Road Stream Crossing Site RIF_AR3
Rifle River Watershed, Rifle River
Maple Ridge Rd
Clayton Twp,
Arenac County
Information collected by:
Site Location
GPS Coordinates: 44.14143
, -84.04386
T20N
R4E
Sec 18
Fish Passability 1
Structure is NOT Perched
Total Erosion: 2.7065 tons/year
Severity: Severe
Year Inventoried: 2012
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: Other
Outlet Type: At Stream Grade
Structure Material: Concrete
Structure Substrate: Mixture
General Conditions: Fair
Structure Interior: smooth
Dimensions of Structure: Length 31 ft.
, Width 181 ft.
, Height 24 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 1.2 ft.
Water Velocity*: 1 ft./sec.
Structure Outlet
Water Depth: 1.4 ft.
Water Velocity*: 1 ft./sec.
*Water Velocities were measured at the Surface
(with Float Test)
Stream Information
Stream Flow: Less than 1/2 Bankfull
Scour Pool: Length 0 ft.
, Width 0 ft.
, Depth 0 ft.
Upstream Pond: Length 0 ft.
, Width 0 ft.
, Depth 0 ft.
Riffle Information
Water Depth: 1.1 ft.
Bankfull Width: 99 ft.
Wetted Width: 96 ft.
Water Velocity: 1 ft./sec.
(Measured with Float Test)
Dominant Substrate: Cobble
Road Information
Paved
County Road
Road Condition: Good
Road Width at Culvert: 24 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 4.2 ft.
Slope: Vertical
Downstream
Fill Depth: 4 ft.
Slope: Vertical
Approaches
Left Approach
Length: 657 ft.
Slope: 6% to 10%
Vegetation: Heavy
LS Factor: 1.788
Erosion: 0.9322 tons/year
Right Approach
Length: 1000 ft.
Slope: 6% to 10%
Vegetation: Heavy
LS Factor: 2.05
Erosion: 1.6264 tons/year
Erosion Information
Total Erosion at Crossing: 2.7065 tons/year
Extent of Erosion: Moderate
Notes: the erosion is happening under bridge
Location of Erosion | Erosion Dimensions | Eroded Material | Material Eroded | Total Erosion | ||
facing downstream | Length | Width | Depth | Reaching Stream? | (tons/year) | |
Right Ditch |
48 ft. |
24 ft. |
0.2 ft. |
yes |
Sand |
0.0739 |
Left Ditch |
48 ft. |
18 ft. |
0.2 ft. |
yes |
Sand |
0.0739 |
Summary Information
Fish Passability 1
A future visit to this site is recommended. purple loosesrief
These non-native species were observerd at this site: Purple Loosestrife