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ST9401WA-CS 951108DATE: CLIENT: WlER & ASSOCIATES, INC. "~ ~o(,~ ~ ~ ,~ ENGINEER'S OPINION OF PROBABLE CONSTRUCTION'~OE-~,"~,~ Novembers. 1995J0. ,0.' 94-093 L,; PROJECT: Denton Tap Road ITEM TOTAL UNIT NO. DESCRIPTION OF ITEM QUANTITY UNIT PRICE COST BELOW GRADE CROSSING I ~,bandon 8" W.L. North of Parkway I LS 1,200.00 $ 1,200.00 2 Dp] Connection to End Exist. 16" W.L. 2 LS 500.00 $ 1,000.00 3 16"W.L. 2,710 CY 40.00 $ 108,400.00 4 16" W.L. Creek Crossing Below Grade 1 LS 35,000.00 $ 35,000.00 5 12"W.L. 250 LF 32.00 $ 8,000.00 6 Air Release Valves 2 EA 1,800.00 $ 3,600.00 7 16"G.V. 5 EA 2,000.00 $ 10,000.00 8 12"G.V. 3 EA 1,200.00 $ 3,600.00 9 5"G.V. & F.H. 9 EA 2,000.00 $ 18,000.00 10 Exist. F.H. Relocation 2 EA 1,800.00 $ 3,600.00 11 Fittings 2 TON 2,800.00 $ 5,600.00 Subtotal $ 198,000.00 10% Contingency $ 19,800.00 Total $ 217,800.00 Since the design professional has no control over the cost of labor materials, or equipment, or over the contractor's method of determining prices or over competitive bidding or market conditions, his opinions of probable construction cost provided for heren are to be made on the basis of his experience and qualifications. These opinions represent his best judgment as a design professional familiar with the construc- tion industry. However, the design professional cannot and does not uarantee that proposals bids or the construction cost will not vary i ~rom opinions of probable cost prepared by him. If the owner wishes ! greater assurance as to the construction cost, he shall employ an independent cost estimator. Prpd. by UTL Chkd. by Page 1 of 1 DATE: CLIENT: WtER & ASSOCIATES, INC. ENGINEER'S OPINION OF PROBABLE CONSTRUCTION COST November 8, 1995 JOB NO.: 94-093 PROJECT: Denton Tap Road ITEM I TOTAL UNIT NO. I DESCRIPTION OF ITEM QUANTITY UNIT PRICE COST ABOVE GRADE CROSSING 1 Abandon 8" W.L. North of Parkway 1 LS 1,200.00 $ 1,200.00 2 Dr~ Connection to End Exist. 16" W.L. 2 LS 500.00 $ 1,000.00 3 16"W.L. 2,710 CY 40.00 $ 108,400.00 4 16" W.L. Creek Crossing Above Grade 1 LS 75,000.00 $ 75,000.00 5 12"W.L. 250 LF 32.00 $ 8,000.00 6 Air Release Valves 2 EA 1,800.00 $ 3,600.00 7 16" G.V. 5 EA 2,000.00 $ 10,000.00 8 12" G.V. 3 EA 1,200.00 $ 3,600.00 9 6" G.V. & F.H. 9 EA 2,000.00 $ 18,000.00 10 Exist. F.H. Relocation 2 EA 1,800.00 $ 3,600.00 11 Fittings 2 TON 2,800.00 $ 5,600.00 Subtotal $ 238,000.00 10% Contingency $ 23,800.00 Total $ 261,800.00 Since the design professional has no control over the cost of labor, materials, or equipment, or over the contractor's method of determining prices, or over competitive bidding or market conditions, his opinions of i probable construction cost provided for herein are to be made on the i basis of his experience and qualifications. These opinions represent: his best judgment as a design professional familiar with the consb'uc- tion industry. However, the design professional cannot and does not guarantee that proposals, bids, or the constJ'uction cost will not vary from opinions of probable cost prepared by him. If the owner wishes greater assurance as to the construction cost, he shall employ an independent cost estimator. Prpd. by UTL Chkd. by Page 1 of I  Coppell, Texas 75019 P.O, Box 478 Coppelt, Texas 75019 214-462-0022 July 28, 1995 Wier and Associates, Inc. 4300 Beltway Place, Suite 130 Arlington, Texas 76018-1097 RE: Denton Tap Road ST 94-01 Dear Sir: The City of Coppell has received and reviewed the plans Submitted for the referenced project. I apologize in the delay in getting the plans returned with our review comments, but I have been trying to secure funding for this project so that it can be constructed in 1996 along with the Lewisville section and the S.H. 121 Bypass. I have also been working out the agreement with Vista Properties on the drainage solution. Up until approximately two weeks ago it was anticipated that this project would be funded and construction could start in 1996. However, the Council Finance Committee has recommended that this project not be funded for construction at this time. Therefore, it is my recommendation that we proceed with the completion of the final construction plans and start working on any utility relocations that may be needed so that when the project is funded we can start immediately. One item I would like to explore with you is the possibility of breaking out the water line in Denton Tap Road as a separate project and constructing it today. I currently have funding to do that project, but I am not sure if it would greatly increase the cost by doing that project early. I know the proposed water line would be constructed within future right-of-way. However, because it would be a benefit to the adjacent properties, it is quite likely that an easement could be acquired at this time and overlaid at a future date with right-of-way when the property is platted adjacent to Denton Tap Road. We need to discuss the concept for breaking out the water line. The following represents the comments associated with the construction plans: In response to your question, the City also prefers Alignment A. At approximately Sta. 203+00 you should begin widening the pavement withithree additional feet on the outside lanes. It appears that Council is interested in having the on- street hike and bike lane constructed. I realize that will impact the construction of the bridge and is not what we had anticipated. 2. The final plans should show that all drive way entrances, street intersections, and median noses will be required to have brick pavers. 10. 11. i2. 13. 14. 15. Valves should be provided on either side of any creek crossings for the 16" water line and also air release valves should be provided where necessary. The future street shown at approximately Sra. 215+00 will have a grade differential from the proposed roadway. Will that differential prevent a safe street connection? Also, with the proposed optional retaining wall will there be a visibility problem in the future? On Sheet 12, will the proposed bridge rails create a visibility problem for the driveway into Andrew Brown Park? A driveway turnout should be provided on the east side of Denton Tap Road at the median opening at approximately Sta. 202+66. Water line stub outs should be provided for property that could be developed on the east side of Denton Tap Road. Ten foot inlets and 21" laterals should be used at all Iow points. The drainage should be revised based upon the agreements being worked out between Coppell, Vista Properties and TxDOT to route water east at Spur 533. The future median opening shown at approximately Sta. 215 +00 shows a retaining wall on · the west side of Denton Tap Road. Will this interfere with the future street in that location? The median opening at approximately Sta. 220+00 should be eliminated. The Master Plan shows a future 12" water line proceeding west from Denton Tap Road along the future alignment of S.H. 121 Bypass. It is anticipated that the property north of that bypass in the City of CoppelI would take water from that system. Therefore, the water line that transitions west to east at Sra. 223 +00 should continue northward until at least the S.H. 121 right-of-way. The inlet at Sta. 237 + 16 should be relocated further south so that it will not interfere with a future curb return radius if a street is constructed at the median opening. A banded section of brick pavers should be provided around the intersection of Highland Drive with Denton Tap Road. In regards to the bridge pathway shown on Page 27, please note the comment about whether or not there will be additional bridge cost if we made both sides of the driving lanes 3,7 feet and acquired the additional 3 feet for each side up from the proposed 16 foot bike lane on the east side of the Denton Tap Road bridge. Continuing with the bridge pathway comments on Page 28, please note that based upon direction from Council, we should pursue constructing the bridge crossing for the bike path at this time as part of this design. Again, note the comment about whether or not we can narrow that bike path to 10 feet on the east side and use the additional 6 feet to put 3 additional feet on both the south and north bound lanes to come up with 37 feet of roadway. There are various other comments located throughout the plans that are of a minor nature that should also be noted and corrected as necessary. I would recommend that after you have had time to review these, at your convenience we schedule a time to meet and go over the comments. Also, included with the plans am copies of the report that includes various comments. I would like to say that I have never received a set of preliminary plans in color. Once I became accustom to the color it made for an easier review and easier recognition of the various components of the design. Overall, I was quite pleased with the quality and the effort put forth in the preliminary construction plans. I look forward to a successful completion of this project. If you should have any comments prior to our scheduled meeting please feel free to call me. Sincerely, , P.E. Assistant tSityJManager/City Engineer x4 DIRT PILE x 465,2 x 463.3 x 463.2 x 465.0 Q 0 :D : TANK II ~i......~ ':~...~=......-_==~_~:~ ... ; / 'x.. . · ~i ii:r- · ~,~?~'~';.' / --N ,, ~?" '?~ ..... .'1 . ~' J ":" I :%.