Skip to main content

Flooding Incidence and Drainage Network Analysis in Bonny Island, Nigeria | Chapter 09 | Emerging Issues in Science and Technology Vol. 2

The incidence of occasional flooding of an estate, a tank farm in Bonny Island, Niger Delta was investigated. The study was carried out to identify the remote causes of flooding and in turn proffer a solution. Detail field investigation involved identification of thirty one road side drains of rectangular cross-section; measurement of drains inverts (spot heights) at selected locations yielded estimates of longitudinal slopes (0.000416 – 0.0074 m/m), a case of very mild slopes. The invert profiles of 15 road side drains indicated a case of inconsistent slopes, a mix of positive and negative slopes over short intervals, the observation accounts for siltation and ponding in the drains. The redesigns of the existing drains were actualized via the use of MODRAIN code, based on the principle of best hydraulic section with input data options for rectangular or trapezoidal channels; constant or variable bottom slopes and runoff coefficient(s). A comparison of the existing and newly designed drains with respect to cross-sectional areas confirmed that 80% of the existing drains are oversized, in what is captioned “Bigger existing drains”. Apparently, the issue of occasional flooding of the Estate cannot be all blamed on inadequate drain size but on existing bottom slopes (very mild slopes) of the drains.

Author(s) Details

Ify L. Nwaogazie
Department of Civil and Environmental Engineering, University of Port Harcourt, Nigeria.

Levi O. Uba
Chattel Associates (Nig) Limited, 14 Old Aba Road by Woji Junction, Port Harcourt, Nigeria.

Charles C. Dike
Department of Civil and Environmental Engineering, University of Port Harcourt, Nigeria.

View Book: http://bp.bookpi.org/index.php/bpi/catalog/book/121
Labels:

Comments

Post a Comment

Popular posts from this blog

Greening Regional Airports: A Vision for Carbon Neutral Infrastructure | Chapter 12 | Contemporary Perspective on Science, Technology and Research Vol. 3

 This study provides an overview of the energy demand of a regional airport, divided into individual time horizons. The electrification of aircraft systems raises the question of whether airports will be among the largest electricity consumers in our infrastructure in the future. Sustainability and especially emission reductions are significant challenges for airports that are currently being addressed. The Clean Sky 2 project GENESIS addresses the environmental sustainability of hybrid-electric 50-passenger aircraft systems in a life cycle perspective to support the development of a technology roadmap for the transition to sustainable and competitive electric aircraft systems. This article originates from the GENESIS research and describes various options for ground power supply at a regional airport. Potential solutions for airport infrastructure with a short (2030), medium (2040), and long (2050) time horizon are proposed. In addition to the environmental and conservation benefi...
Post a Comment
Read more

Alkali Element Modification of Glucose Molecules as a Method to Dissolve Cancer Cells | Chapter 12 | New Visions in Medicine and Medical Science Vol. 4

  The present study highlights about alkali element modification of glucose molecules as a method to dissolve cancer cells. The central regulation of the mechanisms governing cell proliferation has little effect on cancer cells. Cancer cells are entirely independent of the central command and divide and proliferate on their own, making it challenging to activate their response mechanism. Precisely, this is the reason why they are at risk to the health of humans and/or any biological entities. Instead of trying to reconnect the central command of the growth control mechanism to cancer cells that are already out of the range, we present a method of using the cancer cell’s own irresponsive and uncontrolled growth mechanism to their disadvantage and destroy the cancer cells. We found that this is achievable in an atomic/molecular level study of the glucose molecule, which is the primary food source used for growth and energy generation by all cells in the body, including the cancer cel...
Post a Comment
Read more

A Multi-factorial Analysis of the Factors Affecting Elementary Students’ Interest in Physical Education Considering Students’ Ethnicity and Gender | Chapter 5 | New Visions in Medicine and Medical Science Vol. 4

  Background: Student attitudes toward education are of great concern to educators around the world. Fostering Student’s positive interest in physical education is of great concern in academia. More importantly, the rationale as to why one would maintain a positive interest in physical education is of concern. These topics have been widely researched. However, the comparison of gender and ethnicity as it relates to students’ interest in physical education is a novel investigation. The purpose of this study was to ascertain the relationship between elementary student’s interest in physical education considering gender, ethnicity, curricular and teacher influences, and student’s perceived competency. Methods: Participants included 99 fifth-grade elementary school students (62 males, 37 females). Participant selection was conducted by utilizing 6 intact physical education classes from a single culturally diverse elementary school. Racial and ethnic distribution for fifth graders c...
Post a Comment
Read more