The Transport Department urged motorists to drive carefully, pay special attention to traffic and transport arrangements and allow more travelling time.
It said the MTR Corporation’s rail and bus services were operating normally, but the MTR’s bus services would be suspended by 9.40am.
The Transport Department also announced the suspension of ferry services, including between Cheung Chau and Central, Central and Mui Wo, Ping Chau and Central, Central and Yung Shue Wan, Central and Sok Kwu Wan, and Ma Wan and Central and Tsuen Wan.
The Transport Department said all lanes of Gillies Avenue South between Wuhu Street and Baker Court were closed to traffic because of a threat posed by an overhanging crane.
It said it had lowered the speed limit on the Hong Kong-Zhuhai-Macao Bridge to 50 kilometres per hour (kmh), from 100 kmh.
The middle lanes of Stonecutters Bridge are closed and only the fast and slow lanes are in use, but the speed limit is 50 kmh. The speed limit on the Lantau Link has also been reduced to 50 kmh.
The High Speed Rail service between Hong Kong West Kowloon and the mainland is suspended.
KMB and LWB said all daytime routes were suspended – but limited services would be provided on Route S1 and Route S64.