Road Stream Crossing Site BT_B109

Betsie River Watershed, Cold Creek
Eastman Rd
Benzonia Twp, Benzie County
Information collected by:
GPS Coordinates: 44.63197 , -86.07007
T26N R15W Sec 25
Owned by Private
Fish Passability 0.9
Structure is NOT Perched
Total Erosion: 0.5871 tons/year
Severity: Moderate
Year Inventoried: 2014
Site Location
Upstream Conditions
Downstream Conditions
Road Approach - Left
Road Approach - Right
Crossing Information
Type of Crossing: culvert(s)
Number of Culverts: 1
Structure Shape: Round
Inlet Type: Projecting
Outlet Type: At Stream Grade
Structure Material: Concrete
Structure Substrate: Mixture
General Conditions: Poor
Structure Interior: smooth
Dimensions of Structure: Length 46 ft. , Width 2 ft. , Height 2 ft.
Percentage Plugged: Inlet: 76% to 100% Outlet: 0% In Pipe: 0%
Structure is NOT Perched
Structure Inlet
Water Depth: 0.4 ft.
Embedded Depth of Structure: 1.6 ft.
Water Velocity*: 1 ft./sec.
Structure Outlet
Water Depth: 0.6 ft.
Embedded Depth of Structure: 1.4 ft.
Water Velocity*: 0.6 ft./sec.
*Water Velocities were measured at the Surface (with Meter)
Stream Information
Stream Flow: Less than Bankfull
Scour Pool: Length 14.7 ft. , Width 13.3 ft. , Depth 0.4 ft.
Upstream Pond: Length 25.6 ft. , Width 12 ft. , Depth 0.3 ft.
Riffle Information
Water Depth: 0.3 ft.
Bankfull Width: 6 ft.
Wetted Width: 3 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: 23 ft.
Location of Low Point: At Stream
Runoff Path: Roadway
Fill Depth: 4.2 ft.
Slope: More than 1:2
Fill Depth: 3.6 ft.
Slope: More than 1:2
Left Approach
Length: 150 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.4
Erosion: 0.0456 tons/year
Right Approach
Length: 450 ft.
Slope: 6% to 10%
Vegetation: Heavy
LS Factor: 1.583
Erosion: 0.5415 tons/year
Erosion Information
Total Erosion at Crossing: 0.5871 tons/year
Summary Information
Fish Passability 0.9
Fish Passage is an area of concern for this site. Yes, fish passage/very aged culvert in poor condition.
A future visit to this site is recommended. Yes, possibly remove old pipe and install new pipe in correct manner.