03-07-1977 Planning Packet - Laserfiche WebLink

Home Browse Search

iOiaMMpi/ al until after en between actory for the at the Planning the Planning a for Planning a qualified e necessary leins resulting cs. cation filed as the o^ner safety inspcc with the le new application. oper site plans* port. I ■' .-"'V ly EngiriGGring phone: (612)471-7010 P. O. BOX 318. 4312 SHORELINE DRIVE. SPRING PARK. MINN. 55384 February 22, 1977 Mr. John F, Bonner III 1500 Da in Tower 527 Marquette Avenue Minneapolis* Minnesota 55402 ^ '"Vf p 'V' Iir nWi! :•! 1 'J* I ! ' ■■k 9 I ■ t • I ‘ ’ i >«• r I 19 M ViU-AGii iii OS<0^':O Dear Mr. Bonner: Upon the request of Mr. Lee Primus I inspected the Ski-Tonka ski area, which is located in Orono, Minnesota, to determine if the equipment met safety requirements. On February 1, 1977 you fur nished me with five pages of ANSI Regulations that the City of Orono had furnished you. The standard is American National Standard Safety Requirements for Aerial Passenger Tramways B77.1-1973. A copy of the five pages are attached to this report. On February 3, 1977, I inspected and tested the tow equipment to determine if the equipment met the safety requirement*- of the ANSI standards. All tows were tested with the exception of #10 which was inoperable. On February 11, 1977, I met with Al Olson, Orono City Inspector, at Ski-Tonka to jointly inspect the area and to demon strate to him how the tows were inspected. At the time of my inspection it was noted that the ski tows were not equipped with backstop brakes as required in para. 2.2.5.4.1. The purpose of these brakes is to prevent the ski ropes from being pulled backwards if the ski tow should stop for some reason. The ski tow rope was physically pulled backwards to determine the amount of force required to reverse the direction of travel of the rope. In my opinion the tow rope would not, notwithstanding the absence of brakes, reverse direction appreciably. Any such reversal would likely only result in a slow reverse movement. So long as this is the case, the reverse movement would not present a great hazard to a skier using the tow. Para. 2.2.5.4.2 of the ANSI standards requires that: "Unless an unloaded tow operating at maximum speed will stop in 25 feet or less an automatic brake shall be provided to assure this stopping distance." J I Mr. Jc All tc had a an aul The tc ments safety (saf el tion < to st< this ] Warnir the rc the si (they form V OTHER AlthoL area h and ur and ad a good quate repair In con the Sk inspec tions: ooerat NOTE :