Road Stream Crossing Site PM_L029
Pere Marquette River Watershed, Baldwin River
US-10
Webber Twp,
Lake County
Information collected by:
Site Location
GPS Coordinates: 43.9008378097449
, -85.8354943245649
T18N
R13W
Sec 35
Owned by Private
State
State
Total Erosion: 0.5961 tons/year
Severity: Moderate
Year Inventoried: 2014
Inlet
Outlet
Upstream Conditions
Downstream Conditions
Road Approach - Left
Road Approach - Right
Crossing Information
Type of Crossing: Bridge
Structure Shape: Open Bottom Square/Rectangle
Inlet Type: Projecting
Outlet Type: At Stream Grade
Structure Material: Concrete
Structure Substrate: Mixture
General Conditions: Good
Structure Interior: smooth
Dimensions of Structure: Length 44 ft.
, Width 35 ft.
, Height 14 ft.
Structure Inlet
Water Depth: 2.7 ft.
Water Velocity*: 1.5 ft./sec.
Structure Outlet
Water Depth: 2.4 ft.
Water Velocity*: 1.2 ft./sec.
*Water Velocities were measured 1 ft. below Surface
(with Meter)
Stream Information
Stream Flow: Less than 1/2 Bankfull
Riffle Information
Water Depth: 1.8 ft.
Bankfull Width: 45 ft.
Wetted Width: 33 ft.
Water Velocity: 1.4 ft./sec.
(Measured with Meter)
Dominant Substrate: Gravel
Road Information
Paved
Federal Road
Road Condition: Good
Road Width at Culvert: 35 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Slope: Vertical
Slope: Vertical
Approaches
Left Approach
Length: 180 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.418
Erosion: 0.0871 tons/year
Right Approach
Length: 800 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.55
Erosion: 0.5091 tons/year
Erosion Information
Total Erosion at Crossing: 0.5961 tons/year
Extent of Erosion: Minor
Summary Information
Erosion is an area of concern for this site.