Work is due to start next week on the next phase of the £76 million scheme to help reduce flooding in Kendal.
Environment Agency representatives and Andidrain will begin surveying culverts around the Stock Beck area of the town from Monday.
Traffic management will be in place to allow the work to be carried out.
Blockages within the culverts, like tree roots and silt will be removed and Penrith firm Atlantic Geomatics will also carry out topographic surveys to record the level and sizes of pipes and outlets along the Stock Beck culverts.
The £76 million Flood Risk Management Scheme will, when completed, reduce the risk of flooding to 1,480 homes and 1,100 local businesses across the River Kent catchment.
Stewart Mounsey, flood risk manager for Cumbria, said: “Our team of specialists will start work on July 26 and activity is likely to take several weeks.
“Each survey will generally be undertaken quickly, taking around an hour in the majority of locations, so impacts are expected to be minimal.
“Once we complete the surveys we will use the information to design, repair, replace and/or improve sections of the culvert system to maximise flood flow capacity and reduce flood risk – we aim to deliver these works in 2022.
“We want to keep impacts to the local community minimal and have informed all landowners and those who live nearby if any work will be taking place.
“There will be some traffic management measures needed to ensure our contractors and the public are safe while we access the manholes and notices of diversion routes will be in place if required.”
