Road Stream Crossing Site S055

Boardman River Watershed, Beitner Creek Tributary

Railroad & Hoosier Valley Rd

Blair Twp, Grand Traverse County

GPS Coordinates: 44.66393 , -85.64436

T26N R11W Sec 9

Existing Drainage Control? no

Any Failings? no

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

Is this crossing constricted? yes

Are there adjacent wetlands? yes

Comments: Plunge pool at outlet

Shape: round

Diameter: 2.5 ft diameter ft.

Material: steel

Condition :fair

Flow: fish passage problem

Embankment Slope: 1:1 slope

Embankment Slope: 1:1 slope

Stream Width: 6 ft.

Stream Depth: 8 in.

Stream Current: fast

Stream Substrate: sand,gravel

Stream Width: 12 ft.

Stream Depth: 3 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? yes

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: severe

Cause of Erosion: Perched, inadequate culvert. Road runoff from Hoosier Valley Road (nearby).

Action Recommended? yes

Add pavement? yes

Add paved raised edge? yes

Number of sediment basins: 2

Increase fill? no

Replace culvert(s)? no

Dimensions of replacement: open bottom structure, 6 ft wide

Extend culvert(s)? no

Comments: The culvert underneath the railroad is failing and needs replacement.

More serious is the runoff from Hoosier Valley Road. The sediments are covering a significant wetland between the road and creek. They are now begininning to enter the creek ri