https://chernitsky.net This is my portfolio RSS feed https://chernitsky.net/blog/Sd3-Calculator Design an SD-3 temporary sediment basin using the Georgia Erosion & Sediment Control Manual: required storage (Vs/Vc), principal spillway sizing from Table 6-29.1, emergency spillway checks from Table 6-29.4, and a built-in Example Problem self-check. Sun, 22 Feb 2026 00:00:00 GMT https://chernitsky.net/blog/GA83WFConverter Convert latitude/longitude (WGS84) to Georgia State Plane West (US survey feet) with Civil 3D-ready output and map preview. Sun, 01 Feb 2026 00:00:00 GMT https://chernitsky.net/blog/Circular-Weir-Calculator Circular Weirs for Measuring Flows in Partially Full Pipes Sizing Tool Fri, 23 Jan 2026 00:00:00 GMT https://chernitsky.net/blog/Rip-Rap-Calculator RipRap sizing tool Sun, 28 Dec 2025 00:00:00 GMT https://chernitsky.net/blog/Calculator Calculation methodology, examples and calculator Fri, 26 Dec 2025 00:00:00 GMT https://chernitsky.net/blog/Civil-3D-area-in-acres A small ARX utility that automatically displays object areas in acres directly in the Properties palette, saving time on everyday hydrology workflows. Fri, 26 Dec 2025 00:00:00 GMT