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N8/N25/N40 - Dunkettle Interchange [open to traffic]

191012141587

Comments

  • Registered Users, Registered Users 2 Posts: 574 ✭✭✭Aontachtoir


    marno21 wrote: »
    Should find out in the next few weeks who will be responsible for letting us watch this daily event come to an end
    Not looking forward to my evening commute back to Douglas over the next few years while the new intersection is being built...!


  • Registered Users, Registered Users 2 Posts: 3,075 ✭✭✭questionmark?


    Not looking forward to my evening commute back to Douglas over the next few years while the new intersection is being built...!

    Just imagine how bad it will get if it isn't built. Not to mention how if the city grinds to a halt the much wanted investment won't come. No pain no gain and there will be a lot of gain from doing this upgrade.


  • Registered Users, Registered Users 2 Posts: 574 ✭✭✭Aontachtoir


    Agreed - the Dunkettle upgrade has to happen and it will be well worth it when it is. That said, looking again at Marno's picture I realised that my commute will not only take me through the Dunkettle works traffic, it will also send me straight into the future M28 works traffic too...
     453730.jpg
    I guess you're right though. No pain, no gain! 8-)


  • Moderators, Entertainment Moderators, Science, Health & Environment Moderators Posts: 14,461 Mod ✭✭✭✭marno21


    Agreed - the Dunkettle upgrade has to happen and it will be well worth it when it is. That said, looking again at Marno's picture I realised that my commute will not only take me through the Dunkettle works traffic, it will also send me straight into the future M28 works traffic too...
     453730.jpg
    I guess you're right though. No pain, no gain! 8-)
    I believe the reason Dunkettle will take 3 years is because there will be a focus on retaining the current running lanes at peak times to avoid gridlock.

    In the same way the tunnel closes now and then I can see most work requiring lane closures and/or full road closures taking place between 10pm and 6am.

    There's simply no way you could bring the tunnel down to one lane at 4-7pm in the evening. We had that in 2015 and it didn't work out very well.


  • Registered Users Posts: 1,318 ✭✭✭pigtown


    Agreed - the Dunkettle upgrade has to happen and it will be well worth it when it is. That said, looking again at Marno's picture I realised that my commute will not only take me through the Dunkettle works traffic, it will also send me straight into the future M28 works traffic too...
     453730.jpg
    I guess you're right though. No pain, no gain! 8-)

    Wait what changes will occur along the N40 due to the M28 works?


  • Moderators, Entertainment Moderators, Science, Health & Environment Moderators Posts: 14,461 Mod ✭✭✭✭marno21


    Sisk have been awarded the contract by TII to construct the Dunkettle Interchange Improvement Scheme.

    Let the fun begin!

    https://www.irishtimes.com/business/construction/builder-sisk-reports-profit-jump-of-73-to-24-7m-for-2017-1.3544316

    https://twitter.com/CISireland/status/1014494819673169922


  • Moderators, Entertainment Moderators, Science, Health & Environment Moderators Posts: 14,461 Mod ✭✭✭✭marno21


    marno21 wrote: »
    Sisk have been awarded the contract by TII to construct the Dunkettle Interchange Improvement Scheme.

    Let the fun begin!

    https://www.irishtimes.com/business/construction/builder-sisk-reports-profit-jump-of-73-to-24-7m-for-2017-1.3544316

    https://twitter.com/CISireland/status/1014494819673169922

    I have never seen a thread so quiet after good news!

    Dunkettle Interchange awarded to Sisk. Early works to begin in Q4, full start in Q1 2019. Traffic management and other planning works ongoing until then


  • Registered Users, Registered Users 2 Posts: 4,561 ✭✭✭AugustusMinimus


    marno21 wrote: »
    I have never seen a thread so quiet after good news!

    Dunkettle Interchange awarded to Sisk. Early works to begin in Q4, full start in Q1 2019. Traffic management and other planning works ongoing until then

    What’s the timescale like on it? 3 years with phased openings?

    Traffic management will be a nightmare just like M50 junction upgrades.


  • Moderators, Entertainment Moderators, Science, Health & Environment Moderators Posts: 14,461 Mod ✭✭✭✭marno21


    What’s the timescale like on it? 3 years with phased openings?

    Traffic management will be a nightmare just like M50 junction upgrades.

    3+ years likely. It'll be similar to the M50 alright I'd say but it'll be very difficult given the tight area, railway line, gradient requirements etc


  • Registered Users, Registered Users 2 Posts: 5,541 ✭✭✭Leonard Hofstadter


    Between this and the M28 finally being approved it's been an excellent week for Cork. It's not going to be fun stuck in the inevitable traffic when the work is ongoing but it will all be worth it! Finally our city is moving forward!


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  • Registered Users, Registered Users 2 Posts: 574 ✭✭✭Aontachtoir


    Interesting article in the Echo today. In response to questions about the possibility of tolling the Dunkettle interchange after its completion, the County Hall roads director indicated that tolling was not being considered for that stretch of road. He separately added:

    "TII have asked us to get a motorway reclassification study done in relation to the N40 South Ring Road and what things would need to be done there if it was reclassified. There is also an intelligent transport system being installed both in Dunkettle and on the entire length on the N40 and the various roads coming into the N40 such as the Airport Road and the N71."

    Not so sure what exactly an "intelligent transport system" means to daily road users, but this is the first confirmation I have seen in the media (ie not on this forum or the TII website) that plans are underway to reclassify the N40. Can't happen soon enough.

    https://www.eveningecho.ie/corknews/No-toll-plan-for-Dunkettle-bypass-a572d241-0586-4c02-b93e-2274fece016f-ds


  • Registered Users, Registered Users 2 Posts: 4,561 ✭✭✭AugustusMinimus


    Interesting article in the Echo today. In response to questions about the possibility of tolling the Dunkettle interchange after its completion, the County Hall roads director indicated that tolling was not being considered for that stretch of road. He separately added:

    "TII have asked us to get a motorway reclassification study done in relation to the N40 South Ring Road and what things would need to be done there if it was reclassified. There is also an intelligent transport system being installed both in Dunkettle and on the entire length on the N40 and the various roads coming into the N40 such as the Airport Road and the N71."

    Not so sure what exactly an "intelligent transport system" means to daily road users, but this is the first confirmation I have seen in the media (ie not on this forum or the TII website) that plans are underway to reclassify the N40. Can't happen soon enough.

    https://www.eveningecho.ie/corknews/No-toll-plan-for-Dunkettle-bypass-a572d241-0586-4c02-b93e-2274fece016f-ds

    I believe this is referring to new sets of gantries relaying real time traffic information.


  • Registered Users, Registered Users 2 Posts: 5,963 ✭✭✭Chris_5339762




  • Moderators, Entertainment Moderators, Science, Health & Environment Moderators Posts: 14,461 Mod ✭✭✭✭marno21


    https://www.boards.ie/vbulletin/showthread.php?t=2057826801

    I've created a thread here for discussion of the M40 reclassification, and indeed the ITS and diversion upgrades. For all non Dunkettle chat, that thread would be best.


  • Moderators, Entertainment Moderators, Science, Health & Environment Moderators Posts: 14,461 Mod ✭✭✭✭marno21


    https://www.breakingnews.ie/ireland/free-app-to-alert-drivers-to-traffic-issues-at-corks-dunkettle-interchange-859171.html

    TII to publish app to provide drivers with real time information on delays/diversions at the Dunkettle Interchange for the upgrade


  • Registered Users, Registered Users 2 Posts: 8,779 ✭✭✭Carawaystick


    marno21 wrote: »
    https://www.breakingnews.ie/ireland/free-app-to-alert-drivers-to-traffic-issues-at-corks-dunkettle-interchange-859171.html

    TII to publish app to provide drivers with real time information on delays/diversions at the Dunkettle Interchange for the upgrade

    Cant wait for the delays causes by drivers crashing while using their phone....


  • Closed Accounts Posts: 2,553 ✭✭✭Cork Trucker


    I'm dreading the backup of traffic here when the works begin and are ongoing, but I wouldn't have it any other way, the place is a bloody nightmare. Realistically speaking this should have been incorporated into the works during construction of the tunnel, hindsight is a great thing however.


  • Registered Users, Registered Users 2 Posts: 4,561 ✭✭✭AugustusMinimus


    I'm dreading the backup of traffic here when the works begin and are ongoing, but I wouldn't have it any other way, the place is a bloody nightmare. Realistically speaking this should have been incorporated into the works during construction of the tunnel, hindsight is a great thing however.

    Before the tunnel it used to be an at grade Roundabout.

    The flyover was the solution when the tunnel opened. Lack of foresight in this country is awful.


  • Closed Accounts Posts: 2,553 ✭✭✭Cork Trucker


    Before the tunnel it used to be an at grade Roundabout.

    The flyover was the solution when the tunnel opened. Lack of foresight in this country is awful.
    I vaguely remember it pre tunnel, going to Youghal Via Glounthaune,Carrigtwohill,Midleton wasn't fun, especially on a bus.

    Definitely lack of foresight.

    The Tunnel opened in 1999, went through it 2 months later for the first time, sure we though it was great until the maintenance issues began.


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  • Registered Users, Registered Users 2 Posts: 4,561 ✭✭✭AugustusMinimus


    It was truly awful before they signalised it circa 2005.


  • Registered Users Posts: 413 ✭✭EnzoScifo


    Will probably come a point where a bridge will have to be built for one carriageway of the M40 and the tunnel converted into the other a la Dartford crossing.


  • Registered Users, Registered Users 2 Posts: 6,555 ✭✭✭kub


    I wonder, if there is a bridge built down there eventually will they just shut the tunnel down?

    Just consider, when it opened first nightly maintenance shut downs were scarce perhaps twice a year.

    I am noticing these shut downs are a lot more regular now, the reason seems to be very obvious especially when you are in the North bound bore at the lowest section, there is always wet patches down there, even when the roads leading to the tunnel are dry.


  • Registered Users, Registered Users 2 Posts: 4,561 ✭✭✭AugustusMinimus


    kub wrote: »
    I wonder, if there is a bridge built down there eventually will they just shut the tunnel down?

    Just consider, when it opened first nightly maintenance shut downs were scarce perhaps twice a year.

    I am noticing these shut downs are a lot more regular now, the reason seems to be very obvious especially when you are in the North bound bore at the lowest section, there is always wet patches down there, even when the roads leading to the tunnel are dry.

    Bridge would need to be high enough to allow shipping underneath and would also need to feed traffic into the Dunkettle interchange.

    Is there enough space to do so. That would result in a very steep incline.


  • Registered Users, Registered Users 2 Posts: 6,555 ✭✭✭kub


    Bridge would need to be high enough to allow shipping underneath and would also need to feed traffic into the Dunkettle interchange.


    I wonder with the relocation of the container terminal in Tivoli down to Ringaskiddy will this mean that not only container ships but bulk ones may also go to Ringaskiddy and therefore would the high bridge be necessary.


  • Moderators, Entertainment Moderators, Science, Health & Environment Moderators Posts: 14,461 Mod ✭✭✭✭marno21


    The issue long term is that the area around Dunkettle has lots of constraints and building Ireland's biggest interchange on 5+ levels isn't feasible.

    There are a number of better solutions for when Dunkettle becomes saturated:

    1. North Ring Road - no brainer
    2. Link from M8/M40 junction at Glanmire to future N25 near Carrigtwohill/Middleton
    3. M48 outer orbital from Ballinhassig (M71) to Carrigaline (M28) with possible Cork Harbour viaduct
    4. Buses, trains, bikes


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  • Registered Users, Registered Users 2 Posts: 365 ✭✭Frostybrew


    marno21 wrote: »
    The issue long term is that the area around Dunkettle has lots of constraints and building Ireland's biggest interchange on 5+ levels isn't feasible.

    There are a number of better solutions for when Dunkettle becomes saturated:

    1. North Ring Road - no brainer
    2. Link from M8/M40 junction at Glanmire to future N25 near Carrigtwohill/Middleton
    3. M48 outer orbital from Ballinhassig (M71) to Carrigaline (M28) with possible Cork Harbour viaduct
    4. Buses, trains, bikes

    Options 1 and 4 are the way to go here. Once the NNR is complete and the Cork radial routes are upgraded to Motorway standard, funding should be concentrated on public transport. There's no need for an outer orbital route for a city the size of Cork, even one expanded to a size many multiples of it's present size.

    If we continue to experience traffic congestion post NRR completion then lack of investment in public transport will be the culprit and not a deficiency in our roads network.


  • Registered Users, Registered Users 2 Posts: 4,701 ✭✭✭Bacchus


    Frostybrew wrote: »
    Options 1 and 4 are the way to go here.

    Agreed. I'd also like option 2 though. Probably not a priority but it would be a great link to steer some traffic away from Dunkettle. I know I'd make good use of it :)


  • Registered Users, Registered Users 2 Posts: 3,241 ✭✭✭hans aus dtschl


    Bacchus wrote: »
    Agreed. I'd also like option 2 though. Probably not a priority but it would be a great link to steer some traffic away from Dunkettle. I know I'd make good use of it :)

    It would be possible to upgrade R626 or the Watergrasshill-Carrigtwohill road (Longstown hill). Personally - though I use these roads a lot - I hope it doesn't happen. The next things I want to see improved after the north ring road are the public and sustainable transport modes.
    It's crazy that we still see >90% single-occupant car usage in places like Little Island. I feel there's a lot of relatively cheap wins to be had.


  • Closed Accounts Posts: 2,553 ✭✭✭Cork Trucker


    It was truly awful before they signalised it circa 2005.

    Yes I do recall using it for a brief period before it was signalised, a free for all is what it was.

    Even using the Kinsale Road Roundabout before the flyover was installed seems hard to believe looking back, as well as Bandon and Sarsfield Road Roundabouts.

    When is the N40 due to become the M40, is it after the completion of these works?


  • Registered Users, Registered Users 2 Posts: 6,555 ✭✭✭kub


    Yes I do recall using it for a brief period before it was signalised, a free for all is what it was.

    Even using the Kinsale Road Roundabout before the flyover was installed seems hard to believe looking back, as well as Bandon and Sarsfield Road Roundabouts.

    When is the N40 due to become the M40, is it after the completion of these works?


    I thought the re-designation of the N40 to M40 was imminent, I think i read somewhere that funds were set aside for signage etc.


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  • Moderators, Entertainment Moderators, Science, Health & Environment Moderators Posts: 14,461 Mod ✭✭✭✭marno21


    It would be possible to upgrade R626 or the Watergrasshill-Carrigtwohill road (Longstown hill). Personally - though I use these roads a lot - I hope it doesn't happen. The next things I want to see improved after the north ring road are the public and sustainable transport modes.
    It's crazy that we still see >90% single-occupant car usage in places like Little Island. I feel there's a lot of relatively cheap wins to be had.

    When places like Little Island are built around the car, the result we have is what you get.

    Long term there will have to be some sort of thought put into pedestrian/cycle facilities around the JLT. The current Mahon -> Little Island route involves a tour of the city centre.
    Yes I do recall using it for a brief period before it was signalised, a free for all is what it was.

    Even using the Kinsale Road Roundabout before the flyover was installed seems hard to believe looking back, as well as Bandon and Sarsfield Road Roundabouts.

    When is the N40 due to become the M40, is it after the completion of these works?
    kub wrote: »
    I thought the re-designation of the N40 to M40 was imminent, I think i read somewhere that funds were set aside for signage etc.

    M40 redesignation should happen in the next few years. Consultants are working out the ins and outs of it at the minute.


  • Registered Users, Registered Users 2 Posts: 6,555 ✭✭✭kub


    marno21 wrote: »
    M40 redesignation should happen in the next few years. Consultants are working out the ins and outs of it at the minute.


    So there is a lot more than replacing N letters with M letters on the tarmac and replacing green signs with Blue ones ?


  • Registered Users, Registered Users 2 Posts: 23,918 ✭✭✭✭Kermit.de.frog


    Will the M8 south of Glenmire become M40?


  • Closed Accounts Posts: 2,553 ✭✭✭Cork Trucker


    Will the M8 south of Glenmire become M40?

    Between the Dunkettle Roundabout and the current Junction 18?


  • Moderators, Entertainment Moderators, Science, Health & Environment Moderators Posts: 14,461 Mod ✭✭✭✭marno21


    Will the M8 south of Glenmire become M40?
    It will presumably when the North Ring will be built. M40 will be Ballincollig-Bishopstown-Togher-Kinsale Rd-Douglas-Mahon-Dunkettle-Glanmire-Blarney


  • Closed Accounts Posts: 2,553 ✭✭✭Cork Trucker


    marno21 wrote: »
    It will presumably when the North Ring will be built. M40 will be Ballincollig-Bishopstown-Togher-Kinsale Rd-Douglas-Mahon-Dunkettle-Glanmire-Blarney

    Is it unreasonable to think of an M22-M40 link up into the future once the Macroom Bypass is built,it will only leave from Currahaly,Srelane,Lissarda remaining the same as it is now?


  • Moderators, Entertainment Moderators, Science, Health & Environment Moderators Posts: 14,461 Mod ✭✭✭✭marno21


    Is it unreasonable to think of an M22-M40 link up into the future once the Macroom Bypass is built,it will only leave from Currahaly,Srelane,Lissarda remaining the same as it is now?
    Was indicated as a priority requirement to be built before 2008 in the 1998 Road Needs Study. Now won't be complete until 2035 at the earliest.

    https://www.boards.ie/vbulletin/showthread.php?t=2057586336


  • Registered Users Posts: 132 ✭✭DerMutt


    The latest email update from the Dunkettle Interchange Project:
    • Archaeological Investigation Works are continuing at the Dunkettle Interchange site. To date, one fulacht fiadh has been uncovered. The initial sweep of the site will be completed this month and we expect that the fulacht fiadh site and any other archaeological sites uncovered will be fully resolved well in advance of Main Construction Works.
    • Detailed Ground Investigation Works will get underway in potential soft ground areas, at locations of proposed structures etc. during this month. The majority of these works will be offline but commuters will certainly notice the increased level of activity at the Dunkettle site.
    • The Main Construction Works will get underway early in 2019. In advance of that, we will be progressing works at the Silversprings Interchange on the N8, commencing early next month. These works will regularise both inbound and outbound lanes in the Interchange area. Details of traffic management measures proposed during the Construction Phase will be set out in future updates but these Improvement Works will be completed in advance of the Dunkettle Interchange Main Construction Phase.
    • Cork County Council are also advancing a scheme aimed at improving traffic flow in the general Little Island Interchange area. Tenders for the works required will be invited next month and again the intention is to complete these works in advance of the Dunkettle Interchange Main Construction Phase.


  • Registered Users, Registered Users 2 Posts: 23,918 ✭✭✭✭Kermit.de.frog


    Surely this scheme could see the N25 redesignated to M25?

    No reason not to and also add 2 extra lanes each way.


  • Closed Accounts Posts: 2,553 ✭✭✭Cork Trucker


    Surely this scheme could see the N25 redesignated to M25?

    No reason not to and also add 2 extra lanes each way.
    The N25 goes all the way to Rosslare though, and I don't think that is in the pipeline in the next decade or even longer. The government TD David Stanton doesn't appear interested in it. Going east from Dunkettle needs an M25,better Bus services and also the Midleton to Youghal railway line reinstated if they really want to tackle traffic. The current N25 is bad, I can only imagine what life must have been like before it when the current road opened in or around 1991 was it? I only have very vague memories of travelling to Youghal by bus but didn't take much notice of the road network.


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  • Registered Users, Registered Users 2 Posts: 4,701 ✭✭✭Bacchus


    You could maybe get as far as Midleton with it being motorway but after that the N25 is single lane and passes through a couple of villages. You'd need to build a whole new motorway starting from the Carrigtwohill/Midleton all the way to... well however far you want a new motorway to go... Youghal... Dungarvan... Waterford...


  • Registered Users, Registered Users 2 Posts: 5,963 ✭✭✭Chris_5339762


    DerMutt wrote: »
    The latest email update from the Dunkettle Interchange Project:
    • Archaeological Investigation Works are continuing at the Dunkettle Interchange site. To date, one fulacht fiadh has been uncovered. The initial sweep of the site will be completed this month and we expect that the fulacht fiadh site and any other archaeological sites uncovered will be fully resolved well in advance of Main Construction Works.


    How on earth has a fulacht fiadh survived all of the tunnel build and all of the other activity over the years totally undiscovered :eek:


  • Closed Accounts Posts: 2,553 ✭✭✭Cork Trucker




  • Registered Users, Registered Users 2 Posts: 4,701 ✭✭✭Bacchus


    What are the rules around such a find? Do they have to somehow preserve it? Do they just study it to the nth degree and then knock it down?


  • Registered Users, Registered Users 2 Posts: 69,551 ✭✭✭✭L1011


    There's thousands of them so document and destroy is likely to be fine.


  • Registered Users, Registered Users 2 Posts: 5,963 ✭✭✭Chris_5339762


    Works at the Silversprings Interchange on the N8

    What does this involve by the way? First I've heard of it.


  • Registered Users, Registered Users 2 Posts: 4,561 ✭✭✭AugustusMinimus


    What does this involve by the way? First I've heard of it.

    Extended the DC to the flyover.

    At the moment the DC goes down to a single lane 100m before the sliproad. Makes no sense and cause congestion.


  • Registered Users Posts: 210 ✭✭highwaymaniac


    What does this involve by the way? First I've heard of it.

    Adding a formal second lane inbound at the pinchpoint by the tool hire place.


  • Registered Users, Registered Users 2 Posts: 6,047 ✭✭✭Truckermal


    Adding a formal second lane inbound at the pinchpoint by the tool hire place.

    They really need to widen the slip road so two trucks can use it as opposed to one truck straddling it now!


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  • Registered Users, Registered Users 2 Posts: 5,963 ✭✭✭Chris_5339762


    Oh that. Makes sense I suppose. There has been an unofficial second lane there for years during rush hour, with cars poking wheels onto the opposing lane. But its worked.


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