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DR9101-AG 900424Roy. 4-24-89 AGENDA REQUEST FORM CITY COUNCIL MEETING April 24, 1! ITEM NO. iTEM CAPTION: Consideration rejecting e combined Request for Proposal #004~ for Hill Drive allgy and Oak Trail drainage improvem~nts, Proposal for Oak Trail drainag~/mprov~ments as advertised. OTHER REP.: EVALUATION OF ITEM: DATE: April 13, 1990 At 10:00 a.m. on Monday, March 5, 1990, the City of Coppell accepted bids as advertised (see attached advertisement) for localized drainage improvements for (1) Hill Drive alley and Oak Trail drainage improvements, and (2) Oak Trail drainage improvements; both combined and individually to take advantage of any economies of scale and cost effectiveness. Please refer to the attached bid tabulations and location maps. Staff had hoped to achieve the successfull bidding of Oak Trail; however, Oak Trail's preliminary report had just been finished when we were ready to bid Hill Drive, and the consultant was asked to combine the 2 projects into one bid. Staff must recommend rejection of the bids as stated since (1) we do not yet have the easement to the rear yards on Oak Trail, (2) the bid is not within the estimated budget and (3) there is a utility conflict. When these matters get resolved, the Oak Trail drainage improvements will be rebid. BUDGET AMT.: COMMENTS: LEGAL REVIEW BY: Staff will be available to answer any questions. AMT. ESTIMATED: AMT. +/- BUDGET: FINANCIAL REVIEW BY: REVIEWED BY 6]4: AGENDA REQ FORM 0588DS March 6. 1990 Mr. Russell R. Doyle, P.E. City Engineer Post Office Box 478 Coppell, Texas 75019 Re: Hill Drive & Oak Trail Drainage Bid Tabulations Dear Mr. Doyle: Enclosed are bid tabulations for the referenced project. We have examined the bids and find no irregularities that would disqualify the Iow bidder, SYB Construction. However, you may wish to request financial information and references to further qualify the contractor. Since there appear to be only minor discounts for the award of both projects to a single contractor, we recommend that the award of the Oak Trail project be delayed pending the resolution of the utility conflicts. However, should you choose to proceed with the project, we recommend that you choose Alternates 9A and 15A. For a small increase in cost, the pipe capacity will be significantly increased. If you have any questions, please do not hesitate to call. Sincerely, David E. Lucado. P.E. DL/smh Encl. '1 -' OAK PROPDSED DRAINAGE i~rROVE.,,~N,5 SHADY ~,~LE LANE J ~ICINITY NAP CI-I'Y OF COPPI~L DRAINAGE IMPROV1EMENTS BID TABULATION I SyB CONSTRUCTION CO. I'IA~ROD PAVING CO. GIB~ON & A,S,.~OC1ATES P.O. Box 1~14 4739 VIcksi~arg P.O. Box 000579 ..... '~ia~o~TX 7609~ DaJla.~:TX 75207 It~.m ~ Unit Unit Unit ilo. OesoiplJa~ ~an6ty Unit Pdce A~ouat P~ice .~maum P~ic~ ~J~ount 1 :~wcutConc. PQwm~nt ?gl L.F. $1.T5 $1~384.25 $4.15 $3r.-~82.55 ~3.50 $2~768.50 2 Remov~ C, oa=. Pediment . 570 ~.Y. $10.81 J $1~161.70 $16.~0 Sg~4~2J30 ~J~.130 ~1;5E0.13~ I m~ F~ AWeD ~ BO~ C~S ~ $1;000.00 I $1:093.00 ~ J $700.00 JTOT~FORAW~O~BO~ J $92~767.35 J $108,207.75j Ag. rafions, CustomSawlng] bonuscswo~kingpart, tlmelrrom ,~ ~,~Hme~a~469,~9o4 and Lace Making. 15 yts home For appo ntmen ~ ~ :~ or t~qe~u~ ' . . -~ - ~&n~r ' DURA CLEAN Carpet & Floor Cleaning 471-0032 Lunch Walt, Cook, Kltchl~n Apply In Person ~TEAK ,: documents ma b~ examined after . Feb .nl~ ary 16, l~0, at tim following: ~Sh~zo Smrek & T~g lac. 330 Union Station Dallas Texas 752~ 21~0-6111 ~ . .. .. · ~%~ j Texas Con~ctor '" r~43-~2: "~' t' ]11 lllll5tcmmonaEr~way ~ t, - ~/~/ 214-358-3357 for variance from S cotton 34.5 1 (b) of thc City's Zoning Ordinance AN ORDINANCE OF 'Fill:. CITY OF COPI'ELL, TEXAS ORDINANCb; NO. 89438.1 AN ORDINANCE AMENDINU ORDINANCE 341, TIlE SUBDI- VISION ORDINANCE OF THE CITY OF COPPELL PROVIDING AND ESTABLISHING A FEE TO COVER '/lie REVIEW OF ANY REQUIRED DETAIL STUDY OF EYDRAULICS AND liYDROL- OGY DESIGNED FOR DEVEL- ~ ' ~ OPMENTS WITflIN AREAS OE reservations. ' R~femnces manda~.~~ '.; [' } ){&': R~nablcm~s~' ?~?: [] .~ua~om. . CLAUSE PROVIDING A SEV- 393-1362 ' 3t 3.2 [ ] · .: ~l~a 4~10. ~ [] '. :l:':~o'Owncr re,mca ~o figh to . ERAB LITY CLAUSE PROVID- I. ] ltr2'231l, w~voanyinfo~ iesotmrej~t ING A PENALTY OF FINE NOT FOR TIlE MAN Chairslde Assistant : '~ - ' identical copies ofhls bid and must DECLAR NG AN E~E~CTIVE TIIAT IIAS EVERYTIIING Full-llme, experlence a plus. ~ ' Each bidder shall submit two FOR EACH OFEENSE' AND . ~ ' ' ', ,,,deposit ~ercwi~, a ~curity in the DATE ~¢ * cond OhS rovd~ storage shed. I I)efore 8:30 a,m, or aEer 8 P,m,~ I .~; ~ ~ ~tl~ ~ 1~. ~.l ~ ~< ~ City of Coppell, Text, this thc N~I, 393-0~6 at oa,~r times leave mes~ge: l~2~ P~GIPAL I~MS OF WORK 9fl, day of May. 1989. q >~;' ~ ~ · '~ ~EPROJE~5 ARE' APPROVED' condilion, very little use, made in Japan, highquality. $2,500. 393-2719. fr MOI~EI.S' ACTORS Dupont Mo(leis, Inc. is search- ing for new faces to represent for TV commercials, films, and catalog work. No experience or training required. Children, teens, adults, all lypes needed. No photos necessary to como in. Call 214-520-8790. Subway shop seeking part-lime, smiling responsible person, 3 I0 4 nights per week, $ p.m. tu 12 p.m.~ npply in erson, 110 Sandy Lnke Road, sure 106, Coppell. 3t,3-2 MAYOR of 18" RCP storm sowe~ and 3 grat~ ClTY SECRETARY the City Council, F0U ams: ( i Sea ed proposas addressed 0 (''~ 150 N. Moore Road ChddmdsWorkl ~$3,Parkway ; ProposaINo. 004?)w~lDgrcc¢lved ,~' ?:30 P.M. - MARCII l, 1990 393-1550 t~^,,m~ Ct~T£~$. ":' ':: 3~3,2295 Parkway "" t~ou evard~': unt ' ':! ~!" 2~S PARKWA~ l.ymt Z. Wiggins: Director Sandy Story: Director . 10:00a.m. MatchS, 1990, andth~n':' ;~ ' Agcnt's of f icc in thc Town Center, 255 Pa~kwa), Boulevard during regular working hours 8:00 n.m. to 5:00 p.m. Monday d~rough Friday. Thc scaled bids are due at 10:(X) a.m. on Monday, March 12, in the Purchasing Agent's olfice at which time they will be o~ned and ~ead aloud. For more information, call the I'ur- eha.slng Agent at 462-0/122. 3L3-9 Mac Users (,rpm) 1 o I t)rm January 29. 1990 Mr. Russell Doyle, P.E. City Engineer City of Coppetl 732 Deforest Coppell, Texas 75019 Re: 141 Oak Trail Dear Mr. Doyle: Enclosed are three copies of the Trail Drainage Study. your convenience. Sincerely, David E. Lucado, P.E. Project Manger OEL/np encl preliminary report for the Oak I am available to discuss your comments at I~dlas. 'lbxas 7521J2-4~02 214/748-6740 OAK TRAIL DRAINAGE CITY OF COPPELL. TEXAS Prepared by DeShazo, Starek & Tang. Inc, January 1990 TABLE OF CONTENTS 1.0 Introduction ............................................................ 1 2.0 Summary of Data ....................................................... 1 3.0 Proposed Solutions ...................................................... 3 1,0 I ntrocluction 1.1 Purpose On the Coppell City Council approved funding for a study of the drainage problem in the back yards of the 100 block of Oak Trail. The purpose of this report is to present the findings of the study and recommendations for consideration by the City. 1.2 Problem Statement The homeowners residing at 141 and __ have reported that their backyards flood several times each year. It appears that runoff from the other backyards along the street ponds in these two lots to a depth of as much as 5 feet during heavy rains. 2.0 Summary of Data 2.1 Homeowners Information regarding the history, nature and extend of the flooding problem was provided [~y homeowners. A summary of their input follows: a. Several times each year during heavy rains, the backyard of 141 Oak Trail floods to a depth of It to 5 feet. There appears to be no outlet for the runoff into this lot. b. The water often backs up into the adjacent lot, __ Oak Trail. Prior to the construction of the Summer Place Addition to the west, the lots did not flood. d. During heavy rains the ditch along the west side of Oak Trail fills up until it crests the road in front of Oak Trail. Prior the filling of the lot at __ Oak Trail, the ditch emptied through a swale in that lot and discharged in the gravel pits in the area now occupied by the Summer Place Addition. The elevation of Oak Trail has been raised by recent resurfacing; therefore, the drainage problem in the ditch along the west side of the roadway has been aggravated. 2.2. Design Documents Review of the design drawings for the Coppell High School and the Summer Place Addition provided the following information: a. The drainage design for Summer Place Addition does not account for offsite drainage from the east. The drainage design for the Coppell High School accounts for future runoff from the area nominally bounded by Summer Place Addition to the west, Sandy Lake Road to the south, Shady Dale Lane to the east and Willow Lane to the north. The existing wye inlet near the southeast corner of the school property has a qB-inch diameter stubout to the southwest for future drainage of the area described in b. above. 2.3. Field Survey and Reconnaissance A field survey was performed to determine key elevations used in the study of existing conditions and the evaluation of possible solutions. Drainage divides shown on design drawings were verified by field survey. 3.0 Proposed Solution 3.1 OPTION 1 Interim Solution A A solution to the specific problem at 141 Oak Trail would be the construction of an inlet in the backyard and a storm sewer along Oak Trail and Willow Lane discharging into the existing wye inlet on the high school site. 3 The drainage area to the proposed inlet as shown on the Coppell high Scl~ool plans would be 6.5 acres. Using a 15-minute time of concen- tration, an intensity of 9.8 in/hr and a runoff coefficient of 0.45 for SF-12 zoning, the flow rate would be 29 cfs. The probable construction cost for Option 1 would be: "Wye" Inlet 1 @ $3,000.00 $ 3,000.00 33" RCP 850 I.f. @ $50/If 42,500~00 $ 45,500.00 3.2 OPTION 2 - Interim Solution B An alternate to Option 1 would be to construct an additional inlet in the Iow point of the ditch along the west side of Oak Trail. The storm sewer would then be sized to accommodate the area between Oak Trail and Summer Place Addition. The probable cost of Option 2 would be: "Wye" inlets 2 @ $3,000.00 $ 6,000.00 33" RCP 200 I.f. @ $50/If 10,000.00 36" RCP 650 I.f. @ $60/If 39,000.00 $ 52.000.00 q. 3.3 OPTION 3 - General Solution A general solution to the problems identified in previous sections would be to design a storm sewer main along Oak Trail and Willow Lane for ultimate runoff from OA-2 and OA-u, as designated on the Coppell High School Drainage Area Map. In addition to the "wye" inlet in the backyard of 141 Oak Trail, an additional "wye" inlet would be constructed at the Iow point of the ditch along the west side of Oak Trail. If future improvements of Oak Trail, Willow Lane, and Shady Dale included curb and gutter, the main would already be in place. The probable construction cost for Option 3 would be: "Wye" Inlets 2 ~ $3,000.00 $ 6,000.00 48" RCP 300 I.f. @ $90/If 27,000.00 36" RCP 350 I.f. @ $60/If 21,000.00 33" RCP 200 I.f. @ $50/If 10,000.00 $ 64,000.00 3.4 Summary Three options have been presented, all of which would solve the immediate problem in the backyard of lU, I Oak Trail. 5 Option Comment Probable Construction Cost 1 Addresses only the problem at $42,500.00 141 Oak Trail 2 Also address the problem in front $52,000.00 yards along Oak Trail 3 Addresses problems in 1 & 2 and $64,000.00 provides for future improvements of area roads The construction costs given include no contingencies and should be used for comparison only. 6 ......... RECORD "",, : : 'DRAWING CITY PLANS _ -- -- C©PPELL ~ -- -= H,CH $CH©OL~----- DRAINAGE AREA MAP .... COPPELL ..... Consideration of rejecting the combined Request for Proposal #0047 for Hill Drive alley and Oak Trail drainage improvements, and the Request for Proposal for Oak Trail drainage improvements as advertised. and Nelson voting in favor of the motion. Item 17. Following discussion on this item, Councilman Morton moved that the combined bids for Proposal #0047 be denied. Councilman Smothermon seconded the motion; motion carried 7-0 with Mayor Pro Tem Wilkerson and Councilmen Thomas, Morton, Smothermon, Cowman, ~Robertson Item 18. Consideration of awarding and approving a contract for Hill Drive alley drainage improvements to SYB Construction Company, the lowest qualified bid received, for an amount not to exceed $33,290.35, and authorizing the Mayor to sign after the contract is fully executed by the contractor and reviewed by staff. Following discussion on this item, Councilman Morton moved that a bid in the amount of $33,290.35 be awarded to SYB Construction Company and authorized the Mayor to sign. Councilman Nelson seconded the motion; motion carried 7-0 with Mayor Pro Tem Wilkerson and Councilmen Thomas, Morton, Smothermon, Cowman, Robertson and Nelson voting in favor of the motion. Consideration of approving the Letter of Agreement with the NCTCOG; 1988-1990 Coordinated Work Program, Common Vision for Trinity River Corridor; and approval of funds for NCTCOG's assistance to continue the Collective Regional Study in the amount of $3,425.00 for FY 88-89; and $3,560.00 for FY 89-90, and authorizing the mayor to sign. Item 19. Mr. John Promis, representing the North Central Texas Council of Governments (NCTCOG), was present to discuss this item with the Council. Following discussion, Councilman Morton moved that the letter of agreement for the 1988-1990 Coordinated Work Program be approved as stated in the caption. Councilman Robertson seconded the motion; motion carried 7-0 with Mayor Pro Tem Wilkerson and Councilmen Thomas, Morton, Smothermon, Cowman, Robertson and Nelson voting in favor of the motion. CONSENT AGENDA Item 20. A. Consideration and discussion of resignation of Robert M. scott from the Planning and Zoning Commission, effective May 1, 1990 Consideration and discussion of resignation of Jimmy Hensel from the Code Advisory and Appeals Board and the Building and Standards Commission. C. Consideration and approval of establishing June 12, 1990 as the date for Public Hearing to consider a capital improvements plan and the adoption of Impact Fees. Councilman Morton moved that the consent agenda be approved with Item 20C carrying Resolution #042490.1. Councilman Thomas seconded the motion; motion carried 7-0 with Mayor Pro Tem Wilkerson and Councilmen Thomas, Morton, Smothermon, Cowman, Robertson and Nelson voting in favor of the motion. EXECUTIVE SESSION ~Closed to the Public~ ES-1 A. Article 6252-17, Senate Concurrent Resolution Number 83, discussion with city Attorney concerning matter involving privileged communications between attorney and client. Page 7 of 8