Road Stream Crossing Site BT_B108A
Betsie River Watershed, Cold Creek
Elderidge Rd
Benzonia Twp,
Benzie County
Information collected by:
Site Location
GPS Coordinates: 44.63224
, -86.07885
T26N
R15W
Sec 24
Owned by Private
Fish Passability 0.9
Structure is NOT Perched
Total Erosion: 0.9928 tons/year
Severity: Moderate
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: At Stream Grade
Structure Material: Concrete
Structure Substrate: Sand
General Conditions: Fair
Structure Interior: smooth
Dimensions of Structure: Length 84 ft.
, Width 3.5 ft.
, Height 3.5 ft.
Percentage Crushed:
Inlet: 0%
Outlet: 0%
In Pipe: 1% to 25%
Structure is NOT Perched
Structure Inlet
Water Depth: 0.6 ft.
Embedded Depth of Structure: 0.2 ft.
Water Velocity*: 0.7 ft./sec.
Structure Outlet
Water Depth: 0.4 ft.
Embedded Depth of Structure: 0.5 ft.
Water Velocity*: 0.7 ft./sec.
*Water Velocities were measured 0.4 ft. below Surface
(with Meter)
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: 0.3 ft.
Bankfull Width: 8 ft.
Wetted Width: 3.6 ft.
Water Velocity: 1 ft./sec.
(Measured with Meter)
Dominant Substrate: Gravel
Road Information
Paved
County Road
Road Condition: Good
Road Width at Culvert: 41 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 8.6 ft.
Slope: More than 1:2
Downstream
Fill Depth: 8.6 ft.
Slope: More than 1:2
Approaches
Left Approach
Length: 240 ft.
Slope: 6% to 10%
Vegetation: Heavy
LS Factor: 1.302
Erosion: 0.4235 tons/year
Right Approach
Length: 300 ft.
Slope: 6% to 10%
Vegetation: Heavy
LS Factor: 1.4
Erosion: 0.5693 tons/year
Erosion Information
Total Erosion at Crossing: 0.9928 tons/year
Summary Information
Fish Passability 0.9
A future visit to this site is recommended. Narrow Gauge road currently being re-paved, possibly follow up to check erosion from new roadway/spillways.