§ 70-514.4. Engineering plan specifications.
(a)
Every engineering plan shall be either 17 by 22 inches or 24 by 36 inches in size and at a scale of not smaller than 50 feet to the inch (1" = 50'), except in cases where the agent has approved an alternate scale.
(b)
Prior to final approval by the county, engineering plans shall be signed by the owner of the land proposed for subdivision. The signature shall certify that the owner is aware of the design requirements imposed by the plan and other applicable county or state codes, and shall further certify that the owner agrees to comply with these requirements, unless modified in accordance with the County Code.
(c)
The engineering plan shall include the following:
(1)
General information:
a.
Name of subdivision.
b.
True, record, or grid north (identified as such).
c.
Scale of drawing.
d.
Number of sheets.
e.
Name and address of person and firm preparing the plan.
f.
Approval block providing for signature and date.
g.
Vicinity map indicating adjoining roads and road names, and at a scale not smaller than 1" = 2,000'.
h.
Date drawing prepared, and revision dates.
(2)
General notes:
a.
Name and address of owner and developer.
b.
Address and tax map number of property to be subdivided.
c.
Zoning district.
d.
Number of lots.
e.
Total acreage of subdivision.
f.
Means of providing potable water and sewage disposal to each lot.
(3)
Street information:
a.
Plan and profile of all streets.
b.
Vertical and horizontal curve data for all streets.
c.
Sight distances.
d.
Typical section of all streets including pavement structure proposed and typical grading.
e.
Traffic projections and analysis where necessary to estimate warrants for signalization, turn lanes, and other related features.
f.
VDOT road classification, speed limit and access road geometric standards.
g.
Other information as determined by VDOT.
(4)
Stormwater management information:
a.
Engineering calculations establishing pre- and post-development runoff for the subdivision.
b.
Detention facility calculations establishing the adequacy of proposed measures and downstream channels.
c.
Erosion and sediment control plan and narrative.
d.
Plan and profile and grading of a typical section of any proposed detention facilities.
(5)
Drainage information:
a.
Plan and profile of all proposed stormwater collection drain pipes and channels identifying all inlets, specifying material type and size, with design of invert and top elevation.
b.
All existing and proposed drainage easements.
c.
Watercourses, springs and other natural drainage features.
(6)
Public water supply information (if applicable):
a.
Plan and profile, including material, size, cover and utility crossings, of existing and proposed water mains.
b.
Existing and proposed hydrants, valves and other associated features.
c.
Existing and proposed service laterals and meter locations.
d.
Existing and proposed easements.
e.
Fire flow and water pressure calculations.
(7)
Public sanitary sewer information (if applicable):
a.
Plan and profile, including material, size, cover, grade, structures, invert, top elevation and utility crossings.
b.
Existing and proposed service laterals and clean out locations.
c.
Existing and proposed easements.
d.
Downstream sewer capacity analysis.
e.
Lowest floor elevation sewerable by gravity on each lot.
(8)
Landscaping plan and management program.
(9)
Street lighting plan.
(10)
Other information:
a.
Information, details or design as necessary to demonstrate or achieve compliance with the standards of this ordinance.
b.
Existing and proposed topographic lines at two-inch intervals.
c.
Notation of requirement of pump-out of on-site sewage treatment systems in Chesapeake Bay Preservation Areas every five years.
d.
Notation of requirement for 100% reserve drainfield site for on-site sewage treatment systems in Chesapeake Bay Preservation Areas.
e.
Notation of requirement for retention of an undisturbed and vegetated 100-foot wide buffer area in the Resource Protection Area.
f.
Notation of the permissibility of only water dependent facilities or redevelopment in the Resource Protection Area.
(Ord. No. 0-09-02, 1-27-2009; Ord. No. O-18-03, § 1, 1-23-2018; Ord. No. O-18-10, § 1, 5-22-2018)
(Ord. No. 0-09-02, 1-27-2009; Ord. No. O-18-03, § 1, 1-23-2018; Ord. No. O-18-10, § 1, 5-22-2018)