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ST8201-CS 881108 (4)CONSULTING ENGINI' EIIS Mr. Joe Pilazzo Conoco, Inc. 3519 Patrick Street Lake Charles, LA 70605 Re: Denton Tap Road Improvements, C~ty of Coppell, Texas. Dear Mr. Pilazzo: I am transmitting herewith a fully executed agreement between Conoco, Inc., L. H. Lacy Co. and the city of Coppell, concerning the crossing of the Con-Dor 6" high pressure petroleum products line by the improvements to Denton Tap Road. I have also enclosed two blue line prints of a plan and profile drawing showing the horizontal and vertical relationships between the proposed road improvements and your facilities. Please note the location of the City of Coppell's existing 8" water line which crosses your pipeline and take the necessary steps to instruct your contractor to avoid damaging the water line during his construction work in the area. As per our telephone conversation of Monday, November 1, 1988, a meeting was held between L. H. Lacy Co. (the Contractor for the Denton Tap Road Improvements), Ginn, Inc., and the Cotton Belt Railroad for the purpose of coordinating work in this area. I have enclosed a copy of the minutes of this meeting for your use in acquainting you with the status some of the other work which will be in progress at the time your forces Will probably be accomplishing their work. As you can see by the proposed time frames for the various items of work in this area, it is important for Conoco to begin its work as soon as possible. Please contact me as soon as you have established your schedule for the improvements to your facilities so that we can coordinate your efforts with the City of Coppell's Contractor. Sincerely, / John C. Karlsruher, Project Engineer P.E. Enclosure cc: H. Wayne Ginn, P.E. Russell Doyle, P.E. David M. Snyder, Randy Fleming - City Engineer P.E. - L. H. Lacy Company 1710.1 i'r[,;l(,,l Road · ,%tlilc I(X) · [.11 l IR · I)allas,'l'cxas 7524R · Phone 214/2,1){-49(X) CERTIFIED HAIL Receipt ~P48&488265 Mr. Alan D. Ratliff City Manager City of Coppell P. O. Box 478 Coppell, Texas 75019 RE: DENTON TAP ROAD IMPROVEMENTS CITY OF COPPELL, TEXAS Dear Mr. Ratliff: We have received your letter and construction plans concernin$ improvements to Denton Tap Road where it crosses the Conoco Inc. operated Con-Der Pipe Line Company ('Con-Der") 6-inch hish pressure petroleum products pipeline. Conoco Inc. will permit construction across the pipeline upon the Contrac- tor and City of Coppell ("City") agreeins to the following requirements: After review with our En$ineering Department, we must cake exception to your suggestion that the line will nec require concrete coating. The pipeline is currently installed inside of steel casing under Denton Tap Road. This casing provides protection from external stress due co traffic; it also reduces the risk of damage co the pipe during installation of utilities, drain lines, etc. In addition, the casing provides a means of moni~oring the integrity of che pipe and provides a conduit for~ipe replacement if necessary. Ex~ensions to the casing is nec practical due to sags in exis~in$ line and because of cathodic protection considerations. Once the pipe is covered by the road it w~ll no ~ong be accessible for maintenance, therefore, we must require installation of tested, heavy-wall, concrete coated pipe under =he roadway. 2. The concrete coated pipe will be installed under the roadway and will extend approximately 2§ ~eet east and west of the construction bound- aries. The cost for this modification, est~nated co be $40,000.00 as shown on Exhibit A, will be borne solely by the City of Coppell. We require 100 percent of the actual cost be paid within 30 days of receip~ of an invoice after pipeline modif~catione are complete. The City will be charsed ~or actual costs for pipeline modifications, whether higher or lower than the es~imaced costs. 3. Conoco ~nc.eo D~v~elon 0ff~ce ~n Lake Charles, Louisiana, must be provided with fin&L construction drawings for all work which w~ll affect the Con-Der pipeline, includins a plot plan and a profile alone the pipeline centerline showing any grade work to be done. The current draFin~ do not show the eitant of grade work to be dona Mr. Alan D. Ratliff August 26, 1988 Page 2 beyond the limits of roadway. The profile should show the vertical distance between the Con-Dot line and-any proposed gradin$. Upon receipt of updated drawings, Conoco Inc. will revise the cost estimate to reflect any additional modifications required to the pipeline. All utilities which cross the Con-Dot pipeline must pass underneath by a mtnimu~ of 12 inches. Any utilities which parallel the pipeline will maintain a minimum separation distance of 5 feet from the util- ities outside wall to the outside of the Con-Dot line. 5. Conoco Inc. will not allow the city or its contractor to use any material or equipment in the construction which in the opinion of the Con-Dot inspector would hinder or impair Con-Dorts ability to safely maintain and operate its line. 6. Con-Dot retains the right to adequately mark its pipeline with perma- nent line markers to insure public safety and the futura safe opera- tion of the line and to meet Department of Transportation Regulation. 7. No engineering works, private or industrial dwellin~s, deep rooted plants, fences, other similar permanent structures will be allowed over any portion of the pipeline. 8. At any point along the pipeline where the existinl grade profile will be lowered by the removal of earth, the Con-Dot Line must be lowered to a depth which provides a minimu~ cover of 36 inches after final grading. 9. Con-Dot requires a minimu~ of 48 hours notice prior to any excavations construction, or movement of equipment across its right-of-way so that its line can be staked to minimize the possibility of accidental g~n~ge. Additionally, Con-Dor personnel must be on site during exposure of the pipeline and during any work around the exposed line. 10. The City shall indem~ify and hold Con-Dot harmless from and against any and all claims for injuries to person or persons or for damages to property arising directly or indirectly from work to be performed by the City or those under contract to the City near the Con-Dot pipe- line. 12. The Contractor shall indemnify and hold Con-Dot hamless from and against any and all claims for injuries to person or persons or for damages to property arising directly or indirectly from work to be performed near the Con-Dot pipeline by the Contractor or its sub-contractor. The City shall ass, ma all responsibility for any and all dmgae to the Con-Dot operated pipeline arimim~ directly or indirectly from work to ba performed by the City~ its contractors or subcontractors. 'Mr. Alan D. Ratliff August 26, 1988 Page 3 13. Con-Dor shall be na~ed as additional insured without any qualifica- tions or restrictions by the Contractor performing work near the Con-Dot pipeline. Contractor shall maintain in effect during work near the Con-Dot line the following insurance coverages: Public liability insurance covering all work to be performed near the pipeline, with bodily injury limits of not less than $100,000 as to any one person and $300,000 as to any one accident and with property d-m-ge limits of not less than $100,000 for each accident. Such insurance shall include c~¥arage for all liability assumed by Contrac- tor working near the pipeline under contract with the City with limits of liability not less than those set out above. It shall be the Cityts obligation to see that each and every contrac- tor and subcontractor employed by it carries and pays for the same kinds and a~ounts of insurance as are required of the Contractor. I certified copy of all insurance policies requested shall be received at the Conoco Division office in Lake Charles with Con-Dot Pipe Line Company named as the certificate holder prior to the comencement of work. 14. The City of Coppell shall indemnify and hold Con-Dot harmless fro~ and against any and all claims for damage to Denton Tap Road and associ- ated water and drainage lines arising directly or indirectly from work being performed by Con-Dot or its Contractors on the Con-Dot pipeline. To initiate work on the pipeline modifications to accomodats the proposed construction, please have a copy of this letter executed by an officer of the Contractor and the City of Coppell and return to me along with final construction drawings. Enclosed for your information are copies of the APl Brochure, "l~hat You Should Know About Petroleum Pipeline Safety". Please pass these along to the Contractor and Project Inspector. Should you have any questions, please call me at (318) 491-5913. Simc~erely, ClUe A. Rhodes Director-Access & Regulations CAR/138/165:$r 'Mr. Alan D. Ratltff August 26, 1988 Page 4 cc: Ann Kartsotie Jim Rau Joe Bob Anderson Steve Harsee Scott Mr. John ~arlsruh Ginn, Inc. 17103 Preston Road~ Suite 100, Box 118 Dallas, Texas 75202 'Mr. Alan D. Ratliff August 26. 1988 Page 5 ACCEPTED AND AGREED TO: Company: Si~nature: Name: Title: Date: Telephone: Attest: City of Coppell: Date: Telephone Hr. Alan D. Ratliff August 26, 1988 Page 6 EXHIBIT A DENTON TAP ROAD CONCRETE COATED PIPE INSTALLATION COST ESTIHATE Description Construction Haterials Construction Contract En$~neer~ns, Supervision and Overhead Estimated Cos~ $ 5,500 25,000 9,500 TOTAL $40,000