Road Stream Crossing Site PM_M153

Pere Marquette River Watershed, Mosquito Creek
1st St
Amber Twp, Mason County
Information collected by:
Site Location
GPS Coordinates: 43.94844 , -86.38721
T18N R17W Sec 18
Owned by Private
Fish Passability 0.5
Total Erosion: 0.3841 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: Round
Inlet Type: Projecting
Outlet Type: Other
Structure Material: Metal
Structure Substrate: None
General Conditions: Poor
Structure Interior: smooth
Dimensions of Structure: Length 32 ft. , Width 2.5 ft. , Height 2.5 ft.
Structure Inlet
Water Depth: 2 ft.
Water Velocity*: 0 ft./sec.
Structure Outlet
Water Depth: 2.8 ft.
Water Velocity*: 0 ft./sec.
*Water Velocities were measured 2 ft. below Surface (with Meter)
Additional Comments
Poor- outlet is underwater and not visible
Stream Information
Stream Flow: Less than 1/2 Bankfull
Scour Pool: Length 17 ft. , Width 12 ft. , Depth 3 ft.
Upstream Pond: Length 8 ft. , Width 7 ft. , Depth 2 ft.
Riffle Information
Water Depth: 0.2 ft.
Bankfull Width: 8 ft.
Wetted Width: 3 ft.
Water Velocity: 0.3 ft./sec. (Measured with Meter)
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
Embankments
Upstream
Fill Depth: 5 ft.
Slope: Vertical
Downstream
Fill Depth: 6 ft.
Slope: Vertical
Approaches
Left Approach
Length: 200 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0.0468 tons/year
Right Approach
Length: 200 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0.0468 tons/year
Erosion Information
Total Erosion at Crossing: 0.3841 tons/year
Extent of Erosion: Severe
Location of Erosion
Erosion Dimensions
Eroded Material
Material Eroded
Total Erosion
facing downstream
Length
Width
Depth
Reaching Stream?
(tons/year)
Right Upstream Embankment
12 ft.
5 ft.
0.5 ft.
yes
Loam
0.1056
Right Downstream Embankment
10 ft.
6 ft.
0.3 ft.
yes
Loam
0.0528
Left Approach
30 ft.
1 ft.
0.1 ft.
yes
Sand
0.066
Right Approach
30 ft.
1 ft.
0.1 ft.
yes
Sand
0.066
Summary Information
Fish Passability 0.5
Erosion is an area of concern for this site.
A future visit to this site is recommended. culvert underwater and causing erosion