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June 25, 2025 / Page 2 of 4 Bella Vista Park / Project #11723.04 City of Sunny Isles Beach Contract Addendum # 05 SURVEY SERVICES Task 106 Specific Purpose Survey KEITH will prepare a Specific Purpose Survey of the site. The survey will show improvements such as buildings, roadways, right-of-way, pavement, sidewalks, traffic striping, walls, fences, surface utilities, Storm and Sanitary structures, and bridge height. The survey will be referenced to the Florida State Plane Coordinate System (NAD83/11) and the National Geodetic Vertical Datum of 1929 (NGVD29). Elevations will be shown at an interval of approximately 50 feet, including intermediate changes in grade. SUBSURFACE UTILITY ENGINEERING (SUE) SERVICES Task 206 Horizontal Designation Services KEITH will horizontally mark any known tone able and non -tone able underground utilities that are represented on as -built plans, above ground appurtenances, and other miscellaneous utility records (to be provided by CLIENT). The limits of the horizontal designation services will include within the red outlined area on the attached drawing. Conductive utilities will be marked on the surface utilizing active geophysical prospecting techniques in conjunction with electromagnetic equipment utilizing passive radio and audio frequencies. Known non-conductive utilities and/or structures will be marked on the surface utilizing Ground Penetrating Radar (GPR), above ground features, professional judgment, utility plats and/or as-builts. This task does not include identifying gravity systems, service laterals, irrigation, or overhead facilities unless specifically requested by the CLIENT and included in the scope of services. Task 206 Location Services KEITH will perform up to four (4) test holes at specific sites requested by the design engineer. Test holes will be utilized to expose utilities to minimize any potential for damage. Test holes performed will be of minimum size (usually V by 1'). Backfill of test holes will be performed utilizing the removed material, if suitable. Areas will be restored back as close as possible to their original condition. Installation of an identifiable above ground marker will be performed at each test hole location. Field markers will consist of a nail and disk in asphalt, or an iron rod and cap with survey stake in grassed areas. Test holes performed in the street will be patched using cold patch. The test hole number and utility will be identified on the ground or on the stake, as appropriate. A test hole summary report will be created providing coordinates, depth of cover, type, size, and material if applicable. There is a four (4) test hole minimum for location services. Subsurface Utility Engineering Conditions and Understandings CLIENT is required by law to contract Sunshine State One Call of Florida forty-eight (48) hours in advance of any CLIENT excavation. KEITH will not access confined spaces. If confined spaces need to be accessed for locating purposes, then the client will be notified, and further arrangements will be made for said access. Additional fees may be applicable. If additional MOT is required beyond the capability of KEITHS standard MOT operations, KEITH will notify the client. Additional requests outside the scope of services, when requested by client and/or client's representative, will be invoiced on an hourly basis. This proposal assumes site access is available and work can be performed between the hours of 7:30 AM and 5:00 PM Monday through Friday. Task 207 Utility Mapping KEITH will perform surveying services to collect the surface markings completed in Task 204 and 205 that mark the underground utilities. Survey of said markings will be based on Real -Time Kinematic (RTK) GPS observations and referenced to the Florida State Plane Coordinate System (NAD83/11) and the North American Vertical Datum of 1988 (NAVD88). Survey of Horizontal Designations will be delivered in a geo-referenced (NAD83/11) AutoCAD file. Survey of Location Services (Test Holes) will be delivered in Excel in PNEZD format. 0 Engineering Inspired Design.