Portland Land Use Code

Citation: Portland Land Use Code
Parent Document: Portland Land Use Code
Jurisdiction: Portland (municipal)
Original Source: https://www.portlandmaine.gov/asset/a5dcd1dc-4117-40b3-b3da-74a56919e14b ↗

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regeneration occurs within one The amount of exposed ground area at every
growing season, then native tree phase of construction shall be minimized to
seedlings or saplings shall be replanted reduce the potential for erosion.
on a one-for-one basis. D. Any exposed ground area shall be temporarily
or permanently stabilized within one week from
11.4.4 Erosion and sedimentation control the time it was last actively worked, by use of
A. All activities which involve filling, grading, riprap, sod, seed, and mulch, or other effective
excavation or other similar activities which measures. In all cases, permanent stabilization
result in unstabilized soil conditions and which shall occur within nine months of initial
require a permit shall require a written soil exposure. The following standards shall also be
erosion and sedimentation control plan in met:
accordance with Maine Erosion and Sediment 1. Where mulch is used, it shall be applied at
Control Handbook for Construction: Best a rate of at least one bale per 500 square
Management Practices, published by the feet and shall be maintained until a catch
Cumberland County Soil and Water of vegetation is established.
Conservation District and the Maine 2. Anchoring the mulch with netting, peg, and
Department of Environmental Protection and twine or other suitable method may be
the City of Portland Technical Manual. The plan required to maintain the mulch cover.
shall be submitted to the review authority for 3. Additional measures shall be taken where
approval and shall include, where applicable, necessary in order to avoid siltation into
provisions for: the water. Such measures may include the
1. Mulching and revegetation of disturbed use of staked hay bales, and/or silt fences.
soil. E. Natural and man-made drainage ways and
2. Temporary runoff control features such as drainage outlets shall be protected from
hay bales, silt fencing, or diversion ditches. erosion from water flowing through them.
3. Permanent stabilization structures such as Drainage ways shall be designed and
retaining walls or riprap. constructed in accordance with the City of
B. In order to create the least potential for Portland Technical Manual.
erosion, development shall be designed to fit F. When an excavation contractor will perform an
with the topography and soils of the site. Areas activity that requires or results in more than
of steep slopes where high cuts and fills may be one cubic yard of soil disturbance, the person
required shall be avoided wherever possible, responsible for management of erosion and
and natural contours shall be followed as sedimentation control practices at the site
closely as possible. must be certified in erosion control practices
C. Erosion and sedimentation control measures by the Maine Department of Environmental
shall apply to all aspects of the proposed Protection. This person must be present at the
project involving land disturbance and shall be site each day earth-moving activity occurs for a
in operation during all stages of the activity. duration that is sufficient to ensure that proper 11-12 | CITY OF PORTLAND LAND USE CODE SHORELAND OVERLAY ZONE

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