1. General.
A. The following requirements listed within 1. thru 6. shall be considered minimum standards. Additional detail and information may be required by the Township depending on the specific project.
B. All individual sheets of as-built plans shall be signed and sealed by the responsible licensed Land Surveyor.
C. Storm sewer, sanitary sewer, and utility as-built information shall all be included on same plan and profile views. Independent plan sets for each shall not be permitted unless specifically requested by the Township.
D. Proof set of plans shall be submitted to the Township for review of completeness prior to preparation of final drawings. “Proof plan” shall be titled as such. Final drawings shall consist of two (2) sets of reproducible mylars and two (2) sets of paper prints of all plan sheets; and copy of plans in a digital format acceptable to the Township.
E. Final as-built plan set shall include a reproducible mylar sheet of the detention basin as-built.
F. As-built plans shall be prepared on standard 24" x 36" plan sheets at a scale of 1" = 50' or at the design plan scale (whichever is larger).
G. All plan sheets shall include a standard Act 38 notification requirement for location of underground utilities prior to excavation.
2. Stormwater Management Basins.
Stormwater Management as-built plan shall include but not be limited to the following:
(1) Contours at 1 foot intervals.
(2) Spot elevations on the top of berm along interior and exterior edges at 25 feet intervals.
(3) Spot elevations on the top of berm and spillway crest at all four corners of the spillway; and spot elevations centrally on interior and exterior edge of the spillway.
(4) Stage/storage calculations must be included on the plan.
(5) Size, type, length, inverts and slope of outfall pipe.
(6) Top of structure elevation and all associated inverts/sizes of weirs and orifices on same.
(7) Inverts of all storm sewer pipes discharging into the basin.
(8) As-built information on constructed swales which discharge into the basin shall be furnished upon request, as required by the Township.
3. Storm Sewer.
A. Drafting Standards.
(1) Plan shall be prepared utilizing standard plan and profile paper.
(2) Horizontal scale must be 1" = 50' and vertical scale must be 1" = 5', or at design plan scales (if larger).
(3) Plan view:
a. Plan view shall delineate all right-of-way and easement boundaries and all property corners that intersect same.
b. Centerline stationing shall be included along all streets.
c. All roadways, curbing and sidewalk shall be shown and dimensioned.
d. All lot numbers shall be labeled.
B. Storm sewer as-built information shall include but not be limited to the following:
(1) Grate and manhole rim elevations.
(2) Pipe sizes, types, lengths and slopes.
(3) Inverts of all inlets, manholes and endwalls.
(4) Types of endwalls shall be identified (e.g. “FES”, “DW”, “D”, etc.)
(5) Location of all sump pump/roof drain tie-ins.
(6) Invert of storm sewer at sanitary sewer and utility crossings.
4. Sanitary Sewer.
A. As-built information shall be prepared in accordance with prevailing standards and requirements of the applicable Authority.
B. At a minimum, Township as-built drawings shall include the following on plan and profile views: location, size, and type of sewer mains, manholes, laterals, etc.
5. Water System.
A. As-built information shall be prepared in accordance with prevailing standards and requirements of the Springtown Water Authority.
B. At a minimum, Township as-built drawings shall include the following on plan and profile views: location, size, and type of water mains, fire hydrants, water valve boxes, laterals, tees, bends, etc.
6. Streets as-built information shall include, but not be limited to the following:
A. Centerline spot elevations at a minimum of every 50 feet.
B. Spot elevations (bottom of curb or edge of pave) at ¼ points around cul-de-sac turnarounds.
C. Centerline geometry.
D. Centerline stationing.
E. The above information may be included on utility plan and profile sheets if it is clearly legible.
F. Typical street crossection drawing.
G. Approximate location of underdrain.
7. Miscellaneous.
A. Location of all conduit crossings for underground utilities through easements and right-of-way must be shown.
B. Set of design plans for gas and electric service installation shall be submitted to the Township with as-built plans. Design plans shall be used for general reference only and shall not be referred to for purpose of as-built information.
C. As-built plan of off street swales may be required when deemed necessary by the Township Engineer.
(Ord. 191, passed 1-8-2019)