Road Stream Crossing Site CRW_044
Cedar River Watershed, West Branch Cedar River
Athey Ave
Hamilton Twp,
Clare County
Information collected by:
Site Location
GPS Coordinates: 44.072133
, -84.66735
T19N
R3W
Sec 4
Owned by Private
Fish Passability 0
Structure is NOT Perched
Total Erosion: 10.5618 tons/year
Severity: Severe
Year Inventoried: 2018
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: Wingwall 10-30 Degree
Outlet Type: At Stream Grade
Structure Material: Wood
Structure Substrate: Mixture
General Conditions: Good
Structure Interior: smooth
Dimensions of Structure: Length 31 ft.
, Width 21 ft.
, Height 5 ft.
Percentage Plugged:
Inlet: 1% to 25%
Outlet: 0%
In Pipe: 0%
Percentage Crushed:
Inlet: 0%
Outlet: 0%
In Pipe: 0%
Structure is NOT Perched
Structure Inlet
Water Depth: 3 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 5.5 ft./sec.
Structure Outlet
Water Depth: 1 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 1.8 ft./sec.
*Water Velocities were measured 0.5 ft. below Surface
(with Meter)
Additional Comments
Lat: 44-04.328'; Long: 84-40.041'
Stream Information
Stream Flow: Less than 1/2 Bankfull
Scour Pool: Length 0 ft.
, Width 0 ft.
, Depth 0 ft.
Upstream Pond: Length 40 ft.
, Width 21 ft.
, Depth 2 ft.
Riffle Information
Water Depth: 1.5 ft.
Bankfull Width: 21 ft.
Wetted Width: 17 ft.
Water Velocity: 1 ft./sec.
(Measured with Meter)
Dominant Substrate: Gravel
Road Information
Gravel
County Road
Road Condition: Good
Road Width at Culvert: 21 ft.
Location of Low Point: Other
Embankments
Upstream
Fill Depth: 1.5 ft.
Slope: Vertical
Downstream
Fill Depth: 1.5 ft.
Slope: Vertical
Approaches
Left Approach
Length: 660 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.529
Erosion: 2.0198 tons/year
Right Approach
Length: 780 ft.
Slope: 6% to 10%
Vegetation: Heavy
LS Factor: 1.893
Erosion: 8.542 tons/year
Erosion Information
Total Erosion at Crossing: 10.5618 tons/year
Extent of Erosion: Moderate
Notes: Erosion is at river
Summary Information
Fish Passability 0
Fish Passage is an area of concern for this site.
Fish passage and erosion. When constructed at inlet large rocks placed across inlet increasing streamflow, grading outlets can reduce erosion
A future visit to this site is recommended. Fish passage and erosion. When constructed at inlet large rocks placed across inlet increasing streamflow, grading outlets can reduce erosion
These non-native species were observerd at this site: Purple Loosestrife