Road Stream Crossing Site BL-41
Maple River Watershed, Maple River
Maple River Rd
Emmet County
Information collected by:
Site Location
GPS Coordinates: 45.50767
, -84.76231
T36N
R4W
Sec 14
Owned by Private
Structure is NOT Perched
Total Erosion: 0.0711 tons/year
Severity: Restored
Year Inventoried: 2014
Outlet
Upstream Conditions
Downstream Conditions
Road Approach - Left
Road Approach - Right
Other
Crossing Information
Type of Crossing: Bridge
Structure Shape: Open Bottom Square/Rectangle
Inlet Type: Wingwall 30-70 Degree
Outlet Type: At Stream Grade
Structure Material: Concrete
Structure Substrate: Mixture
General Conditions: New
Structure Interior: smooth
Dimensions of Structure: Length 32 ft.
, Width 60 ft.
, Height 10 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 1.5 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 2 ft./sec.
Structure Outlet
Water Depth: 2 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 2.2 ft./sec.
*Water Velocities were measured 0.8 ft. below Surface
(with Meter)
Additional Comments
Installed November 2015.
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: 1.8 ft.
Bankfull Width: 53 ft.
Wetted Width: 51 ft.
Water Velocity: 1.3 ft./sec.
(Measured with Meter)
Dominant Substrate: Sand
Road Information
Paved
County Road
Road Condition: Good
Road Width at Culvert: 30 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: 450 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.43
Erosion: 0.0711 tons/year
Length: 0 ft.
Slope: Less Than 1%
Vegetation: Heavy
Erosion Information
Total Erosion at Crossing: 0.0711 tons/year
Extent of Erosion: Stabilized
Summary Information
Erosion is an area of concern for this site.