It's the Toronto marathon today. Here's the road closures you need to know

Road closures mean nightmare on Toronto roads Between the Toronto Marathon, construction and shut downs on some public transit routes, traffic is expected to be congested this weekend.

Drivers in Toronto may have to navigate multiple road closures this weekend as a result of construction, special events and filming.

Here’s what you need to know:

Cherry Street

Cherry Street is closed south of Polson Pier due to maintenance on the Ship Channel Lift Bridge.

Drivers are being asked to use Unwin Avenue to access Port of Toronto and Cherry Beach.

Lake Shore Boulevard

On Friday, Lake Shore Boulevard will be reduced to two lanes westbound near the Yonge Street off-ramp for road restoration. This will take place between 9 a.m. and 3 p.m.

Until mid-June crews will be replacing a fence near New Brunswick Way and British Columbia Road, meaning that Lake Shore Boulevard will be reduced to two westbound lanes in the area. The closures are expected to impact drivers between 6:30 a.m. and 1:30 p.m. on weekdays.

On May 4 between 6 a.m. and 4 p.m., driving restrictions will take place at the intersection of Lake Shore Boulevard and Bay Street for road restoration following the installation of a gas main.

A section of Bay Street will be closed between Richmond and Adelaide streets on Saturday between 7 a.m. and 3 p.m.

Gardiner Expressway:

Starting Sunday, one additional westbound lane on the Gardiner Expressway will be closed overnight between Dowling Avenue and Riverside Drive for the installation of a security fence.

The closure will last until June 14 and impact drivers between 11 p.m. and 5 a.m. daily, Sundays to Thursdays.

On evenings when there is a big event at Scotiabank Arena, Rogers Centre, BMO Field or the Budweiser Stage, the lane closure will begin at midnight.

Toronto Marathon

Multiple lane closures will be in effect on Sunday, May 5, due to the race. Roads will reopen in phases as the marathon progresses. Here are some of the major roads impacted:

The City of Toronto has a full map of the route on their website.

Etobicoke Khalsa Day parade:

Multiple road closures will also go into effect in Etobicoke on Sunday, between 10 a.m. and 8 p.m., for the parade.

According to the city, these are the major roads impacted:

Other weekend closures:

Officials are urging drivers to plan accordingly and allow for additional commuting time.