Motorists are being warned of delays in Watford this week as work takes place.
The first lane closure will be on St Albans road as drainage works take place.
A lane will also be closed on the North Orbital road at the Garston roundabout to A412 St Albans road junction.
Cross Road will be closed at the junction between Paddock Close to the end of the road.
The work takes place tomorrow and Wednesday.
Ringway and Hertfordshire County Council are responsible for the works.