Project Details
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Permit Application Assistance Manual
Project Description
Provide a narrative statement that gives a detailed summary of the project. The project description should include the overall scope of the project, a description of each major component including but not limited to the type of materials, dimensions, if the component is new or existing, and any temporary structure that will be used. If more space is needed, use a separate page and submit with the permit application form.
Example Project Descriptions
The project descriptions and plans shown below are provided as examples of the type of information that the DNR will need in order to review a permit application. They should not be considered an endorsement or recommendation of any particular design.
Flood Control Act Permit Application
Bank Stabilization
Approximately 250' of the streambank will be stabilized with riprap placed over a geotextile fabric to protect the bank from further erosion. The riprap will have a maximum height of 5’, a maximum streamward projection of 2’ beyond the existing bank, and 1:1 sideslopes. The riprap will be keyed into the streambank at its base and will conform to the existing bank at the project limits.
Boat Ramp Flood Control Act
A new 50-foot-long by 15-foot-wide boat ramp will be constructed to connect an existing gravel parking lot to the river. The boat ramp will be 1 foot thick and consist of a 6-inch concrete slab on top of a 6-inch base of compacted aggregate. Approximately 50 square feet of the bank will be excavated, and 50 square feet will be filled with the new boat ramp. The boat ramp will extend 5 feet in depth, from the top of the bank and down to the river. It will extend 40 feet landward of the bank, and 10 feet streamward of the bank.
Excavation
A 50 foot x 40 foot pond will be excavated. The pond will have 3:1 sideslopes and will be a maximum depth of 6 feet below existing grade. The pond will be 50 feet wide and be tapered to 20 feet at the bottom. Approximately 310 cubic yards will be excavated. The excavated material will be removed from the floodplain and taken to a nearby farm at 321 River Road.
Fill
A 200’ x 100’ area will be filled for the development of a parking lot. The fill will vary in depth from 6” on the landward side to approximately 12” on the streamward side. The fill will be set 140’ back from the top of the bank and will have 3:1 sideslopes. The parking lot will be constructed on top of the compacted fill.
Open-Sided Shelter
A new 45-foot-long by 20-foot-wide by 18-foot-high open-frame carport will be installed at existing grade. The frame will be made of metal and wood and be anchored using 3-foot-long mobile home anchors.
Outfall
A new stormwater outfall structure and pipe will be placed along the bank to provide drainage. A 3 foot x 5 foot concrete box outfall pipe will be constructed along the south bank of the stream. The pipe will be 48 inches in diameter and 50 feet long. The outfall structure will conform to the existing bank.
Bridge
A new 15-foot-wide by 20-foot-long bridge will be constructed. The bridge will completely span the streambank with no piers or other supports placed in the channel. A 3-foot-wide shelf consisting of riprap and compacted aggregates will be constructed below the bridge on the eastern bank to provide wildlife passage. A portion of the eastern bank will be excavated and regraded to accommodate the wildlife path; excavated material will be removed from the floodway.
Fence
A new fence will be constructed behind the existing residence. A 130-foot section of 6-foot-tall chain link fencing will be constructed parallel to the stream within the floodway. Two sections of breakaway fencing will be constructed perpendicular to stream flow, measuring 35 feet for the northern section and 50 feet for the southern section.
Non-residential Structure
A new 25-foot by 25-foot storage building will be constructed in the floodway. The building will be elevated on cinderblock walls to the Flood Protection Grade of 822’ NAVD88. Seven 10-inch by 10-inch openings will be left in the walls to allow the automatic entry and exit of floodwaters. The structure will be anchored to prevent flotation or displacement during a flood, and all utility equipment will be placed above FPG. No trees will be removed.
Residential Reconstruction
A substantially damaged residence will be completely removed and reconstructed within the floodway. The reconstructed home will be built on the same 40-foot by 40-foot footprint of the existing damaged residence. The reconstructed home will be elevated on cinderblock walls to the Flood Protection Grade of 826’ NAVD88. Eight 10-inch by 20-inch openings will be left in the walls to allow the automatic entry and exit of floodwaters. The structure will be anchored to prevent floatation or displacement during a flood and all utility equipment will be located above the FPG. No trees will be removed.
Lake Preservation Act Permit Application
Boat Ramp
A new 30-foot-long by 10-foot-wide boat ramp will be constructed to connect an existing driveway to the lake. The boat ramp will be 1 foot in depth and consist of a 6-inch concrete slab on top of a 6-inch base of compacted aggregate. Approximately 11 cubic yards will be filled with the new boat ramp. The boat ramp will extend 3 feet in depth, from the top of the bank and down to the shoreline. It will extend 20 feet landward of the bank and 10 feet lakeward of the shoreline.
Boat Well Construction
A new 20-foot by 30-foot boat well will be constructed. It will be 3 feet deep, 20 feet wide, and will extend 30 feet landward of the lake's legal shoreline. A new concrete seawall will be constructed along the sides of the boat well, for a total of 80 feet. It will connect to the existing concrete seawall on either side.
Boat Well Fill
An existing 30-foot by 15-foot boat well will be filled with clean, washed gravel and a new 15- foot concrete seawall will be constructed to close the space on the lakeward side. The seawall will connect to the existing concrete seawalls on both sides of the boat well and be 4 feet high. The lakeward face of the new seawall will be located along the lake's legal shoreline.
Dredging
An approximately 300-foot-long and 20-foot-wide channel will be dredged by mechanical excavation. The existing water depth is 3 feet, and 3 feet of accumulated sediment will be dredged to result in a finished channel depth of 6 feet. Approximately 55 cubic yards will be excavated and taken to an upland site for draining and disposal.
Group Pier
A group pier will be installed in _____ Lake and extend 100 feet lakeward of the legal shoreline. The eastern extent of the group pier will be 15 feet west of the eastern riparian boundary line, and the pier will extend westward for a total width of 125 feet along the applicant’s approximately 250-foot shoreline. The western extent of the group pier will be 110 feet east of the western riparian boundary line. The main stem of the group pier will be 5 feet wide, and two pier segments extending 60 feet parallel to the shoreline will be installed on either side of the main pier at the lakeward extent. Each of these segments will have four piers that are 5 feet wide and 20 feet long, each placed to provide eight boat docking areas that are each 30 feet wide. These segments will be 45 feet long at the eastern and western sides of the pier. The group pier will be supported by 3-inch diameter auger poles.
Seawall
A new seawall will be constructed along approximately 120’ of the shoreline. The wall will be composed of 2 to 12” diameter glacial stone. The lakeward face of the seawall will be at the lake's legal shoreline.
Underwater Beach
A new underwater beach will be constructed consisting of a 4 to 6” thick layer of clean, washed pea gravel placed directly on the lakebed. The beach will begin approximately 40 ‘ east of the western property line and will extend easterly across 30’ of the 100’ of frontage. It will have a maximum lakeward projection of 25’.
Other Related Information
Provide the file numbers of any related permit application or files from DNR or other federal, state, or local agencies that are related to the project.