Road Stream Crossing Site CLHW_GCNC-003
Grass Creek-Norwegian Creek Watershed, Unnamed stream
North Point Rd
Alpena,
Alpena County
Information collected by:
Site Location
GPS Coordinates: 45.09638
, -83.33106
T31N
R9E
Sec 9
Owned by Private
Perch Height: 0.4 ft.
Total Erosion: 0.3015 tons/year
Severity: Minor
Year Inventoried: 2016
Site ID
Inlet
Outlet
Upstream Conditions
Downstream Conditions
Road Approach - Left
Road Approach - Right
Crossing Information
Type of Crossing: culvert(s)
Number of Structures: 2
Structure Shape: Round
Inlet Type: Projecting
Outlet Type: Freefall into Pool
Structure Material: Metal
Structure Substrate: None
General Conditions: Poor
Multiple Culverts/Spans | ||||
Culvert/Span | Width | Length | Height | Material |
1 |
2 ft. |
32 ft. |
2 ft. |
Metal |
2 |
2 ft. |
32 ft. |
2 ft. |
Metal |
Structure Interior: corrugated
Structure is Rusted through
Dimensions of Structure: Length 32 ft.
, Width 2 ft.
, Height 2 ft.
Percentage Crushed:
Inlet: 1% to 25%
Outlet: 0%
In Pipe: 1% to 25%
Perch Height: 0.4 ft.
Water Depth: 0 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0 ft./sec.
Water Depth: 0 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0 ft./sec.
Stream Information
Stream Flow: None
Road Information
Paved
County Road
Road Condition: Good
Road Width at Culvert: 16 ft.
Location of Low Point: Other
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 0.6 ft.
Slope: More than 1:2
Downstream
Fill Depth: 0.7 ft.
Slope: More than 1:2
Approaches
Left Approach
Length: 1000 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.57
Erosion: 0.3015 tons/year
Right Approach
Length: 0 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0 tons/year
Erosion Information
Total Erosion at Crossing: 0.3015 tons/year
Summary Information