1) A Professional Land Surveyor (PLS) shall oversee all surveys. 2) Drones may only be used for general land topographic DTM modeling. The Digital terrain data shall be collected in the field and modeled so that any test point elevation would be within 1/3 of the contour interval over 90% of the DTM area. For paved areas, the test point elevation shall be within 1/5 of the contour interval. A minimum of 10 test points shall be made for any project. There shall not be less than one test point for every one-quarter area of area within a project. 3) The Contractor shall provide Digger’s Hotline confirmations for all areas marked. If utility system maps are provided by a utility, the Contractor shall provide copies of the mapping. Madison Gas & Electric and Alliant Energy shall be required to field mark all their utilities. The Contractor shall also include Madison Gas & Electric or Alliant digital system maps for all of the surveys as part of the deliverables. All utilities shall be included in the topographic map. 4) The survey data shall be based on existing field conditions encountered by the Contractor. The Contractor shall conduct the site survey of sufficient detail to prepare complete mapping of all existing salient features, improvements, vegetation, utilities and surface elevations. 5) Shots on at least two section corners, to which the plat is tied, must be provided. Observed NAVD 88 (1991) adjustment) elevations and horizontal control can be obtained from the City of Madison Tie Sheets filed at the Dane County Surveyor’s Office. The City of Madison shall provide the control information upon request. 6) When an as-built is requested, the surveyor shall receive a pdf and/or, if available, a digital CAD file copy of the design plans for comparison purposes. The digital file(s) shall be used to obtain critical as-built elevations verifying key elevations of pond cross sections, overflows, berms, all outlet structures inverts. The data being collected is to compare that design grades are met. 7) When a boundary and land title information is required: a) Prepare a Plat of Survey compliant the property boundary compliant with Chapter A-E 7 of the Wisconsin Administrative Code. The Professional Land Surveyor shall locate all existing monumentation necessary to determine the boundary of the property. The boundary shall be fully monumented at all changes in direction in the field and boundary map prepared of the property encompassing the project. b) Review and confirm with the title work the inclusion of applicable and current land tile documents noted on the City’s Official Map https://cityofmadison.maps.arcgis.com/apps/mapviewer/index.html?webmap=fb9c839c50f349 89b56834c66412af3c c) Show all land and title encumbrances per the title report and City of Madison records within project limits.
