Road Stream Crossing Site S057

Boardman River Watershed, Beitner Creek

Williams Rd

Crossing: Williams Road / Beitner Creek

Blair Twp, Grand Traverse County

GPS Coordinates: 44.67327 , -85.63611

T26N R11W Sec 3, 4

Road Width at Culvert: 22 ft.

Road Surface: Paved

Maintenance: year around

Low Point: At Stream

Existing Drainage Control? yes

Any Failings? no

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

Is this crossing constricted? no

Are there adjacent wetlands? yes

Slope: 0%

Vegetation: heavy

Slope: 0%

Vegetation: heavy

Shape: round

Length: 50 ft.

Diameter: 4 ft diameter ft.

Material: galvanized

Condition :good

Flow: clear

Fill Depth: 3 ft.

Embankment Slope: 1:1 slope

Fill Depth: 3 ft.

Embankment Slope: 1:1 slope

Stream Width: 8 ft.

Stream Depth: 18 in.

Stream Current: moderate

Stream Substrate: sand,gravel

Stream Width: 15 ft.

Stream Depth: 4 in.

Stream Current: fast

Stream Substrate: 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? yes

Is there pooling at the outlet? yes

Is there sand over the crossing? yes

 

Extent of Erosion: moderate

Cause of Erosion: Road runoff, soft shoulder, current accelerated through culvert

Action Recommended? yes

Add pavement? no

Add paved raised edge? yes

Increase fill? no

Replace culvert(s)? no

Extend culvert(s)? no

Comments: Deep plunge pool at outlet but culvert isn't perched. Pool has rock / gravel bottom, not an erosive pool.