Road Stream Crossing Site BL-30

Crooked River Watershed, Iduna Creek
Hiawatha Trail
Bear Creek Twp, Emmet County
Information collected by:
Tip of the Mitt Watershed Council
Site Location
GPS Coordinates: 45.405427 , -84.880463
T35N R03W Sec 26
Fish Passability 0.5
Total Erosion: 2.7444 tons/year
Severity: Severe
Year Inventoried: 2014
Inlet
Outlet
Downstream Conditions
Upstream Conditions
Road Approach - Left
Road Approach - Right
Crossing Information
Type of Crossing: culvert(s)
Number of Structures: 2
Structure Shape: Round
Inlet Type: Projecting
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: None
General Conditions: Fair
Multiple Culverts/Spans
Culvert/Span
Width
Length
Height
Material
1
2 ft.
47 ft.
2 ft.
Metal
2
3 ft.
50.5 ft.
3 ft.
Metal
Structure Interior: corrugated
Dimensions of Structure: Length 50 ft. , Width 3 ft. , Height 3 ft.
Percentage Crushed: Inlet: 1% to 25%
Structure Inlet
Water Depth: 1.8 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0.13 ft./sec.
Structure Outlet
Water Depth: 1.6 ft.
Embedded Depth of Structure: 0.17 ft.
Water Velocity*: 0.39 ft./sec.
*Water Velocities were measured 1 ft. below Surface (with Meter)
Additional Comments
LTC Round Lake Preserve
Stream Information
Stream Flow: Less than Bankfull
Riffle Information
Water Depth: 2 ft.
Bankfull Width: 9 ft.
Wetted Width: 9 ft.
Water Velocity: 0.4 ft./sec. (Measured with Meter)
Road Information
Gravel County Road
Road Condition: Fair
Road Width at Culvert: 32 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 4 ft.
Slope: 1:1.5
Downstream
Fill Depth: 3 ft.
Slope: Vertical
Approaches
Left Approach
Length: 150 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.4
Erosion: 0.5289 tons/year
Right Approach
Length: 500 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.5
Erosion: 2.2039 tons/year
Erosion Information
Total Erosion at Crossing: 2.7444 tons/year
Extent of Erosion: Moderate
Location of Erosion
Erosion Dimensions
Eroded Material
Material Eroded
Total Erosion
facing downstream
Length
Width
Depth
Reaching Stream?
(tons/year)
Left Approach
3 ft.
15 ft.
0.5 ft.
yes
Sand
0.0116
Summary Information
Fish Passability 0.5
Erosion is an area of concern for this site. erosion is bad between upstream culvert and c1/c2