Crynodeb
- OCID:
- ocds-kuma6s-162929
- Cyhoeddwyd gan:
- Awdurdod Parc Cenedlaethol Eryri
- ID Awudurdod:
- AA22451
- Dyddiad cyhoeddi:
- 16 Mehefin 2026
- Dyddiad Cau:
- -
- Math o hysbysiad:
- Hysbysiad o Ddyfarnu Contract
- Mae ganddo ddogfennau:
- Nac Ydi
- Wedi SPD:
- Nac Ydi
- Mae ganddo gynllun lleihau carbon:
- Nac Ydi
Crynodeb
Reservoirs Act 1975: Llyn Mair Reservoir, County of Gwynedd, Eryri National Park
Reservoir Safety Improvement Works (MIOS)
Tender Expression of Interest
Stillwater Associates has been employed by Eryri National Park to oversee the implementation of reservoir safety improvement works on Llyn Mair Reservoir. The site is located close to the village of Maentwrog, NGR SH 653 412.
The proposed works are the construction of a new siphon pipe to allow the reservoir level to be drawn down in case of emergencies. This is to be achieved by repurposing one of the four existing spillways (Spillway ‘C’) to contain the new HDPE siphon and then subsequently backfilling with mass concrete or aggregate depending on the location. The upstream leg of the siphon is to be installed using qualified divers with some partial demolition work undertaken to the chamber. Additionally, Spillway ‘D’ is to be abandoned in situ by forming a wall across the existing channel.
The works are required to address statutory recommendations made in the interests of reservoir safety. Eryri National Park has committed to having the works completed by 31st July 2026 and it is imperative that the successful contractor delivers the works accordingly.
Testun llawn y rhybydd
HYSBYSIAD O DDYFARNU CONTRACT - CENEDLAETHOL
|
| WORKS |
1 Manylion yr Awdurdod
|
1.1
|
Enw a Chyfeiriad yr Awdurdod
|
|
Awdurdod Parc Cenedlaethol Eryri |
Penrhyndeudraeth, |
Gwynedd |
LL48 6LF |
UK |
Edward Jones |
+44 1766770274 |
|
|
| http://www.eryri.llyw.cymru |
|
2 Manylion y Contract
|
2.1
|
Teitl
Reservoir Safety Improvement Works
|
2.2
|
Disgrifiad o'r contract
Reservoirs Act 1975: Llyn Mair Reservoir, County of Gwynedd, Eryri National Park
Reservoir Safety Improvement Works (MIOS)
Tender Expression of Interest
Stillwater Associates has been employed by Eryri National Park to oversee the implementation of reservoir safety improvement works on Llyn Mair Reservoir. The site is located close to the village of Maentwrog, NGR SH 653 412.
The proposed works are the construction of a new siphon pipe to allow the reservoir level to be drawn down in case of emergencies. This is to be achieved by repurposing one of the four existing spillways (Spillway ‘C’) to contain the new HDPE siphon and then subsequently backfilling with mass concrete or aggregate depending on the location. The upstream leg of the siphon is to be installed using qualified divers with some partial demolition work undertaken to the chamber. Additionally, Spillway ‘D’ is to be abandoned in situ by forming a wall across the existing channel.
The works are required to address statutory recommendations made in the interests of reservoir safety. Eryri National Park has committed to having the works completed by 31st July 2026 and it is imperative that the successful contractor delivers the works accordingly.
|
2.3
|
Cod a Dosbarthiad yr Hysbysiad
|
|
|
|
|
45000000 |
|
Construction work |
|
45200000 |
|
Works for complete or part construction and civil engineering work |
|
45240000 |
|
Construction work for water projects |
|
45247200 |
|
Construction work for dams and similar fixed structures |
|
45247210 |
|
Dam construction work |
|
45247270 |
|
Reservoir construction works |
|
71000000 |
|
Architectural, construction, engineering and inspection services |
|
71300000 |
|
Engineering services |
|
71500000 |
|
Construction-related services |
|
|
|
|
|
1012 |
|
Gwynedd |
|
2.4
|
Amcangyfrif o Gyfanswm Gwerth
|
3 Gweithdrefn
|
3.1
|
Math o Weithdrefn
Dau gam
|
4 Dyfarnu Contract
|
4.1
|
Cynigwyr Llwyddiannus
|
4.1.1
|
Enw a Chyfeiriad y cyflenwr, contractwr neu ddarparwr gwasanaeth llwyddiannus
William Hughes (Civil Engineering) Limited |
W H Offices, Bodffordd, |
Llangefni |
LL777DZ |
UK |
|
|
|
|
| http://www.williamhughes.com |
|
5 Gwybodaeth Arall
|
5.1
|
Rhif cyfeirnod a roddwyd i'r hysbysiad gan yr awdurdod contractio
N/a
|
5.2
|
Dyddiad Dyfarnu'r Contract
16
- 06
- 2026 |
5.3
|
Nifer y tendrau a dderbyniwyd
2
|
5.4
|
Gwybodaeth Arall
(WA Ref:166464)
|
5.5
|
Dogfennaeth Ychwanegol
Dd/g
|
5.6
|
Dyddiad cyhoeddi'r hysbysiad hwn:
16
- 06
- 2026 |
Codio
Categorïau nwyddau
| ID |
Teitl
|
Prif gategori
|
| 45000000 |
Gwaith adeiladu |
Adeiladu ac Eiddo Tiriog |
| 45247200 |
Gwaith adeiladu ar gyfer argaeau a strwythurau sefydlog tebyg |
Gwaith adeiladu ar gyfer argaeau, camlesi, sianeli dyfrhau a thraphontydd dwr |
| 45240000 |
Gwaith adeiladu ar gyfer prosiectau dwr |
Gwaith ar gyfer gwaith adeiladau cyflawn neu rannol a gwaith peirianneg sifil |
| 45247210 |
Gwaith adeiladu argaeau |
Gwaith adeiladu ar gyfer argaeau, camlesi, sianeli dyfrhau a thraphontydd dwr |
| 45247270 |
Gwaith adeiladu cronfeydd dwr |
Gwaith adeiladu ar gyfer argaeau, camlesi, sianeli dyfrhau a thraphontydd dwr |
| 45200000 |
Gwaith ar gyfer gwaith adeiladau cyflawn neu rannol a gwaith peirianneg sifil |
Gwaith adeiladu |
| 71500000 |
Gwasanaethau goruchwylio safleoedd adeiladu |
Gwasanaethau pensaernïol, adeiladu, peirianneg ac archwilio |
| 71300000 |
Gwasanaethau peirianneg |
Gwasanaethau pensaernïol, adeiladu, peirianneg ac archwilio |
| 71000000 |
Gwasanaethau pensaernïol, adeiladu, peirianneg ac archwilio |
Adeiladu ac Eiddo Tiriog |
Lleoliadau Dosbarthu
| ID |
Disgrifiad
|
| 1012 |
Gwynedd |
Cyfyngiadau Rhanbarthol ar y Rhybuddion
Mae’r prynwr wedi cyfyngu’r rhybuddion ar gyfer yr hysbysiad hwn i gyflenwyr yn y rhanbarthau canlynol.
| ID |
Disgrifiad
|
|
Nid oes cyfyngiadau ar y rhybuddion ar gyfer yr hysbysiad hwn.
|
Teulu dogfennau
|
Manylion hysbysiad
|
- Dyddiad cyhoeddi:
- 16 Mawrth 2026
- Dyddiad Cau:
- 10 Ebrill 2026 00:00
- Math o hysbysiad:
- Hysbysiad o Gontract
- Enw Awdurdod:
- Awdurdod Parc Cenedlaethol Eryri
|
- Dyddiad cyhoeddi:
- 16 Mehefin 2026
- Math o hysbysiad:
- Hysbysiad o Ddyfarnu Contract
- Enw Awdurdod:
- Awdurdod Parc Cenedlaethol Eryri
|
Ynglŷn â'r prynwr
- Prif gyswllt:
- N/a
- Cyswllt gweinyddol:
- N/a
- Cyswllt technegol:
- N/a
- Cyswllt arall:
- N/a
Gwybodaeth bellach
|
Dyddiad
|
Manylion
|
|
Nid oes unrhyw wybodaeth bellach wedi'i lanlwytho.
|