Road Stream Crossing Site AGAR001

Au Gres River Watershed, Au Gres River
Mackinaw Rd
Turner Twp, Alcona County
Information collected by:
Huron Pines
Site Location
GPS Coordinates: 44.09705 , -83.68586
T20N R7E Sec 31
Owned by Private
Fish Passability 0.5
Structure is NOT Perched
Total Erosion: 0 tons/year
Severity: Moderate
Year Inventoried: 2014
Site ID
Inlet
Outlet
Upstream Conditions
Downstream Conditions
Road Approach - Left
Road Approach - Right
Crossing Information
Type of Crossing: Bridge
Structure Shape: Open Bottom Square/Rectangle
Inlet Type: Other
Outlet Type: At Stream Grade
Structure Material: Wood
Structure Substrate: None
General Conditions: Fair
Structure Interior: smooth
Dimensions of Structure: Length 25 ft. , Width 93 ft. , Height 9.6 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 2.9 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 2.6 ft./sec.
Structure Outlet
Water Depth: 1.6 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 1 ft./sec.
*Water Velocities were measured 0.5 ft. below Surface (with Meter)
Additional Comments
River wide, shallow, and sandy. River lacks large woody debris.
Stream Information
Stream Flow: Less than Bankfull
Scour Pool: Length 0 ft. , Width 0 ft. , Depth 0 ft.
Upstream Pond: Length 0 ft. , Width 0 ft. , Depth 0 ft.
Riffle Information
Water Depth: 1.1 ft.
Bankfull Width: 92.5 ft.
Wetted Width: 56.3 ft.
Water Velocity: 0.7 ft./sec. (Measured with Meter)
Dominant Substrate: Gravel
Road Information
Gravel County Road
Road Condition: Good
Road Width at Culvert: 23 ft.
Location of Low Point: Other
Runoff Path: Ditch
Fill Depth: 0 ft.
Slope: Vertical
Fill Depth: 0 ft.
Slope: Vertical
Approaches
Left Approach
Length: 0 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.26
Erosion: 0 tons/year
Right Approach
Length: 0 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.26
Erosion: 0 tons/year
Erosion Information
Total Erosion at Crossing: 0 tons/year
Notes: None.
Summary Information
Fish Passability 0.5
These non-native species were observerd at this site: Purple Loosestrife, Mullien