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November 7, 2001 <br />Mr. John Powell <br />City Engineer <br />City of Lino Lakes <br />600 Town Center Parkway <br />Lino Lakes, MN 55014-1182 <br />APR �r Zvi <br />04 <br />....!1/0 Hemlock L..m <br />$hilt• 301 <br />,s nemmlis, hit. <br />1,3',` <br />7:•I :6;3.424.5505 <br />ill). 764.4 2.1.588? <br />hI .. F lnurkandagan.co <br />.t\w Ion itanaapit.comE <br />RE; Pheasant Hilts Preserve 12th Addition <br />Dear Mr. Powell: <br />This is in response to your letter dated October 30, 2001, regarding your request for <br />additional engineering information for the above reference project. <br />1.,2_, and 3. <br />W :d�.sscus end the bridge issue with Mr. Dave Conkdof Minnesota <br />Department :*ansp_ortation He indica "s IT'Ar bridges for this <br />situation are generally EIS, . RI. 1`00 -foot span pre - stressed <br />concrete beams, betwe.eir4Vinc cs a inches deep, n 9.-inch thick <br />slab with alp epth of approximately 56inchcs owthc top of the <br />profile totite ottom of the beam, two piers - each spaced '' Ot .et. apart, <br />airid''of approximately 24 feet. <br />Guardrails and curb will be installed. The bottom of the bridge will be at <br />an elevation of 888.6 which is one foot above the 100 -year elevation <br />(887.6)Ntand 4.9 feet above the OHWL (883.7). <br />4_ No disturbance to the water area will occur due to bridge construction <br />other than that as noted on the DNR Protected Waters Permit dated <br />September 12, 2001. <br />5. The bridge will be crowned at the center and drain to catch basins located <br />at each end of the bridge in the street. The catch basins will discharge to <br />NURP ponds located above the 100 -year elevation (887.6) and then to <br />wetlands through skimmers and control structures. <br />6. The loading of the bridge will be designed for construction vehicles and <br />materials to be carried across the bridge. <br />7. No wetlands are being impacted. The bridge length will extend to abovd& <br />the O11WL elevation. <br />• <br />LOUCKS <br />a/Th -,x. <br />yt1.H11:.1 ►NIIIt� <br />So . It:I.11 <br />