Performance Assessment of Road Drainage Structures and Proposed Mitigation Measures: The Case of Daleti-Odagodere Gravel Road in Benishangul-Gumuz Region

Kassa, Yifred (2013) Performance Assessment of Road Drainage Structures and Proposed Mitigation Measures: The Case of Daleti-Odagodere Gravel Road in Benishangul-Gumuz Region. Masters thesis, Addis Ababa University.

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Abstract

This thesis presents results of theassessment of drainage structures; performance on DaletiOdagodere gravel road in Benishangul-Gumuz region and proposed mitigation measures. Mitigationmeasureswereproposedbased on ERA drainagedesign manuals2002and 2011 for LowVolumeRoads. Descriptive and exploratory methods of researchwereused for this thesis work. Field visitsof the catchment areathat contributes runoff to thedrainagestructures were madeand the existing problemsweredescribed. The necessarysecondary datafor this researchareland cover map, topographical map, geological map, andfeasibility studyof the road before construction. The primary dataarephotographs that showthe existing drainage structures conditions, flood level marks and information that is gathered fromthe residences and road desk office about the performance of the drainage structures during the rainyseason. Hydrological analysiswascarried out by using Rational and SCS equations.Hydraulic parameters are determined by using Manning’s equation. Structural and hydraulically failures of drainage structures and roadways were investigated. Moreover, stations of the roadwere investigated that require construction of minor drainage structures but not constructed. Suitable mitigation measureswereproposedin order tomake the road and drainagestructures serve for the intended purposessustainably. Newdrainagestructures wereproposed wherethey arelacking in the existing system.

Item Type: Thesis (Masters)
Uncontrolled Keywords: Civil and Environmental Engineering
Subjects: G Geography. Anthropology. Recreation > GE Environmental Sciences
T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TC Hydraulic engineering. Ocean engineering
T Technology > TD Environmental technology. Sanitary engineering
T Technology > TE Highway engineering. Roads and pavements
Divisions: Africana
Depositing User: Andriamparany Edilbert RANOARIVONY
Date Deposited: 04 Jul 2018 10:44
Last Modified: 04 Jul 2018 10:44
URI: http://thesisbank.jhia.ac.ke/id/eprint/6619

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