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� Craig A. Smith & Associates, Inc. SECTION D2 -INNOVATIVE. TECHNOLOGY Engineers • Surveyors • Subsurface Utility Engineering The •CAS Advantage• -Benefits of a Unified Design Process and the Use of 3-D Radar Tomography CAS has the unique capability of providing clients with survey and advanced utility locates for utility design projects. CAS' highly experienced survey crews and utility locating staff with the use of all the latest technology, coordinate closely with project engineers and collect field data with engineering principles and guidelines in mind. The fact that CAS provides such a unified process to design allows for fast tracking of design projects. CAS' unique capability in providing 3-D Radar Tomography scanning provides continuous x,y,z positioning of buried utilities with great accuracy (+/-2inches horizontally and +/-6 inches vertically) along with the associated topographic profile (ground surface elevations). The 3-D Radar Tomography unit is equipped with an array of 17 antennas that "cross communicate" thus allowing for the level of accuracy stated above. Generally, utilities to a buried depth of up to 15 feet can be identified by this technology and all pipe material type can be located, including bends/fittings and offsets. Also, abandoned facilities and non-utility anomalies can be identified that could potentially interfere with design elements. The use of this technology can be especially beneficial for aged utility areas where record drawings are poor or non existent. The implementation of 3-D Radar Tomography (3-D RT) to water main relocation projects as proposed under this contract offers a practical solution to this critical issue. This allows for the generation of very accurate and complete base maps which, in turn, acce lerates the design process delivering 60% design plans at a typical 30% design plan submittal. In addition, this translates to superior final construction plans, greatly reducing the potential for changes orders and delays during construction due to unforeseen conflicts. Each 3-D RT unit scans a 6-foot wide pass. Under ideal conditions (unobstructed clear areas), 5 acres per day can be scanned with a single 3-D Radar Tomography scanning unit. The use of 3-D RT can reduce the need of vacuum excavation by 90% for locating subsurface utilities, thus reducing surface impacts and restoration. 3-D RT is very cost competitive when compared to traditional SUE methods due to the speed of data acquisition, accuracy and processing time. _,. ,.... ,. ·· .--30 Rendering of lhe layers 21045 Commercial Trail, Boca Raton, FL 33486 • Ph: 561-314-4445 • www.craigasmith.com • LB3110