The closures had allowed emergency services to gain access to the incident scene. Police said they should be lifted by 7am.
A Police Scotland cordon around the pub will be removed overnight and the area will be cleaned by Glasgow City Council.
The pub will be made secure by the owner.
Police said CCTV coverage of the site is in place 24 hours a day and Community Safety Glasgow will increase its regular patrols of the area.
A spokesman added: "The emergency services and council would like to thank residents and businesses in the area for their continued support since the tragedy happened and the many people who have passed on messages of sympathy."