Document pmqvJykZKKrwawBng9MxpEJRB

and vialtors. The property *^'13 U *4 *0 0 %l 4 RAPIDLY ACCELERATING LOAD-GROWTH RATC since 1941 show* urgent need lor oddltlonol generalKq capacity; tone load will be dtoppad it lutgett unit la kftt ground and under the floor. Discharge conduits from the condensers edit be similarly located and will connect to the discharge flume along the rlveT bank. Each intake conduit will be of 36-in. diameter, supported on piling and concrete slab. Shear gates will be at the flume end of each discharge and intake conduit. The discharge flume, shout 260 ft long and 15 ft wide, will he reinforced Superstructure will consist of a structural steel frame with masonry walls, concrete floors and roof, glazed tile wall and quarry tile finish (or the turbine room. Partitions for toilet, locker rooms and other enclosures will be provided within the building. Turbine room and electrical bay will have ventilation, and the office will have comfort-type air conditioning. A 75-ton bWt-spxn station crane with concrete and sheet piling supported on 15-ion auxiliary-hook will serve the rock. The flume will release the heated turbine room. One MlOfftb lDO-lt-per- circulating water over 350 ft down min elevotor wIU extend from the first stream from the Intake head house. floor to the building roof. The yard substation will step up General Improvements. The contem oltage to 69 kv for transmission to plated rite of the new plant Is at on the main distributing substations In elevation somewhat less than 7 ft above the city and lor local distribution at mean low water. To protect the shore 13.8 kv. Electrical switchgear (a to ar from erosion by rfvor water and to per ranged that power may be supplied (or mit construction of foundations, flumes starting up motor-driven auxiliaries and conduits along the river batik, a from three external eourees. bulkhead of steel-sheet piling about Station Building. Construction will be semioutdoor, with a building en closing the turbine room sad the feoiltr firing aisle to the face of the boilers. . Boilers and Ians will be outdoors. Substructure will consist of a rein forced concrete mat extending under the turbine room and outdoor boilers 1500 ft long will be constructed. Cer tain areas beyond the pierhead line will be dredged to provide a deep riverwater intake and a channel deep enough to permit docking fuel-oil tank ers. The ship-docking area will be dredged to a depth of 54 ft to accom modate standard tankers. supported on concrete piling, driven to rock. Slab under the boiler will be 30 in. (hick, and under the turbine pedes tals 48 in. thick with the remaining por tions under the turbine room 15 in. thick. Building proportions In terms of A Tsilroad spur-Une siding will han dle Incoming equipment, and also offlank cars if this becomes necessary. The spur line will pats through the plant structure and into the switch yard, to unload materials near the points where they will be used.' width's length x height in feet are: Eighteen-foot roadways will be pro Office ................................... 25k 88x41 Electrical boy....................22x141*41 Turbine room........... .*. .$5x141*64 Boiler operating aisle... .16x141*63 vided around tho plant proper and along the bulkhead to the unloading wharves. Concrete sidewalks will be laid from the street to the office; park ing area will be adequate for employes Ill pletely enclosed, except on tij2 front, with a tand4 indutitolS FbodllftKu -IU U\aml]i,te ^5 and portion, of iha prop,,/ equipment Is located. These lic^A be mounted on high structure* separate pole lines requited, -til Water for domestic use gency plant needs will be uk^Y| the city water-supply *yta.vyBj sewers for properly drainage be needed, but drains Iron tlJ structure will discharge to thattjjj entering the river. Proper grtd^|S provide yard drainage direeilyttffi St Johns River. || Conclusion. The municipally^ utility is an integral depanmeufSdj the City Commission of the Chjj Jacksonville os to executive aod,*'At istrattve authority. George A Pius commissioner of public uti1ltles^5 rectly responsible for executing^ templated enlargements and imp* ments. Robert B Cowan, eagloetioi ager (or the city, is in direct c of the operation and msimeosi the city water and electrical uUuu reporting directly to Mr Pierced the eity commission. Reynolds, Smith and Hills, sonville, is responsible for eattodar* recommendations, reports, tudi! design of the new facilities. laeXsonvIlle loti HIstoriM IW XmwI /PnwmAwI riMrmrtlM, khr In .M .... MS........ .... IMP........ .... SO.fJP.OPO 00. fit,>00 ss.iJe.reo :*| test........ ----ipjj........ .... ten........ .... 19J4........ .... IMS........ .... 90.491,too S7.97S.S00 IT,ITS,TOO 9e.7PJ.eps IM.rse.UO IMS........ .... 19*7........ .... IMS........ .... IMS... .... two........ .... ilf.3l9.W0 1M.TM.U9 138.4IJ.0W tS9.7SS.700 l7S.S3t.000 19*1... .... ie*j........ .... 194)........ ----1044........ . ... mi.......... ... 113.S8S.TM i4i.4*j.eoq S1S.9TJ.4SO 3S0.9M.10S J07.4OP.SW ... 304.117.700 ... 419.100.MO .... 440,074.000 1930*. .... StO.TOS.OP9 ten*.. ... 0JJ.S4S.eop .wee*........ ... 794.970;0W 11.400 ll.4`JI ,taei W,spoil ts.josftl jo.wenY^ | JI.IOOX jMrt# JidOOjll 4l,K0V VI si.cednl SJ.SOSfll rJ.oooTf n.ootfjl ?s.o*M ii.oa1S S"I'.*00*9/411 i,oy tss.JSI |<t.S00]jj[j 00 1790) P O W E R Aprf -3 St!)? !3tr, 'J&itflar - ro a radiant-hearing Installation, the wrou&ht- connections ara welded and tested the concrete slob Is poured. - jifin pip* grid lies on o crushed stone foundation. After This serves as foundation for the insulation and Hoot pFreezing-Room Floors Need Heat M Ujtfpu ore planning to erect a low-temperature freezing or room, ward off trouble by following these pointers Eftoor construction. They will keep down expensive repairs By A W RUPP V C Patterson A Associates. Inc.. York, Pennsylvania ^Fwba construction lor relrigerated ffitou maintained at temperatures of sod lower must receive specie! ^tkeerfog attention when built di- f alyeo the ground. Experience proves jSS* forming in the earth under the fe/*ill eventually buckle the concrete fiJfcThU lj particularly true of large and where floors are at grade below. Credos) Ice nccumula- |K&fo the ground sets up a force that ftStPr niies and eventually ruptures ||gj]!loor slab. One preventive Is to install the heeling coils as in Fig, 1. The Problem. Usual design of In sulated floor consists of two concrete slabs separated by insulation. Fig. 2. Layers of Ice form in the earth that have a highly destructive effect, Fig. 3. ft often takes several years for enough to accumulate to cause visible damage. Cases have been observed where the floors buckled up 12 in. A few inches, however, is usually - serious enough to put a room out of service. The complete floor must (hen be tom up, expensive cork insulation thrown away, end ihe floor completely refold. This operation may cost as high as $4 per q ft of area. Why Ice forms. When o room is re frigerated, temperature drop through the insulated walls and floor must be equal to the difference between inside and outside temperature. At the floor, the surface temperature of the earth or fill against the underside of the bottom concrete slab, will vary with the heat conductivity of the ground, S'*1* May I,.8 (291) 91 m