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HomeMy WebLinkAboutCH2M Hill Engineer's Report 79Jun14 RUNFI' & LONGETEIG, CHARTERED JOHN L. RUNFT ATTORNEYS & COUNSELORS AT LAW WAYNE L. KIDWELL IVER J. LONGETEIG 420 WEST BANNOCK STREET OF COUNSEL DAVID J. STECHER P. O. BOX 953 TERRY E. COFFIN BOISE, IDAHO 83701 (208) 345-6521 June 14, 1979 Mayor Joe Glaisyer City of Meridian 728 Meridian Street Meridian, Idaho 83642 Re: Engineer's Report on the Cherry _ Lane Golf Club Irrigation System Dear Joe: Enclosed with this letter is the report prepared by the engineer retained by the Cherry Lane Golf Club, Mr. Bill Johnson of CH2M Hill concerning his investigation of the irrigation system at the golf club site. I believe that the report speaks for itself_ and has particular value from the standpoint that it comes from an engineering company completely outside o.f_ the project. [ae had advised Cherry Lane to hire this independent assessment in order to help move things along to a reasonable solution to these problems. Perhaps after you and the council has had a chance to review this engineering report, we might have an informal meeting in an effort to get this matter concluded before it becomes a big problem. By copy of this letter and copy of the report, I am also advising John Fitzgerald, Esq. of same. Best personal regards. Very ~i~'uly yours, IVER J.\LONGETEIG IJL:jec cc: John Fitzgerald Cherry Lane Bert Mitchell CH2M ~ ~- ~H~~LL engineers planners 8 .Tune 1979 economists scientists BO~p, 71 Mr. John Runt Runft and Longetsig Chaixtered P.D. Box 953 Bois®, Nacho 83~fl1 Dear Nlr. Runft: Sub~eot: Cherry Lens (~ai£ Club Irrigation System .,, This letter ie.~{ to con!'~tr~' '5''~r "'S ~'~'"7°~' ' t®~.ap ©ne coan- ve~rsation summarizing~fifailure°£ °~ investigation of the a?~cav~e irrigati~-n sy~rt On 5 Jun® 1979, an vnsite review of .the irrigation sysatem was ms~e with the ot.l©wing indiv~,duri-Is present: Mr. RicheStanwoo$ a CC.L,R. Inc.) CG.L.R. Inc.) Mrs. n. ta. D, Lov tJUS~ Mr. ~. w. Wright C~Atractor) Mt. Hob Bsldoc~ CCIiZM HILL) Mr. W F. - Johns4a csha~raccteristics ai t +~ p P the pzwjict. The group ~abeorved airy, discussed>< ~ilx'®as where failures hard occu~~e~i conataru~ttic~ .prooeduroa>wl;~t procedures for removing water' ! the di~tr;ition systasit th® nature and phylaical i s failur®s; and other aspects of The pipeline Nay ropQrted,ly installed in the fall of 1977 .:~ yste~n was nqt completed until data suer of .1,978. The system tvaz~ used gor about thx'ee months by the contractor CA'uguAt to E'k~tcb+euc, 1978) to estab~.ish grass on the cour$e. The ~i~+~t~o>h sy~te>~a ware not used fpr a period o£ a week' , to t~ Qa~ye' priflr t© winterising the. lines in late October 1978. GENERAL Nui~w~Coui: pipe tai~;'~uc®s became ~tp~+ar-t in the sprina o~ 1979 w?ien it was .attemg;~ed to start~v~ a -irrigation system. ,, ~aa~ority o~ at>n ~~4a~thatad 5 r ~~D i • f • of ruptured class Boise office ~ 700 Clearwater Lane, Boise, Idaho 83707 208/345-5310 -~ J Runf Mr . C>hz~ Pag® 2 8 June 1979 $a~o.71 160 pressure..irrigalion pipe has-men replacaed and the syai. was berme operated by hand ate ~3,e time of our inspac- tiori.' ~+TATI~k : ~ASOVAL An air t~pressor was used by Cherry Lane staff to re~aov® water facas~ the pip~li.~ss is late C~a~crber 19?8. The general p~tedure used was icort~- as fo1~-~: All side lateral valves vn a trunk line ward electriacally actuated to the v~~ ~;pc~eitlan .a .oQa~ r s,~or was nttacahed at quick couplings; and a r was b~c~t- t `the 1i~~'"~~" only air was -e~i:'~:~.nq, This:.- , p~or~edtws ar~t4 used for. about foul days in an atPt to reme Mater ~rp~ the pipel~.nes. T~ Mae no :~tgt auRde .to isolat*:, ividual sid® laterals during the ~bl©av auk: p~~'e. xri a~~. opi~3on, with th~s~ prc>~iodure us®d, it' ~rv~tld be expeat+ad:.°t~at a significant as~uat cif water ~u],d , ha~re bin ~'+~'- .around in the system, but hot neQeeserly ~c~~caed out the sprinkler heads as intended. PIPS. FI#,iLU~tE Several hundred feet. of brol~en pipe w-s observed at a nwab®r of locations on the s~1Me. Pipe failures were characterised by ehai~terinq ~ eplit#g, spiraling as~d chevercan cracks ~ all of v-I~teh ale indiw~wt~-e of buret from ex~aassive int®rnal resait o~-water file pipeshlr~siagtlast winter®s were a lkbant •ix pipe ~via~t#.~t. had burst ~rh,~ah reportedly showed eviAtse of be~ii~-g d!~~eoted to the point that "kinking" o+~~~• Thar, i~ - rely Wait, i~oad..3,anstallation simce~ it u~nece~t±~arY s~aress into the pips and ~y~e er~ it sign cast ruction '°~ pipe crt~gt~ ~ sect~an. wr~uld be di:Efia~.t to say that "k~~k~~~tg" -was the primary oasuse~ .+ef the ~a,3,lur-es+ ITIUN$ ODi p3P~ Yt is not reamed tp store pVC pigs in direct sunlight for as extend±'~ of times since the pipe caa be adv~er~Rely aft ultraviQat f W~ rays. ~xtendsd exposure aan ns;~u-e disck~ta~~~~x asd loan , of impact resistance. Bo1~rtv~r, tansil• shstrh is net ap~ceoiably affected. ._ ,yI Mr. Jahn Runft Paga 3 8 June-1979 BQ40.71 ThQ affect of extreme c~o1d on PVC pipe was also considered. Printed mat®rial from a numb®r of pips manufaoturers indicate th~it,a~t the pipe becom®s colder, it .will 1oe® impact r®sistanc®k but tensile strength actually increases. Since the failures in question. were, in, all proabilit~r,. tensile related, it is \. unlikely that Vii` Qr scald weather .e~,tcame aont~ibut®d to the ' failures. ~ ~~ PUS STATION 8®vreral gen®raf 'ar~~~ of conaer~ ~~ o'heerved during a aussory inspect~.on of the pump stat~.on which may deserve mention. 1. The pre~sura r~li®f valve for the syettem was water ate!'[ eA~re~ced with •iit. It is doubtful the valve ~~i_operate f©r long under these con$iti~was. It would be desirable to raise relocacte th+a valve where it can be observed repaired ~.~' neceaesary. 2. The px®ssure gage for th+s system water. A,~~an it is devices wil;'c~perate. r®lr~ta vr.: replace que~tiot-able Ie would b the ~~9®. under that or and was also and®r how long this e d®sirable to 3. A piea® of Window sar~t had been temporarily installed to:~keep largi~ debris from entering the pump suaticens. This p~tbably won't be a long ts~n s©l`un to the gblem and further modifica- tions ;+would be ben®f~,cel. The electronic tist~.ng system was ~t operative at the time of ouac inapst~tion. ~-, our opinions the winter $hould not,, have adve~s~el,y affecs~ed the timing system. The contractor a-ppa~ntly also ha~I - question, rout this and has indii~ated t mould hav~-~ scx~©ne onsite~ 3n aevernl days to check. oak the system. of souses, if tt~e control wireffi were damaged during, pipe ~`epa~.r'a, this could esplslr~ the malfunction. SY~RY Yn su~aty, we fs~el. that the pri~~ause of pipe falhze was water #~eexing in ths., lines. In all likalilaood i i r.r Mi^. John Runft~ Page 4 8 Jung 1979 Ba4Q.71 the. ~-ater was pt~ged ini~a fiha eysts~- a~uring the irrigation eea~ and a a~q~ti~ioant ~uwunt steed in the eyst~ 'thrc~uQh the ~1'il~tillsC r~aus~~g -the bre~ge . ~~ you have adc~itianal que~tiona ar quid like to pursue sifio arena in ~ac-~~ d~th, plea4e wall me. Vary truly yours, 6lilliasa F. Johnson Manag®r Watar D4partmsnt b~JB cv a Cherry Lars Recra~at~.©n, Inc. J f. E°~TIMATED FOOTAGE OF ~OOKEN PIPE ON GOLF COUft SE: Nole Footage Total No. 1 1©O, 150, 60, 120, 200, 200, 120, 120, 500 1570 No. 2 120, 120, 60, 60 360 No. 3 60, 60, $0, 120, 60, 120, 100 600 lvo , 4 60, 20, 60 140 No . 5 60 60 No. 6 10, 160 170 No. 7 60, 120, 60, 60, 60, 150, 100, 30 640 No. $ 120, 120, 70, 60, 120, 60, 120, 120 790 No. 9 15, 100, 60 175 TOTAL 4505 Oost of pipe purchased so far--$352' .59. 50 half heads needed for No. 1,2,3,6,7,$, and9, 20 full heads for No, 4,7, and $. Cost X13$0.00 Cost v~3250.00 .~ • • ,t 1, Screen on intake pipe to pump not installed, 2, Cover on pumps and electrical box not installed. 3, .Delay in raising pu~scaused delay in getting sprinkler system in operation at start of season. La., lmprop~er sprinkler heads installed on most fairways are incor- rect for area they are to cover (full heads are in a.nd half heads needed). Some fairways need more heads than are in. 5. ~l.ectrical wiring has not operated correctly since insta]_]_ed, 6. We have incurred a 75~ loss of revenue due to sprinkling sys- tem not working corr~etly~ from changes being aiad~ on fairways, and utility installation of lines. Changs~ will be made on Noy 1,2,3,and9 fairways. F ees have to be moved also. ~ ~; ~~ i ~ ADDITIONAL EXPENSES INOt~RED: ~Pe ~ '99.99 Rent on trencher 595.$6 Rent on 36" wrench 12.36 Fuel and filter .73 ~'~t~a1 detector to find wires 10.90 Labor 2187.70 Rent on pump 22,15 Hose for pump 5.67 Glue 5.34 Tape 2,27 Fan belt 2.g9 S belt 2~9g Spark plug 1.84 Hose 19.95 TOTAL ~ 97'0.63 ~.~retr~.w~~. ~i11 tea aee ix~. fit{ eet3~nste ~t at 1flQ.t9t~