Road Stream Crossing Site S481

Boardman River Watershed, North Branch Boardman River

Broomhead Rd

Crossing: Broomhead Road / North Branch Boardman River

Whitewater Twp, Grand Traverse County

GPS Coordinates: 44.69018 , -85.36712

T27N R09W Sec 35

Road Surface: Paved

Maintenance: year around

Existing Drainage Control? yes

Any Failings? no

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

Is this crossing constricted? yes

Are there adjacent wetlands? yes

Comments: Cuold use more woody debris and plantings

Slope: 0%

Vegetation: partial

Length: 120 ft.

Slope: 1-5%

Vegetation: partial

Shape: round

Material: galvanized

Condition :good

Flow: clear

Fill Depth: 2.5 ft.

Embankment Slope: 1:1 slope

Fill Depth: 2.5 ft.

Embankment Slope: 1:1 slope

Stream Width: 15 ft.

Stream Depth: 16 in.

Stream Current: moderate

Stream Substrate: sand

Stream Width: 75 ft.

Stream Depth: 72 in.

Stream Current: slow

Stream Substrate: sand

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

Action Recommended? no

Add pavement? no

Add paved raised edge? no

Increase fill? no

Replace culvert(s)? no

Dimensions of replacement: open bottom structure

Extend culvert(s)? no

Comments: stream narrows to 30 ft wide downstream of plunge pool.