Road Stream Crossing Site PLT-I-21

Platte River Watershed, Platte River

County Rd 669

Inland Twp, Benzie County

GPS Coordinates: 44.68144 , -85.9223

T26 R13 Sec 6

Road Width at Culvert: 30 ft.

Road Surface: Paved

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? no

Are there adjacent wetlands? yes

Length: 200 ft.

Slope: 0%

Vegetation: partial

Length: 400 ft.

Slope: 1-5%

Vegetation: partial

Length: 50 ft.

Diameter: 10 ft.

Material: galvanized

Condition :good

Flow: fish passage problem

Fill Depth: 12 ft.

Embankment Slope: vertical

Fill Depth: 13 ft.

Embankment Slope: vertical

Stream Width: 30 ft.

Stream Depth: 2 in.

Stream Current: moderate

Stream Substrate: sand,gravel

Stream Width: 25 ft.

Stream Depth: 2 in.

Stream Current: fast

Stream Substrate: sand,gravel

Is there Streambank erosion beside the crossing? yes

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; Recreational use

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: 0

Increase fill? no

Replace culvert(s)? yes

Extend culvert(s)? no

Lineal feet to extend: 0

Other Treatments: Remove rock dam at outlet

Comments: The dam it causing a pool to form at the outlet.

 

Total Points:0