Road Stream Crossing Site LTB-061

Little Traverse Bay Watershed, Unknown tributary
Fern
Harbor Springs, Emmet County
Information collected by:
Tip of the Mitt Watershed Council
Site Location
GPS Coordinates: 45.42791954 , -84.95032765
Owned by Private
Other
Fish Passability 0.9
Total Erosion: 0.0129 tons/year
Severity: Minor
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: Mixture
General Conditions: Good
Structure Interior: corrugated
Dimensions of Structure: Length 28 ft. , Width 2 ft. , Height 2 ft.
Percentage Plugged: Inlet: 1% to 25%
Structure Inlet
Water Depth: 0.3 ft.
Embedded Depth of Structure: 0.167 ft.
Water Velocity*: 1.07 ft./sec.
Structure Outlet
Water Depth: 0.4 ft.
Embedded Depth of Structure: 0.167 ft.
Water Velocity*: 0.24 ft./sec.
*Water Velocities were measured 0.18 ft. below Surface (with Meter)
Additional Comments
Roaring Brook Private parking lot (to the left of it when looking at). Old site ID: LTB-5.
Stream Information
Stream Flow: Less than Bankfull
Scour Pool: Length 12 ft. , Width 15 ft. , Depth 1.8 ft.
Riffle Information
Water Depth: 0.45 ft.
Bankfull Width: 13.42 ft.
Wetted Width: 11.167 ft.
Water Velocity: 0.19 ft./sec. (Measured with Meter)
Dominant Substrate: Silt
Road Information
Paved County Road
Road Condition: Good
Road Width at Culvert: 16 ft.
Location of Low Point: Other
Runoff Path: Roadway
Embankments
Upstream
Fill Depth: 6 ft.
Slope: Vertical
Downstream
Fill Depth: 8 ft.
Slope: Vertical
Approaches
Left Approach
Length: 0 ft.
Slope: Less Than 1%
Vegetation: None
LS Factor: 0.05
Erosion: 0 tons/year
Right Approach
Length: 70 ft.
Slope: 1% to 5%
Vegetation: None
LS Factor: 0.348
Erosion: 0.0129 tons/year
Erosion Information
Total Erosion at Crossing: 0.0129 tons/year
Extent of Erosion: Stabilized
Summary Information
Fish Passability 0.9
Fish Passage is an area of concern for this site. shallow and marshy at inlet.
A future visit to this site is recommended. really bad ponding on both side of culvert.
These non-native species were observerd at this site: Snow on the Mountain