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All Journal Journal of Geomatics Engineering, Technology, and Science
Feri Fadlin
Program studi Teknologi Rekayasa Geomatika dan Survei, Politeknik Pertanian Negeri Samarinda, Kota Samarinda
Aerospace Engineering Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Engineering Environmental Science

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Identifikasi Kondisi Drainase Berbasis WebGIS di Jalan Pangeran Antasari Kota Samarinda Fernando Dwio Junianto; Shabri Indra Suryalfihra; Feri Fadlin; A. Arifin Itsnani SM
Journal of Geomatics Engineering, Technology, and Science Vol. 4 No. 1 (2025): September 2025
Publisher : Geomatics Technology Study Program, Politeknik Pertanian Negeri Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51967/gets.v4i1.59

Abstract

This study aims to identify the condition of drainage channels located along Jalan Pangeran Antasari in Samarinda City and to present the data interactively through a WebGIS platform. Drainage issues in this area often cause waterlogging and flooding during heavy rainfall. Therefore, accurate and accessible mapping of drainage conditions is crucial. The research method involved physical measurements of drainage dimensions, such as top width, bottom width, channel height, and concrete width. The collected data were processed using ArcGIS Pro software by digitizing the drainage paths in the form of polylines, which were then published through ArcGIS Online in a dashboard format. Field documentation was also supported by geo-tagged photos that were converted into coordinate points on the map. The findings of the study revealed that several drainage segments have inadequate dimensions to accommodate stormwater during heavy rain, indicating the need for improvement or normalization. The developed WebGIS successfully presents spatial and descriptive information about the drainage conditions in an interactive format, making it a valuable reference for technical evaluation and drainage management planning in the area
Pemetaan Batimetri dan Karakteristik Morfologi Dasar di Sungai Manggar Sekitar Jembatan Dua Manggar Kecamatan Balikpapan Timur Kota Balikpapan sebagai Indikasi Potensi Gerusan Lokal Muhammad Fajar Dharu Kusuma; Radik Khairil Insanu; Feri Fadlin; Nia Kurniadin
Journal of Geomatics Engineering, Technology, and Science Vol. 4 No. 2 (2026): March 2026
Publisher : Geomatics Technology Study Program, Politeknik Pertanian Negeri Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51967/gets.v4i2.66

Abstract

Manggar River is part of the Manggar Kecil watershed in Balikpapan City, covering an area of 24.07 km² and emptying into the Makassar Strait. The river is actively traversed by various types of watercraft near Jembatan Dua Manggar (Manggar Second Bridge), yet no bathymetric data have been available to support navigational safety, and no prior study has examined the riverbed morphology or potential local scour around this bridge. This study aimed to map the underwater topography of the Manggar River around Jembatan Dua Manggar through hydrographic survey, to interpret its morphological characteristics, and to identify potential scour or sedimentation zones that may affect navigational safety and infrastructure. Data collection was conducted on 8–9 March 2024, comprising bathymetric sounding using a Map Sounder at 5-second intervals, 25-hour tidal observation, and riparian topographic measurement using a Comnav T300 geodetic GPS. Survey lines were planned in cross and longitudinal patterns with 30-meter intervals. Depth data were corrected against the Mean Sea Level (MSL) value of 1.320 m derived from tidal observations. Processing yielded 1,036 depth points, ranging from a shallowest depth of -1.1616 m at the downstream section to a deepest of -15.442 m upstream, with an average correction difference of 1.15 m. River bed topography varies from gentle slopes in the downstream reach (average 2–3 m) to a scour-hole (trough) formation upstream reaching a maximum depth of 15.442 m approximately 80 m from the bridge, indicating a potential local-scour zone that warrants periodic monitoring. A bathymetric map with 1-m minor and 5-m major contour intervals was produced using AutoCAD Civil 3D and ArcGIS 10.8 software, and can serve as baseline data for future monitoring of riverbed morphology changes and local-scour evaluation around Jembatan Dua Manggar.
Co-Authors A. Arifin Itsnani SM Fernando Dwio Junianto Muhammad Fajar Dharu Kusuma Nia Kurniadin Radik Khairil Insanu Shabri Indra Suryalfihra