ANALYSIS OF PAVEMENT DRAINAGE SYSTEM: A CASE STUDY ALONG BURE TO INJIBARA TOWN ROAD SECTION IN AMAHRA REGION
Keywords:
adequate drainage, drainage system, pavement damage, poor drainage effect, pavement performanceAbstract
Moisture has significantly influenced the performance of flexible pavements. Effective drainage systems are essential for maintaining pavement integrity by rapidly removing moisture from the subgrade. This study investigates the drainage system of the Bure to Injibara road in Ethiopia's Amhara region, focusing on identifying the root causes of drainage issues and evaluating the quality of the pavement layers. Data were collected from both primary and secondary sources, including site visits and field studies. Descriptive and experimental research methodologies were employed to assess the current drainage conditions and understand the underlying issues. The descriptive analysis centered on the existing pavement drainage system and factors contributing to drainage inefficiencies. Laboratory tests were conducted on selected sections to evaluate the properties of pavement material layers. The Drainage Requirements in Pavement (DRIP) Software was used to assess drainage quality, and the direct runoff for specific rainfall events was estimated using the soil conservation service (SCS) curve number method. The key finding indicates that the cross-slope time-to-drain is rated as good, while the uniform slope time-to-drain is fair. Visual inspections, material sampling, and laboratory investigations identified critical issues, including climatic conditions, inadequate pavement material properties, the absence of inlets, improper disposal of solid waste into the drain, poor construction quality, environmental impacts, topographical challenges, and suboptimal drainage characteristics. Specific drainage problems included low drain capacity, soil accumulation, lack of inlets, improper waste disposal, and malfunctioning crossing culverts. The study recommends adherence to design manuals, regular maintenance schedules, cleaning, and systematic cleaning to enhance drainage performance. Additionally, the redesign and reconstruction of drainage facilities are proposed to mitigate issues related to poor workmanship. The results show that flexible pavements without drainage layers lead to fully saturated subgrades, compromising their performance. Incorporating drainage layers and edge drains significantly reduces subgrade moisture content, thereby enhancing pavement durability and performance.
References
Chatterjee, P. (2018). Review Paper on The Effect of Poor Drainage on Road Pavement. International Journal of Advanced Research in Science and Engineering. 7(10), 110–114. ISSN 2319-8354.
Worku, I. (2010). Road Sector Development and Economic Growth in Ethiopia. Ethiopian Journal of Economics. https://doi.org/10.4314/EJE.V1912.
Zena, K. (2016). Challenges of Urban Drainage System in the Emerging Towns of Ethiopia: The Case Study of Assosa Town. International Journal of Science and Research. 5(7), 301–306. https://doi.org/10.21275/v5i7.ART201685.
Belete, D.A. (2011). Road and Urban Storm Drainage Network Integration in Addis Ababa, Journal of Engineering and Technology Research. 3, 217–225. https://doi.org/10.5897/JETR.9000071
Kumar, P. (2004). Determination of The Optimum Base Characteristics for Pavements. Academic Journals. 1–5. https://doi.org/10.31274/rtd-20200817-92.
Zumrawi, M. (2014). The Impacts of Poor Drainage on Road Performance in Khartoum. International Journal of Multidisciplinary Sciences and Engineering Research. 3(1), 901–907. https://doi.org/10.2175/193864718825159339.
Kalantari, Z. (2013). Road Drainage in Sweden: Current Practice and Suggestions for Adaptation to Climate Change. Journal of Infrastructure Systems. 19(2),147–156. https://doi.org/10.1061/(asce)is.1943-555x.0000119.
Kebede, G. and Adugna, T. (2015). Assessment of the Effect of Urban Road Surface Drainage: A Case Study at Ginjo Guduru Kebele of Jimma Town. International Journal of Science, Technology and Society. 3(4),164–173. https://doi.org/10.11648/j.ijsts.20150304.20.
Ethiopian Roads Authority (ERA). (2013). Pavement Design Manual Volume I: Flexible Pavements. The Federal Democratic Republic of Ethiopia, Ethiopian Roads Authority, Addis Ababa, Ethiopia.
AASHTO. (2001). Standard Specification for Transportation Materials and Methods of Sampling and Testing. Washington, D.C. American Association of State Highway and Transportation Officials.
Zewdu, S. (2018). Detailed Geotechnical and Stability Considerations of Debre Markos-Merawi Asphalt Road Project, Case in Failed Sections of Amanuel-Bure Road. Master's Thesis.
AASHTO. (1993). Guide for Design of Pavement Structures. Washington, DC: American Association of State Highway and Transportation Officials.
Federal Highway Administration (FHWA). (1992). Drainable Pavement Systems, Participant Notebook Publication FHWA-SA-92-008, United States Department of Transportation, Washington, D.C.
David, W., and Charles J. (2004). Determination of the Optimum Base Characteristics for Pavements. Report No. Iowa DOT Project TR-482. Institute for Transportation, IOWA State University, Ames, IOWA.
Barry, D. (1982). Symposium on Aspects of Subsurface Drainage Related to Pavement Design and Performance. Washington, D.C: National Academy of Sciences. ISBN 0309033527.
Hodek, R.J and Mayrberger, T. (2007). Resilient Modulus at The Limits of Gradation and Varying Degrees of Saturation (Report No. RC-1497). Michigan Technological University. Department of Civil and Environmental Engineering.
Sheahan, J., Zdinak, A., and DiMaggio, J. (2016). Assuring Quality in Geotechnical Reporting Documents, (Geotechnical Engineering Circular No. 14, Publication No. FHWA-HIF-17-06). US Department of Transportation, Federal Highway Administration (FHWA).
Ghavami, M. S. M., Hosseini, M. S., Zavattieri, P. D., and Haddock, J. E. (2019). Investigating the Need for Drainage Layers in Flexible Pavements (Joint Transportation Research Program Publication No. FHWA/IN/JTRP-2019/04). Purdue University, West Lafayette, IN. https://doi.org/10.5703/1288284316881.
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