Road Stream Crossing Site LMN003
Frontal Lake Michigan Watershed, French Farm Creek
Wilderness Park Drive
Wawatam Twp,
Emmet County
Information collected by:
Site Location
GPS Coordinates: 45.74613
, -84.80113
T39N
R4W
Sec 28
Owned by Local Government
Structure is NOT Perched
Total Erosion: 0.0593 tons/year
Severity: Minor
Year Inventoried: 2018
Inlet
Outlet
Upstream Conditions
Downstream Conditions
Road Approach - Left
Road Approach - Right
Erosion
Erosion
Crossing Information
Type of Crossing: culvert(s)
Number of Structures: 1
Structure Shape: Pipe Arch
Inlet Type: Projecting
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: Sand
General Conditions: Good
Structure Interior: corrugated
Dimensions of Structure: Length 56.5 ft.
, Width 4.5 ft.
, Height 3.1 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 0.7 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0.2528 ft./sec.
Structure Outlet
Water Depth: 1.1 ft.
Embedded Depth of Structure: 0.1 ft.
Water Velocity*: 0.0839 ft./sec.
*Water Velocities were measured 0.45 ft. below Surface
(with Meter)
Additional Comments
Old beaver dam downstream of crossing
Stream Information
Stream Flow: Less than Bankfull
Scour Pool: Length 35 ft.
, Width 14.5 ft.
, Depth 2.5 ft.
Upstream Pond: Length 16 ft.
, Width 14 ft.
Road Information
Paved
County Road
Road Condition: Fair
Road Width at Culvert: 22.25 ft.
Location of Low Point: At Stream
Runoff Path: Roadway
Embankments
Upstream
Fill Depth: 1 ft.
Slope: More than 1:2
Downstream
Fill Depth: 2 ft.
Slope: 1:2
Approaches
Left Approach
Length: 700 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0.0257 tons/year
Right Approach
Length: 750 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0.0276 tons/year
Erosion Information
Total Erosion at Crossing: 0.0593 tons/year
Extent of Erosion: Minor
Location of Erosion | Erosion Dimensions | Eroded Material | Material Eroded | Total Erosion | ||
facing downstream | Length | Width | Depth | Reaching Stream? | (tons/year) | |
Right Downstream Embankment |
6 ft. |
3 ft. |
1 ft. |
yes |
Gravel |
0.006 |
Summary Information
A future visit to this site is recommended. Lots of beaver activity near the site