Road Stream Crossing Site MAN_MA_031
Big Manistee River Watershed, Chief Creek
Coates Hwy
Brown Twp,
Manistee County
Information collected by:
Site Location
GPS Coordinates: 44.31523
, -86.1385
T22N
R15W
Sec 9
Owned by Private
Perch Height: 2 ft.
Total Erosion: 1.1303 tons/year
Severity: Severe
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: Freefall into Pool
Structure Material: Metal
Structure Substrate: None
General Conditions: Fair
Structure Interior: corrugated
Dimensions of Structure: Length 100 ft.
, Width 6 ft.
, Height 6 ft.
Percentage Plugged:
Inlet: 1% to 25%
Outlet: 0%
In Pipe: 0%
Perch Height: 2 ft.
Structure Inlet
Water Depth: 1.6 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 1.5 ft./sec.
Structure Outlet
Water Depth: 0.8 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 7.6 ft./sec.
*Water Velocities were measured 0.4 ft. below Surface
(with Meter)
Stream Information
Stream Flow: Less than Bankfull
Scour Pool: Length 12 ft.
, Width 15 ft.
, Depth 4 ft.
Upstream Pond: Length 0 ft.
, Width 0 ft.
, Depth 0 ft.
Riffle Information
Water Depth: 1.2 ft.
Bankfull Width: 10 ft.
Wetted Width: 7.2 ft.
Water Velocity: 1.1 ft./sec.
(Measured with Meter)
Dominant Substrate: Sand
Road Information
Paved
County Road
Road Condition: Good
Road Width at Culvert: 35 ft.
Location of Low Point: At Stream
Runoff Path: Roadway
Embankments
Upstream
Fill Depth: 20 ft.
Slope: 1:1
Downstream
Fill Depth: 20 ft.
Slope: 1:1
Approaches
Left Approach
Length: 1000 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.57
Erosion: 0.6595 tons/year
Right Approach
Length: 750 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.543
Erosion: 0.4708 tons/year
Erosion Information
Total Erosion at Crossing: 1.1303 tons/year
Extent of Erosion: Moderate
Summary Information
Fish Passage is an area of concern for this site.
Yes, high outlet velocities.
A future visit to this site is recommended.
Yes, replace if possible.