All plans approved for construction which include elevations, distances, material lengths, thicknesses or depths shall be affirmed through submission of an as-built (or as-constructed) plan as part of the final plan approval process. The as-built plan shall accurately depict the final constructed development indicating which improvements have been installed in accord with the approved plans and detailing any changes as approved by the Township.
A. Submission. One legible paper print of the as-built plans and one compact disc with the plans in PDF format shall simultaneously be submitted to the Township and one of each to the Township Engineer.
B. Format.
(1) The as-built plans shall be generated using the approved plans (as revised through construction) with the plan/design figures struck through with a single line and the as-constructed measurement annotated immediately adjacent.
(2) All deviations from approved plan data shall be documented by field measurement by a registered land surveyor, licensed in good standing to practice surveying in the Commonwealth of Pennsylvania.
C. Water and sewer. Water and sewer as-built plans shall be coordinated with the respective authorities.
D. Plan information. The following information shall be shown on the as-built plans. Deviations from the approved plans shall be subject to a request from the Township Engineer for calculations sealed by the applicable qualified professional which document that the as-constructed condition does not violate the original intent by decreasing flow capacity or a safety standard below the criteria set by this chapter.
(1) Storm sewer, including revised topography for basin/BMPs (if needed), basin/BMP berm height and width, outlet structure elevations, emergency spillway elevation and length, basin/BMP volume calculations, storm pipes and inlets (including pipe size, slope, inverts, grate elevations), and location of all BMPs, including snouts, bottomless inlets, depressed landscape islands, infiltration trenches, porous pavement, etc.
(2) Deviations in grade on gravity-dependent improvements (e.g., ditches and pipes) to verify that the installed flow capacity meets or exceeds the design capacity.
(6) Road elevations, layout, and striping; and if intersections have been revised significantly, sight distance. Finished roadway improvements shall be measured at cross-section intervals matching the design stations, and shall include information across the entire improved section from tie slope to tie slope in order to document that the design ditch, shoulder and roadway sections have been met.
(7) Parking spaces including handicapped spaces and access points.
(8) Retaining wall locations and elevations.
(9) Where permanent monuments have been set for right-of-way or tract boundary, the four-decimal state plane coordinates and two-decimal elevation of the center of the monument.
(10) Building locations with tie distances to property lines.
(11) Any improvement where setbacks from property lines to critical points (building corners, etc.) have been shown on the approved plans.
(12) Utility location in association with easements (i.e., is the utility centered on the easement, etc.).
(13) Field changes not otherwise required by this section.
(14) Cross-section plots for any or all stations of the project may be required, at the discretion of the Engineer.
(15) Other information as deemed necessary by the Township Engineer, depending on site conditions.