Drainage analysis by applying the rational method on flood discharge.

The construction of the Kuningan East Ring Road is the construction of a new road that aims to relieve congestion by dividing continuous traffic on the 7.2 KM Cirebon-Kuningan road. To anticipate the occurrence of puddles on the road, road facilities in the form of drainage are needed. This study was carried out in four stages, namely site surveys, problem identification, data collection, and data analysis. Data obtained were in the form of primary data and secondary data which were then analyzed according to the needs of the study. For the hydrological analysis, rainfall data were acquired from two rainfall stations, namely Lame Dam Station in Ciniru Village and Linggarjati Station, for a span of 10 years from 2012 to 2021. Calculation of the maximum rainfall area applied the Algebraic Average Method, with obtained average rainfall for the last 10 years being 978 mm. Furthermore, the analysis of rainfall intensity using the Mononobe Equation attained result of 84.199 mm/hour. The analysis of flood discharge using the Rational Method obtained a design flood discharge of 0.187 m³. Meanwhile, the channel planning and cross section used U-Ditch DS 3 with dimensions of 1.10 m x 1.25 m and a channel capacity of 0.580 m³/second. Based on the calculation results, it can be concluded that the channel capacity is greater than the design flood discharge. Thus, the drainage planning requirements have been met. [ABSTRACT FROM AUTHOR]