The embankment reinforcement works will start on Monday 15 June for up to three months.
Cllr David East, executive member for highways, said: “Inadequate drainage for the embankment on Yarborough Hill, just above Whittons Park, has led to the current retaining walls starting to fail.
“As a result, we will be stabilising the existing slope using over 10,000 tonnes of material. This is in addition to installing 275m of new drainage to improve the current situation.
“Once we’re finished early this autumn, the carriageway dips, cracks, and uneven footways will be fixed, making it much safer for drivers, pedestrians, cyclists and everyone else going up and down the hill.”
In addition to reinforcing the embankment, the project will also see the existing concrete layby fully removed and the footway rebuilt so it is adjacent to the carriageway. This will enable a shallower embankment, providing a more stable slope to further reduce the risk of ground movement that causes damage to the road and footway.
Sam Edwards, head of highways infrastructure, said: “This scheme forms part of a wider programme of works we’re delivering across Lincoln this year. It follows the successful completion of the Bailgate improvements, allowing us to build on that success and continue investing in the area in a coordinated and connected way.
“We’ll begin the scheme by setting up our site compound and building a haul road so we can access the top of the park from Long Leys Road. Doing this means we can keep Yarborough Road open while most of the work takes place.
“From there, we’ll remove the existing walls, layby and footways that are currently failing, before putting temporary measures in place to stabilise the slope. We’ll then bring in new stone and rebuild the slope in layers, followed by installing new drainage, street lighting, fencing, kerbs and footways.
“Once that’s complete, we’ll carry out overnight resurfacing to improve the road surface, before finishing the scheme by planting ten new trees in the park.
“The bank stabilisation element of the scheme has been informed by detailed geotechnical analysis carried out by Lincs Laboratory. Their work has played a key role in shaping the design, highlighting the importance of using robust, evidence-based approaches when delivering major infrastructure projects.”
Below is an overview of traffic management that will be in place throughout the project:
- Combination of narrowed lanes and temporary traffic signals on Yarborough Road as needed for the duration of the project
- Closure of PROW 6, which is located between Yarborough Road and Long Leys Road, for the duration of the project
- Closure of the footway along the top of the Whittons Park and the west-side footway of Yarborough Road for the duration of the project
- Please note that a temporary pedestrian crossing facility will be in place to assist with crossing the road
- Night-time road closures (8pm to 6am) for up to two weeks, weekday evenings only, starting in early August for road resurfacing
Please note that access to Whittons Park from Yarborough Road will not be available during the project. However, access to the park and all play equipment will remain accessible from Long Leys Road.
Works to build the site compound are expected to start w/c 25th May.
These works have been aligned with the upcoming Tritton Road / Rope Walk / University Roundabout improvements, which are also due to start in June. Careful planning has gone into coordinating traffic management to minimise disruption as much as possible during both schemes.
Cllr East added: “Our works will provide long-term stability for the road, meaning minimal disruption and cost to taxpayers in the future.
“Our engineers have also designed the new embankment so it blends naturally with the surrounding landscape, minimising its visual impact. And they’ve also planned the works so that drivers and residents experience as little disruption as possible.”
For more information about the project, visit www.lincolnshire.gov.uk/yarboroughembankment.