Arizona republican., 1910-12-28


 These roads have been laid by a number of contractors, including John son X Shea of Riverside Rife X Cave of Los Angeles. the Star Cement com pany of Riverside and A. l.. Winters of Riverside, Cal, as well as others.
 We find the cost of the materials used in road construction in River side to be as follows: Rock, s1.35 per cubic yard, delivered at the work: 1 asphaltum oil, $40 per barrel of 42 l gallons; cement. $40 per barrel; | common labor, g. and teams $450 per ! day.
 Riverside owns its own rock quar- ! rfes. and where contractors desire il, | will furnish rock at a specified price. | It also owns it's own oil storage and ' heating plants, the oil being care fully tested by a chemist, and fur | nished to the contractors at exact ! cost. A photograph of this oil plant | is attached hereto.
 Both the asphalt concrete and oil | macadam roads and pavements in Riverside are easily cut when neces- sary and easily repaired. so that the | patches are hardly observable.
 In the city of Redlands We found | that great progress has been made | in street paving; over thirty miles of | paved streets being included within the city limits. In their business section they use the same pavement | as Riverside. which has been sue cessfully laid by the Fairchild, Gill more X Whitton company and the Barber Asphalt company under simi- lar specifications to those in River side They also have many miles of oil macadam streets, and both pave ments have proved most satisfactory to them.
 In their rock base. in many of their pavements, they have used crushed river boulders in place of limestone. although they do not consider it quite as satisfactory as limestone
 We were particularly cautioned by the city engineer of Redlands to be sure and install cement gutters in connection with our pavement. We were also shown some very interest ing samples of alley construction out of concrete which seemed most prac- tical and to be operating most sat isfactDrly.
 In the city of Pasadena we found the same interest in good roads. illus trated by many miles of splendid pavements. Nitrified brick has been used there in the districts where heavy traffic existed. but the princi- pal pavement used is a sheet asphalt pavement laid on concrete base un- der similar specifications to those of Riverside This pavement. in use. has proved most satisfactory. has been laid by various contractors. and when laid on a four-inch concrete base is costing about S1.53 per square yard. The cost of materials in Pasadena is about the same as 1t is in Riverside
 In Pasadena they are using as rock base for their roads crushed river boulders In addition to the concrete asphalt pavements. Pasa- dena has laid some exceptionally good pavements made of monolithic as phaltic concrete: this is a mixture five inches in thickness of asphsltum and crushed rock. with a large per centage of rock exposed in the wear ing surface This pavement has been laid for several years. shows very lit tie wear. costs nothing to maintain and on d gravelly soil has held up exceptionally well. IL cost <l25 Der square yard. IL is easily repaired, showing the patch but slightly.
 This pavement, which is on d resi- dence street. was laid by the Fair child Gilmore Whitton company, and has the appearance and many of the qualities of bitulithic pavement
 Many miles of oil macadam road are now used throughout the resi- dence district of Pasadena. The rock base varies from one to six inches in width. The oil macadam road, on q siN-inch base. costs Sl per , square yard. These roads. however. are thoroughly permanent in char acter; on one of them $500 tons of rock has been recently hauled and shows no serious wear.
 In the city of Los Angeles We saw many blocks of asphalt pavement on base, which after seven years of heavy traffic have proven satis- factory. We also saw this same pavement under construction by the Fairchild- Gilmore Whitton company, . and some excellent oil macadam roads under construction by the Los An geles highway commission. specified \ tiOns of which are hereto attached. The specifications of this road being ! built by the highway commission are almost identical with the work being done on Central avenue boulevard
 Los Angeles county. recognizing the value of good roads. is spending B, ,00O, 900 on this class of roads.
 In the city of Fl Paso. Texas. we found that during the last five eaIs they have constructed over seventeen miles of paved streets and that the 4 taxpayers generally feel that the paving of the streets has been an eX- I cellent investment When the paving began in Fl Paso five years age there was keen competition over various i types Of paving. vitrified brSk, sheet ( asphalt and what is known as tre bitulithic pavement, laid under the ( Bros. patent, being in com ( petition. It was finally decided tO { av the bitulithic pavement.