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FIRST STREET PEDESTRIAN IMPROVEMENTS PS&E RFP NO.: 10-110 Dan Helt, PE, PLS Survey Manager/Project Engineer Project Role: Survey/Mapping Lead Mr. Helt is experienced in both civil engineering and land surveying. He has designed and prepared both small and large municipal, commercial, and residential grading and drainage plans, as well as utility plans and project associated public improvement plans. Mr. Helt has prepared a variety of hydrology and hydraulic documents for review of analysis and compliance with codes and standards. He has prepared and reviewed specifications, calculations and other basis of design documents. Mr. Helt has performed field boundary and topographic surveys, as well as construction staking, certification and monitoring, and ALTA/ACSM surveys. He has considerable experience researching boundary and chain of title information, and preparing legal descriptions. EXPERIENCE Shell Beach Road Streetscape, City of Pismo Beach, Pismo Beach, CA. Project Surveyor responsible for providing survey services in support of the design of a "total street' reconstruction of 18 blocks of Shell Beach Road. The project entails incorporating a new Class 1 bikeway along an existing Caltrans right-of- way. In addition, the project aims to replace aging utilities.The project will incorporate new way -finding and streetscape enhancements including pavement enhancements at crosswalks and intersections, full ADA compliance, street furniture and landscape improvements, incorporating LID techniques. Riverside Dr. near Zoo Dr. Bridge over LA River, City of Los Angeles BOE, Los Angeles, CA. Project Surveyor responsible for field surveys and topographic mapping. The goal of the project was to correct existing geometrical design deficiencies, address seismic vulnerabilities, improve pedestrian and bicycle travel, and preserve the historic character of the bridge. The project also included the addition of a Class I bicycle undercrossingto link eastern and western segments of the LA River bike trail. Tetra Tech provided final environmental documentation and processing, hydraulic analysis,100% PS&E, and design support during right-of-way and construction phases. San Francisco ADA Ramps, Pacific Gas and Electric (PG&E), San Francisco, CA. Project Manager and Engineer of Record responsible for overseeing land surveying services in support of the ongoing work that PG&E is undertaking where they intend to repair and replace all of the existing medium pressure natural gas infrastructure. The City has required that PG&E upgrade the intersections that are affected by the natural gas line construction work to insure they are ADA compliant. Tetra Tech has performed right-of-way research, monument research, topographic survey and construction survey for a total of 284 ramps on 204 different corners at 70 intersections. Bonita School Road Bridge Replacement Survey, Santa Barbara County Public Works, Santa Maria, CA. Survey Manager. Mr. Helt was responsible for overseeing control, aerial, and topographic survey work for the replacement of the Bonita School Road Bridge. Tetra Tech set 22 ground control targets, and tied those points to the Santa Maria Valley Control Network. Analytical aerotriangulation and stereo compilation was used for density control and to create both planimetric and terrain data. The terrain data was then used to generate 1-foot contours. Additionally, Tetra Tech performed a ground survey to supplement the aerial acquired topography, in order to collect additional data of features not readily visible from the air. The Digital Terrain Model of the ground and aerial surveys were combined and an AutoCAD Civil 3D file containing all data was produced. Caruthers Park Stormwater and Urban Runoff Capture Project, City of Bellflower, Bellflower, CA. Survey Manager. Mr. Helt directed survey services for this Caltrans funded stormwater capture project. Tetra Tech prepared a Project Engineering Study Report RESUMES 25Ke- 47