(a) Generally.
(1) After approval of the preliminary plat layout, three sets of
and drainage plans, covering all streets within the plat or condominium,
be submitted to the city for approval. These plans must show plan and profile, typical cross-sections and special details and shall be accompanied by a plat layout on the title or first sheet. This implies a workmanlike execution of the
plans in every respect. The plans and special details must be complete to the extent that they can be used as construction plans and must bear the seal of a registered engineer licensed in the
. Suggested cross-sections can be found in § 1226.11.
(2) Separate enlarged details showing unusual installations and situations must be included. These details should include, but are not limited to, pipe arches, acceleration/deceleration lanes and widened intersections or other areas of construction which cannot be clearly shown and understood from the conventional plan and profile.
(b) Street plans; information required. The plans must show plainly all of the following information:
(1) A plan view with the centerline or top of the curb profile directly below the plan view;
(2) The proposed grades taken from datum determined from a permanent benchmark, the location of which
be shown on the plans; and
(3) All pertinent design and construction information necessary to construct and inspect the improvements.
(c) Drainage plans; information required. The plans must show plainly at least all of the following information:
(1) The location, size and depth of all underground structures used for
drainage within the plat or condominium. The drainage plans
be incorporated as a part of the
plans if this can be done without sacrificing clarity. A composite layout of the sewers and other drainage structures must be shown on the overall
system submitted as a part of the plans. A schematic drawing of this layout will suffice. Drainage plans should be approved by both the
Drain Commissioner (if he or she shares jurisdiction in these facilities with the city) and the city. Road plans should be approved by the
Road Commission (if it shares jurisdiction in the facilities with the city) and the city. In case of differences in standards between these two organizations, the higher standard
prevail.
(2) Sizes, lengths and locations of all cross culverts and/or storm sewers existing or proposed within the
limits and adjacent to the developed area which are to be used to drain the area and adjoining lands;
(3) The location and type of inlets and clean-out points for underground drainage systems; and
(4) The MDOT detail number or reference to the standard plan number for all catchbasins, inlets, manholes and similar structures.
(Res. passed 11-12-1986)