Road Stream Crossing Site EUP_Spile dam bridge
Waishkey River Watershed, Unknown
Spile Dam Rd
Chippewa County
Information collected by:
MiDNR
Site Location
GPS Coordinates: 46.316921572893,-84.6297221344565
T 045N R 003 Sec 12
Fish Passability: Barrier
Perch Height: 1 ft.
Total Erosion: 0 tons/year
Overall Score: 44
Severity: Severe
Date Inventoried: 10/7/2021
Road Approach - Left
Road Approach - Right
Inlet
Upstream Conditions
Outlet
Downstream Conditions
Other
Other
Other
Site Sketch
Crossing Information*
Type of Crossing: Bridge
Number of Structures: 1
Structure Shape: Other
Structure Material: Wood
Structure Substrate: Mixture
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.
Structure Interior: Other
Is Structure Rusted through? No
Dimensions of Structure: Length 19 ft. Width 18 ft. Height 1 ft.
Percentage Plugged: None or 0%
Percentage Crushed: None or 0%
Perch Height: 1 ft.
Structure Inlet
Water Depth: 2 ft.
Structure Outlet
Water Depth: 1.5 ft.
Water Velocity*: 0 ft./sec.
*Water Velocities were measured at the surface (via Float Test).
Stream Information
Stream Flow: = Bankfull – Water has completely filled the stream channel, but is not flowing onto the floodplain.
Stream Flow Type: Concentrated Wetland Flow.
Is Scour Pool Present? No
Is Upstream Ponding Present? Yes
Pond: Length 238 ft., Width 315 ft.
Riffle Information
Water Depth: 2 ft.
Bankfull Width: 30 ft.
Wetted Width: 3 ft.
Dominant Substrate: Organics – decomposing plant material
Road Information
Road Surface: Grass/Vegetated
Owner: State
Road Condition: Broken Pavement or Rilled/Gullied, Multiple patches, cracks, rilling, or gullies at crossing.
Road Core Integrity: Poor (one or more symptoms are present and are compromising the integrity of the crossing)
Road Width at Culvert: 12 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 1 ft.
Slope: Steep, 1:1, 45°, or 100%
Downstream
Fill Depth: 1 ft.
Slope: Steep, 1:1, 45°, or 100%
Approaches
Left Approach
Length: 15 ft.
Slope: 1-5%
Vegetation: Partial, Ditch has some vegetation and some bare, eroding places.
Erosion Estimate: 0 tons/year
Right Approach
Length: 25 ft.
Slope: 1-5%
Vegetation: Partial, Ditch has some vegetation and some bare, eroding places.
Erosion Estimate: 0 tons/year
Erosion Information
Estimate of Total Erosion at Crossing: 0 tons/year
Summary Information
Fish Passability: Barrier
Is a future visit to this site recommended? Yes, Bridge replacement
Not critical at this time but in the near future
.
Were any non-native species observerd at this site? No
Site Comments: Beaver dam
*These data are maintained in the Michigan DNR Road Stream Crossing Inventory.