1122 75TH ST SW 2018-01-02 MF Import

Plow control structures frestrictor cb�s1• Both flow control structures must be accessible for maintenance. The pond control structure should either be located closer to 75th, or a 15� wide all weather surface access road constructed to the control structure. At a minimum, an access hatch must be located over the .� restrlctor assembly in the detention vault so that the assembly is visfble from the surface. The invert elevation of the pond outlet de�ail does not match that given on the plans. oil/water seuarator• The inlet and outlet elevations of the vault and the , elevation of the bottom of the vault should be given on the detail. In addition, unless the specific manufacturer and vault name is given, the position, spacing, and height of interior baffles should be clearly shown on the vault detail. Utility vault 5106 series extensions were called out on the oil/water separator detail, but the 5106 vault was not... The oil/water separator maintenance notes from section 4.11.1 of the City of Everett Design and Construction Standards and Specifications must be included on the plans. The overflow pipe should be equipped with a floatable material separator, per City std. �430, that extends a minimum of 6° below the invert elevation of the pipe to the separator. P1b3na;- On storm drains with depths to the flow line exceeding 5.5 feet, the following structures must be used: Catch Basin Type II (standard plan #404) - maximum i e s.tze of 21" p p Manhole Type I- 48" (standard plan B605A) - maximum hole size of 36" Manhule Type Z- 54" (standard plan �605A) - maximum hole size of 42" City standards call for all manholes and type II catch basins to be equipped with ladders per standard plan ,�606.