Water-management tasks and water engineering are particularly significant in Hamburg due to its geographic location on the tidal River Elbe, its port, the low-lying marsh areas and many bodies of water that are facing growing pressure from increasing urbanisation. LEHNE ing. focuses specially on handling technical engineering tasks in

• new construction and increasing the height of flood-defence systems and dikes on rivers and inland waterways
• dismantling of old dikes
• permit and planning-approval procedures in accordance with laws pertaining to water and waterways
• development of waterways, natural or with walls along the river banks
• surface drainage during the development of residential and commercial properties
• new builds, extension of retention basins, retention spaces, seepage reservoirs, culverts
• water-management planning

You will find a few selected references here.