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I need a GIS specialist to build a detailed topographic map of my project site and then delineate the 50-year and 100-year floodplain limits. The study area covers more than 5 square miles, so the workflow must handle a fairly large dataset without sacrificing accuracy. Here’s what I expect: • Create a clean, georeferenced elevation surface in ArcGIS Pro (or ArcMap) from the data I will supply. • Run a floodplain analysis that clearly distinguishes the 50-year and 100-year boundaries, with all assumptions and parameters documented. • Supply final deliverables as an editable ArcGIS project with layer files, a printable PDF map at 1” = 400’ scale, and accompanying metadata that explains methods, coordinate system, and source data. I’ll review the work based on: – Visual accuracy of contours and flood limits when spot-checked on screen. – Consistency between model settings and the written methodology. – Ability to load the geodatabase without broken links. Turnaround time and any additional tools you plan to use (e.g., HEC-RAS, QGIS, Python) are up to you; just outline them in your response. Let me know if you need clarification on the datasets I’ll provide.
Project ID: 40662763
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82 freelancers are bidding on average $486 USD for this job

Hi There! I’m an expert in ArcGIS floodplain mapping with 9+ years of experience, delivering accurate, editable GIS projects with clear methodology and reliable geospatial data. Here’s how I can help: 1. Build and georeference the elevation surface in ArcGIS Pro. 2. Delineate and distinguish 50-year and 100-year floodplain limits. 3. Document assumptions, parameters, coordinate system, and source data. 4. Deliver the editable ArcGIS project, geodatabase, layer files, metadata, and 1”=400’ PDF map. 5. Use Python or HEC-RAS where appropriate for validation and analysis. Could you share the elevation and supporting datasets so I can confirm the optimal workflow?
$500 USD in 7 days
7.2
7.2

Hi, I can build the elevation surface, generate contours, and delineate the 50-year and 100-year limits in a documented ArcGIS workflow, with outputs organized for easy review and reuse. With more than 10 years in GIS and remote sensing, including work at IWMI, I routinely handle large spatial datasets, geodatabases, cartography, and Python-based processing for defensible map products. Please share the source elevation and hydrology data, and I will confirm the coordinate system and any model inputs needed before I begin. Best regards, Sujeewa GISPromo IT Solutions
$500 USD in 5 days
7.2
7.2

Dear Employer I want to introdure myself and my team. I have master degree in GIS and Cartography. I graduated from AGH (Poland) and IFNTUOG (Ukraine). Additionally, I would like to share that two years ago, I founded a company which has now grown to a team of 40+ professionals. Our company specializes in projects related to Telecommunications, Geographic Information Systems (GIS), Cartography, Building Information Modeling (BIM), and related fields. For our work, we utilize a variety of tools including Surfer (Golden Software), ArcGIS (ESRI), QGIS, MapInfo, PNI, GISFO, 3eye, Google Earth, Revit, Adobe Photoshop, among others. We did a lot of projects in Italy that were mostly connected to telecommunications, but it always means a deep analysis by using Google Maps, Google Earth, Apple maps and some other resources. We can give you one or more (if it's needed) our specialist who can support you with your project. Also I can do it by myself. Your project is very interesting. Looking forward to your response. Best regards, Michael Zaiets
$1,000 USD in 7 days
6.6
6.6

I propose using my GIS expertise for a detailed topographic map and floodplain delineation for your 5+ square mile project site. The approach includes creating a georeferenced elevation surface, conducting floodplain analysis to demarcate 50-year and 100-year flood boundaries, providing editable ArcGIS project files, a printable PDF map at a scale of 1” = 400’, and detailed metadata. I will ensure precision, accuracy, and transparency in the analysis, incorporating tools like HEC-RAS, QGIS, or Python as needed. Timelines will be diligently met, with a focus on visual accuracy, consistency, and structure for easy geodatabase integration. Let's collaborate to meet your geospatial needs effectively.
$675 USD in 5 days
6.3
6.3

Hello, ARCGIS FLOODPLAIN MAPPING & ANALYSIS SPECIALIST {{{ I HAVE CREATED SIMILAR BEFORE AND I CAN SHOW YOU }}} I have carefully reviewed your requirements for detailed topographic mapping and 50-year/100-year floodplain delineation. I have 10+ years of experience with GIS and geospatial workflows and can handle large datasets while maintaining accuracy and clean project structure. I can prepare the georeferenced elevation surface, generate and clearly distinguish the 50-year and 100-year floodplain limits, document all assumptions and model parameters, and deliver a fully editable ArcGIS project with geodatabase, layer files, metadata, and the required 1" = 400' PDF map. Depending on the supplied datasets, I can use ArcGIS Pro with HEC-RAS and/or Python where appropriate to ensure a reproducible and well-documented workflow. I WILL PROVIDE 2 YEARS FREE ONGOING SUPPORT AND COMPLETE SOURCE CODE/PROJECT FILES. WE WILL WORK WITH AGILE METHODOLOGY AND MAINTAIN CLEAR PROGRESS THROUGHOUT THE PROJECT. I eagerly await your positive response. Thanks
$450 USD in 4 days
6.2
6.2

Hi there, I’m a GIS specialist with experience in GIS analysis, mapping, cartography, spatial data processing, and topographic mapping. I work with both ArcMap/ArcGIS and QGIS and can handle large datasets while keeping the final maps accurate, clean, and properly structured. For this project, I can work with your supplied elevation and GIS data, prepare the topographic surface, create the required floodplain boundaries, and deliver a well-organized, editable GIS project along with the final map and supporting data. I’m also comfortable working with different coordinate systems, geodatabases, raster/vector data, and cartographic layouts. I’d be happy to review the datasets you provide and discuss the best workflow for the project. We can discuss more details via chat. Best regards, Laurentiu
$575 USD in 15 days
6.2
6.2

Hello, I am interested in your project and can assist with the GIS processing, topographic mapping, terrain analysis, and floodplain delineation. I understand that the project covers more than 5 square miles and requires a clean, georeferenced elevation surface followed by clear 50-year and 100-year floodplain limits. I primarily work with ArcGIS Pro for GIS processing and spatial analysis. Depending on the datasets and the required floodplain methodology, additional tools such as HEC-RAS or Python can be incorporated where appropriate. Before starting, I would review the datasets you provide to confirm their format, coordinate system, vertical datum, resolution, and suitability for the required analysis. I can also provide a clear methodology document so that the model settings and final results are fully traceable and easy for you to review.
$500 USD in 5 days
6.2
6.2

Hello, With my comprehensive background in Computer Science and hands-on experience in a variety of programming languages including Python, I'm confident in my ability to provide the accurate, scalable solution you need for your ARCGIS floodplain mapping and analysis project. Having been responsible for creating high-performance web and mobile applications, RESTful APIs, and conducting detailed database design, performance tuning, and scalability assessments, I bring a high level of technical expertise to every project I undertake. In terms of your specific project requirements, I'm well-versed in working with large datasets, analyzing complex geospatial information, as well as utilizing various tools like HEC-RAS and QGIS - all assets that will prove beneficial in generating the desired topographic map and floodplain analysis you're seeking. My thorough understanding of ArcGIS Pro (and/or ArcMap) is also an important asset for this task. Moreover, as someone who values transparent communication and clean code delivery, you can be assured that all facets of the work - from initial data processing to documenting methods used - will be handled meticulously. I am looking forward to tackling the challenges your project presents. Let's discuss your goals and timeline further! Thanks!
$555 USD in 3 days
5.9
5.9

Hello, I am an experienced GIS specialist with strong skills in ArcGIS Pro, terrain modeling, georeferenced elevation data, and floodplain analysis. I can build the elevation surface, generate accurate 50-year and 100-year floodplain limits, document all assumptions and model parameters, and deliver a fully editable ArcGIS project with geodatabase, layer files, metadata, and a 1" = 400' printable PDF. I can also use HEC-RAS and Python where appropriate for validation and processing. I’ll ensure all data paths remain intact and the methodology matches the final model. I’m ready to review your datasets and get started. Regards, Zafar
$250 USD in 1 day
6.2
6.2

Hello, I understand you are seeking a GIS specialist for the project involving ARCGIS Floodplain Mapping & Analysis. My expertise lies in precisely the type of work required for this project. I have a proven track record in creating detailed topographic maps and accurately delineating floodplain limits using ArcGIS tools. Based on your requirements, I will start by creating a clean, georeferenced elevation surface in ArcGIS Pro from the provided data. I will then conduct a thorough floodplain analysis to clearly define the 50-year and 100-year boundaries, ensuring all assumptions and parameters are meticulously documented. The final deliverables will include an editable ArcGIS project, printable PDF maps, and comprehensive metadata explaining the methodologies and data sources used. I am well-versed in handling large datasets while maintaining accuracy, and I am proficient in tools such as HEC-RAS, QGIS, and Python, which can enhance the analysis process. I am ready to discuss any further details regarding the datasets you will be providing to ensure a seamless workflow. Feel free to open a chat so we can discuss the technical approach and strategies I will implement to meet your project goals effectively. Sincerely, Rajesh
$500 USD in 10 days
5.6
5.6

Leveraging my diverse set of technical skills, I am confident in my ability to deliver exceptional results on your ArcGIS floodplain mapping and analysis project. My specialties in data visualization and Python programming are perfectly suited to handle the large dataset you've described, while also maintaining a high level of accuracy. Furthermore, my expertise extends beyond just the use of ArcGIS Pro and ArcMap. If needed, I can also employ HEC-RAS and QGIS tools to provide comprehensive and well-documented analyses. My fluency in Python will prove particularly valuable in creating the georeferenced elevation surface and efficiently running floodplain analyses which truly distinguish the 50-year and 100-year boundaries--all with highly detailed documentation. To ensure seamless navigation and usability, I will also expertly organize your geodatabase to avoid any broken links. I’m not just offering a one-off project done well—I offer continuity and am open to long-term support should you need it. As a professional who values good communication & efficiency , I guarantee that our collaborative effort will produce not only a visually accurate end project, but one that aligns closely with your needs and preferences. Thank you for considering my services, I look forward to helping you create an informative and effective floodplain map.
$500 USD in 7 days
5.4
5.4

Handling the sheer volume of data for a 5+ square mile area, while keeping the topographic map and floodplain analysis accurate, that is the hard part. I will build the georeferenced elevation surface using the data you supply, likely processing it with ArcGIS Pro tools, specifically the raster interpolation tools, to create a continuous DEM. Then, for the floodplain limits, I will use hydrological modeling techniques within ArcGIS, specifically the hydrology toolbox and potentially the watershed delineation tools, after setting up the necessary hydraulic parameters based on the terrain and any available stream data, so this clearly distinguishes the 50-year and 100-year boundaries. The failure this job is most likely to hit is inaccurate floodplain delineation due to poor hydrological assumptions or processing errors, so I will document every parameter and assumption used in the analysis clearly, also validating results against known high-water marks if available. My track record on here is 100% on time, 100% on budget, 5.0 across 8 reviews, which speaks to the reliability of my approach with these kinds of large geospatial datasets. I will supply the final deliverables as requested: an editable ArcGIS project with layer files, a printable PDF map at 1” = 400’ scale, and accompanying metadata. What is the intended use for the printable PDF map, and are there specific cartographic standards you need to adhere to for that output? I need the elevation data files from you to start.
$622 USD in 21 days
5.2
5.2

Hi, I understand you need a precise, fully georeferenced topographic workflow for a 5+ square-mile site, followed by defensible 50-year and 100-year floodplain delineation with reproducible parameters and documentation. I can build the elevation surface in ArcGIS Pro, process and validate contours, use HEC-RAS/Python where appropriate for hydraulic analysis, and produce clean flood-limit layers with consistent coordinate systems and metadata. I’ll deliver the editable ArcGIS project/geodatabase, layer files, 1" = 400' PDF map, and methodology documentation with all assumptions and source data clearly recorded. I’d be glad to review the supplied datasets and discuss the modeling approach with you.
$500 USD in 7 days
5.3
5.3

Hi, I'm a geologist with a postgraduate degree in GIS and advanced certification in ArcGIS. I'm an expert in cartography and spatial analysis. I possess data processing skills that allow me to perform complex analyses and obtain accurate results. I have experience in land use planning and dissaster risk management. I'm proficient in various software such as ArcGIS Pro, ArcMap, QGIS, Global Mapper, and Google Earth Pro. I have experience using satellite imagery and generating digital elevation models (DEMs) from GPS, LiDAR, and other data sources. I'm an expert in data processing and digitization. If you're interested in my proposal, please write to me to discuss the project details.
$550 USD in 10 days
5.4
5.4

As an accomplished GIS Specialist and a geospatial wizard with over a decade-long experience, I believe I am the perfect fit for your floodplain mapping and analysis project. In the course of my career, I've handled several large-scale projects similar to yours, Garnering expertise in ArcGIS Pro & ArcMap. I can delivery an highly-detailed topographic map of your extensive 5 square miles study area on time and without compromises in accuracy. My skills span across not only Spatial Analysis but also Web Development, and Data Visualization - offering a comprehensive solution package for your project from start to finish. Working with tools such as HEC-RAS, QGIS, Python is an integral part of my workflow – it ensures integrity in the modeling process guaranteeing consistent results. Regarding your final deliverables expectations, rest assured of getting an organized geodatabase without broken links. As a clear communicator, I document every process to ease understanding which will be evident in my accompanying metadata. With your review criteria in sight, impeccable contours and flood limits are keen areas of focus. I've successfully implemented notable geomapping projects like Flood Risk Mapping thereby identifying and mitigating areas prone to floods. My passion lies in optimizing workflows through innovation while enhancing decision-making using reliable data as proof in my Forest Loss Analysis project in Kainji Lake Reserve.
$250 USD in 7 days
5.2
5.2

Dedicated Freelancer Ready to Elevate Your Project for ARCGIS Floodplain Mapping & Analysis. I have a solid background in Data Visualization, Geolocation, ArcGIS, Excel, Python, ArcMap, Geospatial and Cartography & Maps, I bring valuable expertise to your project. I have successfully completed many projects with 100% client satisfaction. Clear and timely communication is my priority. I believe in keeping you informed throughout the project lifecycle. I am available for a discussion at your earliest convenience. Please feel free to contact me to further discuss your project details. Thank you for considering my bid. I am excited about the opportunity to contribute to the success of your project. Please visit my portfolio to check my previous work samples, here - https://www.freelancer.com/u/GraphicsHub2k24?page=portfolio&w=f&ngsw-bypass= Best regards, Muhammad Asim Khan
$250 USD in 1 day
4.2
4.2

As an ambitious and dedicated developer, I've acquired a range of skills that make me well-suited for your GIS project. In particular, my expertise in Python is a valuable asset for handling and analyzing large datasets, which will be key given the substantial scope of your project. Moreover, I have hands-on experience with tools such as HEC-RAS and QGIS that can further enhance the precision and efficiency of your floodplain mapping process. In addition to technical know-how, my experience working on different software projects has honed my eye for detail—something that's crucial when carrying out an analysis as significant as flood limit delineation. I am confident in my ability to ensure visual accuracy, consistency between model settings and methodology, as well as delivering a robust ArcGIS project for your use. Finally, although I am actively seeking internship or junior-level opportunities to gain more real-world experience like this, I always work with the utmost professionalism and dedication in every project I undertake. If chosen, you can trust in my commitment to producing high-quality work that meets and exceeds your expectations.
$499.99 USD in 3 days
4.1
4.1

Your need for precise, large-scale floodplain delineation mirrors a recent project where I successfully mapped flood extents for a watershed exceeding 7 square miles, using similar hydrological modeling techniques within ArcGIS Pro to ensure accurate boundary identification and deliverable quality. My approach will involve leveraging your provided elevation data to construct a high-resolution DEM in ArcGIS Pro. Hydrological analysis will then be performed using the Spatial Analyst extension, specifically employing the Watershed toolset and stream network derivation to establish flow paths. Floodplain boundaries will be generated through a combination of rainfall-runoff modeling and hydraulic simulations, with all parameters and assumptions meticulously documented for transparency. How will the accuracy of the provided elevation data be validated before commencing the analysis? Would you prefer the final deliverable to include detailed cross-sections illustrating the floodplain extents at key transects? I’m available to discuss your project further at your convenience.
$616 USD in 21 days
4.1
4.1

I am a GIS and remote sensing specialist with over 10 years of experience. I have done several similar works and I am an expert in using Arcgis pro and other remote sensing softwares. I will do a good work for you
$400 USD in 7 days
4.2
4.2

Nice to meet you , It is a pleasure to communicate with you. My name is Anthony Muñoz, I am the lead engineer for DSPro IT agency and I would like to offer you my professional services. I have more than 10 years of working as a Backend and Software developer, I have successfully completed numerous jobs similar to yours therefore, and after carefully reading the requirements of your project, I consider this job to be suitable to my area of knowledge and skills. I would love to work together to make this project a reality. I greatly appreciate the time provided and I remain pending for any questions or comments. Feel free to contact me. Greetings
$484 USD in 7 days
3.8
3.8

Phoenix, United States
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