Work

Work Prinsenweg

From Thursday, September 11 through Thursday, October 2, work will be performed on the sidewalk and bike path (waterfront) along Prinsenweg. The sidewalk tiles will be replaced. During the work, the sidewalk and bike path will be closed. On the bike path on the other side of the Prinsenweg there will be two-way traffic. 

Work on Vinkel Avenue

Work will take place on Vinkel Avenue from Monday, August 25, through Friday, October 17. Vinkel Avenue will become a residential street. This means:           

• That through traffic is not allowed;
• That pedestrians may use the entire width of the road and play;
• That the speed limit is 15km per hour;
• That parking is allowed only in the designated parking spaces. This results in all paving being at one level and no sidewalks and sidewalk elevations.

The roadway will be closed to traffic for each phase. A maximum of 40 meters in length will be broken up per phase. The Bosrand entrance will be open to local traffic. Traffic wardens will ensure that this entrance is not used as a shortcut. In order to keep the homes accessible to residents and emergency services after 4 p.m., driving plates will be laid on the unpaved sections of Vinkelaan every day after 4 p.m.
 

Work on sewer and streets Hofcampweg and Burmanlaan.

Hofcamp Road and Burman Avenue are being repaved. The streets are aging and need sewer maintenance, among other things. The work will last from September 2025 through February 2026. Learn more on the project page. 

Work on Hoflaan and Herenweg

Work on Hof Avenue and Herenweg will begin on Monday, Aug. 25, 2025. The work is expected to be completed by the end of February 2026. The work will be carried out in phases to minimize inconvenience. Work will start at Herenweg 1 and will be carried out towards the junction with Hoflaan. For all information, please see the project page Renewal of the street work on Hoflaan and Herenweg. 

Work on traffic circles Lange Kerkdam and Stoeplaan

At the end of September, the municipality will replace the top layer of the traffic circle Lange Kerkdam - Van Oldenbarneveltweg - Prinsenweg and the traffic circle Stoeplaan - Wittenburgerweg. The closures will be from 30-09-2025 on 1-10-2025, 1 October 2025 on 2 October 2025 and 2-10-2025 on 3-10-2025 each time from 20:00 hours to 06:00 hours in the morning. The road will then be completely closed to all traffic.

N14: Sijtwendetunnel closures; September 2025

Between September 2025 and February 2026, we are replacing the fire extinguishing pipes in the Park Tunnel and Spoortunnel, parts of the Sijtwendetunnel (N14) in Leidschendam-Voorburg. Planned regular maintenance will also take place. Where possible, work will be combined.

For the work, 1 or more tubes of the Sijtwendetunnel will be closed overnight. Please allow for detours and extra travel time of up to 10 minutes. During the day, all tunnels will be open.

Closures September 2025

Sijtwendetunnel (Spoortunnel, Parktunnel, Vliettunnel) closed towards A4 from 

• Monday, September 1, 9 p.m. to Tuesday, September 2, 05 a.m. 

Sijtwendetunnel (Vliettunnel, Parktunnel, Spoortunnel) closed towards Wassenaar (N44) from 

• Tuesday, September 2, 9 p.m. to Wednesday, September 3, 5 a.m. 

Vliettunnel and Parktunnel closed towards Wassenaar (N44)

• from Tuesday, September 9, 9 p.m. to Wednesday, September 10, 05 a.m.
• from Tuesday, September 16, 10 p.m. to Wednesday, September 17, 05 a.m. (reserve)
• from Thursday, Sept. 25, 9 p.m. to Friday, Sept. 26, 5 a.m.

Rail tunnel and Park tunnel closed towards A4

• from Thursday, Sept. 25, 9 p.m. to Friday, Sept. 26, 5 a.m.

Sijtwendetunnel (Vliettunnel, Parktunnel, Spoortunnel) closed in both directions

• from Friday, Sept. 26, 9 p.m. to Saturday, Sept. 27, 5 a.m.

Vliettunnel and Parktunnel closed towards Wassenaar (N44) for delivery of materials

• Thursday, September 4, from 9 p.m. to 00 a.m.
• Thursday, September 11, from 9 p.m. to 00 a.m.
• Thursday, September 18, from 9 p.m. to 00 a.m.
• Tuesday, September 23, from 9 p.m. to 00 a.m.