History in the Making on the South Rd Overpass - Will You Be #1?

Overpass ramp on the western side.

An update from the Torrens2Torrens Project today tells us that: 

"Weather permitting, the shared use path is scheduled to be open at 8am, Tuesday 31st July. There will still be some finishing works to complete along the shared use path and as such, some temporary closures of the path outside of peak hour periods (10am – 3pm) may be required, until full completion of works. We will install advance warning signage to alert users if temporary closures are required.

As noted, there is still some of the brickwork to be completed so the ramp leading up to the bridge will be narrowed using temp fencing and bollards so the workers can keep laying the bricks. Unfortunately cyclists will need to dismount due to the width of the gap on the ramp but hopefully this will only be for a couple of weeks."

Who's going to go down in history as the first to ride over? Whoever you are, we'll need the photographic evidence! ;-)

Eastern Overpass ramp, Coglin Street crossing.

Dog-leg ramp to McInnes Street,eastern side.

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Thanks Gemma - fast work on the Journey Planner! I'd like to congratulate you and everyone else at DPTI and T2T on completion of the project. It would be very interesting to see pics of the ramps and bridge at night with the lights on. Riding around it yesterday I was impressed by the general quality of design and finishing. It's not quite the 'Little Green One' in Holland but it's pretty good. Maybe we'll get a bright green sinuous structure next time around? Maybe to take the Northern Connector Bikeway over the PREXY...?

To get curves like that on any path integrated with a railway bridge would result in trains being limited to around 20km/h, not the kind of message we want to be sending in a city where public transport (especially rail-based public transport which has more synergies with cycling than conflicts) is underutilised.

The main candidates for 'next time' are the overdue one at Goodwood combining the Mike Turtur path and replacement station access (concept images did indeed show a curving design) and the shared overpass to cross the North-South Corridor near Pym St.

If the Flinders Link rail extension proceeds, the bridge crossing over Sturt Road, Flinders Drive and the North-South Corridor will gracefully curve around as it goes.

Yeah - no doubt Dave. This is a bike-bridge only though. It's on the Arnhem to Nijmegen bikeway. The Bike Dutch article I link to is worth reading. Here's a brief extract:

"The bridge is a vital part of the circa 16 kilometres (10 miles) long high-speed cycle route from Nijmegen to Arnhem called RijnWaalPad that is nearing completion. It is expected to be finished late 2014.

The Little Green One is well over 120 metres (about 400Ft) long and takes an expected daily number of about 2,000 to 4,000 people cycling over a brand new ring road (Graaf Alardsingel) north of Nijmegen with an expected number of around 50,000 to 60,000 motor vehicles per day."

It's this last bit that prompted me to mention a bike-bridge over the PREXY! The 'Little Green One' spans a not-dissimilar 6-lane highway! Adelaide needs a 'Little Green One'! Maybe several of them...

A little one of them would look noice at the Tollgate, hint hint oh Transport Minister. Could even emblazon it with SA Grate or something lively.

If you think how long it takes us to install bridges, it's interesting to note that the 'Little Green One' was installed over a 4-day weekend! Built in Belgium out of steel plate & trucked and craned in. They obviously take bike-bridge building pretty seriously in the Netherlands!

Actually the train bridge was craned in over a short period, and a Darlington Interchange bridge was rolled into place on mobile pillars. Adelaide isn't as backward as you think!


Sure Jilden - was aware of these things and yes, I probably am living in the past a bit! To tell you the truth it's probably more the provision of a Eu4.5M bridge 'just for cyclists' that I'm impressed by! As well as the colour and the shape and the fact that they trust bike riders enough not to chuck rocks at cars! ;-)

Both of those bridge installations were completed well inside the allotted time too. This allowed all the driver training runs to be completed sooner in the case of the railway bridge (potentially preventing many cancellations during the first few weeks after trains returned) and the South Road bridge at Darlington (now open to traffic) allowed road traffic to return over 24 hours earlier than scheduled.

The installation of the beams for the various intersection bridges at the T2T and Darlington projects has also gone well. These get driven in and tucked out of the way with just an oversize load escort, no road closures needed.

The careful staging of these large projects and the steps taken to keep traffic moving have been quite impressive, and it is attracting attention from elsewhere. Installing a single bridge in a wide open space is far simple than rebuilding multiple established transport corridors.

But I agree that bridges for paths should be quicker to install. That was certainly the case for the various pedestrian bridges on the Southern Expressway duplication, which were each lifted into place with just an extended lunchtime changeover period. 


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