Agenda - Council - 11/12/1985 - Laserfiche WebLink

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! Hakanson Anderson Associates, Inc. I 222 Mr,tlroc Street, 612/42 7-586(; engincer.~ and Eugene J. Hakemon, P.E. James M. Winter, R.L.S. Lawrence G. Ko~hak, P.E. P~er R. Raatikka, P.E. I I November 7, 1985 I I I I Honorable Mayor and City Council City of Ramsey 15153 Nowthen Blvd. Ramsey, MN 55303 Re: Estimate of Cost to expand the Primary Vertical Control System to include the northern portions of the City and to determine critical water elevations Dear Council Members: I I I I I As requested at your October 22, 1985 council meeting, we have estimated the cost to expand the primary vertical control system as shown on the attached map. The existing primary network is shown in green on the map and the proposed primary network is shown in red. The proposed network is approximately 27 miles in length. We propose to establish bench marks at intervals not to exceed 1000 feet. The bench marks would be set using the most permanent structures available along the route such as building founda- tions, concrete steps, and if necessary spikes in power poles. The U.S. Geological Survey Datum would be used and the accuracy of the bench marks would be plus or minus 0.05 times the square root of the distance in miles which is considered excellent for vertical control systems for city bench marks. I I The Ramsey Bench Mark Book would be updated to include the eleva- tions, locations and descriptions of the new bench marks. We propose to furnish the services as described above for a cost not to exceed $6,000.00. I civil · municipal · planning · soils · land surveying · landscape architecture