| Show i 4 i i 4 4 r 1 l 1 K a 3 y S 1 S 8 fi t ri c dJ JI t t j hi r I t iI 1 r i I i J if a. a it S 'S SY v i or T J t. t Y r sa 1 v U-v Y r ail I pi J 11 a j n THIS MAMMOTH DRILLING MACHINE is i's being prepared to drill drilla I a 13 foot 13 foot diameter tunnel 33 miles long through a solid rock Drilling has begun on the second tunnel tunnel tun tun- nel net of the Strawberry Aqueduct east of Strawberry Reservoir A ton mechanical mechanical me me- mole arrived at the tunnel site and is drilling the foot 13 Layout Layout Lay Lay- Layout out Tunnel stated A A. A S S. S DAlessandro construction engineer engine r at the Bureau of Reclamation n Field Office in Duchesne Layout Tunnel will extend through the mountain from Water Hollow Creek to Layout Creek a distance of 33 miles S. S A. A HE HEALLY ALLY Y Company of McCook Illinois is constructing the tunnel under contract with the Bureau of tion lion In addition to Layout Tunnel the contract includes Currant Tunnel two diversion di di- version dams and pipelines to divert water water water wa wa- ter from the streams into the Strawberry Straw berry Aqueduct connecting siphons between between between be be- tween the tunnel portals together with access roads into the construction sites This contract amounting to will extend to the Currant Creek Reservoir Reservoir Re site on on Currant Creek The giant mole was in Seattle Washington and shipped here to tobe tobe tobe be assembled at the tunnel site Bob BobI I Healy Company said the drilling machine machine ma ma- chine weighs about tons and is driven dri ven yen by six horsepower motors Two hydraulic grippers braced on the sides of the tunnel hold the machine stationary while a hydraulic ram forces the cutting cutting cut cut- ting head against tho rock After cutting cut ting 41 inches the machine is moved ahead on runners to get gel a new grip and drill again It was necessary to drill about 54 feet of oC tunnel at the outlet portal portal portal por por- tal by conventional methods so that the mule could gel started blurted THE CONVEX shaped CONVEX cutting head of the mole revolves about seven lions liens per minute minu e and contains 32 revolving revel revel- ving cutter bits with a rigid disc cutter mounted in the tile center Cuttings will be caught in revolving buckets and dumped on a conveyor b belt lt for loading in iii muck cars Three trains of 10 muck cars each will be used to remove the cuttings from the tunnel Dust created by bv the drilling op raton on is removed from the cutter head area through a suction line and a scrubber attached to the rear of the mole d A. A w r mountain on Strawberry Reservoir alignment Layout Water Wader Tunnel Drilling u Starts On Strawberry Aqueduct Project A specially built Laser Laser Instrument Instrument ment will direct a laser beam onto a target target tar tar- get in front of the operator This will keep the mole chewing in a straight line THREE SHIFTS will keep the mole working round the clock Each shift will employ 15 to 20 men inside the tunnel and eight to ten men working on the Mr l Ames explained that other than three or cr four key men from Healy Company all the employees used at the tunnel will be local men Carl Prescott Frescott of Kanas is the tunnel Chief inspector of the work for fortHe forthe forthe the Bureau of Reclamation is Larry Rhodes Actual drilling of the tunnel begun June 15 when the mole was assembled and should take about a year to complete Strawberry Aqueduct is a major feature feature feature fea fea- ture of the Central Utah Project being built by the Bureau of Reclamation When completed the mile long aqueduct aque aque- duct will surplus flows from several several sev sev- severa era eral streams on the south flank of the Uinta Mountains l to the enlarged Strawberry Strawberry Straw Straw- berry Reservoir for use along theW the W Wasatch Front |
