Studi Evaluasi dan Perencanaan Ulang Sistem Saluran Drainase pada Jalan Blega Kabupaten Bangkalan

Abstract

Review the topographical aspects of Bangkalan Regency, describing the height of the area between 2-100 m above sea level, each sub-district showing varying heights. Some areas are located along the coast with a height of 2-10 m. In planning drainage channels, hydrological analysis is used to obtain the discharge modulus which is calculated based on the amount of rainfall. to get the maximum rainfall is done by analyzing the maximum daily rainfall. From the maximum daily rainfall, the largest rainfall is then selected which is then used as input for the design rainfall calculation. To overcome the flood on Jl. Raya Blega, the author will plan regular drainage, because rainwater and household waste water will flow directly into the drainage on Jl. Raya Blega. So that it often causes flooding, especially when the rainy season comes. Therefore to deal with. Based on the results of the evaluation and planning used in the completion of the "Study of Evaluation and Re-Planning of the Drainage Network System on Bliga Road, Bangkalan Regency", the following conclusions can be drawn: 1. The amount of rainfall for the 10-year return period design is calculated using the log person type method III is 136.56 mm. 2. The design flood discharge value with a return period of 10 years is 3,546 m³/second. 3. There are two channels that need to be normalized and re-planned, namely the Jl. Raya Blega A channel and Jl Raya Blega B. 4. Results of the evaluation of the channel planning with initial dimensions for the Jl. Raya Blega A b : 0.8, h : 1 to b : 0.7, h : 1.4 and Jl. Raya Blega B b : 0.8, h : 1 becomes b : 0.7, h : 1.1.

Keywords: Road, Drainage Re-planning, Blega Bangkalan Regency.