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All Journal Jurnal Talenta Sipil
Sony Susanto
Universitas Kadiri, Kota Kediri-64115, Indonesia
Civil Engineering, Building, Construction & Architecture Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology

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Efektivitas Penampang Drainase Berdasarkan Akumulasi Air Hujan Ruas Jalan yang Rawan Genangan di Jl. Mastrip/Jl. Selomangleng, Kota Kediri Sinta Nur Aini; Sony Susanto
Jurnal Talenta Sipil Vol 9, No 1 (2026): Februari
Publisher : Universitas Batanghari Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/talentasipil.v9i1.1198

Abstract

The Universitas Kadiri area in Kediri City frequently experiences surface water accumulation during heavy rainfall due to insufficient drainage capacity, sedimentation, vegetation growth, and deterioration of channel wall plaster. These conditions indicate the need for an evaluation of drainage channel performance in accommodating rainfall runoff. This study aims to assess the effectiveness of the existing drainage cross-section and to design a more adaptive and efficient channel section. The methods employed include field surveys, hydrological analysis using the Rational Method, and hydraulic analysis based on the Manning equation. The results show that the design discharge of 0.865 m³/s cannot be fully conveyed by the existing channel, which has a capacity of only 0.59 m³/s. The proposed adaptive trapezoidal section, with a bottom width of 0.80 m, height of 0.70 m, and slope of 0.008, increases the channel capacity to 2.15 m³/s, which is 2.49 times greater than the current condition. Economically, the redesign also yields a cost efficiency of up to 47%. Overall, the findings indicate that the proposed channel design is more effective, hydraulically efficient, and suitable for flat-topography areas. Furthermore, it aligns with the principles of the Sustainable Drainage System (SuDS) to support sustainable stormwater management in the Universitas Kadiri area.
Tinjauan Efektivitas Penampang Drainase Akibat Akumulasi Sedimen (Kolmatase) di Kawasan Jalan Selomangleng Afifa Zahra Qurratu’ain; Sony Susanto
Jurnal Talenta Sipil Vol 9, No 1 (2026): Februari
Publisher : Universitas Batanghari Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/talentasipil.v9i1.1200

Abstract

Urban drainage systems often experience performance degradation due to sediment accumulation (colmation), even when channel dimensions comply with design standards. This study aims to evaluate the effectiveness of the drainage cross-section affected by colmation in the Selomangleng Road area, Kediri City, and to assess the potential of an additional infiltration system as a supporting solution. The research employed a quantitative–analytical approach using hydraulic analysis based on the Manning equation to compare flow capacity under design and existing (colmated) conditions. The results indicate that channel capacity decreased from 0.62 m³/s under design conditions to 0.26 m³/s under existing conditions, resulting in a capacity loss of 0.36 m³/s and a cross-sectional effectiveness of approximately 42%. As a supplementary analysis, an infiltration trench system was designed along a total length of 350 m on both sides of the channel. With a total infiltration area of 350 m² and alluvial soil permeability of 1 × 10⁻⁵ m/s, the system provides an infiltration discharge of 0.0035 m³/s and an effective storage volume of 73.5 m³. The findings demonstrate that colmation is the primary factor reducing drainage performance, while the infiltration trench functions as a complementary solution to attenuate peak discharge and delay runoff when combined with regular channel maintenance.
Co-Authors Afifa Zahra Qurratu’ain Sinta Nur Aini