Hundreds of runners will take to the streets this Sunday for the 40th Watford Half Marathon.

This year's event will begin and end in Cassiobury Park and a number of road closures will be in place for the duration of the race.

Streets on the Cassiobury estate in Watford, Langleybury, Sarratt, Chandler's Cross, and near Croxley Green will be affected.

Organisers say on the advice of police and Hertfordshire County Council, full road closures will be in place over the entire route to minimise traffic delays and keep competitors and race officials safe.

Residents and emergency services will still have access to affected roads.

The race begins on Sunday February 6 at 10.30am with road closures expected to be lifted by 2pm. People are being encouraged to cheer on runners taking part.

Below is the list of roads that are set to be closed and the rough times, which can be subject to change. Some closures may be temporarily lifted during the times stated.

Langley Way - 10.35am to 1.30pm

Cassiobury Drive - 10.35am - 1.20pm

Glen Way - 10.40am – 1.20pm

Stanbury Avenue - 10.40am - 1.15pm

Beechpark Way - 10.40am - 1.15pm

Grove Mill Lane - 10.35am - 1.10pm

Langlebury Lane - 10.40am - 1pm

Old House Lane - 10.45am - 1pm

Bucks Hill - 10.55am - 1pm

Quickmoor Lane - 11am - 12.30pm

Bottom Lane - 11.05am – 12.40pm

Chandlers Lane - 11.05am -12.50pm

Redhall Lane 10.40am - 1pm

Fir Tree Hill - 10.40am – 12.55pm