The Bridgeport evening farmer., 1912-01-19

of the Bureau of Power provide Tor the erection Of a power-house short distance below this reservoir. the va ter being conducted from the big pa- sin by a short tunnel and 1O,260 rect of steel pressure pipe ten feet Tn dlam- eter, then unto the water Wheels. 1ne power here heVeloped VIII aIIlouhI IO 6,150 horse
 After having performed its work in the generation of power, the water will pass from the tail race Of the the with a cover of reinforced concrete six inches in thickness and will not De gain visible until it comes to tenn porary rest in the Fairmont Reser- Voir at the northern base of the Coast Range, 133 miles distant This long stretch of aQueduct forms one or the most difficult portions of the project. For the most part it is consructea high along the mountainsides' built of monolithic concrete eight lnGnes iss the ravages of all time. The d1men- sions of the conduit vary greatly pe- ing determined by the character or the grade, but we may say that the aoueduct on an average for the l5S miles is approximately seven to nine feet deep and from nine to tWelYe feet wide Materials and machinery have been hauled from the railroad to their destination over mountain Where road building has not been practical, electrical railways have been constructed and aerial tramways erected. Mile on mile of the aqueducI IS in tunnel throueh solid rock-hne0 sides, arch and bottom with eight ln- ches of concrete. Deep canyons are nine to eleven feet in diameter rest ing upon piers of concrete The An telope Valley is crossed in this man.
 The Fairmont Reservoir has been constructed by closing the outlet of a natural basin at the northern foot 1f nt the Coast Range. This reservoir VII VII rapuIate the flow of water through re Elizabeth tunnel and will provide eainst the cleaning and repa ring or the long line of aqueduct to the north
 A Great Feature.
 As the greatest single feature of the aqueduct project, the Elizabeth tun- mel. which provides the waters path beneath the Sierra Madres. or Coast Range is remarkable not only for the daring with which it was conceived but also for the rapidity with which the plans for it's excavation were con sl1nmated. The total length is 26 S7O Eliza beth is the second longest water tunnel in the United States. It was driven in the short space of 1,24o working days. With height or of twelve feet nine inches it is large enough for the operation of single trs rk trolley system It is consloeT- and conduit from the Fairmont to the Haiwee reservoir as are all the tun> nels south of it. which is due to the fact that at certain times in the day large quantities of water will be re- ouired in power development. This tunneI has ca pa city of 5o0O0 miners inches or 648 100000 gallons every tvven+y-four hours.
 The Elizabeth tunnel will deliver it's precious burden on the south side Of the Coast Range: thence it will he carried two and one-half miles through conduit and tunnel high along the rim Of the Son Francisquito Canyon to be shot down S90 feet on San Francisouito power plant. Af- ter leaving the tail race of this pow er-house the water will be carried seven miles and dropped 578 feet upon the turbines of a second power plant Having been made to perform its la hor at that point. the water will flow into the Dry Canyon reservoir which has the function of regulating back to the normal flow the huctua ting discharges of the power plants. From here the water will continue south ward for sixteen miles through con duit tunnel and steel siphons to 2 third power-house after which 1t will enn erge from the aoue6uct outlet. four miles west of Ferr ando. and come to rest in the San Ferns ndo reservoir. Tn the distance between the Eliza beth tunnel and this imDounding ha- sin the soueduct is designed to gen crate 100 900 horse power of electrical energy within a maximum distance of