Road Stream Crossing Site E26
Maple River Watershed, Tributary of Maple River
Old State Rd
Emmet County
Information collected by:
Site Location
GPS Coordinates: 45.49941
, -84.75774
T36N
R4W
Sec 23
Owned by Private
Structure is NOT Perched
Total Erosion: 0.438 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: At Stream Grade
Structure Material: Metal
Structure Substrate: None
General Conditions: Good
Structure Interior: corrugated
Dimensions of Structure: Length 50 ft.
, Width 2.2 ft.
, Height 2.2 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 0.3 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0.4 ft./sec.
Structure Outlet
Water Depth: 0.8 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0.1 ft./sec.
*Water Velocities were measured 0.3 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: 0.4 ft.
Bankfull Width: 6.5 ft.
Wetted Width: 2.5 ft.
Water Velocity: 0.1 ft./sec.
(Measured with Meter)
Dominant Substrate: Sand
Road Information
Gravel
County Road
Road Condition: Fair
Road Width at Culvert: 15 ft.
Location of Low Point: At Stream
Runoff Path: Roadway
Embankments
Upstream
Fill Depth: 10.5 ft.
Slope: 1:2
Downstream
Fill Depth: 9 ft.
Slope: 1:2
Approaches
Left Approach
Length: 400 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0.0826 tons/year
Right Approach
Length: 200 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.43
Erosion: 0.3554 tons/year
Erosion Information
Total Erosion at Crossing: 0.438 tons/year
Extent of Erosion: Moderate
Summary Information
Erosion is an area of concern for this site.