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TOPIC: Alnwick

Alnwick 14 Jun 2009 14:31 #1

  • Peter Kirk
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You can tell I'm bored! Yet another site I think I have identified.
Alnwick at NGR NU200124.Listed as 1500 tons type C1

This site has now gone, probably due to the A1 being moved next to the site (when?). Not sure how long it lasted after that but the map still shows it there in 1991.



1971


1991


2006

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Alnwick 15 Jun 2009 08:46 #2

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I didn't have this one but I do now!

One for the rail buffs I think; I shall see what they can come up with on this and other sites.

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Alnwick 07 Dec 2010 14:11 #3

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Som info received from George Moffat

Hi have just read a couple of threads regarding the above. The facility was on a site adjacent to the Alnmouth road and was served by a set of sidings on the Alnwick branch line from Alnmouth. The sidings were to the north of the branch line and consisted of a number of roads with walkways alongside them for discharging tanker wagons via gravity to the storage site. I can remember fuel trains using the sidings till at least 1967 the year of closure of the line. The fuel depot definitely lasted longer than that. It may have closed when the nearby RAF Acklington closed. The only fuel required nowadays is for the detatched flight of 202 squadrons Sea Kings at RAF Boulmer.

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Alnwick 07 Dec 2010 22:43 #4

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These people may be able to help as well http://avrs.co.uk/ Alne Valley Railway.

This is useful as well http://www.lner.info/forums/alnwick-branch-mod-fuel-depot-p12816.html

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Alnwick 08 Dec 2010 05:03 #5

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Thanks REF and buccaneer66, info noted.

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Alnwick 14 Feb 2018 20:01 #6

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This is from a late 1970s specification for the demolition of the Alnwick site


4.0 MEMORANDUM OF SCOPE OF WORK

4.1 GENERAL

4.1.1 Summary of Contract

The premises known as Alnwick CRS are being relinquished by the Department of Energy and this Contract is for the complete demolition/dismantling and removal of all assets in accordance with the details given in this Specification and shown on the drawing.

The site will be formally handed over to the Contractor at the commencement of the contract work at a time and on a date to be agreed.

The existing system of security and locks will be taken away at the time of hand over and thereafter the Contractor shall be totally responsible for security and safety of the premises, including Company goods and chattels therein.

The Contractor shall allow to provide for adequate watching and lighting during the silent hours.

4.1.3 Telephone - See Appendix 'E'

The telephone line to the site is connected and in use at the present time and the Contractor shall make arrangements with the G.P.O. to have this facility transferred to him name with effect from the date of site occupation together with the provision of a second direct line for use of the Company contract supervisor.

The contractor shall allow to cover the payment of all site telephone charges and cost of transfer and instrumentation required under the contract terms.

4.1.4 Electricity Supply

The electricity supply to the site is connected and available for use and the Contractor shall make arrangements with the Electricity Authority for the transfer of liability and meter readings to be taken on the date of setting up on site.

At the appropriate stage of the contract programme the contractor shall make arrangements with the Electricity Authority for the supply to the premises to be terminated and cut off at the mains feed transformer to isolate and leave safe.

The contractor shall allow for the payment of all electricity accounts and any charges in connection with the contract requirements.


4.1 .5 Water Supply

The water supply to the premises is connected and available for use and the contractor shall make arrangements with the Water Board for the transfer of liability and meter readings to be taken on the date of setting up on site.

The contractor shall allow for the 90m3 emergency water tank to be kept full at all times, and until the necessity of an emergency supply on site is no longer required.

At the appropriate stage of the contract programme the contractor shall make arrangements with the Water Board for the hydrant and domestic supplies to the site to be cut off and disconnected from the mains feed and left safe,

The contractor shall allow for the payment of all charges made by the Water Board for use of water or any other cost in connection with the contract requirements.

4.1.6 Accommodation - See Anpendix ‘E’

The office block accommodation is available, if required, for the contractor to use during the contract period up to the time of demolition, on the understanding that all the costs to provide electricity, water, heating and lighting shall be borne by him, and that allowance has been made for the payment of all accounts associated with the use of the building.

4.1.7 Items for Retention

Before the premises are handed over to the contractor, the Company will have made arrangements for most of the items which are being retained to be removed from site. All other items of equipment to be recovered and retained for Company use will be suitably marked and a list handed to the Contractor when setting up on site. The items so enumerated will be stored separately and the Company wil make arrangements for disposal or removal from site.


4.1.8 Scrap

The contractor shall remove from site and dispose of all scrap in accordance with the special requirements in this specification, and in particular for steel which has been in contact leaded fuel.

The contractor shall allow credit for scrap recovered as defined in the Summary of Tender.


4.1.9 Existing Services

The information provided in regard to existing services on site is believed to be correct, but no guarantee is given that it is accurate or complete and the contractor shall be solely responsible for determining the existence and exact location of all buried services. All existing underground services are to be located and pegged out before excavations are commenced.

Any service pipeline, cable or drainage system whose existence or location was previously unknown, but which is located as a result of site excavations under the contract will also be pegged out by the contractor and the information passed to the engineer immediately.

It is important that before the contract work is commencedd the contractor shall contact the local Authority and Utilities (See Appendix D for addresses) for the purpose of obtaining information relevant to the site area and shall complete, sign and submit to the Engineer a 'Schedule of Authorities Visited' document, a specimen copy of which is attached to Appendix D.

4.1.10 Keeping Site Clean

The contractor shall make adequate provision for keeping the site tidy and clear of all waste materials and refuse as the works proceed.

Receptacles shall be provided for containing refuse material which, when full, shall be removed from site on a regular basis. This instruction shall not apply to any excavated material from contract work, the disposal of which is more particularly defined under the various sections of the Memorandum.

4.2 ORDER OF WORK

The Contractor shall take into account the following proposed 'Order of Work' schedule when preparing his outline plan which is to be submitted with his tender.

(a) Establish on site

(b) Removal of gantry pipework, equipment and steel structure

(c) Removal of product pipelines and equipment

(d) Demolition of pumphouse and air raid shelter

(e) Removal of horizontal tanks - including KS tank

(f) Excavations and leveling out of earth/concrete bund

(g) Excavations for and disposal of sludge site

(h) Demolition/dismantle main storage tanks

(i) Demolition/removal of static water tank and interceptor

(j) Demolition/removal of office block and services

(k) Site reinstatement

4.3 ROAD WAGFON GANTRY PIPEWORK, EQUIPMENT, STEEL STRUCUTRE

4.3.1 To be read in conjunction with Section 5.11

4.3.2 Dismantle by hand, or cold cut all above ground pipework and equipment, including electrical item associated with and supported on the gantry structure.

Cart recovered pipework materials to area allocated for decontamination treatment before disposal; electrical fittings to scrap.

Demolish/dismantle or cut down road wagon gantry steel structure, cart recovered materials to area allocated for scrap metal to be disposed of.

4.4 REMOVAL OF RODUCT PIPELINES INCLUDING LUB-OIL LINES, FOAM CONNECTIONS AND EQUIPMENT, INCLUDING VALVES.

4.4.1 To be read in conjunction with Section 5.11


4.4.2 The pipeline systems have been drained, disconnected at specific points and left open to atmosphere for aeration.

The Contractor shall carry out the laid down tests for drain down and gas free before commencing work.

4.4.3 Dismantle by hand all equipment which is marked for retention and place in nominated area on site. Scrap materials are to be carted to separate area for decontamination treatment before disposal.

Dismantle above ground equipment and pipework comprising mainly of 0.15m or 0.10m nominal bore, or cut into lengths not exceeding 3m and cart to area for decontamination treatment before disposal.

4.4.4 Ecavate tc expose underground pipeline systems of 0.10m or 0.15m nominal bore pipe running from main tankage to hose exchange pit and from hose exchange pit to pump house including foam injection connections en-route and Lub-oil lines. Remove pipework from trench, cut into lengths not exceeding 3m and cart to area allocated for decontamination treatment before disposal.

4.4.5 Demolish brick/concrete hose exchange pit including floor raft, a miscellaneous number of open brick valve chambers and paved steps over bund, cart debris and rubble and dispose of off site.

4.5 PUMPHOUSE AND AIR RAID SHELTER

4.5.1 These two buildings are of reinforced concrete construction. The pump house is above ground with entrances protected by roofed concrete porches. The air raid shelter is semi-buried with entrances and access steps protected by earth retaining concrete walls.

4.5.2 Dismantle and remove electrical equipment, water services and miscellaneous items remaining in the two buildings and cart to scrap area.

4.5.3 Pumphouse

Demolish the two compartment buildings to ground level, break out concrete floor and foundations, uplift rubble/debris and cart off site to tip, cart steel doors etc recovered to area allocated for scrap materials to be disposed of.

4.5.4 Air Raid Shelter

Excavate to expose building roof and shell, place materials aside, keeping top soil separate, for re-use as backfill on completion of demolition.

Demolish the building to ground level, break out concrete floor and foundations, uplift rubble/debris and cart off site to tip.

Replace excavated earth materials back into cavity, consolidate in 0.3m layers and finish off with the top soil to level off to surrounding ground area.

4.6 HORIZONTAL TANKS AND KERB SIDE TANK

4.6.1 This item covers the following:

• 3 No. MS Cylindrical tanks 6m x 2.7m diameter, semi-buried with 0.75m earth cover. Nominal capacity of each tank is 30m3

• 1 No. MS Cylindrical kerb-side tank. Underground size not known; capacity 2.27m3

4.6.2 The three horizontal tanks enumerated have been used for storage of lubricating oil and have been cleared out and certified gas free.

Demolish concrete/brick earth retaining walls forming open valve chamber to tanks, uplift rubble/debris and cart off site to tip.

Excavate carefully to expose tank shells, place materials aside, keeping top soil separate, for re-use as backfill when tanks are removed. Uplift tanks and transport on site to storage area pending disposal off site.


The Company is prepared to consider that the tanks be sold provided that the purchaser is informed of the previous history and that the vessels will only be used for the storage of oil products. The appropriate certificate as per Appendix 5 will need to be completed for handing to the Company, whether the tanks are sold or cut up as scrap.

Replace excavated earth materials back into cavity, consolidate in 0.3m layers and finish off with top soil to level off to surrounding ground area

4.6.3 Kerb Side Tank

The above vessel is buried underground and located in soft ground adjacent to the office block.

There is no record of this small tank having been cleaned out and de-sludged but site information is that the vessel has been filled with water for some considerable time.

The Contractor shall allow for pumping out the water which is to be disposed of via the interceptor. The tank is then to be cleaned and de-sludged and certified gas free prior to removal.

4.6.4 Disconnect and remove pipework to tank comprising fill point and vent line.

Excavate to expose the tank shell, which may include the breaking out of concrete cover, manhole chamber and anchor steps to foundations.

The tank is to be uplifted and externally cleaned to remove adhering soil/clay before being transported to storage area for decontamination treatment before disposal.

4.6.5 The Contractor shall allow for supply of approved material to backfill the excavation caused by the tank removal. Reinstatement is to be carried out and completed with a minimum of delay to the satisfaction and approval of the Engineer.

4.7 EARTH (CONCRETE CORE) BUND

Excavate to remove and level out the frontage earth bunds to allow access into the four (4) vertical tankage compounds.

Place earth in spoil heaps for storage until required to be used for general site reinstatement purposes of tank areas.

Excavate to dig out and demolish the concrete core wall and foundations, cart debris/rubble off site to tip. Following completion of work under Section 4.9 excavate to level out spoil heaps of earth material to reinstate vertical tank compound areas to surrounding ground levels.


4.8 SLUDGE PITS

4.8.1 To be read in conjunction with Sections 5.10 and paragraphs 5.12.3 and 5.12.4.

4.8.2 There are two known sludge pits, both located in the vertical tank compound area.

4.8.3 The Contractor shall allow to excavate for and uplift to remove the contaminated quantities of earth cover, sludge contents and surrounding foul ground area and transport on site to a location allocated for material decontamination, or direct removal from site in accordance with the conditions laid down in Section 5.10 and completed certificate to the Company as per Appendix 4.

4.8.4 For backfill of the sludge pit cavities, the Contractor may use earth material recovered under paragraph 4.7 in the correct order of sub-soil etc…, properly consolidated in 0.3m layers and finished off with corresponding depth of top soil as existing.

4.9 VERTICAL TANKAGE

4.9.1 To be read in conjunction with Section 5.9.

4.9.2 The four vertical product storage tanks have been cleaned out, gas freed and left open to atmosphere with protective mesh over manhole chambers for aeration. The tanks are above ground and cylindrical with a cone roof and are constructed in welded steel plates.

The tank steel shells are enclosed in protective brickwork from base to roof top angle and each has an open ended valve chamber with concrete roof above together with steel access staircase with protective handrail carried round top edge.

Tanks numbered 1 and 4 are 500m3 nominal capacity, the renaming two being 325m3 nominal capacity, and are located on a concrete base showing 0.15m upstand above ground level of bund area.

4.9.3 Protective Brickwork and Valve Chambers

Demolish the protective brickwork surrounding then tank shells, together with the brickwork and concrete roof of the open ended valve chambers. Uplift debris and rubble and cart direct from site to tip.

4.9.4 Method for Removal of Vertical Tankage

It is proposed that the tankage shall be demolished/dismantled from the outside.

The Contractor shall submit his 'Outline Programme’ (Section 3.10.1), his detailed methods for carrying this section of the contract work, together with the name or company title of the specialist sub-contractors who will be employed for this work, as requested on Summary of Tender document and for approval by the Company.


4.9.5 Disqualification

The Contractor shall note that failure to submit detailed information on methods to be adopted, or names and addresses of specialist sub-contractors to be used may result in the Tender being disqualified.

4.9.6 Tank Bund Drainage System to Interceptor

The Contractor shall allow to locate line and levels of the drainage systems from the vertical tank bund areas right through to the interceptor inlet chamber.

Excavate to locate and remove drainage pipes, valves etc…, together with demolition of valve chambers and inspection manholes.

Uplift debris, rubble and contaminated earth and cart to area allocated for material decontamination treatment before disposal off site.

4.9.7 Tank Foundations/Brick Retaining Walls

The Contractor shall allow to break out the concrete floors etc. and foundations of the four vertical tanks together with the demolition of the brick retaining walls located at the rear of tanks 1 and 4.

The resulting debris, together with miscellaneous quantities of drainage rubble is to be uplifted and carted direct from site to tip.

4.10 STATIC WATER TANK 140M3 CAPACITY

The contractor shall allow to drain off the contents of this sunk area, concrete construction tank and, if necessary, he shall provide a pump to discharge the water via the yard drainage system.

Demolish the concrete shell, base and foundations, uplift debris/rubb1e and cart direct from site to tip.

Excavate to level out earth bund to fill in excavations caused by removal of concrete tank and, if necessary, supply and spread additional approved backfill material to finish off at surrounding ground area level area and reinstate to the satisfaction of the Engineer.

4.11 INTERCEPTOR - SEE PARAGRAPH 5.12.2

The three compartment interceptor is of a concrete, open type, construction.

The Contractor shall allow to drain down and clean/de-sludge.

Any oil or contaminated water is to be uplifted and dealt with in the manner described for the treatment of sludge and disposed of off site in accordance with the laid down procedure - see paragraph 5.10.

The area shall be tested for gas free conditions to the satisfaction of the Engineer, or his nominated site representative before work will be allowed to proceed on demolition.

Dismantle/remove protective handrailing, demolish external and partition walls and base slab, uplift debris/rubble and cart direct from site to tip.

The Contractor shall allow to supply the required quantities of single-size shingle as backfill material to fill in and level off at ground level the cavity left by the removal of the interceptor.

The outlet pipe of the removed interceptor shall be connected into the new infill to ensure that yard drainage has free flow through the shingle into the site inlet 6£ GE drainway as now exists.

4.12 OFFICE BLOCK AND SERVICES

4.12.1 Refer to paragraph 4.1.6 and Appendix 'E' - should the contractor have made use of this building for site accommodation facilities then he shall allow to provide alternative and temporary accommodation for the remaining part of the contract period.

The alternative facilities and services shall be positioned and complete in entirety, ready for occupation and use, before demolition of the existing building is allowed to proceed.

4.12.2 The office block is of concrete construction with a corrugated asbestos sheeting roof and concrete floors and is sub-divided into various rooms, toilets and garage/store.

4.12.3 The Contractor shall allow to make arrangements for a1l services to be disconnected and removed or cut off at source.

The foul drainage outlet into the main sewer is to be located and arrangements made with the Health Authority for this to be sealed off to their satisfaction and at no cost to the Company.

4.12.4 Dismantle as necessary the corrugated asbestos roof and rain water goods, demolish the building to ground level, uplift debris/rubble and cart off site to tip, leaving the concrete floor clear and tidy.

4.13 REINSTATEMENT

The Contractor shall allow for all ground area disturbance to be reinstated with a minimum of delay consistent with prevailing weather conditions.

Particular attention is to be paid to the ground areas where the vertical tanks were located and any tracks and ruts made by vehicles using the site for contract duties.

The overall reinstatement shall be carried out and the site area left in a clean and tidy state to the satisfaction and approval of the Engineer.


4.14 COMPLETION OF TENDER

4.14.1 The following information shall be submitred with the Tender documents.

4.14.1.1 A list of sub-contractors to be used and the work to be sub-contracted.

4.14.1.2 An outline programme showing the proposed schedule for demolition/dismantling progress and detailed methods for carrying out the specialist work.

4.14.2 Viewing of the site prior to tendering will take place at the time advised on the official Company Enquiry Form.

This Pre-Tender Site Meeting will be conducted by the Company Engineer and technical or administrative queries will be dealt with at that time.

4.15.1 Administration

The site location is:

British Pipeline Agency Limited
Alnwick CRS
Alnmouth Road
Alnwick
Northumberland NE66 3PD

4.15.2 The Area Manager is:

Mr CAR Brown
North Area Office
Stockwith Road
Walkeringham
Nr Doncaster
Yorkshire DN10 4JG

4.15.3 The Engineering Supervisor for the project will be given later.

4.15.4 The Engineer is:

Mr N Heptinstall
British Pipeline Agency Limited
Lord Alexander House
Waterhouse Street
Hemel Hempstead
Hertfordshire HP1 1EJ

Telephone No: 01442 42200
Std: 01442 42200 Ext 277
The following user(s) said Thank You: Peter Kirk, PETERTHEEATER, Engineer, 698

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Retired former chartered engineer with OPA, British Gas and Foxboro Yoxall. Author of 'Fuelling the Wars - PLUTO and the Secret Pipeline Network 1936 to 2015', of various papers.
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