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Dog River Wave Fence

Created by Scott Douglass on Jan 08, 2015  
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General
Mobile , AL
United States
30° 35' 45.3768" N, 88° 6' 46.9224" W
Alabama US
Pre-Project Conditions
Bank elevation above MHW: 
1.0 foot
Pre-Construction Erosion Present?: 
No
Pre-Construction Erosion at Adjacent Parcels?: 
Do Not Know
Existing Structures or Debris?: 
Yes
Describe Existing Structures or Debris at the Site: 
Masonry/stone bulkhead
Environmental Considerations
Name of Waterbody: 
Dog River
Site Classification: 
Other
Other Site Classification Description: 
River/channel
Maximum Exposed Fetch Distance: 
1.00 miles
Shoreline orientation relative to max. fetch distance: 
45 Degrees
Tidal Range: 
1.2 feet
Adjacent to Navigation Channel?: 
No
Boat wake exposure: 
Medium
Project Site Within a Designated No-Wake Zone?: 
No
Salinity: 
Freshwater: 0 – 0.5 ppt
Description of Nearby Structures: 
Adjacent timber bulkhead (south) and concrete bulkhead (north).
Design Considerations
Was fill brought in?: 
Yes
Type of Fill: 
Sand
Amount of Fill: 
50 cubic yards
Proposed nearshore slope: 
1:20.0
Area of shallow bottom conversion to marsh: 
1,100 sq ft
Area of upland conversion to marsh: 
1 square feet
Length of Project: 
55 feet
Average Project Width: 
20 feet
Width of Wetlands Above MHW: 
0 feet
Width of Wetlands Below MHW: 
20 feet
Structural Elements
Did the project involve a structure?: 
Yes
Type of Structure: 
breakwater
Describe construction materials: 
Timber wave fence with 2x6 vertical slats
Average distance of structure offshore (from existing MHW/NHW): 
20 feet
Length of Structure: 
55 feet
Structure Monolithic or Layered: 
Monolithic
Height of Structure Above MHW: 
0.0 feet
Maximum depth at seaward edge of structure: 
3.0 feet
Porosity of structure (for vertical structures only): 
7%
Non-Structural Elements
Percentage of vegetative cover between structure and MHW line: 
100%
Was erosion fabric used for soil stabilization?: 
No
Primary Wetland species below MHW: 
Juncus roemerianus (black needlerush)
Root mat developed by vegetation?: 
No
Cross-section width of planted area: 
20 feet
Project Performance
Overall performance of Living Shoreline for erosion protection?: 
High
Storm Exposure: 
Do Not Know

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