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The jeopardy of Morshead Drive

By johnboy - 4 March 2012 23

morshead drive

In 2010 the banks of the Molonglo River next to Morshead drive started to shift and cracked the bikepath quite spectacularly.

Over the weekend the bikepath fell into the river and was swept away.

Russ has sent in more pictures of the damage which do raise alarming questions about the major arterial road running on top the the growing undercut pictured.

molonglo reach

morshead drive

What’s Your opinion?


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23 Responses to
The jeopardy of Morshead Drive
niftydog 9:34 am 06 Mar 12

EvanJames said :

…there’s always been a path down there, it was gravel, and actually very beautiful…

Since the willows were stripped out in the name of environmental salvation it’s a lot less beautiful down there.

Thoroughly Smashed 6:03 pm 05 Mar 12

keepitup said :

Thumper said :

john87_no1 said :

Its deffs comms conduit. Any idea why its called Parramatta rope?

It’s yellow and blue.

Colours of the Parramatta Eels.

I got it straight away.

http://www.youtube.com/watch?v=NAEA1KzDynI

keepitup 4:45 pm 05 Mar 12

Thumper said :

john87_no1 said :

Its deffs comms conduit. Any idea why its called Parramatta rope?

It’s yellow and blue.

Colours of the Parramatta Eels.

I got it straight away.

EvanJames 2:34 pm 05 Mar 12

OpenYourMind said :

While I don’t purport to be a civil engineer, I could make a good guess at what’s changed to cause this collapse. The difference is that a bunch of willows (I think) were chopped out as part of the feral plant/weed erradication around the lake.

Ah, didn’t realise that. Yep, that would certainly not help. At all. That’s going to be a very expensive piece of Tree Policing if they have to shore up Moreshead as a result of it. Didn’t they learn from the Thredbo landslide? No, I guess they didn’t.

KB1971 2:17 pm 05 Mar 12

OpenYourMind said :

While I don’t purport to be a civil engineer, I could make a good guess at what’s changed to cause this collapse. The difference is that a bunch of willows (I think) were chopped out as part of the feral plant/weed erradication around the lake. I’d guess that the loss of these trees may have allowed for greater erosion. If you take a look at Google maps you can see all the trees that used to shadow this section.

I would say that is a very good guess, they were all stripped out of there quite a few years ago.

OpenYourMind 1:01 pm 05 Mar 12

While I don’t purport to be a civil engineer, I could make a good guess at what’s changed to cause this collapse. The difference is that a bunch of willows (I think) were chopped out as part of the feral plant/weed erradication around the lake. I’d guess that the loss of these trees may have allowed for greater erosion. If you take a look at Google maps you can see all the trees that used to shadow this section.

EvanJames 12:46 pm 05 Mar 12

There’s something interesting about this. Since, I dunno, the 70s, there’s always been a path down there, it was gravel, and actually very beautiful. At some stage they’ve put in that white pipe thing, and made a proper bike path. Now, we had huge floods in the 70s, and it survived. Now it collapses, I suspect that whatever undermining they did re the pipe and bitumen path is responsible for this.

john87_no1 11:51 am 05 Mar 12

Thumper said :

john87_no1 said :

Its deffs comms conduit. Any idea why its called Parramatta rope?

It’s yellow and blue.

Colours of the Parramatta Eels.

haha the simplest of things!

unclebill 11:40 am 05 Mar 12

A big tree at the Braddon side of Northbourne flats fell and crushed the bus “shelter”. I think this is why Northbourne Ave sothbound was shut down yesterday,

Thumper 9:15 am 05 Mar 12

john87_no1 said :

Its deffs comms conduit. Any idea why its called Parramatta rope?

It’s yellow and blue.

Colours of the Parramatta Eels.

john87_no1 9:11 am 05 Mar 12

Its deffs comms conduit. Any idea why its called Parramatta rope?

Holden Caulfield 8:21 am 05 Mar 12

I’ll make sure I stay in the right hand lane on my way home this afternoon.

15km/h below the speed limit, of course.

TheFlyingScotsman 7:55 am 05 Mar 12

So I imagine they might actually start trying to ‘fix’ this strip of path around 2015, leaving a small strip of loose gravel as a single lane along Canberra’s flagship recreational bike route once again? Or could the fact that road users have the possibility of having some kind of surface damage actually trigger some genuine maintenance?

A novel approach would be making a bike path along a river flood-resistant … or even a metre higher? Or even a cycle lane on the adjacent road, instead of a ‘detour’ sign directing recreational cyclists onto an 80km an hour arterial with two lanes and a hard kerb?

One can only imagine what competence might look like…

Russ 10:24 pm 04 Mar 12

Watson said :

Impressive! What is that white stuff hanging down?

It looks to be comms conduit – in another shot that I didn’t supply you can see the remains of the white maker tape that’s installed above it. I’m speculating that it goes to the mobile phone tower in the middle of the nearby roundabout. There’s also a length of Parramatta rope hanging down the wall that might have been put there recently to support it, but again I’m only guessing.

Watson 10:10 pm 04 Mar 12

Impressive! What is that white stuff hanging down?

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