Canada Day festivities underway in Ottawa; fireworks still planned ...

A sea of red and white will cover downtown Ottawa and several parks and venues across the city today, as residents and visitors celebrate Canada's 156th birthday.

The main Canada Day celebration will be held at LeBreton Flats, where more than 30,000 people are expected to attend the daytime show at 11:45 a.m. and the evening show at 8 p.m. The Tim Hortons Canada Day Fireworks display will follow at 10 p.m.

Canadian Heritage says officials are monitoring the smoke conditions to ensure everyone's safety.

"Yes, there are some air quality issues that we are monitoring and we are following all of the guidance from the health and safety partners in the national capital region," Canadian Heritage spokesperson Melanie Brault said.

"We will be adjusting our program as needed."

RELATED: Canada Day weather in Ottawa

"Pack accordingly, maybe your most comfortable running shoes, bring a small umbrella, some sunscreen in case the sun does come out, and I suggest a refillable water container," Brualt said on Newstalk 580 CFRA Saturday morning.

Doors opened at LeBreton Flats at 9 a.m.

"There is so much going on for our celebrations for Canada's birthday," Brault said, adding it has taken three weeks to set up the stage at LeBreton Flats.

Canada Day events will also be held on Parliament Hill, at the National Arts Centre and in Barrhaven, Kanata, Riverside South, Stittsville, Petrie Island and other locations across the city.

Steve Ball, president of the Ottawa-Gatineau Hotel Association tells 580 CFRA that downtown hotels are booked solid.

"The downtown properties are reporting a pretty heavy load tonight, so we're very excited and very optimistic that it's going to be a great evening," he said. "Canada Day is a pretty dependable event for us to draw people from all over the region. We would like to have seen more extension, particularly over the weekend. When Canada Day falls on a Saturday, Sunday it drops off considerably, but Saturday night—solid."

Ottawa police say officers from the RCMP, OPP and 10 municipal police forces will be in Ottawa to assist with security operations.

"That expanded perimeter put some strain on our resources," Acting Supt. Frank D'Aoust said.

Police say there will be an increased police presence throughout the downtown core and at LeBreton Flats this weekend, with a "significant presence" in the ByWard Market, Sandy Hill and Lowertown.

Police are also conducting its 'MarketSafe' initiative in the ByWard Market, with an increased police presence between 8 p.m. and 3 a.m. every night this weekend.

Fireworks expected to go ahead

Speaking on Newstalk 580 CFRA Saturday morning, Brault said the Tim Hortons Canada Day Fireworks should go ahead as planned, but Canadian Heritage is staying in touch with forecasters.

"As of right now, we are going forward with the fireworks," Brault said just before 8 a.m. "Everything is always dependent on the weather. Last-minute decisions sometimes need to be made, but as of this morning, we are hopeful that we're going forward with some fireworks this evening."

Brault said planners look at whether or not there's extreme weather like thunderstorms and heavy winds when deciding whether it's safe to go ahead.

Canada Day flyby

Two CF-18 Hornets performed a flyby over Ottawa on Canada Day at noon.

During the flybys, the aircraft will fly at a minimum altitude of 500 feet above the highest obstacle along their flight path.

OC Transpo

OC Transpo bus and O-Train service is free all day, continuing until 4 a.m. Sunday. STO service in Gatineau is also free.

OC Transo says O-Train Line 1 and buses will operate on a special Canada Day schedule with increased evening frequency.

The O-Train will be running from 6 a.m. to 2 a.m.

Canada Day transit service sign at Rideau Station. July 1, 2023. (Ted Raymond/CTV News Ottawa)

Travelling to LeBreton Flats

OC Transpo and Canadian Heritage says if you are travelling to the LeBreton Flats entrance on Wellington Street, take O-Train Line 1 or a bus to Lyon Station.

Access to Pimisi Station will be restricted through the day. All trains will bypass Pimisi Station between 8 p.m. and 10 p.m.

After the fireworks at LeBreton Flats, westbound O-Train vehicles will bypass Pimisi Station.

Customers travelling westbound to neighbourhoods in Ottawa west, Nepean, Barrhaven, Kanata or Stittsville will be directed to bus service on Albert Street at Booth Street. 

Customers travelling eastbound from LeBreton Flats can board the train at Pimisi Station.

Restricted items

Canadian Heritage says the following items will not be allowed at LeBreton Flats on Canada Day

Bags exceeding 35.5 cm X 30.5 cm X 19 cm Alcohol Firearms Bombs Fireworks

No dogs or pets are allowed at the Canada Day festivities at LeBreton Flats.

Road closures

The city of Ottawa says the following roads will be closed from Saturday at 6 a.m. to 2 a.m. on Sunday.

Bank Street from Albert Street to Wellington Street Bay Street from Albert Street to Wellington Street Booth Street from Albert Street to rue Eddy, Gatineau Bronson Avenue from Slater Street to Sparks Street Fleet Street from Lett Street to Booth Street Kent Street from Albert Street to Wellington Street Lett Street from Fleet Street to Wellington Street Lloyd Street from Fleet Street to Lett Street Lyon Street from Albert Street to Wellington Street Metcalfe Street from Queen Street to Wellington Street O'Connor Street from Queen Street to Wellington Street Portage Bridge from Wellington Street to rue Laurier, Gatineau Queen Street from Bronson Avenue to Bank Street Slidell Street/Onigam Street from Lemieux Island to Bayview Station Road Sir John A. Macdonald Parkway at Parkdale Avenue to Wellington Street Sparks Street from Bronson Avenue to Lyon Street North Vimy Place from Wellington Street to Booth Street Wellington Street from Sir John A. Macdonald Parkway to Elgin Street

The following roads will be closed from 9 p.m. Saturday until 12 a.m.

Albert Street from Bronson Street to Bayview Station Road Slater Street from Albert Street to Bronson Avenue Well wishes from the U.S.

U.S. Ambassador to Canada David L. Cohen wished all Canadians a happy Canada Day on behalf of U.S. President Joe Biden and the people of the United States,

"As Canada celebrates the 156th anniversary of Confederation, I’m reminded that our friendship substantially pre-dates Confederation. This year, we will celebrate nearly two centuries of diplomatic relations between our two countries as our consulate in Halifax marks the 190th year of its opening," Cohen said in a statement Saturday morning.

"Our historic partnership has been on display since last month with U.S. and Canadian firefighters standing side by side fighting an unprecedented number of fires that have threatened people and homes and businesses across Canada. As many as 1,800 American firefighters have travelled to help their Canadian counterparts without a second thought, just as Canadians do to help Americans whenever we need them."

Cohen closed with a wink and a nod to our shared language and its subtle differences.

"And so, to our Canadian friends, neighbo(u)rs, and family: Happy Canada Day! Bonne Fête du Canada!"

With files from CTV News Ottawa's Natalie van Rooy