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Where we are working
We are working in a number of locations across Preston and Penwortham. Click on the location for more information.
If you are baffled by some of the terms we have used below and would like to find out what they mean visit the 'What are we doing' page for a useful jargon buster.
During the length of our project all businesses will remain open as usual and pedestrian access will be available at all times. We would like to thank your for your continued cooperation and patience during this work.
PRESTON TUNNELS
Watery Lane C1
Watery Lane Pumping Station C4
Marsh Lane C6
Junction Road/Channel Way S4C6a
Strand Road Gardens C8
Fishergate Hill C9
Priory Park S3
Crookings Lane/Penwortham Pumping Station S2
Howick Cross Lane/Terminal Pumping Station TPS S1/S1a
Western River Crossing S5
Clifton Marsh Wastewater Treatment Works S6
PRESTON 32 UIDs
Valley Road SRI0003
Cop Lane SRI0031
Riverside Road SRI0002
Wolseley Road PRE0028
Lamaleach Pumping Station FYL0002
Dow Brook FYL0028
Warton Pumping Station FYL0028
Clifton Village Pumping station PRE0121
Sharoe Green PRE0014
Clarksons Fold PRE0015
Garstang Road PRE0034
Victoria Road PRE0119
School Lane FYL0006
Bunker Street FYL0016
Watling Street Road - PRE0118
Albyn Street PRE0002
Ribbleton Lane PRE0004
Deepdale Road PRE0020
St Georges Road PRE0024
Oxford Street PRE0074
Manchester Road PRE0087
Polvis Road
PRESTON TUNNELS
Watery Lane C1
At Watery Lane Grand Junction we have completed the construction of a 6m wide and 24m deep using secant piling. This shaft is now connected to the shaft (C4) Watery Lane Pumping Station by a 1.5m wide and approx 24m deep micro tunnel. The miro tunnel (shown above in pink) takes the flows from the existing network into the new interceptor tunnel (shown in blue). The micro tunnel was excavated using a Microtunnel Boring Machine (MTBM).
Micro Tunnel Boring Machine being lowered into a shaft
Internal shaft work is ongoing and the next phase of the work is to connect the new micro tunnel into the existing network, this requires manholes to be construction and new pipes to be laid.
When our work is complete at this location Lancashire County Council Highways Authority will need to make some further modification to the highway to restore two way traffic to Watery Lane.
Watery Lane Pumping Station C4
At our site next to Watery Lane Pumping station, we have completed the construction of a shaft 10.5m wide and 24m deep using secant piling. This shaft is now connected to the shaft (C1) Watery Lane Grand Junction by a 1.5m wide approx 24m deep micro tunnel. The microtunnel was excavated using a Microtunnel Boring Machine (MTBM). This shaft is also the launch shaft for the main interceptor tunnel. This 3.05m tunnel is being excavated though the sandstone rock approx 24m deep by a Tunnel Boring Machine (TBM).
This Interceptor tunnel takes the flows from the existing network into the new main storage tunnel at Channel Way/Junction Road (S4) (shown in red on the map above). The interceptor tunnel (shown in blue on the map above) which started at Watery Lane/Portway and finished at the bottom of Fishergate Hill was completed in November 2011.
Tunnel Boring Machine (TBM) Caroline being lowered into shaft C4
TBM Caroline at the bottom of shaft C4
Tunnel between C4-C8
Marsh Lane C6
This shaft has been constructed off the highway and is 9m wide and 25m deep. This shaft is now connected to the shaft (C4) Channel Way/Junction Road (S4) by a 1.5m wide and approx 24m deep micro tunnel. The mirotunnel takes the flows from the existing network into the new interceptor tunnel. The microtunnel was excavated using a Microtunnel Boring Machine (MTBM). Internal shaft work and connection to the existing network is currently ongoing.
Junction Road / Channel Way S4C6a
At this site we have completed construction on three shafts.
- S4 is 10.5m wide by 26.5m deep
- C6A is 10.5m wide by 25m deep
- C10 in 7.5m wide by 25m deep
S4 will take storm water flows from Marsh Lane (C6), Watery Lane Pumping station (C4) as well as West Strand Gardens (C9). This is where the interceptor tunnel is connected to the main storage tunnel, which will make the first crossing under the River Ribble continuing under Priory Park and through to the existing Penwortham Pumping station which is situated in Penwortham Golf course.
C6a is connected to both C10 and Marsh Lane (C6) by a 1.5m wide approx 24m deep micro tunnel. The mirotunnel takes the flows from the existing network into the new interceptor tunnel. The microtunnel was excavated using a Microtunnel Boring Machine (MTBM).
Micro Tunnel Boring Machine being removed from shaft S4
Strand Road Gardens C8
The construction of the shaft, 7.5m wide by 23m deep, is complete at Strand Road Gardens. It will be connected to the shaft (C9) at Fishergate Hill by a 1.5m wide and approx 24m deep micro tunnel. The micro tunnel (shown in pink) takes the flows from the existing network into the new interceptor tunnel (shown in blue). The micro tunnel was excavated using a Microtunnel Boring Machine (MTBM).
This shaft also connects into the interceptor tunnel. This 3.05m tunnel is being excavated though the sandstone rock approx 24m deep by a Tunnel Boring Machine (TBM) and will connect Strand Road Gardens to Watery Lane (C4). The interceptor tunnel (shown in blue on the map towards the top of the page) started at Watery Lane/Portway Junction will take approx 4 months to tunnel to Strand Road Gardens. The completed tunnel will take the flows from the existing network into the new main storage tunnel at Channel Way/Junction Road (S4) (shown in red on the map towards the top of the page).
Fishergate Hill C9
The construction of the shaft at Fishergate Hill is now complete. It will be connected to the shaft at Strand Road Gardens (C8) by a 1.5m wide and approx 24m deep micro tunnel. The micro tunnel (shown in pink) takes the flows from the existing network into the new interceptor tunnel (shown in blue). The micro tunnel was excavated using a Microtunnel Boring Machine (MTBM).
The working area at Fishergate Hill (shaft C9)
The internal shaft work is currently ongoing to connect into the existing network. Please see the diversion map.
Shaft and manhole locations on Strand Road
Priory Park S3
We proposed to construct a shaft 28m deep by 10.5m wide. However we have carried out extensive engineering investigations and by increasing the tunnel size from 2.85m in diameter to just 3.05m in diameter, an increase of just 20cm, we can remove the need for this shaft. We feel this is great news for United Utilities, our contractors and the local residents too.
Crookings Lane / Penwortham Pumping Station S2
The tunnel will continue approximately 26m underground through bedrock from the Channel Way shaft to the pumping station site within the golf course. This is an existing site where a segmental shaft, 10.5m wide and 28m deep has been constructed. From here the tunnel will continue underground to the Terminal Pumping Station (TPS) site.
Howick Cross Lane / Terminal Pumping Station (TPS) S1 & S1a
At this site we are constructing 2 shafts using a diaphragm wall method. Under normal operation, the flows will be pumped from here to the western river crossing via 2 rising mains. These have a diameter of 800mm each and a total length of 5.1km. These pipes have been laid through agricultural land using traditional pipe laying techniques. If a storm is so severe that all the shafts and tunnel are filled with storm water, the water will spill over a weir before being discharged to the river via a mechanical screen and new outfall. This acts as a sieve to prevent any particles larger than 6mm entering the river.
The completed outfall into the River Ribble
Work on the mechanical screening chamber
Work on the air valve at Mill Brook
Reinstatement of the land folloing completion of the twin rising mains
Vehicle speed - Concerns have been raised about the speed of construction traffic travelling along Howick Cross Lane. We have agreed with Lancashire County Council to reduce the advisory speed limit to 10 mph from the junction of Townley Lane to the bottom of Howick Row. Additional signage has been installed along with interactive speed signs at four locations along Howick Cross Lane. The 20 mph advisory speed limit will remain in place for our staff from the Liverpool Road junction at Howick Cross Lane up to the junction of Townley Lane. We would politely ask if local residents would also adhere to the 10 & 20mph speed restriction.
Security - We have had a number of trespassers on our site at the Terminal Pumping Station in the form of Motocross cyclists. It is unsafe for anyone to access our construction site without permission and therefore we now have security at the entrance to the Terminal Pumping Station site. Anyone who enters or exits the site must sign in and sign out.
As part of this work it has been necessary to divert some of the public footpaths. Click here to see a footpath diversion route map.
Western River Crossing S5
Within agricultural land off Grange Lane, Hutton we have constructed a segmental shaft 10.5m wide by 22.5m deep. This will enable us to cross under the banks and the bed of the river for the second time. From this point the flows will finish at the Clifton Marsh Wastewater Treatment Works for treatment.
Clifton Marsh Wastewater Treatment Works S6
At Clifton Marsh we are constructing a segmental shaft 10.5m in wide and 22.5m deep. This is being constructed to receive the tunnel from underneath the river and restore the flows to the treatment works.
PRESTON 32 UIDs
Penwortham
Valley Road SRI0003
Work on constructing a storm water storage tank is now complete. We will be back shortly to carrying out landscaping work and tree planting.
Cop Lane SRI0031
Work to construct a storm water storage tank capable of holding 1,100m3 of storm water storage has now been completed. A fence remains around the site as we need to come back and carry out some
Riverside Road SRI0002
Work here was to construct a new CSO chamber housing a static screen and is due to start in early May 2011 and was completed in just four months. This work was completed ahead of schedule with no lost time accidents.
Wolseley Road PRE0028
Work here to construct a storm water storage tank and new CSO chamber was completed in December 2011. We will be back to carry out landscaping work and tree planting.
Freckleton
Lamaleach Pumping Station FYL0002
Work started in March to construct a storm water storage tank in the allotment land. This work is anticipated to be complete by spring 2012.
School Lane FYL0006
Work started in late July to install a static screen in land close to the allotments. Work here is now complete.
Bunker Street FYL0016
Work also started here in July and again we are installing a static screen in land off the public highway. The majority of the work here has now been completed with only a small amount of landscaping work to complete.
Dow Brook FYL0028
We are constructing an underground storage tank which will hold 250m3 and we will be starting on site in April. The majority of the construction work here is now complete. Again this site was finished ahead of schedule.
Warton Pumping Station FYL0028
Work started here in April to increase the existing sewers at the pumping station. This will enable us to store the equivalent of over 1,000 baths of storm water.
Clifton Village Pumping station PRE0121
Here we will be replacing the existing pumping station and constructing an underground 100m3 storage tank. Work started here in May 2011 and will be onging for approximately 12 months.
Lea Gate
Sharoe Green PRE0014
We have completed the construction of a powered screen here. We still have some landscaping work to carry out.
Clarksons Fold PRE0015
We are constructing a storage tank of over 3,500m3 and installing a static screen work here started in August 2011 for approximately 12 months.
Garstang Road PRE0034
We have installed a static screen on Garstang Road but still have some landscaping work to carry out.
Victoria Road PRE0119
Work to install a powered screen in an existing chamber on Victoria Road has been completed.
Watling Street Road - PRE0118
Here we are constructing a storm water storage tank in the area in front of the Ministry of Defence Army Barracks. Construction here started in May. We have also recently completed an outfall structure which allows flows to spill into the river once the tank is full. This outfall is at the rear of the pub close by. Landscaping work will follow shortly.< SPAN>
Albyn Street East PRE0002
Here we are constructing a storm water storage tank in the grounds of a car park off London road. Work here is planned to take approximately 12 months and started in August 2011. It will involve some work in the highway of Albyn Street and George Street. We will notify local residents closer to the time when this work takes place.
Ribbleton Lane PRE0004
Here we are constructing a storm water storage tank in private land. Our work in the highway has taken longer to complete and Ribbleton Lane will remain closed until the end of March 2012. All businesses in the area remain open and would welcome your custom.
Deepdale road PRE0020
Phase one of the work in Deepdale Road has now been successfully carried out. This involved installing a new static screen into an existing CSO chamber. The second phase which involves some pipework modifications and this will be carried out in early 2012.
St Georges Road PRE0024
We have constructed a storm water storage tank and static screen within the public footpath at St Georges Road and Harewood Road. This work has been completed.
Oxford Street PRE0074
Here we are constructing a storm water storage tank in the green space off Oxford Street. Work here started in July and is due to take approximately 12 months to complete.
Manchester Road PRE0087
We have installed a static screen within a chamber in the highway on Manchester Road and this work is now complete.
Polvis Road
We are constructing a chamber in the green space near to the traffic lights. This will connect into Watery Lane via a tunnel which is being constructed 26 metres underground.