C. Limited maintenance and repair activities
(formerly §6.03)
1. Limited repair and
maintenance of an existing structure located in a wetland is allowed under
§
2.6(A) of
this Part as specifically provided below, so long as the repair or maintenance
does not increase the size of the structure vertically or horizontally. Some
limited structural changes also may be exempt, as specifically provided below.
For purposes of this §
2.6(C) of
this Part, repair and maintenance is limited to routine activities necessary to
ensure the upkeep of structures built in accordance with all necessary federal,
state and local permits
a. Exterior and
interior work on a structure necessary to maintain its integrity and condition;
or
b. Replacement of functional
drainage structures provided that:
(1)
Culverts of more than fifty feet (50') are the same type, size, length,
capacity and invert elevation as the present structure;
(2) Culverts of fifty feet (50') or less
maintain the same slope, a nominally equivalent cross-sectional area and the
same invert elevation as the present structure with no more than five foot (5')
extensions in length on either end;
(3) The project does not result in sediment
transport to wetlands or any filling, draining, or impoundment of wetlands
beyond what was approved or existing; and
(4) The property owner maintains site plans
which detail the condition of the drainage structure as it existed prior to
replacement. A riprap scour pad not greater than ten feet (10') in length may
be placed at the culvert outfall if an erosion problem is evident, provided
that the access for fish and wildlife is not impeded; or
c. Normal maintenance of existing or approved
property accessories and lawns; or
d. Cleaning of drainage pipes, culverts,
catch basins and manholes; or
e.
Repaving of, or undertaking normal roadway maintenance of, paved public and
private roadways or bikeways. Normal roadway maintenance includes: resurfacing
and/or in-place recycling of paved surfaces; repairs to, resetting or replacing
curbs, berms, sidewalks or guardrails; addition of guardrails, signing,
striping or signals; adjusting manholes, catch basins or utility structures to
grade; and structural repairs to, or in-place replacement of manholes, catch
basins or grates. Paving or oiling of dirt roads, however, is considered an
alteration which requires a permit; or
f. Repair to or maintenance of a stream
crossing, such as a stone ford and its approach, or any unpaved road which is
used at least on an annual basis, provided that any increase in road surface
cover does not require the expansion of any slopes further into the wetland
beyond the present toe of slope, and any increase in height does not exceed two
(2) inches. Repair or maintenance to any stream crossing and its approach must
be done during low or no flow periods; or
g. Repair of docks and foot bridges located
outside of any area within 200 feet of a coastal shoreline feature. This does
not include enlargements or extensions; or
h. Repair to boat ramps which does not
include enlargements, located outside of any area within 200 feet of a coastal
shoreline feature; or
i. Repair to
any bridge located outside of any area within 200 feet of a coastal shoreline
feature, provided that the repair is undertaken from the deck or roadway, that
no equipment is placed in any watercourse or wetland for the purpose of the
repair, and that any material removed from the structure during repair is
disposed of properly; or
j. Removal
of manmade trash from watercourses and other wetlands without causing any
change in the profile or general character of any watercourse or other
wetlands. Removal must be performed manually, or by equipment when chains or
cables can be attached to the item to be removed and the equipment can be
operated from a road, parking area, or other similar location. Removal of
natural material such as logs, brush, or trees from the watercourses and other
wetlands must be limited to problem locations where lack of removal will result
in erosion or blockage of culverts, obstruction of existing paths, or
prevention of canoeing access; or
k. Repair to or in-kind, in-place replacement
of shoreline stabilization structures, excluding those adjacent to tidal
waters, such as stone and/or masonry walls provided that there is no expansion
of the structure and no material is placed in any location or in any manner
that would impair surface water flow, and no material is placed in a manner
such that it will be eroded by normal or expected high surface water flows;
or
l. Maintenance of soil erosion
and sediment control management practices and stormwater management practices
in accordance with a plan approved by the CRMC; or
m. Maintenance of existing or approved
freshwater bathing beach that does not expand or otherwise change the size or
shape of the beach; or
n.
Inspection, maintenance and repair to those utility poles, structures,
equipment or underground lines or pipes which are necessary to provide utility
services to the public; or
o.
Replacement of utility poles, including changes in physical size, without any
change to existing or approved cleared rights of way; or
p. Repair and replacement of utility lines
attached to existing or approved bridges or in existing or approved roadways
and railway beds provided antiseepage collars are used as appropriate to
prevent subdraining effects on wetlands; or
q. Maintenance by municipalities of surface
water impoundments used for drinking water supplies, provided that all
maintenance activities occur within the existing boundary perimeters of the
impoundment and that the municipality provide the CRMC with twenty (20) days
advance written notice of such maintenance activity; or
r. Repair and replacement of drinking water
wells and its supply lines provided that the following conditions are met:
(1) All cleared vegetation is allowed to
regrow naturally;
(2) The volume of
withdrawal from the replacement well is no greater than 500 gallons per
day;
(3) The repair/replacement
well is for the same use as its predecessor;
(4) The repair/replacement well will service
the same lot as its predecessor;
(5) No other feasible upland alternative is
available; and
(6) All disturbances
to wetlands are limited to the maximum extent possible; or
s. Repair of failed onsite wastewater
treatment system, made in accordance with the DEM "Rules Establishing Minimum
Standards Relating to Location, Design, Construction and Maintenance of Onsite
Wastewater Treatment Systems," 250-RICR- 150-10-6; or
t. In-kind replacement of existing or
approved buildings and constructed property accessories if destroyed by fire or
natural causes.