Stream

Existing Drainage Control? no

Any Failings? no

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

Is this crossing constricted? no

Are there adjacent wetlands? yes

Length: 100 ft.

Slope: 0%

Vegetation: partial

Length: 200 ft.

Slope: 0%

Vegetation: partial

Length: 55 ft.

Diameter: 4.5 ft.

Material: galvanized

Condition :fair

Flow: clear

Fill Depth: 6.5 ft.

Embankment Slope: 1:1

Fill Depth: 6.5 ft.

Embankment Slope: vertical

Stream Width: 8.5 ft.

Stream Depth: 1 in.

Stream Current: moderate

Stream Substrate: sand,gravel

Stream Width: 11 ft.

Stream Depth: 1.5 in.

Stream Current: fast

Stream Substrate: sand,gravel

Is there Streambank erosion beside the crossing? no

Is there embankment erosion? no

Is there erosion at the culvert outlet? no

Is there erosion at the shoulder and/or ditch? no

Is there pooling at the outlet? yes

Is there sand over the crossing? no

 

Extent of Erosion: minor

Cause of Erosion: Stream Constriction

Action Recommended? no

Add pavement? yes

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: 0

Increase fill? no

Replace culvert(s)? yes

Extend culvert(s)? no

Lineal feet to extend: 0

Comments: the stream is constricted resulted in increased velocities through the culvert and scouring

 

Total Points:0