You will get Delineated stream and catchment/watershed and all watershed statistics
Top Rated

Project details
I am a civil engineer with experience in building hydraulic river models for river regulation, riverbank protection, dam, bridges and culvert modeling, as well as floodplain mapping. I have started building models in HEC-RAS for flood plain mapping while still in college getting bachelor’s degree then later on got into QgiS and HEC-HMS hydrology and watershed management as a first step towards effective water management and continued doing it later on while on masters and after employment. I have been working on all stages of the project, from conceptual studies to detailed design.
I am a dedicated professional and will be presenting all reports as instructed by the employer. I encourage regular communication and I am always willing to take an extra mile to get the work done.
I am a dedicated professional and will be presenting all reports as instructed by the employer. I encourage regular communication and I am always willing to take an extra mile to get the work done.
File Format
DWG, JPG, PDFWhat's included
| Service Tiers |
Starter
$200
|
Standard
$400
|
Advanced
$600
|
|---|---|---|---|
| Delivery Time | 2 days | 4 days | 10 days |
Number of Revisions | 0 | 1 | 2 |
Number of Diagrams | 2 | 3 | 4 |
3D Modeling | - | - | - |
Source Files | - | - |
Optional add-ons
You can add these on the next page.
Fast Delivery
+$50 - $100
Additional Revision
+$100Frequently asked questions
6 reviews
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PP
Peter P.
May 9, 2026
Drainage Design Support
Marko has been excellent to work with and I hope to continue working with him on future projects.
PP
Peter P.
Dec 16, 2024
Simple Drainage Analysis
Marko was very responsive and easy to communicate with. He showed great technical ability in helping us get the answers we needed. The direction we needed to go was not clear at the beginning of the task but Marko asked the right questions to get it done. We will definitely hire Marko again.
TM
Thomas M.
Aug 5, 2024
You will get 1D/2D HEC-RAS river hydraulics model and flood zoning maps
TM
Thomas M.
Jul 9, 2024
You will get 1D/2D HEC-RAS river hydraulics model and flood zoning maps
Marko worked with me through a variety of issues to successfully complete the initial project. Now we are moving ahead to more advanced elements.
MM
Mina M.
Jun 26, 2024
HEC-RAS Modeling (Hydraulic & Hydrological Analysis)
I had the pleasure of working with Marko Cupac, an exceptional Civil Engineer with a robust knowledge base in Hydraulics, Hydrology, GIS, and HEC-RAS Modeling. His expertise extends to bridge design and Scour analysis, coupled with extensive experience with the Departments of Transportation and Environmental Protection in New Jersey, New York, and Pennsylvania. Marko is not only accurate and honest but also thrives under pressure, effectively managing numerous requests from DEP and DOT. A 5-star professional who consistently delivers top-notch results.
About Marko
HEC-RAS & HEC-HMS Specialist | QGIS Expert | Stormwater Management
100%
Job Success
Banja Luka, Bosnia and Herzegovina - 11:58 am local time
I have extensive experience in designing and analyzing rivers, bridges, culverts, and dams, as well as developing floodplain and floodway maps in compliance with FEMA and local standards. I started building HEC-RAS models during my bachelor’s studies and expanded my expertise in QGIS and HEC-HMS during my master’s research and professional work. Over time, I have contributed to all phases of water management projects—from conceptual studies to detailed design.
My experience in water resources management includes:
• Hydraulic modeling of open-channel flow and flood hazard quantification.
• Hydrologic and hydraulic analyses for flood control dams within detailed watershed studies.
• Bridge and culvert hydraulic analyses to determine design flood elevations and required freeboard for lower chord placement.
• Design support for large-scale highway drainage systems.
• Full project involvement in run-of-the-river hydropower plants (>5 MW and several <1 MW), covering dam design, headwater, and design discharge calculations.
Currently, I serve as a Senior Associate on river regulation and flood and drought protection projects. I am a dedicated professional committed to high-quality, transparent work and maintaining clear communication throughout every project.
Areas of expertise include:
• Developing advanced HEC-RAS 1D and 2D hydraulic models using the latest versions, with detailed result visualization and map-based presentation in RAS-Mapper.
• Building and calibrating HEC-HMS hydrologic models to generate accurate runoff hydrographs for ungauged streams and to verify and align them with gauged catchments, ensuring reliable flow inputs for HEC-RAS simulations.
• Performing QGIS-based stream and catchment delineation, watershed preprocessing, and terrain analysis to support hydrologic and hydraulic model setup.
• Conducting floodplain and floodway modeling in accordance with FEMA and local regulatory standards.
• Managing both urban stormwater and rural drainage systems by integrating open-channel and closed-conduit networks, and coupling HEC-RAS 2D surface flow modeling with EPA SWMM for comprehensive stormwater management.
• Experienced in watershed hydrology, hydrologic and water resources modeling, and simulation.
• Proficient in Aquaterra by CGS Labs for river and channel engineering design.
• Experienced in using AutoCAD and Civil 3D on a daily basis to complement hydraulic and hydrologic modeling workflows.
Steps for completing your project
After purchasing the project, send requirements so Marko can start the project.
Delivery time starts when Marko receives requirements from you.
Marko works on your project following the steps below.
Revisions may occur after the delivery date.
Receive project location
After receiving project location I will delineate watershed in QGiS and report all belonging statistics.




