The RBC GranFondo bike event from Vancouver to Whistler is back and we know what that means. It's likely that Vancouver traffic this weekend will be an absolute nightmare all day tomorrow, Saturday, Sept. 7.

Travelling along any part of the race's route will lead to massive delays. Unfortunately, the route is sprawling and not so easy to avoid for drivers in Metro Vancouver. More than 4500 cyclists will be taking part in GranFondo this year. According to GrandFondo's website, drivers between Vancouver and Whistler will be experiencing serious delays on Saturday, Sept. 7 from 5:30 a.m. to 4:30 p.m. and likely beyond as a result of congestion.

Two especially notable pain-points drivers will experience tomorrow will be the Lions Gate Bridge and the Sea to Sky Highway. If you can, avoid them at all costs. If not, do your research and stay out of dodge during closures.

Traffic impacts will be taking place all over Metro Vancouver, along the Sea to Sky Highway, in Squamish, and in Whistler. Metro Vancouver delays will be in place all morning, with some beginning at 3 a.m. and ending at 11 a.m. You can assume impacts will last long after the closures, as well. Here are the areas that will be impacted.

Here's where traffic will be affected in Metro Vancouver

Lions Gate Bridge

Stanley Park Causeway

Stanley Park Dr., Vancouver

Marine Dr., North Vancouver

Marine Dr. and Taylor Way intersection, West Vancouver

Highway 1 eastbound

Cypress Bowl Rd., West Vancouver

Highway 1 westbound at Exit 2

Ferry traffic and Local Horseshoe Bay traffic

Horseshoe Bay at Highway 99 Junction

Highway 99 southbound, West Vancouver

Because the Lion's Gate will be closed to northbound traffic, drivers have been advised to take the Second Narrows, meaning that bridge traffic will be heavy. Sea to Sky impacts will begin as early as 7:15 a.m. and continue until around noon. Here's what you need to know:

Sea to Sky Highway

Highway 99, Porteau Cove Provincial Park

Highway 99, Furry Creek

Highway 99, Britannia Beach

As for Squamish, delays and restrictions will be in place all day, with some lasting until 4:30 p.m and most beginning at 8 a.m.

Squamish

Highway 99, Murrin Lake Park to Squamish

Highway 99, Cleveland Ave. and Loggers Lane

Highway 99, Valley Dr. to Depot Rd.

Highway 99 – Alice Lake Rd. to Function Junction

Last but not least, delays in Whistler will be kicking off around 9 a.m. and ending for the day around 4:30 p.m.

Whistler

Highway 99, Function Junction to Village Gate Blvd.

Highway 99, Southbound Village gate Blvd. to Callaghan valley Rd.

Alta Lake Rd.

Blackcomb Way West

Village Gate Boulevard

Lorimer Rd. and Whistler Way

Whistler Northlands Blvd. at Village Gate

Callaghan Valley Rr.

Bikers are getting fired up for the legendary, scenic ride, while drivers are already pulling their hair out in thoughts about the upcoming traffic.

The GranFondo is now in its 10th year and the 122 k.m. ride along the Sea to Sky Highway is truly something to behold. Sadly, if you’re not on the gruelling bike ride, you’ll be rocked with delays of up to three hours when you’re trying to get from A to B. If you want to get out of the city, go now! If that’s not an option, you might want to stay put. You can keep up to date with all the traffic changes on the GranFondo site.

Also, if you're biking or spectating, we suggest a rain poncho because Vancouver weather this weekend isn't looking ideal. Stay safe out there, drivers and bikers!