Base Mapping Sample Clauses
The Base Mapping clause defines the foundational set of data, information, or geographic representations that serve as the reference point for a project or agreement. In practice, this clause specifies which maps, datasets, or spatial references are considered authoritative and how updates or changes to these base materials are managed throughout the project. By establishing a clear and agreed-upon baseline, the clause ensures consistency, reduces disputes over data accuracy, and provides a common framework for all parties to work from.
Base Mapping. The City will provide base mapping for the project based on a ground topographic survey, including utilities, existing right-of-way (highway boundary lines), existing easements, approximate property lines, reputed owner names and addresses and existing contours at 0.25 foot intervals. The Consultant will be responsible for:
Base Mapping. The field data will be reduced and the design survey base map will be completed. A surface will be created and contours shown in the design survey. The
Base Mapping. Based on the findings from previous tasks, we will develop the base map for the design of the project. We will do this by incorporating the topographic survey, boundary mapping, utility information, record drawings, atlas maps, archeologic investigations, habitat mapping, and other applicable information in developing precise locations and alignments for the proposed improvements and facilities.
Base Mapping. Import COCS tax lot linework into base map. Generate Civil3D surface model(s) representing existing surface conditions in each section. Consultant shall use a combination of survey data including break lines, features, and spot locations to develop the surface model. • CAD base map and 3D surface model.
Base Mapping. SEI will prepare a base map of the project area using field survey collected, as-builts, CAD files provided by the City and utility information from the landfill. This base map will show existing property lines, topography, utilities and existing surface improvements. Task 1.3 – Construction Documents: SEI will prepare the design, specifications and construction documents for the new drainage pipe. These plans are anticipated to include:
1. Cover Sheet
2. Legend, Index & Notes
3. Plan & Profile Sheets (20-scale) – installation of drainage pipe by slope pinning
4. Add-Alternate – Installation drainage pipe by burying.
5. Detail Sheet(s) This proposal assumes that the plans will be submitted to the City at the 30%, 60% and 90% stage for review and comment.
Task 1.4 Drainage Memo: SEI will perform a drainage analysis of the site to determine the peak runoff of the landfill site at closeout for the 100-year storm event using current NOAA 14 rainfall. The drainage analysis will also include storm drain and perimeter drainage swale sizing in support of the construction plans.
Task 1.5 Engineers Opinion of Probable Cost: SEI will prepare an itemized opinion of probable cost for the project. This will include separate options for either burying the pipe or pinning the pipe to the landfill slope.
Base Mapping. Consultant shall create a base map to support the development of alternatives for each of the project locations, corridors, and surrounding areas. Because detailed engineering design is not included as part of this feasibility study, topographic survey and right of way retracement is not included. Use of existing databases such as the City of Bend’s GIS data, aerial imagery, LIDAR data, and field verification are all be acceptable methods, subject to final confirmation between the Consultant and the City. Field verification will consist of one (1) crew for up to three (3) days. Field verification may include establishing control and confirming information included in the existing databases. Consultant shall use the Oregon Utility Notification Center to submit requests for utility locate maps for the project area. The locations of underground, surface and overhead utilities shall be inventoried for the alternative’s analysis and feasibility study portion of this scope of work.
Base Mapping. All spatial information is registered to the Terrain Resource Inventory Mapping (TRIM), North American Datum (NAD) 83 base using the ▇▇▇▇▇▇ projection. Inventory data has been prepared using the ARC/INFO™ Geographic Information System (GIS). Use of GIS ensures that spatial relationships between the various inventory attributes are maintained throughout the analysis process. One example is existing roads and streams have been buffered to provide specific area reductions from the THLB. Another example is the classification of THLB vs. non-THLB productive land base. Forest on the non- THLB productive land base is not available for harvesting but can contribute to forest cover objectives for non-timber resources (depending on its structural state).
Base Mapping generate Digital Elevation Model (DEM) from the elevation data, create contour lines, digitize surface features, process aerial images, integrate utility data ensuring accurate representation in final existing conditions map.
a. Project Base Map, Existing Conditions • Temporary slope easements and construction easements are not anticipated and all improvements are assumed to be within current City right-of-way. • No subsurface utility investigation is included for utilities or potential conflict areas, it is assumed all utilities are as evident in the field with invert elevations collected with GPS equipment. • All property acquisition, negotiations, and agreements will be prepared or completed by the City. • Title report and cost are excluded.
Base Mapping. The “Project Area” of coverage for this site consists of strip mapping running along the existing levee beginning at the northwesterly termination point at the City of San Mateo, continuing southerly along the existing levee to the southwesterly termination point. The lateral limits of the strip will generally include the water, or toe of levee on the outboard side, and on the inboard side, the private property, the adjacent street and respective improvements. The mapping will also show the Mariner’s Point Golf Center on East Third Avenue. There are some additional areas of coverage as shown on Figure 1.
Figure 1. Limits of Base Mapping shown in Shaded Region
1. Research current subdivision mapping, benchmarks and records of survey for the project area.
2. Locate City monuments (+/-47) as shown on the above historical record mapping and survey their locations utilizing GPS and field survey methods. This data will be used to determine the property lines within the project area.
3. Locate enough monuments to reconstruct the City boundary and easement lines along the levee.
4. Locate historic survey points set for the current City photo base maps.
5. Coordinate the mapping to the earlier mapping utilizing the same horizontal control points as appropriate.
6. Locate City bench marks and confirm vertical data.
7. Mapping will be at 40 Scale with photogrammetric sections at 50-feet and 1-foot contour interval. 8. Vertical datum will be NAVD 88, horizontal datum will be State Plane.
Base Mapping. With the aerial topography, utility research, and site reconnaissance data, KWC will prepare base mapping that will be used as the background for all designs prepared for the project. ▇▇▇ ▇▇▇▇▇▇▇▇▇ will be responsible for putting together the base mapping and will coordinate additional field surveying, if necessary, to pick up additional features that may be beneficial to show on the base mapping. Once completed, the base mapping will be sent to the design team for use in proceeding with preliminary design.