HomeMy WebLinkAboutWPO201900034 Checklist 2019-05-31 (3)Albemarle County Engineering
Mitigation Plan checklist for plan reviewers
Updated 2 Dec 2014
A mitigation plan is a document required by County Code Chapter 17, the Water Protection Ordinance
which illustrates stream buffer disturbance and the measures proposed to alleviate or compensate for it.
Reference key;
[Square Brackets] are County Code references, {Curved Brackets} are policy references, and (regular
parenthesis) are explanatory. Links to reference documents are provided where possible.
Title information: (applicable to any type of plan)
X Project title. Titles should be appropriate. It should be a mitigation plan, not a
stormwater plan, or erosion control plan, etc.
X Professional seal, with original signature and date for professionally prepared plans
Content:
Mitigation Plan (per the Water Protection Ordinance [17-406])
Existing conditions plan view information: (applicable to any type of plan)
X existing topography (as shown on other final plans in process if applicable)
X WPO buffer limits; 100' from stream or wetland bank, 200' from reservoirs, or
floodplain limit if greater [ 17-600]
N/A floodplain limits, including 100yr flood limits for any channel with a drainage area of
50+ acres [18-32.6.2d, 18-30.3]
X all existing easements (access, drainage, sight, sanitary easements, etc.) with deed book
references, locations and dimensions [ 18-32.6.2]
X all critical slopes (typically shaded) [ 18-32.5.2]
Proposed plan view information: (applicable to final site plans, road and drainage plans)
X proposed topography (as shown on other final plans in process if applicable)
N/A all proposed permanent easements, dimensioned and labeled. On a mitigation plans these
would typically be;
conservation easements
any permanent easements proposed on other final plans (such as sewer easements
which cannot have plantings)
Disturbances:
X outlined and/or shaded areas of buffer disturbance, with acreages labeled, matching the
disturbances shown on the erosion control plan and other final plans if applicable.
X disturbances are minimized as much as possible [17-406A2]
Mitigation:
X outlined and/or shaded areas of mitigation, with acreage labeled
X for plantings, mitigation area is equal to double (2x) the disturbed area
N/A for channel restoration, 1' of restored channel for every 100sf of disturbed buffer.
stations at every 50' min. with existing and proposed cross -sections provided for
restoration
X planting plan for mitigation areas per Riparian Buffers Guidance Manual by CBLAD
X detail provided for typical spacing (i.e. 20'x20' detail with placement).
Albemarle County
Engineering Mitigation Plan Checklist
Page 2 of 2
X native plants used with species, size, planting condition condition specified
See the county's native plant database (h!W://www.albemarle.ora/nativeplants/ )
X maintenance narrative and schedule on plan, including a completion date.
X areas restored or replanted for mitigation must be protected in easements or by
maintenance agreements if they are not in a buffer. (This is a rarity, as all planting should be
buffer restoration or reclamation. Noted exceptions are TJSWCD easement areas.)
X all concentrated discharges treated or extended to adequate channels to preserve buffers.