Public works . distance of 2 milesover the subgrade. The north half of comtract 2 was supplied withcement from the freight yard at Westchester, withbroken stone from Marlborough quarry and withlocal sand hauled in trucks and stone supplied bythe New Haven Trap Rock Co., all hauled to themixer by trucks. The south half of section 2 wassimilarly supplied from storage at Colchester. Contract 3 was supplied with broken ?*:one, sandand cement hauled from the freight yard by indus-trial trains in Colchester, and contract No. 4 wassupplied with cement and aggregate, hauled by in-dustrial trains from
Public works . distance of 2 milesover the subgrade. The north half of comtract 2 was supplied withcement from the freight yard at Westchester, withbroken stone from Marlborough quarry and withlocal sand hauled in trucks and stone supplied bythe New Haven Trap Rock Co., all hauled to themixer by trucks. The south half of section 2 wassimilarly supplied from storage at Colchester. Contract 3 was supplied with broken ?*:one, sandand cement hauled from the freight yard by indus-trial trains in Colchester, and contract No. 4 wassupplied with cement and aggregate, hauled by in-dustrial trains from the New London yards andquarry. The sand for this contract was deliveredinto bins by derrick and loaded from elevated hop-pers to the trains. Cement was also delivered bywater at New London and stored in large quantitiesthere. The concrete mixers working south from Col-chester on contract No. 3 and north from Nev^London on contract No. 4 eventually met at Salem,where the two contracts joined, and were supplied. CLETRAC TR.^CTOR HAULING 3 1/2-YARD SAND TRUCK 1,000 FEET AROUND SECTION OF NEW CONCRETE PAVEMENT AT COLCHESTER with material delivered in i8 rleel batch boxes hauledin each by four 9-car trains drawn by Whitcomb orBurton gasoline locomotives. The cars were filled conveniently through gatesat die bottom of the loading hopper and were op-erated in 9-car trains except wihere the grade wasso heavy that only 5 cars could be hauled. Thelength of the industrial tracks was limited by thelength of time required for hauling, when the latterbecame so great as to delay the mixer. This re-quired shifting the bins about every 10,000 feet andit was found less expensive to haul the aggregate andcement in trucks driven over the new road as faras the concrete was hard enough to endure traffic,a distance usually about 8 days behind the concretemixer, and there dumped it on the concrete surfaceto be shoveled by hand into the industrial cars onthe 24-inch track laid on the shoulder alongsid
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectmunicip, bookyear1896
