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HomeMy WebLinkAboutROAD LETTER - 00-00045 - Allen, Joe - 17 W 1500 N, 1412 S 2000 W - Annexation & RezoneFp UplZ � 280 P.O. Box /JJQCQ0/ exlQjy 12 North Street Rexburg, Idaho 83440 R Phone(208)359-3020 STATE OF IDAHO Fax (208) 359.3022 98Osse a -mail rexburg@srv.net January 24,2001 Mr. Gary Richardson JRW Associates 49 Professional Plaza Rexburg, Idaho 83440 RE: New Subdivision Plat at Southwest comer of 2"d East St. (Salem Rd.) and Cemetery Rd. Dear Gary, As per our telephone conversation, I researched our Transportation Plan to find out what the Right-of- way widths for 2"d East St. and Cemetery Rd. are supposed to be Attached are the approved typical sections for these two streets. 2"a East St. is designated a Major Arterial with a Bike Path (Typical Section # 8) and has a 125 ft. wide right of way. Therefore the new plat should show a 62.5 ft. wide '/2 street right of way width for this street. The actual construction of the street sidewalk, landscaped strip, curb and gutter, paving, etc. will be done in various phases. The existing new curb and gutter could probably be used for the first phase. The back of sidewalk would probably be located at the street right of way line and the area in between the sidewalk and curb and gutter would be a wide landscaped strip for a while. It is my understanding from John Millar that the irrigation ditch along the west side of 2"d East St. is supposed to be put into a 48" culvert. The flowline of this ditch is so high that the top of a 48" pipe will be up near the surface of the future widened roadway. The strength of the pipe becomes a critical element at shallow cover depths, therefore the pipe will probably have to be a Class 5 reinforced concrete pipe to have enough strength to handle the concentrated loads near the surface of the future roadway. Cemetery Rd. is designated as a Major Residential Collector or Business Street (See Typical Section # 4). The new plat should show a 39.5 ft. wide r/z street right of way width for this street.. The asphalt surface of the existing road is quite a bit higher than the surrounding ground elevation. Are you going to put the new curb and gutter and sidewalk high enough to match the existing asphalt surface or will you be taking out the existing road and rebuilding the street at a lower elevation that more nearly matches the existing ground? If you are going to try to use the existing road, your engineer/survey crew will need to get elevations along the surface of the existing road so the new curb and gutter can be designed to match it. They will also need to get some test hole information to determine what the depths of the layers of the existing Granular Borrow, 3/4" Aggregate Base and Asphalt Plantmix Surface are. The City's long range plans for water and sanitary sewer call for a 12" waterline and also a 12" sanitary sewer line going to the west along Cemetery Road. Attached are Shts 5 & 6 of the plans for the recent street widening work along 2"d East St. at Cemetery Road. These plans show the locations of the "12"stubouts" for the existing water and sanitary sewer lines. We need to get the Annexation Agreement for the subject development started right away. It will cover such things as the different "Phases of Construction" that you propose for the widening of 2"d East St. and the construction/widening of Cemetery Rd. It would also cover City participation in the extra size (8" vs 12") requirements for the waterline and sanitary sewer lines along Cemetery Rd. It would also cover the property owner reimbursement to the City (at $10 per R. per each utility line) for the city -installed water and sanitary sewer lines along 2nd East St. As soon as you get some preliminary Street & Utility Improvement Drawings for the subject development, we would like to sit down with you and discuss your ideas regarding the phasing of the street, water, sanitary sewer, stone drain and irrigation facilities. We would like to meet with you at your earliest convenience so our reviews and the lack of an Annexation Agreement don't hold up the planned construction of the development. Very truly yours, JOSEPH A. LAIRD, RE CITY ENGINEER § `k § �( ( ,\ .A \ w)§ �7< § .2 ) \ ! , . § | >\ . ; - ; § .$ U ! � `k § .A \ § .2 ) >\ - ; § U ! . , ) § .( . .. �