Road Stream Crossing Site EUP_42N2W16_003
Les Cheneaux Islands Watershed, Nunns Creek
M 134
Mackinac County
Information collected by:
HNF USFS
Site Location
GPS Coordinates: 46.032704063,-84.562335677
T 042NN R 002W Sec 16
Fish Passability: Barrier at Most Flows
Structure is NOT Perched
Overall Score: 15
Severity: Moderate
Date Inventoried: 8/19/2018
Crossing Information*
Type of Crossing: Bridge
Structure Shape: Open Bottom Square/Rectangle
Inlet Type: Apron
Structure Material: Concrete
General Conditions: Major deterioration from corrosion or abrasion (5-10% of the structure is rusted through) or cracking or spalling or chipping (medium sized cracks, widespread chipping, exposed metal reinforcement). OR Major shape changes (described above) reducing the capacity of the structure by less than 30%. OR segment disconnection (segments of concrete or metal culvert disconnecting internally) but no evidence of water piping.
Is Structure Rusted through? No
Dimensions of Structure: Length 48.5 ft. Width 32 ft. Height 9 ft.
Percentage Plugged: None or 0%
Percentage Crushed: None or 0%
Structure is NOT Perched
Stream Information
Stream Flow: < Bankfull – The stream channel is more than half filled with water, but is not full.
Riffle Information
Road Information
Road Surface: Paved
Owner: State
Road Condition: New Pavement or Well Graded, Same condition as initial placement.
Road Width at Culvert: 23 ft.
Location of Low Point: At Stream
Runoff Path: Roadway
Approaches
Left Approach
Length: 800 ft.
Slope: 1-5%
Vegetation: Heavy, Ditch is fully vegetated or rip-rapped with no signs of erosion.
Right Approach
Length: 800 ft.
Slope: 1-5%
Vegetation: Heavy, Ditch is fully vegetated or rip-rapped with no signs of erosion.
Erosion Information
Summary Information
Fish Passability: Barrier at Most Flows
Were any non-native species observerd at this site? Yes, Spotted knapweed.
Site Comments: Bridge in good condition.River too wide for widths.
*These data are maintained in the Michigan DNR Road Stream Crossing Inventory.