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M MASTELLER & MOLER, INC. 1655 27th Street, Ste. 2, Vero Beach, FL 32960 <br />M — CIVIL ENGINEERS — (772) 567-5300 <br />EXHIBIT A <br />Masteller & Moler, Inc. (MM) has in conjunction with Indian River County Department of Utility <br />Services (IRCDUS) Staff reviewed the Construction Plans for 45th Street to identify locations where <br />IRCDUS has existing water and wastewater mains that are expected to conflict with the proposed <br />locations for stormwater culverts planned for the proposed project. <br />Task H — Land Surveying: As requested by John Boyer, PE of the Indian River County <br />Department of Utilities Services (IRCDUS), we shall have Masteller, Moler & Taylor (MMT) <br />set a stake in the field at all proposed storm culvert crossings along the project route for use <br />by IRCDUS's pot -hole consultant at the locations listed in the Table below. <br />It is understood once potential conflict locations have been staked by MMT, the IRCDUS's <br />pot -hole consultant will pothole the water main / force main such that its depth on NAVD'88 <br />datum can be determined. The IRCDUS pothole consultant, we understand, will not need <br />the services of MMT to obtain the existing utility main elevations on NAVD88 datum. <br />Task I — 45th Street Utility Adjustment Design: Using the above-described information, MM <br />will determine if a vertical conflict exists that will require either the water main or <br />wastewater main to be adjusted. If so, MM will prepare designs for each conflict location to <br />allow for the water main and/or force main to be adjusted to avoid conflict with the <br />proposed stormwater culvert design. It should be noted under MM's "Agreement" for 45th <br />Street conflict resolution for various water services was included in the design scope. As <br />such, that scope of service is not included in this Amendment. As a result of review of the <br />45th Street Construction Plans, it is anticipated that potential conflict locations occur at the <br />following sites: <br />Station <br />Offset <br />Existing IRC Utility <br />Proposed Storm <br />290+08.0 <br />20.2' R <br />8" DIP WM <br />24" RCP <br />290+08.3 <br />20.3' L <br />6" PVC FM <br />24" RCP <br />292+94.5 <br />30.0' L <br />6" PVC FM <br />Type E Inlet <br />292+97.1 <br />9.9' R <br />8" DIP WM <br />18" RCP <br />295+01.4 <br />43.9' L <br />6" PVC FM <br />18" RCP <br />295+02.9 <br />2.9' L <br />8" DIP WM <br />24" RCP <br />297+87.7 <br />4.4' L <br />8" DIP WM <br />24" RCP <br />297+87.7 <br />46.9' L <br />6" PVC FM <br />18" RCP <br />299+37.3 <br />47.1' L <br />6" PVC FM <br />Type E Inlet (Round) <br />299+46.9 <br />4.8' L <br />8" DIP WM <br />24" RCP <br />300+81.0 <br />3.2' L <br />10" DIP WM <br />24" RCP <br />302+96.9 <br />4.1' L <br />10" DIP WM <br />24" RCP <br />304+96.9 <br />32.7' L <br />10" DIP WM <br />24" RCP <br />306+31.7 <br />39.1' L <br />6" PVC WM <br />18" RCP <br />Page 1 of 3 <br />