Los Angeles County Drainage Development

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Excavation-canal Section 4,000 cubic yards of the country may.move forward unhampered on the path

C.""t"t"-go* Sectil"s and junction -^ ,^^, of progress.and civic accomplishment' structures only . 7g,4o0 cubic yards i-uti"g the course of construction the Peck Syndicate n"i"r"r"i"l rt"Jt-go* Sections and used sevin draglines varyin-g from thredquarter-s yards to junction structures only . .9,743,0ffi,8ounds one and one-quirter l11d,.-1.:-.:1t^i":::Ft and the amount

Total length of box sections

Total length of arch sections i;;i i;Gif, "i pf"i" ".*.nt 12,, to zl,, .. .87 miles approximately 15 per cent, as only three feet extra over i;;;i i;;?ih of 'r"infor".d concrete .. *iitttr attop of stiucture was allowed under the contract' pipe2!"

."7'60 miles Th",1{19:ll'

:-t:-::**#i::f"':}:-f*::z7-E^Pavers

oourins on an av€raee of 6000 sacks of cement per day' ' The"following dala show the relation of the engineer's estimate, exclus'ive of overhead, etcetera, to contract price: Dist. Engineer's Contract ' Date for No-. 'Eiimate Price Contractor Completion - ri Sfi[s,tit.so $ 936,709.28 Torson cons. co. oct. 1' 1929 ,a 'i',0g2',qos.ze '2,121',645.00 will F. Peck co. svnd. oct.1' 1929

834,879.87 791,282.16 Baruch & Coonev ,()ct' r' tvzv

The estimates for Districts No. 22 and No. 23 were based on material costs antedating the date of receipt of bids- by a year or more, as no improvements of this nature and ot .u"h l"tg. proportions had been made for q lotg period. It was, theiefore, natural that the large quantities of basic materials needed, developed a keen competition among material men, with the result that very noticeable reductions in bid price below estimate were reflected in the bids received.

Photosrabh shozoins itetoited construction of tunnel one mile in Iensth 12 fi. r lO lt.,-6 in., which, emfties into Rio Honda at Monte- -itt1o.

Catif The' sbntleffien at the left are Mr. L' B. Platt of -the ioithwittirn Portind Cement Compony and Mr. E. H' Bashozp, Geniiot Monoge, of the Wilt F. Peck eo.-Syndicote, General Contractors'

There are included in the contract 137 standard catch basins. 127 standard manholes, 2 standard junction structures and 1590 lineal feet of piling at the outfall.

It should be noted that thi arch section mentioned in the foregoing tabulation is included in the contract at a price pet iitteil foot complete, including all excavation, concrete and reinforcing steel.

It is well to-note that the contractors are using the tunneling method rather than open cut for the construction of this i'rch section, and owing to the comparatively shallow overburden are pouring tfieir concrete through vertical chutes, drilled at lntervils along the line of the tunnel'

On Sections 23 and' 26 nearly a million sacks or approximately 94,000,000 pounds of Victor Portland cement, manufactuied by the Southwestern Portland Cement Compa1tY at their Victorville. California, plant, were used' In the neighborhood of 800 cars were required to move this large amount of material.

While these amounts are impressive it should also be realized that an enormous distribution of prosperity was created by these drainage districts. Freight paid to railroads alone amounted to a considerable item. A large number of workmen in all lines of endeavor, such as those engaged in the manufdcture and production of cement, steel, itJ"hitt.ty, rock and sand, etc., and those directly participating in the construction work, received direct definite Lenefi-ts. Merchants, ranchers, manufacturers and workmen shared alike in this distribution of public work.

Finally the people residing in and qwnjng land in these drainage districts iave a coifortable feeling- of security .in lcnowiig'that their lives and property are safe f-rom the destructiv"e forces of flood and witer'and that their section

For instance, the price bid by the successful bidder per cubic yard for concrete in District lr{o. 22 was approximately 26 per cent below the estimate. Likewise, the reinforcing stiel in this same district showed a bid of approximate1y"22 per cent less than that used in the estimate. Similar conditions prevailed in District No. 23, and the reductions were more marked, due to the greater quantities of basic materials required, District No. 23 representing a cost ot more than twice that for District l{o. 22.

The price bid by the successful bidder in District No. 23 p"t "ubi" yard of-concrete showed a reduction of approxi- mately 32 per cent, while the reinforcing steel showed a reduction of'approximately D per cent below the engineer's estimate.

Advantage was taken of the reduced prices for basic materials in riakine the final estimate for District No. 26, thq .-"ff..t of the iht.., and the last'to bd awarded' There were still reductions reflected in the bid prices of the suc(Continued on Page 47)