Burnshot flyover

[doebag]

The A90 is trunked from around 100m north of the crumbling Burnshot flyover ( which can barely cope with it's own deadweight anbd is being demolished by Edinburgh Council in October) , and cyclist etc are already prohibited from it at that point.

That is a very sick looking bridge. Any idea why the restriction is placed there, rather than before the flyover and divert cyclists up the slip road ?

[GrahameCase]

Currently due to restrictions Cyclists and pedestrians are diverted down the slip behind road barriers toward an underpass. No idea why this was previously not the case


I was on the A90 this morning in traffic. Stopped short of it rather than sitting under it while in traffic. I don't trust it

[Halmyre]

Currently due to restrictions Cyclists and pedestrians are diverted down the slip behind road barriers toward an underpass. No idea why this was previously not the case


I was on the A90 this morning in traffic. Stopped short of it rather than sitting under it while in traffic. I don't trust it

You've got me worried now! But surely if it was that bad there would be some temporary arcoprops or something in there until they knock it down?

[Berk]

Most important question... is it going to be replaced?? Or even more importantly, is it just the deck, or the whole supports that need replacing??

[GrahameCase]

Most important question... is it going to be replaced??

From City of Edinburgh Council :

Question (1) Answer (1)
By Councillor Lang for answer by the Convener of the Transport and Environment Committee at a meeting of the Council on 29 June 2017

When does the Convener expect the Burnshot Bridge to reopen?

The bridge is currently closed as it has been assessed as being unable to carry any additional weight beyond its own dead-weight. Regular inspections have continued since the bridge was closed and action has been taken to ensure the bridge does not cause any risk to public safety.

The centre section of the bridge needs to be removed and this work will be undertaken in autumn 2017. As this will require the A90 to be closed (probably over a weekend) and local diversions established, planning for this is currently underway.

The removal of the centre section will allow a fuller investigation into the possible refurbishment and replacement options available. A recommended option will be presented to Transport and Environment Committee prior to the programme of work commencing.
We are therefore unable to provide a definitive date for the Bridge to re-open at the present time but can confirm that it is unlikely to re-open before the Summer of 2018.

http://www.edinburgh.gov.uk/download/me ... nd_answers


The action taken has been removing large chunks of the road surface and pavement above - partially to see how bad the issue was and also partially to lighten the load -

They were aware the bridge was at risk for quite some time before it closed -it's had work on it in the past and had been restricted to one lane across it controlled by priority signage. it finally took a chunk of concrete falling on the A90 to bring about its closure

[GrahameCase]

I reported more chunks of concrete have fallen off it overnight, lots of bits lof loose stuff in the central reservation that weren't there yesterday

[Potholes ate my car]

How big are the fallen chunks? Sizeable enough to cause a serious incident if a car happened to be passing under the bridge at the time?

[GrahameCase]

How big are the fallen chunks? Sizeable enough to cause a serious incident if a car happened to be passing under the bridge at the time?

Fairly light, the structural engineer project managing has been out and he reckons it's left over from the monthly inspections they are carrying out, i don't remember seeing it. He noted a lot of water seeping out the deck as well, but it wasn't enough to cause concern

Grahame

I have just returned from Burnshot. I believe the concrete in the central reservation was from one of the recent safety inspections, there is no sign of any additional loose concrete on the bridge soffit. There was a significant amount of water coming through the deck following the rain, but this in itself isn't a concern at the moment.

As you are probably aware, the bridge is due for demolition in late October.

Regards,
Stephen.

[GrahameCase]

Right, now have firm dates for demolition and a project update

A90 Burnshot Bridge
Progress Update No 6
27 October 2017

Introduction
This note provides an update to Progress Update No 5 (attached for ease of reference). This will be the final update prior to demolition of the bridge.

Monthly Inspections
These inspections are ongoing to closely monitor the condition of the bridge soffit. The next inspection is on Wednesday 1st November. Depending on the weather in November, this may be the final inspection prior to demolition.

Structural Health Monitoring
The bridge joints may be prone to damage from freeze-thaw action during November and so Structural Health Monitoring (SHM) equipment will be installed by a specialist contractor on 1st – 2nd November. This will enable the Council’s engineers to remotely monitor the temperature within the joints, and any movement of the central span, in the lead-up to demolition.

Traffic Diversion
Installation of the new semi-permanent signage is almost completed on site, and so much of the temporary signage has now been removed. The pedestrian/cyclist barrier on the Northbound slip road will remain until such time the permanent footpath/cycleway is installed.

Site mobilisation
The Contractor, Balfour Beatty will be starting on site on Monday 30th October. Initial work will be to secure the site with fencing, provision of welfare facilities, installation of site cabins and some further site clearance.

Following this will be the installation of a temporary steel service bridge, on concrete foundations. To facilitate these works, there will be some single-lane closures during the day, in addition to night-time carriageway closures. Daytime closures will be timed to avoid the morning and evening peak traffic. Approximately 2000 tonnes of crushed rock will be delivered to site which will be used to protect the carriageway during the demolition.

Once the temporary bridge is installed, the public utilities ducts/cables currently crossing the A90 will be moved from within the existing bridge, to the temporary bridge. There should be no disruption to residents’ power, phone or broadband during this work. This work will take place between 10th and 24th November. The temporary bridge will not be accessible to pedestrians, and will be closed-off to prevent any unauthorised access.

Demolition Works
The demolition weekend has now been confirmed. Demolition works will take place between 20:00 Friday 24th November, and 05:30 Monday 27th November.

The A90 will be closed for this entire time, with all traffic being diverted onto the adjacent on- and off-slips. Whilst the diversions will not add any additional distance to journeys, motorists should allow additional time during the day on Saturday and Sunday. Routes for pedestrians and cyclists will not be affected during the works, however bus-stops will be temporarily relocated.

The bus-stop on the A90 northbound will be relocated to the junction at the end of Burnshot Road.
The demolition will be undertaken by a sub-contractor called Beattie Demolition, who are experienced in this type of work having recently demolished the B800 bridge as part of the south approach to the Queensferry Crossing.

Beattie Demolition will close-off the entire site and no access will be available for members of the public. The concrete and steel reinforcement will be ‘munched’ using specialist machinery. It will fall onto the protective layer over the carriageway below, and be transported away from site.
The road will be open to traffic for the Monday morning rush hour and over the subsequent days, the contractor will demobilise from site.

[Halmyre]

The temporary warning signs are in place indicating that the demolition is definitely set for this weekend.

It strikes me (not literally I hope) that the nearby B924 flyover is of a similar vintage to Burnshot, so what condition is it in?

[Potholes ate my car]

The temporary warning signs are in place indicating that the demolition is definitely set for this weekend.

It strikes me (not literally I hope) that the nearby B924 flyover is of a similar vintage to Burnshot, so what condition is it in?

I seem to recall the issue of the nearby flyover being raised with a local councillor and it wasn't found to be in such a poor condition. I don't have the details to hand though.

[GrahameCase]

The temporary warning signs are in place indicating that the demolition is definitely set for this weekend.

It strikes me (not literally I hope) that the nearby B924 flyover is of a similar vintage to Burnshot, so what condition is it in?

Work was carried out on it a few years back and they narrowed it to one lane - i don’t think they have the same issue with the joint being in the middle of the bridge deck-

[stuartf]

The bridge is gone, in time for rush hour this morning, although there seems to be still some work going on presumably to shore up the sides. There's just the very temporary-looking steel structure for the utilities.

Hopefully they'll start work on something at least for pedestrians and cyclists next spring - they've spent a lot of money on the cycle path to Queensferry and currently there's this big hole next to it. Meantime, I don't know if people in Kirkliston enjoy the reduction in traffic or would really quite like to drive to north Edinburgh.

[djw1981]

A fair chunk Kirkliston folks seem to be heading along Burnshot Rd, up Standingstane Rd to Dalmeny then following B924 to join one junction north, or going to Burnshot bridge then up A90 on junction and doubling back. Friends who live near Burnshot road still reckon trafic levels of locals are at about 75-80% of previous.

[Halmyre]

The temporary warning signs are in place indicating that the demolition is definitely set for this weekend.

It strikes me (not literally I hope) that the nearby B924 flyover is of a similar vintage to Burnshot, so what condition is it in?

Work was carried out on it a few years back and they narrowed it to one lane - i don’t think they have the same issue with the joint being in the middle of the bridge deck-

There's a couple of what look like non-original steel box sections underneath it. Now that I think about it, I vaguely remember strengthening work being carried out.

[Potholes ate my car]

A fair chunk Kirkliston folks seem to be heading along Burnshot Rd, up Standingstane Rd to Dalmeny then following B924 to join one junction north, or going to Burnshot bridge then up A90 on junction and doubling back. Friends who live near Burnshot road still reckon trafic levels of locals are at about 75-80% of previous.

I tend to go along to Burnshot bridge then up and double back, but I have gone through Dalmeny a couple of times as recommended by Apple maps. There doesn't seem to be much time difference between the two routes, but straight along to Burnshot is easier.

[orudge]

Slightly off-topic but I drove into Edinburgh and back last night for the first time in ages, and the first time in the dark in a long time, and found the standard of the ADSes to be incredibly poor - I don’t think I can copy a street view link out of the Google Maps iOS app but the Kirkliston sign for instance had lost all its reflectivity and was pretty much impossible to read until you got right next to it. Looking at the sign in daytime though it’s just as bad! Anybody would think road maintenance is not high on the priority list at the City of Edinburgh Council...

Enjoyed going over the bee crossing, but found the eye-level lights at the side of the bridge to be more annoying that anything else!

[GrahameCase]

Yes the ADS signage is horrific at night and also the road studs are all broken - and the white lining which marks the lanes is not very good at night. I’ve been complaining about it to Edinburgh council for ages. It’s one of the most poorly maintained dual carriageway sections in east central Scotland

[Halmyre]

Maybe they'll get round to it when they've finished the mammoth task of adding a few hundred feet of cycle lane to the Kirkliston slip.

[A72]

Anybody would think road maintenance is not high on the priority list at the City of Edinburgh Council...

It isn't.

Maybe they'll get round to it when they've finished the mammoth task of adding a few hundred feet of cycle lane to the Kirkliston slip.

They blew all their cash on '20' roundels.