SS9402C-CS 960425 April 25, 1996
Mr. Kenneth Griffin,P.E.
Assistant City Manager/City Engineer
255 Parkway Blvd.
Coppell,Texas 75019
Re: Sewer Reconstruction for Bethel Road
Coppell,Texas
HDR No 08015-001-037
Dear Mr. Griffin:
Enclosed are prints depicting the revisions indicated by our field survey data. The re-laid
portion of the sewer required extends from Station 42+52.27 to Station 52+22.00. This also
includes adjustment of a manhole at Station 47+27.00. In order to correct the sewer from
station 42+52.27 to Station 47+27.00,the grade will need to be increased. The grade on
this section however,cannot be revised without affecting the next section. By the
contractor using a State minimum grade of 0.25%,the sewer grade can be revised between
Station 42+52.27 to Station 52+22.00. Grades other than the 0.25%indicated will affect a
larger portion of the sewer.
Sincerely,
HDR ENGINEERING,INC.
Jo . Ezz , .E.
Project Manager r 9 n/7 R-1)1
Attachment V
APR 2 6 1996 1'111
ENGINEERING
HDR Engineering, Inc. Suite 125 Telephone
12700 Hillcrest Road 214 960-4000
Dallas, Texas
75230-2096