Road Stream Crossing Site S886

Boardman River Watershed, Robbin's Creek

Private Trail

Garfield Twp, Grand Traverse County

GPS Coordinates: 44.69955 , -85.63285

T27N R11W Sec 34

Road Width at Culvert: 6 ft.

Road Surface: Sand

Maintenance: seasonal

Low Point: At Stream

Existing Drainage Control? no

Any Failings? no

Type of Crossing: Bridge

Is this crossing constricted? yes

Are there adjacent wetlands? yes

Slope: >10%

Vegetation: partial

Slope: 6-10%

Vegetation: partial

Length: 6 ft.

Diameter: 6 ft wide, 2.5 ft tall ft.

Material: timber

Condition :fair

Flow: fish passage problem

Embankment Slope: vertical

Embankment Slope: vertical

Stream Width: 5 ft.

Stream Depth: 6 in.

Stream Current: moderate

Stream Substrate: sand,gravel

Stream Width: 10 ft.

Stream Depth: 24 in.

Stream Current: slow

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: severe

Cause of Erosion: dam / bridge structure

Action Recommended? yes

Add pavement? no

Add paved raised edge? no

Increase fill? no

Replace culvert(s)? no

Extend culvert(s)? no

Other Treatments: See comments...

Comments: Railroad tie dam at outlet causes flooding and blocks fish passage.

Structure should be entirely removed unless the landowner wishes to keep it. In that case, the dam should come out and the bridge should be rebuilt.