Cordovez│ │ St. │ │ │ St. │ │ │ │ │ Nebraska │S. of │Long St. │ 90.04│ 89.87│ 14 St. │ Cordovez│ │ │ │ │ St. │ │ │ │ Long St. │Map margin│Nebraska │ 95.80│ 90.70│ 15 │ │ St. │ │ │ Long St. │Nebraska │N. │ 89.86│ 88.94│ 16 │ St. │ Carolina│ │ │ │ │ St. │ │ │ Long St. │N. │Georgia │ 88.69│ 88.00│ 17 │ Carolina│ St. │ │ │ │ St. │ │ │ │ Long St. │Georgia │Harris St.│ 87.99│ 87.32│ 18 │ St. │ │ │ │ Alley S. │End of │Harris St.│ 97.20│ 90.10│ 19 of Janis│ Janis │ │ │ │ St. │ St. │ │ │ │ Harris St.│Alley N. │Long St. │ 90.09│ 88.90│ 20 │ of Janis│ │ │ │ │ St. │ │ │ │ Long St. │Harris St.│Kentucky │ 87.31│ 86.40│ 21 │ │ St. │ │ │ Long St. │Kentucky │Tennessee │ 86.39│ 84.60│ 22 │ St. │ St. │ │ │ Tarbell │Harris St.│Long St. │ 90.70│ 84.60│ 23 Ave. │ │ │ │ │ Long St. │Tennessee │Alley W. │ 83.77│ 83.47│ 24 │ St. │ of Tenn.│ │ │ │ │ St. │ │ │ │ │ │ │ │ Column No.│ (2) │ (3) │ (14) │ (15) │ (1) │ │ │ │ │ ──────────┴──────────┴──────────┴───────┴───────┴────── =47. Surface Profile.=—A profile of the surface of the ground along the proposed lines of the sewers should be drawn after the completion of the computations for quantity. An example of a profile is shown in Fig. 26 for the line between manholes No. 3.5 and No. 147. The vertical scale should be at least 10 times the horizontal. A horizontal scale of 1 inch to 200 feet can be used where not much detail is to be shown, but a scale of one 1 to 100 feet is more common and more satisfactory and even one inch to 10 feet has been used. The information to be given and the method of showing it are illustrated on Fig. 26. The profile should show the character of the material to be passed through and the location of underground obstacles which may be encountered. The method of obtaining this information is taken up in Chapter II. The collection of the information should be completed as far as possible previous to design, and borings and other investigations made as soon as the tentative routes for the sewers have been selected.