Road Stream Crossing Site PG114

Pigeon River Watershed, Little Pigeon River
Antler Drive
Nunda Twp, Cheboygan County
Information collected by:
Huron Pines
Site Location
GPS Coordinates: 45.21832 , -84.49442
T33N R02W Sec 25
Owned by Private
Fish Passability 0
Perch Height: 0.5 ft.
Total Erosion: 0.8864 tons/year
0.4 Upstream Miles
Severity: Severe
Year Inventoried: 2012
Inlet
Outlet
Upstream Conditions
Road Approach - Left
Road Approach - Right
Crossing Information
Type of Crossing: culvert(s)
Number of Structures: 2
Structure Shape: Round
Inlet Type: Trash Rack
Outlet Type: Freefall into Pool
Structure Material: Metal
Structure Substrate: None
General Conditions: Fair
Structure Interior: corrugated
Dimensions of Structure: Length 35 ft. , Width 1.5 ft. , Height 1.5 ft.
Perch Height: 0.5 ft.
Structure Inlet
Water Depth: 0.6 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 1.7 ft./sec.
Structure Outlet
Water Depth: 1.1 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 3.8 ft./sec.
*Water Velocities were measured at the Surface (with Meter)
Stream Information
Stream Flow: Less than Bankfull
Scour Pool: Length 9 ft. , Width 9 ft. , Depth 1.4 ft.
Upstream Pond: Length 0 ft. , Width 0 ft. , Depth 0 ft.
Riffle Information
Water Depth: 0.3 ft.
Bankfull Width: 70 ft.
Wetted Width: 4 ft.
Water Velocity: 0.5 ft./sec. (Measured with Meter)
Dominant Substrate: Gravel
Road Information
Gravel County Road
Road Condition: Fair
Road Width at Culvert: 15 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 2.2 ft.
Slope: 1:2
Downstream
Fill Depth: 2.3 ft.
Slope: Vertical
Approaches
Left Approach
Length: 350 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.47
Erosion: 0.6798 tons/year
Right Approach
Length: 1000 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0.2066 tons/year
Erosion Information
Total Erosion at Crossing: 0.8864 tons/year
Location of Erosion
Erosion Dimensions
Eroded Material
Material Eroded
Total Erosion
facing downstream
Length
Width
Depth
Reaching Stream?
(tons/year)
Right Downtream Ditch
5.2 ft.
4.8 ft.
1.3 ft.
yes
Sand
Summary Information
Fish Passability 0
0.4 Upstream Miles
Fish Passage is an area of concern for this site. Outlet is perched