Tours 1-4 to take place on Friday 5 th September Leaving Queens University Belfast at 10.15am returning at approximately 5pm.

Transcription

1 Tours 1-4 to take place on Friday 5 th September Leaving Queens University Belfast at 10.15am returning at approximately 5pm. Pre Conference Tour 3 September 2014 Lagan Weir and Belfast Harbour Lagan Weir Tidal and river flow control structure Boat trip of Belfast Harbour and Titanic Belfast Tour 1 The Mournes Silent Valley Earth dam Ben Crom Concrete gravity dam Fofanny stop Earth dam Optional Knockbracken Earth dam Large bus hour drive from Belfast Tour 2 Upper Bann Lough Island Reavy four earth dams Spelga Concrete gravity dam Fofanny stop Earth dam Large bus hour drive from Belfast Tour 3 North West Toome Sluice lifting sluice gate structure Altnaheglish Concrete gravity dam with rockfill berm strengthening Small bus hour drive from Belfast Tour 4 Carrickfergus South Woodburn Cascade three earth dams Copeland Dam Earth dam Titanic Pump House Small bus 35 minute drive from Belfast 1

2 Mapping courtesy of NI Water Ordnance Survey NI 1:250,000 Crown Copyright Reserved 2

3 Pre Conference Tour: Lagan Weir Lagan Weir and Titanic Boat Tour Single Large Coach Lunch Pub Lunch McHugh s Bar, Belfast City Centre Lagan Weir Department of Social Development Last Inspecting Engineer: Not Applicable (i.e. no Section 10) Supervising Engineer: Not Applicable Access: Bus access direct to the Weir. Short walk. Facilities: Toilet at Weir Building Lagan Weir (c) URS Construction completed 1994 The structure provides water level control for the tidal River Lagan. The weir consists of five hydraulically operated fish belly gates, each 20n long and 5.5m high. The structure has been recently completed through the first major maintenance with repainting of the gates and M&E upgrades. There are plans to replace the walkway with a more architecturally significant structure and may be ongoing at the time of the visit. Timings for the tour 12.30pm 12.45pm 2.00pm 3.00pm 3.15pm 4.30pm 4.45pm 5.00pm Depart University Arrive at McHugh s for Lunch Walk to Lagan Weir Lagan Weir Site Visit Likely to be divided into groups Belfast Harbour Boat Tour ( Conclude Boat Tour Depart for Belfast Arrive at University for registration Lunch at McHugh s Bar Pub Lunch Menu TBC 3

4 Lagan Weir Visit The Lagan Weir was key to the redevelopment of Belfast s Laganside Area. The Weir was originally designed by Ferguson McIlveen (now part of URS) and was constructed in the early 1990s and formally opened in The structure provides water level control on the upstream impoundment and protection against downstream extreme high tide events. Maintaining the river level avoids the exposure of the river bed at low tide and ensures a water depth suitable for various recreational pursuits in the river. The weir structure consists of five hydraulically operated fish belly gates, each 20 metres long x 5.5m high and operated by a single hydraulic ram at one end of 250 tonnes capacity. The gates are sealed rigid steel protected with an epoxy paint system. The single hydraulic cylinders incorporated rams which were coated with a form of ceramic coating to maximise cylinder seal wear in a saline environment. At the time of original design the coatings and control system operating the gates were state of art however being in the saline conditions resulted in gradual deterioration of both gate coatings and the surface coating on the ram rod. This caused wear on the cylinder seals and the gradual increase in leakage rates into the adjacent marine environment. Having carried out the condition report on the structure, URS were subsequently appointed to develop the report recommendations to detailed design level, appropriate to procurement of specialist M+E contractors. Contract documentation was produced and a two stage restricted list process managed to ensure experienced contractors tendered for these specialised structures. The procurement followed stringent government guidelines and assessed bidding consortium as a weighted quality/cost relationship, including interview stage. URS made recommendations as to the contractor appointment and subsequently managed the refurbishment contract, including detailed technical supervision on site. A very important element of this construction management was ensuring clear understanding and involvement by the client to ensure all operational constraints were incorporated in methodologies and programmes. The site works included use of 18.2m long stoplogs, designed to be used on the Ramsome and Rapier gates on the Bann River, to allow isolation of the gates for detailed cleaning, assessment, testing and refurbishment. Gates were repainted in cofferdam conditions and controlled encapsulated environments, with the cylinder rods replaced with a new and improved form of ceramic coating. The project was completed early 2011 and was on budget and time. The visit will set out a detailed explanation of the refurbishment contract giving an explanation of the gate, cylinder and control systems upgrades. 4

5 Photos - URS 5

6 Tour 1: The Mournes - Silent Valley, Ben Crom and stop at Fofanny A single large coach to be used Lunch at Silent Valley Visitor s Centre Mapping courtesy of NI Water Ordnance Survey NI 1:250,000 Crown Copyright Reserved 6

7 Silent Valley Reservoir Last Inspecting Engineer: Supervising Engineer: NI Water Alan Cooper Maynard Cousley, NI Water Access: Bus access direct to the dam. Short walk. Facilities: Public toilets at car park and visitors centre Construction (c) Alan Cooper - URS Catchment comprises much of the wilderness area of the Mourne mountains extending to 2,227 ha. The dam is also served by an indirect catchment of 1,376 ha from the Annalong River diverted through a 3.4km long tunnel. Impounds Kilkeel River with flow also from the Annalong River. Reservoir approximately 3km long and has a capacity of 13,638 Ml. The overflow is formed by a circular bellmouth spillway discharges to an outlet tunnel.forms lower reservoir in a two reservoir cascade Earth bank with a central puddle clay core. Dam structure 460m long and max height 24m. The revetment was reconstructed in The drawoff systems were refurbished in Ben Crom Reservoir Last Inspecting Engineer: Supervising Engineer: NI Water Alan Cooper Maynard Cousley, NI Water Access: Bus access direct to the dam. Short walk. Facilities: none Construction completed (c) Alan Cooper, URS Catchment comprises part of the wilderness Mournes area extending to 810ha. Impounds Mill River, a tributary of the Kilkeel River. Reservoir approximately 2km long and has a capacity of 7,728 Ml. Forms Upper reservoir in a two reservoir cascade Mass concrete gravity structure with central profiled spillway. Dam structure 213m long and max height 34m The Drawoff systems were refurbished in

8 Fofanny Reservoir Last Inspecting Engineer: Supervising Engineer: NI Water Alan Cooper Maynard Cousley, NI Water Access: Bus access direct to the dam. Short walk. Facilities: none Construction completed 1909 (c) Google David Nesbitt Timings for the tour Catchment is rough upland area of peat and rock with an area of 375ha. The dam is also served by an indirect catchment of 135 ha diverted from the Slievemeel River. Impounds Shimna River and flow from the Slievemeel River. Reservoir approximately 450m long and has a capacity of 395Ml. A wave wall and a new profiled spillweir at the Southern abutment were constructed in Earth Bank with central puddle clay core. Dam structure 238m long and max height 14.3m. The drawoff arrangements are programmed for refurbishment in am 11:45am 12:45am 1.00pm 1:45pm 2.15pm 3:15pm: 3.30pm 3.45pm 5.15pm 5:30pm Depart University Arrive at Silent Valley (allows Journey time of 1hr and 30 minutes) Silent Valley Walkover (allow 1 hour) Lunch at Silent Valley Visitors Centre Post lunch presentation History of the Silent Valley Dr PT Donald Depart on Bus for Ben Crom (Journey 5 minutes) Ben Crom Walkover (allow 1 hour) Depart Ben Crom for Belfast (allows Journey time of 1hr and 30 minutes) Stop at Fofanny (allows 15 minutes for walkover) Stop at Knockbracken Reservoir on route Optional (NO walkover) Arrive back at University Halls Lunch at Silent Valley Visitors Centre 8

9 Tour 2: Upper Bann - Lough Island Reavy, Spelga and stop at Fofanny A single large coach to be used Lunch Pub Lunch details to be confirmed Mapping courtesy of NI Water Ordnance Survey NI 1:250,000 Crown Copyright Reserved 9

10 Lough Island Reavy Reservoir NI Water Last Inspecting Engineer: Alan Cooper Supervising Engineer: Maynard Cousley, NI Water Access: Bus access direct to the dam. Short walk. Facilities: none (c) Alan Cooper, URS Spelga Dam Reservoir Last Inspecting Engineer: Supervising Engineer: NI Water Alan Cooper Maynard Cousley, NI Water Construction Completed Impounds Muddock River (tributary of River Bann). Total direct and indirect catchment area of 1336 ha of hilly farmland. The reservoir stores 9000 Ml and is formed by 4 earth embankments with a total length of approximately 1km. Between 1975 and 199 various improvements were carried out to all the dams. Earth Banks with central puddle clay cores. An eduction tower and a stability berm were constructed at the main Southern Embankment. A wave wall, stability berm and steel sheet pile core were added the Eastern embankment. An additional sluice was added in 2011, to increase the rate of drawdown in an emergency. Access: Bus access direct to the dam. Short walk from car park. Facilities: Public toilets at Car Park Construction completed (c) Alan Cooper, URS Catchment is rough upland area of peat and rock with an area of 704ha known as the Deers Meadow Impounds upper reaches of River Bann. Reservoir approximately 1.1km and has a capacity of 3327 Ml. Air-regulated saddle siphon spillway was added in Concrete gravity dam.. Dam structure 305m long and max height 28m. In 2011 the drawoff arrangement and the 12 siphon tubes were refurbished. A new access passage was cut into the inspection gallery in order to improve operational safety. 10

11 Fofanny Reservoir Last Inspecting Engineer: Supervising Engineer: NI Water Alan Cooper Maynard Cousley, NI Water Access: Bus access direct to the dam. Short walk. Facilities: Toilets at adjacent Treatment Plant Construction completed1909 (c) Google David Nesbitt Timings for the tour Catchment is a rough upland area of peat and rock with an area of 375ha. The dam is also served by an indirect catchment of 136 ha piped from the Slievemeel River. Impounds Shimna River and part of the Slievemeel River. Reservoir approximately 450m long. A new profiled spillweir at the Southern abutment and a wave wall were constructed in Earth Bank with central puddle clay core. Dam structure 238m long and max height 14.3m. The Drawoff arrangements are programmed for refurbishment in :15am Depart University 11.30am Arrive Lough Island Reavy (allow journey time of 1 hr and 15 minutes) pm Lough Island Reavy site walkover (allow 1 hour) 1.15pm Pub Lunch - Castlewellan 2.15pm Depart Castlewellan for Spelga Dam (allow journey time of 35 minutes) 2.50pm Arrive at Spelga dam 3.50pm Spelga dam site walkover (allow 1 hour) 4.00pm Depart for Belfast 4.10pm Stop at Fofanny (allows 15 minutes for walkover) 5:30pm Arrive back at University Halls Lunch at Castlewellan Pub Lunch Venue and Menu TBC 11

12 Tour 3: North West - Toome Sluice and Altnaheglish Smaller sized coaches to be used Lunch Pub Lunch details to be confirmed Mapping courtesy of NI Water Ordnance Survey NI 1:250,000 Crown Copyright Reserved 12

13 Toome Sluice Last Inspecting Engineer: Supervising Engineer: Rivers Agency, Department of Agriculture and Rural Development Not Applicable (i.e. no Section10) Not Applicable Access: Bus access close to Structure. Short walk (5-10 mins) and access over Lock Structure. Facilities: none Construction completed 1935 Impounds Lough Neagh Most extensive lake in British Isles.Reservoir (Lough Neagh) approximately 30km long. Sluice gate structure with five18.3m long lifting sluice gates, with side weirs and a fish pass. (c) BKS Surveys Rivers Agency 1992 Gates replaced and gantry constructed to facilitate installation of a maintenance stop-log system Scour apron, super structure strengthening and new access 2008 Electrification of gate operation Altnaheglish Reservoir Last Inspecting Engineer: Supervising Engineer: NI Water Alan Cooper Maurice Wright, NI Water Access: Significant journey on unclassified roads, Bus access direct to dam short walk... Facilities: Toilets at Treatment Plant. (Caugh Hill). Construction completed1934 Catchment is rough upland area of peat and forest with an area of 730ha. Impounds Altnaheglish River. Reservoir around 1.5km long with a capacity of 2270Ml. Dam structure 110m long and max height 29m. In 1987 the original concrete gravity dam was stabilised using a rock fill support berm, uplift relief wells and a new inclined grout curtain. A new profiled spillweir and stepped cascade was constructed around the East abutment and the crest reconstructed. (c) Alan Cooper, URS 13

14 Timings for the tour 10:15am Depart University 11.00am Arrive at Toome Sluices (allows journey time of 45 minutes) Toome Sluice site walkover (allow 1 hour) 12.15pm Depart for Lunch 12.30pm Pub Lunch Toome/ Castledawson 1.30pm Depart for Altnaheglish 2.15pm Arrive Altnaheglish (allows journey time of 45 minutes) 3.15pm Altnaheglish site walkover (allow 1 hour) 3.30pm Depart Altnaheglish for Belfast 5.00pm Arrive back at University Halls Lunch at Toome/ Castledawson Pub Lunch Venue and Menu TBC 14

15 Tour 4: Carrickfergus South Woodburn Cascade and Copeland Smaller sized coaches may be used Lunch Pub Lunch details to be confirmed Mapping courtesy of NI Water Ordnance Survey NI 1:250,000 Crown Copyright Reserved 15

16 South Woodburn Reservoir Cascade NI Water Last Inspecting Engineer: Alan Cooper Supervising Engineer: Maynard Cousley, NI Water Access: Bus access direct to the dam. Short walk. Facilities: none Upper South Woodburn Reservoir Series Construction completed1876 (c) Alan Cooper, URS Catchment is rough upland and forest area extending to 599ha. Impounds South Woodburn River. Reservoir approximately 840m long and impounds 1669 Ml. Earth Bank with central puddle clay core. Dam structure 500m long and max height 22m. The toe is submerged until the Middle South reservoir is drawn down by 8m. Between 1975 and 1982 a range of improvements was carried out including a wave wall, additional spillway capacity and a stability berm with a filter. The drawoff arrangements were again refurbished in 2013/14 Middle South Woodburn Reservoir Series Construction completed1868. (c) Alan Cooper, URS Catchment is rough upland and forest area extending to 1350ha. Impounds South Woodburn River and diversion from North Woodburn.. Reservoir approximately 600m long and impounds 2135 Ml. Earth Bank with central puddle clay core. Dam structure 550m long and max height 26m. Between 1975 and 1982 a range of improvements were carried out including additional spillway capacity and a rock stability berm with a filter. The drawoff arrangements were again refurbished in

17 Lower South Woodburn Reservoir Series Construction completed 1880 Catchment is rough upland and forest area extending to 1406ha. Impounds South Woodburn River. Reservoir approximately 350m long and impounds 489 Ml. Earth Bank with central puddle clay core. Dam structure 325m long with an 82m long return embankment at the Northern end. Max height 19m. A wave wall was constructed in The drawoff arrangements are programmed for further refurbishment in (c) Alan Cooper, URS Copeland Reservoir, Carrickfergus NI Water Last Inspecting Engineer: Alan Cooper Supervising Engineer: Maynard Cousley, NI Water Access: Bus access direct to the dam. Short walk. Facilities: none Construction completed 1881 (c) Google Justin Macartney Catchment is rough upland area Of peat and forest with an area of 1269ha, including the upstream Lough Mourne catchment. Impounds Beltoy River. Reservoir around m long and impounds 607 Ml. Earth Bank with central puddle clay core. Dam structure 625m long and max height 19m. Between 1975 and 1982 a range of improvements were carried out including a wave wall, a new profiled spillweir, cascade spillway channel, and a rockfill stability berm with a filter. The drawoff arrangements are programmed for further refurbishment in

18 Titanic Pumphouse Nowhere else on earth can bring you this close to Titanic the world s most famous liner, built in Belfast. She sat here in this very dry dock on the eve of her first and last voyage in April of Titanic is remembered for the dramatic story of her sinking, but in 1912, she was an icon for all that was great about the 20th century she was the most innovative, the most luxurious, the most awe-inspiring thing ever created by the hand of man. Here, in the shipyard where she came to life, you can still see the remnants of engineering brilliance that brought Titanic into being. Located in the Northern Ireland Science Park a 21st century icon of innovation and forward thinking Titanic s dry dock is the physical reminder of a bygone age in which the dreams of men soared to new heights. Inside the pump-house, the engineering achievement of the Edwardian age is almost perfectly preserved. Amongst the massive pumps and gargantuan hydraulic accumulator, you can still hear the echoes of the men whose labour built the world s largest ships. At Titanic s dock, you have a unique opportunity to explore the site where Titanic last rested on dry ground and absorb the authenticity of her physical footprint in history. What else could compare to standing where she stood on the centenary of her birth? Timings for the tour 10:15am Depart University 10.50am Arrive at South Woodburn Cascade (allow 35 minute journey time) 12.30pm South Woodland Site Walkover (allow 1 hr and 30 minutes as 3 dams in cascade) 12.40pm Depart for Lunch 1.00pm Lunch - Pub Lunch in Carrickfergus 2.00pm Depart for Copeland Reservoir (allow 20 minutes) 2.20pm Arrive at Copeland Reservoir 3.20pm Copeland Reservoir Site Walkover (allow 1 hr) 3.30 pm Depart for Belfast 4.00pm Arrive Titanic Pump House 5.15 Depart for University Halls 5.30 Arrive at University Halls Lunch at Carrickfergus Pub Lunch Venue and Menu TBC 18