09-25-2002 Council Agenda - Laserfiche WebLink

Home Browse Search

vai V4 LLt 10: U4 1LL 6517390846 PROTERRA_-DESSIGN Whams WILLIAMS ENERGY SERVICES INTER- OFFICE CORRESPONDENCE )ATE: September 3, 2002 O: Don Jensen rR0M: Andrew Livingston WBJECT: 280:M068 The Preserve Tract 3318 Ramsey County, Minnesota 4FE: 280- 2002 -08978 k reviewer the drawings submitted by Pro Cerra Design Associates, Inc. showing WPL fit-6", 42 -6 ", 84 -12" lines :tossing the subject developtnent has been completed. In particular, the drawings titled "The Preserve Little Canada, Minnesota ", Drawing No's: C2.1, C3.1 C4.1, LI „Land Metro Land Surveying and Engineering Drawings 'Topo and Boundary" and "Preliminary Plat' as well as Williams Pipeline Company (WPL) - Alignment Drawing No's. DMA - 043 -49, and DMA- 043 -49D were evaluated. It was determined -that the NI-6" line in this area belongs to MCI -World Com. The discussions to follow will therefore he limited to the remaining 42 -6" and 44 -12" lines, •Please note: All pipeline engineering station numbers (ESN) stated below pertain to the H4-12" ESN and are scaled from the drawings.' The first area of concern is the proposed Preserve Court road within our pipeline Right of Way and running parallel to our pipelines from pipeline ESN 13479 +02 to ESN 13474 +48. The distance from the edge of pavement to our4 -12 ", which is the closest pipeline to it, varies from 18 feet to 31 feet. Due to the separation between the road and our pipeline and the depth of our line (approximately 3 feet), our line will be out ofthc zone of any additional stress resulting from the road construction. The second area of concern is the proposed Preserve Trail road crossing the pipelines at our pipeline ESN 13470 +00. The proposed depth of cover at the crossing is 4 feet. Analyzing the induced stress due to external loads using.Pisces.it was determined that the proposed road passes all the criteria of API 1102 and is satisfactory. Furthermore; the depth of cover noted above meets WPL minimum requirement as stated in our Encroachment • Guidelines::" The third area of concern is the distance between the pipeline and the proposed dwelling at Block 2, Lot I. The proposed distance is approximately 26 feet from the tt4 -12 "pipeline. D.O-T Part 195 Paragraph 210 specifics a minimum distance of 50 feet between a pipeline and dwelling or a minimum cover of 48 inches if the distance cannot be obtained. Our easement at this point extends to the north property line of tract 3318B approximately 16 feet north of the tt 4 -12 ". While we have no control overthis area since it is outside of our right of way easement it is highly recommended that the placement of the dwelling on this lot be oriented to provide the maximum separation. between it and our pipeline. The final area of concern is the landscaping over the pipeline right of way. WPL Encroachment Guidelines state that no trees orshrubs 3 feet or taller at maturity arc permitted on our right -of -way- This would include the area on the south side of the entrance road to Road ESN 5 +65 and the road crossing at P eserve Trail within the limits of 002