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Old May 23rd, 2015, 06:02 AM   #14681
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Quote:
Originally Posted by vandermast View Post
Reid erindale needs two loop ramps so it will probably be more expensive than a standard diamond
One can see a Tonkin Highway/Gulidford Road style of interchange for Reid/Erindale looking at the reserve.

The existing intersection would probably have to be moved to a temporary configuration in order to provide sufficient construction space for the bridge further adding to the cost.

It's possible he discrepancies between the contracted cost and project funding for the Reid upgrades and the Mitchell Freeway extensions could be an accounting convenience (somewhere for the feds to allocate the $499 extra given to the state in budget).
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Old May 24th, 2015, 05:20 AM   #14682
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some bridge abutments have been erected for the Berkshire Road intersection with Roe Hwy
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Old May 24th, 2015, 09:52 AM   #14683
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They've started clearing the scrub west of Mitchell Freeway at the intersection with Reid Hwy
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Old May 24th, 2015, 10:09 AM   #14684
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Quote:
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They've started clearing the scrub west of Mitchell Freeway at the intersection with Reid Hwy
Same at the Mirrabooka/Reid Hwy intersection when I went past last w/e.
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Old May 24th, 2015, 10:40 AM   #14685
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Quote:
Originally Posted by DiamondBob View Post
Same at the Mirrabooka/Reid Hwy intersection when I went past last w/e.
Isn't mirrabooka/Reid a grade seperate already? Do you mean Malaga/Reid?
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Old May 24th, 2015, 11:04 AM   #14686
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Quote:
Originally Posted by Dunne87 View Post
Isn't mirrabooka/Reid a grade seperate already? Do you mean Malaga/Reid?
Yes I think he does, I mentioned it yesterday also, full steam ahead.
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Old May 24th, 2015, 12:28 PM   #14687
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Yeah sorry. Typed the wrong intersection.
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Old May 28th, 2015, 12:52 PM   #14688
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Whoever did the video graphics for the Tonkin grade separations didn't worry too much about the geography of the broader Perth area.



The pan around the Morley Drive interchange shows topography to the west that's very much only for the bravest of surfers. Anyone else would want to head for the hills in the opposite direction as a matter of priority.

https://www.youtube.com/watch?v=vls8mILm4Qg#t=119
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Old May 28th, 2015, 01:34 PM   #14689
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How is the state government paying for this one. Or was this part of our debt already?
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Old May 28th, 2015, 04:57 PM   #14690
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Quote:
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How is the state government paying for this one. Or was this part of our debt already?
Abbot said he'd fund it if we axed a rail project and burnt 50 busses.
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Old May 28th, 2015, 05:22 PM   #14691
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What rail project was that? The airport one?
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Old May 28th, 2015, 05:45 PM   #14692
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Quote:
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What rail project was that? The airport one?
Let me help you with this...

Abbot also said we had to sacrifice 500 refugee babies.
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Old May 28th, 2015, 05:57 PM   #14693
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Ahh that's no problem for Colin. So we will get everything we need if we sell all the first born children
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Old May 29th, 2015, 04:08 AM   #14694
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Quote:
Originally Posted by Dunne87 View Post
How is the state government paying for this one. Or was this part of our debt already?
The $1.12bn budget for Northlink WA is 80% funded by the federal government.
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Old May 30th, 2015, 03:50 PM   #14695
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http://www.perthnow.com.au/news/west...-1227376209959
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Old May 31st, 2015, 04:52 AM   #14696
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Quote:
Originally Posted by DiamondBob View Post
The media have been a little slow in coming to the party on that.

That information has been on MWRA's PFL page for over a week.
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Old May 31st, 2015, 06:06 AM   #14697
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Quote:
Originally Posted by drsmith2 View Post
That's a good place to start.

Beyond the southern end, 3-lanes in each direction between the Northlink and Gateway projects can only be achieved with widening (duplication) of the Tonkin bridges over Guildford Road and the Midland rail line.

The Tonkin/Collier SPUI bridge looks a structure on a similar scale to the Tonkin/Horrie Miller SPUI bridge.

The bridge footprint for Tonkin over the roundabout at Morley Drive is absolutely huge and the four bridge decks cater for the ultimate 4-lanes in each direction Tonkin design. Some serious $$ are going into that. North of the Reid/Tonkin cloverstack the same roundabout design has been chosen for all interchange connections on the Swan Valley bypass with the exception of the Gnangara Road parclo.

https://www.mainroads.wa.gov.au/Publ...5E23279469.JPG

North of the Ellenbrook interchange, the funded design caters for a single carriageway with no connection at Stock Road, the Neaves Road interchange with 2 of the 4 bridges over the roundabout and a direct T-junction connection to the existing Brand Highway under where the ultimate bridge would go. At Stock and Brand that doesn't make a lot of sense and I suspect interim designs will be worked out once it is decided how much of the ultimate design will be built. This could range from,

1) At-grade signalised intersection at Stock (the freight industry will hate that in conjunction with a toll) and a signalised T at Brand displaced from the ultimate design bridge footprint.

Depending on funds left over from the funded contracts, priority would then range upwards from 1 above to,

2) the above but with the dual carriageway extended to Stock Road.

3) 2 above with the interchange at Stock Road instead of traffic signals.

4) 3 above with the dual carriageway extended to Brand Highway.

5) Ultimate design build (Muchea configuration/bridges).

Given the nature of the interchange structures in particular it will be interesting to see what's left over from the $1.12bn budget in the currently funded components. Excluding the Whiteman/Yanchep flyover, the ultimate design has 38 bridges (each roundabout interchange has 4) of which either 15 or 17 are unfunded depending on whether or not the full Promenade interchange bridges are funded (indicated on the map above but that doesn't make sense with only a single carriageway north of that interchange). 9 of the unfunded bridges are associated with the ultimate design in the vicinity of Muchea.

I suspect either 2 or 3 above are most likely with 1 or 4 next and ultimate design (5) least likely without significant additional funding in my view.
One possible option I forgot to mention in the above was one between 4 and 5 which would provide an interim solution for a free flowing connection between the Swan Valley bypass and the GNH past Muchea with a single carriageway bridge over the existing Brand Highway. The bridge would cater for 2 lanes plus an emergency stopping lane so it's suitable for duplication in ultimate freeway configuration. In interim single carriageway configuration, the stopping lane width could instead be used in the central median with wire rope barrier separating the opposing lanes of traffic as a safety feature.

By also providing interim south side ramps onto Brand for access to/from Perth and a T-junction to the north to connect the existing GNH (to/from Bullsbrook) to the Swan Valley bypass, all connections would be available to traffic. The at grade connections could also serve as an alternative Swan Valley Bypass/GNH connection in the event of a traffic incident on the bridge.

I'll call it option 4.25.
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Last edited by drsmith2; May 31st, 2015 at 06:16 AM.
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Old June 2nd, 2015, 11:59 AM   #14698
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We now clearly have two very different costings for the Reid Highway works.

Dec 24 2014: $65m,

Quote:
“Georgiou Group Pty Ltd. has been awarded a design and construct contract for $65 million to undertake these works which will have a major impact on improving traffic flow in these areas,” Mr Nalder said
http://www.mediastatements.wa.gov.au...tt&StatId=8958

Today: $108m,

Quote:
It is part of a much larger $108 million project which includes the duplication of the highway from Duffy Road to Erindale Road, and the widening of the highway from Marmion Avenue to Duffy Road, which at its peak will employ up to 110 suppliers, subcontractors and other workers. It involves $67.2 million in Federal funds for Reid/Malaga roads and $40.8 million in State funds.
http://www.mediastatements.wa.gov.au...tt&StatId=9570

What would be the reason(s) for the difference ?

From what I can tell, there's no significant change in project scope between the two announcements.
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Old June 3rd, 2015, 04:48 AM   #14699
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ABC piece on Elizabeth Quay including a recent image,

http://www.abc.net.au/news/2015-06-0...ogress/6517136

Aerial Photography WA May update,

http://aerialphotographywa.com/eliza...aerial-images/

Last edited by drsmith2; June 3rd, 2015 at 04:56 AM.
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Old June 3rd, 2015, 06:56 AM   #14700
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The West called it a "rare" view. Can't be looking at the right forums.

https://au.news.yahoo.com/thewest/a/...-construction/
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