Evaluasi Sistem Drainase Kota Pasuruan ( Kasus Penanganan Genangan Di Kec. Bugul Kidul )

Novajanto, Akung (2010) Evaluasi Sistem Drainase Kota Pasuruan ( Kasus Penanganan Genangan Di Kec. Bugul Kidul ). Masters thesis, Institut Teknologi Sepuluh November.

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Abstract

Permasalahan yang sering muncul pada musim penghujan adalah terjadinya genangan atau banjir pada beberapa wilayah Kecamatan Bugul Kidul, Kota Pasuruan. Genangan bisa berlangsung selama 1 jam sampai 2 jam dengan kedalaman 0,1 meter sampai 1,5 meter, dengan luas genangan 245 ha. Permasalahan genangan tersebut bukan hanya karena permasalahan teknis, namun bisa dikarenakan masalah pengelolaan instansi yang bertanggung jawab maupun masalah drainase ditinjau dari lingkungan di daerah studi. RTRW pemerintah daerah dievaluasi berdasarkan arah rencana pembangunan yang diterapkan, di samping masih rendahnya peran serta masyarakat dalam pemeliharaan saluran. Untuk itu, evaluasi akan mencakup bukan hanya masalah teknis, namun juga kelembagaan, lingkungan, ekonomi, serta peran serta masyarakat.

Evaluasi secara teknis dilakukan dengan membandingkan kapasitas saluran eksisting dengan debit rencana. Sementara itu, instansi pengelola sistem drainase juga dievaluasi efektivitas kinerjanya dengan analisis SWOT dan AHP. Analisis juga mencakup kondisi lingkungan yang memengaruhi sistem drainase serta kondisi eksisting berdasarkan RTRW yang ada, serta peran serta masyarakat dalam partisipasinya juga dievaluasi.

Dari perhitungan teknis, menunjukkan sebagian kapasitas saluran yang ada tidak mampu menampung debit limpasan hujan rencana, sehingga dimensi saluran perlu diperlebar. Selain itu, perlu dibuat kolam tampungan air hujan seluas 13,44 ha. Secara institusi, beban pengelolaan drainase hanya ditumpukan pada Bidang Pengairan Dinas PU, sehingga perlu adanya koordinasi antara bidang terkait lainnya. Pada sisi lingkungan, adanya pintu air di Sungai Petung dan drainase primer yang ada mengurangi pengaruh tinggi pasang surut air laut pada drainase yang ada. Analisis terhadap RTRW menunjukkan bahwa 43,89% merupakan lahan permukiman, sedangkan 56,11% berupa lahan terbuka. Untuk meningkatkan keberhasilan pengelolaan drainase, masyarakat perlu diajak berperan aktif dalam menjaga fungsi drainase.

Untuk mengoptimalkan kinerja pengelolaan sistem drainase Kota Pasuruan, disusun strategi dengan melaksanakan evaluasi kinerja penanganan drainase dan menyusun kerja sama antarwilayah terkait, MOU pemanfaatan potensi ekonomi untuk memberikan keuntungan ekonomi dari upaya penanganan genangan yang sinergis antara hulu dan hilir, mengoptimalkan sistem drainase yang ada, kegiatan pembangunan harus berdasarkan RTRW, serta mendorong peningkatan peran masyarakat dalam pemeliharaan lingkungannya dan upaya reboisasi, baik di hulu maupun hilir DAS.
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Inundation or flooding always occurs and becomes a problem in several areas of Bugul Kidul Subdistrict, Pasuruan City, during the rainy season. Inundation can occur for 1 to 2 hours, with a depth of 0.1 to 1.5 meters and an inundated area of 245 ha. The problem is caused not only by technical factors but also by institutional and environmental aspects of the drainage system. The Regional Spatial Plan (RTRW) was evaluated based on the direction of development planning implementation, while community participation in drainage maintenance remains very low. Therefore, this evaluation covered not only technical aspects but also institutional, environmental, economic, and community participation aspects.

The technical aspect was evaluated by comparing the existing drainage capacity with the design discharge. The effectiveness of the institution's performance was evaluated through SWOT and AHP analyses. The analysis also covered environmental conditions that affect the drainage system, as well as community participation in drainage maintenance.

The technical analysis showed that the existing drainage capacity was unable to accommodate the design runoff discharge. Therefore, the drainage dimensions need to be widened, and an additional retention pond with an area of 13.44 ha is also required. The institutional analysis showed that coordination among several institutions involved in drainage system management is needed so that the workload is not placed solely on the Irrigation Division of the Public Works (PU) Department. The environmental analysis showed that the provision of a water gate on the Petung River and the existing primary drainage system can reduce the effect of tidal fluctuations on the existing drainage system. The Regional Spatial Plan (RTRW) analysis showed that 43.89% of the area is designated as residential land, while 56.11% consists of open space. The successful management of the drainage system can be achieved by involving the community in maintaining the drainage function.

The performance of the Pasuruan City drainage system management can be optimized through the development of appropriate strategies. These strategies can be implemented by evaluating drainage management performance and establishing cooperation among related regions. The strategy also includes an MOU on the utilization of economic potential to provide economic benefits through synergistic inundation management between upstream and downstream areas. Optimization of the existing drainage system should also be carried out. Development activities must be based on the RTRW while encouraging community participation in environmental maintenance, as well as reforestation efforts in both the upstream and downstream areas of the watershed.

Item Type:	Thesis (Masters)
Additional Information:	RTL 627.54 Nov e
Uncontrolled Keywords:	Drainase, Evaluasi, Genangan, Strategi, RTRW, drainage,evaluation, inundation, strategy, RTRW.
Subjects:	T Technology > TE Highway engineering. Roads and pavements > TE215 Drainage
Divisions:	Faculty of Civil, Environmental, and Geo Engineering > Environmental Engineering > 25101-(S2) Master Theses
Depositing User:	magang .
Date Deposited:	21 Sep 2026 04:24
Last Modified:	21 Sep 2026 04:24
URI:	http://repository.its.ac.id/id/eprint/144727

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