Road Stream Crossing Site MAN_MI_011
Big Manistee River Watershed, Hopkins Creek
Arnold Rd
Bloomfield Twp,
Missaukee County
Information collected by:
Site Location
GPS Coordinates: 44.44669
, -85.26401
T24N
R8W
Sec 27
Owned by Private
Structure is NOT Perched
Total Erosion: 0.1882 tons/year
Severity: Moderate
Year Inventoried: 2014
Inlet
Outlet
Upstream Conditions
Downstream Conditions
Road Approach - Left
Road Approach - Right
Crossing Information
Type of Crossing: culvert(s)
Number of Structures: 1
Structure Shape: Open Bottom Square/Rectangle
Inlet Type: Other
Outlet Type: At Stream Grade
Structure Material: Concrete
Structure Substrate: Mixture
General Conditions: Fair
Structure Interior: smooth
Dimensions of Structure: Length 31 ft.
, Width 15 ft.
, Height 6.5 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 1.6 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 2.6 ft./sec.
Structure Outlet
Water Depth: 1.4 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 1.7 ft./sec.
*Water Velocities were measured 1 ft. below Surface
(with Meter)
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: 1.3 ft.
Bankfull Width: 28.4 ft.
Wetted Width: 26.4 ft.
Water Velocity: 1.9 ft./sec.
(Measured with Meter)
Dominant Substrate: Gravel
Road Information
Paved
County Road
Road Condition: Good
Road Width at Culvert: 28 ft.
Location of Low Point: Other
Runoff Path: Roadway
Fill Depth: 0 ft.
Slope: Vertical
Fill Depth: 0 ft.
Slope: Vertical
Approaches
Left Approach
Length: 0 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0 tons/year
Right Approach
Length: 420 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.484
Erosion: 0.1882 tons/year
Erosion Information
Total Erosion at Crossing: 0.1882 tons/year
Extent of Erosion: Moderate
Summary Information
Erosion is an area of concern for this site.