Road Stream Crossing Site PM_L048
Pere Marquette River Watershed, Middle Branch
Kings Highway
Yates Twp,
Lake County
Information collected by:
Site Location
GPS Coordinates: 43.87318
, -85.72374
T17N
R12W
Sec 10
Owned by Private
Fish Passability 0
Total Erosion: 0.1237 tons/year
Severity: Severe
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
Outlet Type: At Stream Grade
Structure Material: Concrete
Structure Substrate: Mixture
General Conditions: Good
Dimensions of Structure: Length 20 ft.
, Width 36 ft.
, Height 6 ft.
Structure Inlet
Water Depth: 0.6 ft.
Water Velocity*: 3.6 ft./sec.
Structure Outlet
Water Depth: 0.9 ft.
Water Velocity*: 2.8 ft./sec.
*Water Velocities were measured 0.5 ft. below Surface
(with Meter)
Stream Information
Stream Flow: Less than Bankfull
Riffle Information
Water Depth: 0.7 ft.
Bankfull Width: 24 ft.
Wetted Width: 20 ft.
Water Velocity: 3.5 ft./sec.
(Measured with Meter)
Dominant Substrate: Gravel
Road Information
Gravel
County Road
Road Condition: Fair
Road Width at Culvert: 20 ft.
Location of Low Point: At Stream
Runoff Path: Roadway
Approaches
Left Approach
Length: 30 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.298
Erosion: 0.0493 tons/year
Right Approach
Length: 150 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0.0413 tons/year
Erosion Information
Total Erosion at Crossing: 0.1237 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) | |
Left Upstream Embankment |
10 ft. |
1 ft. |
0.5 ft. |
yes |
Gravelly Loam |
0.005 |
Right Downstream Embankment |
10 ft. |
1 ft. |
0.5 ft. |
yes |
Gravelly Loam |
0.005 |
Right Approach |
150 ft. |
1 ft. |
0.1 ft. |
yes |
Sand |
0.0165 |
Left Approach |
30 ft. |
1 ft. |
0.1 ft. |
yes |
Sand |
0.0033 |
Left Approach |
30 ft. |
1 ft. |
0.1 ft. |
yes |
Sand |
0.0033 |
Summary Information
Fish Passability 0