Stormwater Drainage and Land Reclamation for Urban Development (HABITAT, 1991, 94 p.)

(introduction...)

FOREWORD

INTRODUCTION

A. Background

B. Purpose of the report

C. Scope of the report

I. URBANIZATION AND THE DEMAND FOR URBAN LAND

A. Current trends in urban growth

B. Increases in land prices and the use of marginal land

C. Specific problems of the urban poor

D. Urban health in marginal settlements

E. Conclusions

II. POTENTIAL IMPACTS OF STORMWATER DRAINAGE AND LAND RECLAMATION PROJECTS

A. Urban land-use planning

B. Urban health

C. Socioeconomic benefits

III. TECHNICAL OPTIONS FOR STORMWATER DRAINAGE AND LAND RECLAMATION

A. Stormwater management

B. Drainage system components

C. Storage: detention and retention

D. Drainage system design

E. Land reclamation options

F. Land stabilization

IV. MAINTENANCE

A. Maintenance objectives

B. The maintenance programme

C. Review of maintenance

D. Institutional arrangements for maintenance

V. PROJECT APPRAISAL

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A. Technical appraisal

B. Social and health impact appraisal

C. Economic and financial appraisal

D. Institutional appraisal

VI. CONCLUSIONS AND RECOMMENDATIONS

BIBLIOGRAPHY

Annex I: STORMWATER DRAINAGE DESIGN PROCEDURES

A. INTRODUCTION

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A.1 Drainage systems

A.2 Aims and principles

B. PLANNING

B.1 General

B.2 Multiple use

B.3 Natural channels

B.4 Transfer of problems

B.5 Storage and reserves

C. DESIGN CRITERIA

C.1 Procedures for design and analysis

C.2 Hydrological models

C.3 Data

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C.3.1 Rainfall data

C.3.2 Runoff data

C.4 Standards of performance

C.4.1 Introduction

C.4.2 Selection of average recurrence intervals

C.5 Basic design criteria

C.5.1 Basis of design

C.5.2 Calculation of stormwater runoff

C.5.3 Design recurrence intervals

C.5.4 Calculation of capacity of stormwater drains

C.5.5 Drainage reserves

D. FLOOD ESTIMATION

D.1 General

D.2 Modified rational method

D.3 Design hydrograph

D.4 Partial areas effect

E. CHANNEL DESIGN

E.1 General

E.2 Flow computation

E.3 Lined channels

E.4 Vegetated channels

E.5 Natural channels

E.6 Unkerbed streets

E.7 Design calculations

F. DRAINAGE DESIGN FOR URBAN STREETS AND PIPELINES

F.1 General

F.2 Gutter capacity

F.3 Drainage inlets

F.4 Pipe flow

F.5 Pipe system design

G. PUMPING CAPACITIES AND STORAGE REQUIREMENTS IN POLDERS

G.1 Principles of drainage in a polder

G.2 Pumping capacity versus storage requirement