3703 RAILWAY AVE KIMBERLY CLARK 2018-01-01 MF Import

O5/29/02 10:18 FA% wn� bisrrx�rrriox 5-7.3 GItADE AND ALTGNMENT �oae Prior to any pavement cutting or removal, or excavaaon for pipe laying, the conu�actor shall verii'y, in the presence of the engineer, the locations and establish the depth of the existing water mains at the poiau where connections are to be made. The contractor shall verify the dimensions, type, and condidon of the existing water main. The profile sball be adjusced so neither a high spot nor a low spot is created aAjacent to the connecuo�i to the existing water mains. Th_ m;n;,r,um cover for water mains 12 inches in diameter or smaller shall be 36 inches to the top of pipe. The m;n;mum co�•er for water mains over 12 inches in diameter shall be 48 inches to the top of r�ipe. The maxi�mum depth shall not be greater than 60 inches to the top of pipe. All depths both minimum and maximum shall be from finish grades and shall be adhered to unless approved by TJtilities in wri�ing. The water line and hydrants sLall be iasialled by line and grade informadon as supplied by a survey. 5-7.4 TR�NCH EXCAVATION 5-7.4(i) GENERAL The contractor shall perb�rm all excavauon of every description and of whatever materials encountered. All excavations shall be naade by open cut unless otherwise provided for. T'he boRom of trenches shall be accurately graded to provide uniform bearing and support for each ]ength of pipe on undisturbed or ccmpacted soil at every point along its entire length, except at the joints. IIell holes shall be excavated to the extent necessary to I_emut accurate work in making and iaspecting the joints. The banks of the trenches shal] be kep[ as ne:uly vertical as soil conditions anll permit. Where determined necessary by tLe engineer to control uench u idth, to protect adjacent structures, or to provide safe working condirions, ihe trench shall be properly sheeted and braced. See Seedon 3-9 of these Specifications for addidonal informarion on uench excavation. 5-7.4(2) TRENCH WIDTHS The min;mum and maximum crenc6 widths for water main installauon shall be as follows: Nominal PiDe Diameter 2 3 4 6 8 12 16 18 20 24 30 36 42 48 54 ' 60 • TRENCH WIDTHS(InTnchr-s) Minimum Earth 18 18 18 21 24 28 30 31 33 36 40 47 54 61 6S 75 STANOARD9 5•5 Minimum Rock 24 24 24 24 24 28 30 31 33 36 40 47 54 61 68 75 Maximum 36. 36 36 36 36 40 42 43 45 48 52 59 66 73 80 87 ��. �aao