Hydrogeomorphology downstream of bridges: one mechanism of channel widening

Channel widening and width-depth ratio increases below bridges reflect adjustments to the magnitude and frequency of water discharges. In areas of changing land use, particularly newly urbanizing areas, such adjustment reflects a specific phase of the hydrologic and geomorphic response to urban development. On the Sungai Anak Ayer Batu in Kuala Lumpur, channel widening, downstream of the Jalan Damansara bridge which constricted flow. occurred when large areas of deeply weathered terrain were cleared for housing development.