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MCMAHON
<br />TRANSPORTATION ENGINEERS & PLANNERS
<br />March 11, 2015
<br />VIA E-MAIL
<br />Mr. Patrick S. Walther, P.E.
<br />Carter Associates, Inc.
<br />1708 21st Street
<br />Vero Beach, Florida 32960
<br />RE: US -1 at 41st Street Signal Design Plan
<br />McMahon Project No. N15067.0P
<br />Dear Pat:
<br />McMAHON ASSOCIATES, INC.
<br />5500 Village Blvd 1 Suite 103 1 West Palm Beach, FL 33407
<br />p 561-840-8650 1 f 561-840-8590
<br />mcmahonassociates.com
<br />PRINCIPALS
<br />Joseph W. McMahon, P.E.
<br />Joseph J. DeSantis, P.E., PTOE
<br />John S. DePalma
<br />William T. Steffens
<br />Casey A. Moore, P.E.
<br />Gary R. McNaughton, P.E., PTOE
<br />ASSOCIATES
<br />John J. Mitchell, P.E.
<br />Christopher J. Williams, P.E.
<br />R. Trent Ebersole, P.E.
<br />Matthew M. Kozsuch, P.E.
<br />Maureen Chlebek, P.E., PTOE
<br />McMahon Associates, Inc. (McMahon) is pleased to provide this proposal for traffic engineering
<br />services associated with the proposed widening of 41st Street at US -1, in Vero Beach, Florida.
<br />Specifically, this proposal is for services to prepare signal design plans for the intersection of US -1 at
<br />41" Street (Study Intersection).
<br />This proposal is based on the assumption that all project baseline geometry, existing and proposed
<br />right-of-way, topographic, geotechnical, and sub -surface utility exploration (SUE) information
<br />necessary to complete the design will be provided by Carter Associates, Inc.
<br />The existing topography information will include existing features and proposed roadway
<br />improvement information for a minimum distance of 200' in the north, south, west and east direction of
<br />the study intersection. Field survey data, to be provided by Carter Associates, Inc., must include
<br />planimetric survey delivered in CADD format and shall include horizontal location of edges of road,
<br />curbs, gutters, sidewalks, pavement markings, surface features of utilities, signage, existing poles,
<br />landscaping trees and features within the project limits and within all right-of-way. Sufficient data will
<br />be provided to establish roadway crown elevations, roadway slopes, and elevations at the base of any
<br />new mast arm upright.
<br />In order to provide the proper design for the traffic signal supports, subsurface soil information must
<br />be provided by Carter Associates, Inc. Soil borings will be obtained in the field by a Geotechnical
<br />Engineer, at all corners of the study intersection. The geotechnical information will be analyzed, and
<br />the project Geotechnical Engineer will provide a standard report. This information will be utilized for
<br />the design of traffic signal mast arm supports.
<br />McMahon will coordinate with the existing utility owners within the project corridor to receive
<br />information to show the existing utilities on the signali7ation plan, as outlined in the Scope of Work
<br />Corporate Headquarters: Fort Washington, Pennsylvania
<br />Serving the East Coast from 13 offices throughout New England, the Mid -Atlantic, and Florida
<br />
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