Road Stream Crossing Site S913

Boardman River Watershed, Miller Creek

Cass Rd

Crossing: Cass Road / Miller Creek

Garfield Twp, Grand Traverse County

GPS Coordinates: 44.7228 , -85.62589

T27N R11W Sec 22

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

Slope: 0%

Vegetation: heavy

Slope: 0%

Vegetation: heavy

Shape: round

Condition :good

Flow: fish passage problem

Fill Depth: 10 ft.

Embankment Slope: 1:1 slope

Fill Depth: 10 ft.

Embankment Slope: 1:1 slope

Stream Width: 8 ft.

Stream Depth: 4 in.

Stream Current: fast

Stream Substrate: sand,gravel

Stream Width: 8 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? no

Is there pooling at the outlet? yes

Is there sand over the crossing? no

 

Extent of Erosion: moderate

Cause of Erosion: road runoff, inadequate structure

Action Recommended? yes

Add pavement? no

Add paved raised edge? no

Increase fill? no

Replace culvert(s)? no

Dimensions of replacement: open-bottom structure, 8 ft wide

Extend culvert(s)? no

Comments: Culvert dimensions / material:

Inlet - 4 ft diameter, concrete

Outlet - 4.5 ft diameter, galvanized

Current is accelerated through culvert which acts as a fish passage barrier.