Road Stream Crossing Site PM_N014

Pere Marquette River Watershed, Big South Branch Pere Marquette
13 Mile Rd
Troy Twp, Newaygo County
Information collected by:
Site Location
GPS Coordinates: 43.741815 , -85.958351
T16N R14W Sec 35
Owned by Private
Total Erosion: 0.1469 tons/year
Severity: Minor
Year Inventoried: 2014
Upstream Conditions
Downstream Conditions
Road Approach - Left
Road Approach - Right
Crossing Information
Type of Crossing: Bridge
Structure Shape: Open Bottom Square/Rectangle
Inlet Type: Projecting
Outlet Type: At Stream Grade
Structure Material: Concrete
Structure Substrate: Mixture
General Conditions: Good
Structure Interior: smooth
Dimensions of Structure: Length 22 ft. , Width 68 ft. , Height 9 ft.
(with Float Test)
Additional Comments

Approaches were recently repaved. No water measurements were taken-river here is big and deep.

Stream Information
Stream Flow: None
(Measured with Meter)
Dominant Substrate: Organics
Road Information
Paved County Road
Road Condition: Good
Road Width at Culvert: 22 ft.
Location of Low Point: Other
Runoff Path: Ditch
Slope: Vertical
Slope: Vertical
Left Approach
Length: 200 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0.0073 tons/year
Right Approach
Length: 400 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.48
Erosion: 0.1396 tons/year
Erosion Information
Total Erosion at Crossing: 0.1469 tons/year
Extent of Erosion: Moderate
Summary Information
Erosion is an area of concern for this site.