A316 Manor Circus roundabout
What we're doing
The road works on the A316 Manor Circus (roundabout) near Richmond include:
- Urgent structural repairs to the bridge deck beneath the roundabout. Damage was caused by historic Thames Water leaks and water infiltration in the central disc of the junction. These works were originally scheduled for summer 2020, before the coronavirus pandemic led to delays
- Engineering works to replace a critical gas main with Cadent Gas. This will reduce gas leaks and prepare the network for the transportation of hydrogen. Collaborating with TfL roadworks will reduce the overall impact and minimise disruption by an estimated 3 weeks
- Road safety improvements like upgraded pedestrian crossings, wider footways, cycle facilities, and carriageway resurfacing. We'll also improve the existing green infrastructure, including new planting in the centre of the roundabout, after the bridge deck repairs
We're combining the work into one period of roadworks to minimise disruption.
Find out more about the roadworks and their impact on the local area in our list of frequently asked questions (FAQs).
Why we're doing the work
The safety improvements that follow the bridge repairs are expected to reduce the number of road collisions resulting in injury by more than half.
There were 13 collisions on the roundabout and existing zebra crossings in the 36 months up to February 2023.
In 2014, we consulted on proposals for the A316 Manor Circus junction. We received 573 responses with 62% support.
Phases of work
Our contractors are working on each arm of the roundabout separately to minimise disruption.
To make repairs to the bridge deck without closing the junction entirely to traffic, specialist contractors will work on the bridge in 2 phases:
- Phase 1: The northern half of the bridge
- Phase 2: The southern half of the bridge
To allow enough space for contractors to work on the bridge deck, the junction can no longer function as a roundabout. Four-way temporary traffic signals have been introduced, meaning that all approaches to the roundabout are now separately signalised.
This has unfortunately caused heavy traffic throughout the local area, on the A316 and neighbouring routes.
We're working to minimise the disruption as much as possible by combining construction activities and reviewing signal timings among other steps.
We monitor the network 24 hours a day, 7 days a week. Our goal is to ensure the safety and efficient operation of the road network for general traffic, buses, freight, pedestrians and cyclists.
We've also implemented a wider signal strategy across the A316 to reduce delays in the area.
How our works may affect you
The roundabout will be open for most of the works.
Any closures will happen overnight. A limited amount of night-time working may be needed to do certain activities - noise and vibration will be kept to a minimum.
Construction activity started in early August 2023. Works take place Monday to Friday 8:00-17:00 and Saturday 8:00-13:00.
Between September and December 2023, we will:
- Remove the central island of the roundabout and repair the bridge deck
- Improve some of the footways
We agreed with Richmond Council to close the B353 Sandycombe Road between Raleigh Road and the A316 for vehicles travelling southbound. This started 22 September 2023.
Bus route 110 is on diversion - see the Bus changes page.
This will make it easier for drivers on the A316 to get through the junction, and also reduce the current traffic levels on residential roads.
From January 2024, we will:
- Complete footway works
- Install new pedestrian crossings and improve the cycle lane on Lower Richmond Road
- Complete planting in the centre of the roundabout and islands
- Resurface the roundabout and surrounding roads
Bus service changes have been made to protect bus reliability and reduce congestion through the area:
- Route R68 - cut back to operate between Hampton Court and York Street, Twickenham only, with no service on this route between Twickenham and Kew Retail Park
- Route R70 - temporarily extended from A316 Richmond Manor Circus via the current R68 route to Kew Retail Park. Route R70 will serve all current R68 stops between Richmond and Kew Retail Park
- Route R70 - not serving bus stop SC outside Sainsbury's on Manor Road in Richmond. For travel to or from Sainsbury's passengers should either get off on Lower Mortlake Road or use bus route 371 instead (can change at Richmond Station in both directions)
We expect to complete work by spring 2024.
An accessibility audit will be made on site in each construction phase. This will review the layout of fences, barriers, and temporary pedestrian and cycle diversions, and recommend changes to improve accessibility.
Collaboration with Cadent Gas
The local gas company Cadent has identified that a critical iron main in this area needs to be upgraded. This will be replaced with new plastic pipes for a safe, reliable gas supply for years to come.
TfL and Cadent have been working closely with the London Borough of Richmond upon Thames and the Greater London Authority over the past few months. This is to ensure these upgrades are done collaboratively and as efficiently as possible - using the dig-once approach to reduce disruption while improving the resilience of local infrastructure.
Accessible pedestrian crossing trial
We'll be carrying out a trial on more accessible ways to call a traffic light at a pedestrian crossing.
The trial will take place during these works when temporary traffic lights will be installed. This is to improve accessibility for people who travel through the area and may be affected by the works.
In addition to the usual button, 3 innovative technologies will be trialled:
- A mobile phone app that connects to the crossing and works as a remote control
- A wireless button that can be fitted to a mobility scooter, walking frame or electric wheelchair, that connects to the crossing and works as a remote control
- A handheld tube that can be pressed from either end, for example for people who have trouble pressing buttons due to hand tremors
Email ManorCircus@tfl.gov.uk if you live locally to Manor Circus and would like to take part in the trial.