Road Stream Crossing Site AUS_CR092
Au Sable River Watershed, Tributary of North Branch Au Sable River
McMaster's Bridge Rd
Lovells Twp,
Crawford County
Information collected by:
Site Location
GPS Coordinates: 44.70082
, -84.4196
T27N
R01W
Sec 27
Owned by Private
Fish Passability 0.9
Structure is NOT Perched
Total Erosion: 1.252 tons/year
Severity: Moderate
Year Inventoried: 2013
Crossing Information
Type of Crossing: culvert(s)
Number of Structures: 1
Structure Shape: Round
Inlet Type: Apron
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: Gravel
General Conditions: Fair
Structure Interior: corrugated
Dimensions of Structure: Length 54 ft.
, Width 2 ft.
, Height 1.8 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 0.8 ft.
Embedded Depth of Structure: 0.2 ft.
Water Velocity*: 0.87 ft./sec.
Structure Outlet
Water Depth: 0.6 ft.
Embedded Depth of Structure: 0.2 ft.
Water Velocity*: 1.19 ft./sec.
*Water Velocities were measured at the Surface
(with Float Test)
Stream Information
Stream Flow: Less than 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: 0.5 ft.
Bankfull Width: 7 ft.
Wetted Width: 5 ft.
Water Velocity: 0.866 ft./sec.
(Measured with Float Test)
Dominant Substrate: Sand
Road Information
Paved
County Road
Road Condition: Good
Road Width at Culvert: 33 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 2.7 ft.
Slope: More than 1:2
Downstream
Fill Depth: 3 ft.
Slope: More than 1:2
Approaches
Left Approach
Length: 1000 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.57
Erosion: 0.6218 tons/year
Right Approach
Length: 828 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.553
Erosion: 0.4993 tons/year
Erosion Information
Total Erosion at Crossing: 1.252 tons/year
Extent of Erosion: Moderate
Notes: Installation of silt fences would be beneficial for the site.
Location of Erosion | Erosion Dimensions | Eroded Material | Material Eroded | Total Erosion | ||
facing downstream | Length | Width | Depth | Reaching Stream? | (tons/year) | |
Left Downstream |
10 ft. |
6 ft. |
2.2 ft. |
yes |
Silt |
0.1309 |
Summary Information
Fish Passability 0.9
A future visit to this site is recommended. To make sure everything is in good condition b/c this stream is a nursery for juvenille trout.