Road Stream Crossing Site CLHW_BC-012

Big Creek Watershed, Chub Creek
Janish Rd
Mason Twp, Arenac County
Information collected by:
Huron Pines
Site Location
GPS Coordinates: 44.12009 , -83.88319
T20N R5E Sec 21
Owned by Private
Fish Passability 0
Perch Height: 1 ft.
Total Erosion: 1.0873 tons/year
Severity: Severe
Year Inventoried: 2016
Site ID
Upstream Conditions
Downstream Conditions
Road Approach - Left
Road Approach - Right
Crossing Information
Type of Crossing: culvert(s)
Number of Structures: 1
Structure Shape: Round
Inlet Type: Projecting
Outlet Type: Freefall into Pool
Structure Material: Metal
Structure Substrate: None
General Conditions: Good
Structure Interior: corrugated
Dimensions of Structure: Length 31 ft. , Width 3 ft. , Height 3 ft.
Perch Height: 1 ft.
Structure Inlet
Water Depth: 0.8 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 4.7 ft./sec.
Structure Outlet
Water Depth: 0.4 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 4.7 ft./sec.
*Water Velocities were measured at the Surface (with Float Test)
Stream Information
Stream Flow: Less than 1/2 Bankfull
Scour Pool: Length 15 ft. , Width 13 ft. , Depth 2 ft.
Upstream Pond: Length 0 ft. , Width 0 ft. , Depth 0 ft.
Riffle Information
Water Depth: 0.4 ft.
Bankfull Width: 6.6 ft.
Wetted Width: 5 ft.
Water Velocity: 1.9 ft./sec. (Measured with Float Test)
Dominant Substrate: Gravel
Road Information
Gravel County Road
Road Condition: Fair
Road Width at Culvert: 17 ft.
Location of Low Point: Other
Runoff Path: Ditch
Fill Depth: 1.6 ft.
Slope: More than 1:2
Fill Depth: 2.6 ft.
Slope: 1:1.5
Left Approach
Length: 470 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.494
Erosion: 1.0873 tons/year
Right Approach
Length: 0 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0 tons/year
Erosion Information
Total Erosion at Crossing: 1.0873 tons/year
Summary Information
Fish Passability 0
Fish Passage is an area of concern for this site. There is a fish barrier issue here, however this is a small stream and may not be considered a priority