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Tags: chisholmtrail

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NCN51 diversion further diverted by preparations for Chisholm Trail underpass. Care needed eastbound where the new alignment mounts the unsatisfactory dropped kerb.

Preparations for Chisholm Trail underpass involve diversion of the temporary NCN51 route. Narrow, but with a 'passing place' part way along.

Digger plus archeologist (?) on site of Chisholm Trail underpass at Newmarket Road.

Preparing for the underpass of Newmarket Road near the Leper Chapel.

Coldham’s Common work has started on the Chisholm Trail.

Looks like evidence of refreshed survey work for alignment of Chisholm Trail at north side of the underpass

At left of shot, two cones and some earthwork which seem to mark the alignment of the south end of the Chisholm Trail underpass Some of the concrete casts are marked with things like NW1 which presumably indicate their placement within ... [more]

Assumed to be preparations for the Chisholm Trail underpass at Newmarket Road

Now (02/01/21) fewer culvert components in the compound - but not yet confirmed where the others have gone

Unidentifed concrete components on the cafe/underpass site.

Large & robust sections cast on cafe/underpass site and then moved aside. For the underpass???

Link under construction to the new Chisholm Trail bridge to Chesterton and Cambridge North station.

Chisholm Trail construction site

It's coming! - the Chisholm Trail

Dropped kerb at Barnwell Meadow where Chisholm Trail will meet Newmarket Road. Significant remaining upstand renders it dangerous for oblique approach.

New dropped kerb at Barnwell Meadow where the Chisholm Trail will meet Newmarket Road. It's not even close to 'flush', and potentially very dangerous for any oblique approach from the on-road painted cycle lane.

Signs of surfacing work on the new ncn51 jetty below rail and Trail bridges

Still a lot of bits of crane and counterweight on site after installation of Chisholm Trail river bridge

As well as the bearing and sliders previously identified, the Chisholm Trail river bridge appears also to rest - at least for the moment - on a pair of adjustable jacks at each end.

It seems to be quite random whether the infill triangles on the Chisholm Trail river bridge have 2, 3, or 4 fastenings.

Large crane extensively dismantled for transport after installing Chisholm Trail river bridge

Pillbox next to Chisholm Trail river bridge

More sheet piling for work on river bank or culvert, and ultimately ncn51

New sheet piling now encloses quite a big area, though whether it's the location of the culvert for ncn51 to cross the brook is still not clear.

It is now clear, I think, that the mysterious exposed re-bar on the abutments is to do with interfacing the approach ramp with the bridge surface.

Work in the north compound on Tue 10/11/20 is all to do with shipping out the parts of the big crane, but some lucky chaps have already walked on the new Chisholm Trail river bridge.

The Abbey-Chesterton Bridge on Ditton Meadows.

The elegance of the Abbey Chesterton Bridge on the Chisholm Trail emerges from the engineering works.

The Abbey Chesterton Bridge in situ at last. There were lots of people walking around today on Stourbridge Common and Ditton Meadows - exercising in the mild November air and many of them had come to look at the bridge and the cranes.

The newly sited Abbey-Chesterton Bridge - alongside the railway bridge. The photo also shows the set of points, a.k.a.turnout, which southbound (towards the camera) trains use to switch tracks after leaving Cambridge North station.

Chisholm Trail river bridge: first hints of sunshine in situ

Chisholm Trail river bridge

Chisholm Trail river bridge installed, crane not yet dismantled.

Chisholm Trail river bridge emerges from the mist: Sunday 8/11/20

Ta-da! https://t.co/cVhReDPuTU

The Abbey-Chesterton bridge in-situ.

Abbey-Chesterton bridge craning into place. At this moment the engineers were waiting for the all-clear from Network Rail to confirm that the bridge could be moved into place as it is quite close to their bridge. I think power to the ove ... [more]

Abbey-Chesterton Bridge - airborne

Building work in progress on the Barnwell cafe site that is also the location of the Chisholm Trail underpass. Subsequently believed to be for the underpass, not for the cafe building.

New scaffolding, presumably for access to the expansion bearing as the Chisholm Trail river bridge is installed.

Renewed sheet piling to facilitate culvert for ncn51 to cross the brook near the eastern end of the new jetty

Crane for Chisholm Trail river bridge - temporary landscape feature

Crane for Chisholm Trail river bridge - briefly 'part of the landscape'.

Working on the sheet piling that will facilitate the installation of a culvert for ncn51 to cross the realigned brook.

Crane to install Chisholm Trail river bridge

Crane to install Chisholm Trail river bridge

Crane for Chisholm Trail bridge lift

Crane assembly continues for Chisholm Trail bridge lift: Weds 4th p.m.

Pressing on with assembling the crane for the Chisholm Trail river bridge

Crane to lift Chisholm Trail river bridge

Crane to lift Chisholm Trail river bridge

Some (at least) of the components of the big crane are already on site

Beginning to assemble the crane that will install the Chisholm Trail river bridge

Unloading crane parts

Crane parts delivered.

Preparations for the sheet piling that will facilitate installation of a culvert for ncn51 to cross the realigned brook

Chisholm Trail river bridge detail

Chisholm Trail river bridge - installation detail with one mechanical fixture and two sliders?

New bit of concrete track on Ditton Fields, possibly to help protect underground pipes.

Coldham’s Common work has started at the entrance from Newmarket Road.

Chisholm Trail river bridge expansion bearing closeup.

Chisholm Trail river bridge showing mounting blocks and first of the thermal expansion bearings.

The three load-bearing blocks, and how they relate to the curved sides, of the Chisholm Trail river bridge.

Western end jetty/bank transition looks 'ready'.

A bit more progress on the southern bridge abutment

Posts set into river bed - line of reinstated river bank?

Large timber platform adjacent to Chisholm Trail bridge abutment

Largest yet (I think) timber platform on south bank adjacent to Chisholm Trail bridge abutment

River bank built up, rolled flat, and immediately covered with chunky timber sections

Good progress on branch line alignment of ncn51-Trail link

river bank was being built up and rolled flat - 7 October

Neat cut in the path isn't new - it was already visible in July, maybe earlier - but it's a bit more noticeable now. I don't think it's the location of the old cattlegrid - that was at the end of the boardwalk.

Something has been built, and covered in plastic sheet, behind the row of piles - but it's not one of the 8 culvert sections which are still waiting in the compound.

Progress on the ncn51-Trail link

Curved sections - perhaps formers to go with shuttering? - in the compound.

28/09/20 Shuttering being erected for more concrete at the bridge approach

Chisholm Trail now has asphalt surface at Barnwell Meadow.

Changes to the row of piles, but no obvious change to the timber platform.

Jetty handrails seem to be finished, except for linking to bridge abutments.

Western end of jetty looking more nearly finished.

Chunky timber (?) sections occupying a plausible location for a culvert for realigned brook under ncn51

Lots of waterproof membrane embedded in the brook fill??

Newly spotted in the compound, an 'asphalt paver'

Taller piles, bigger hole, beside eastern end of jetty.

Taller piles, and the hole they contain is beginning to look big enough for a culvert on the new brook alignment. Meanwhile, detailed (cosmetic?) brickwork at the end of the jetty.

No, not digging a hole: material going from the heap and into the hole beyond it. More prep for embankment?

Somewhere in there, I think, is the part of the brook that must be realigned to make room for the embankment towards the Chisholm Trail river bridge

15/09/20 - a bit more progress on ground level for eastern landfall of jetty?

Riverbank already cut on 15/08/20 - just for pontoon, or preparation for ncn51 itself?

Piles sunk into riverbed, and excavation behind them being pumped out.

Fresh excavation of river bank where ncn51 jetty will rejoin - and lots of fresh material ready to be put somewhere.

Is the brook between rail and Trail now partly filled in? Look through&beyond the railings.

Cafe / Underpass site work in progress

Plenty of work in progress at the Cafe / Underpass site at Newmarket Road

Good large-radius sweeping curves of the Chisholm Trail on the edge of Ditton Meadows

Thought to be sections for a culvert to contain the stream - in Chisholm Trail compound

Culvert components parked within the Trail compound

There's nothing yet inside the north-side concrete vee: still plenty of work to do there

Brickwork at eastern end of jetty

I hadn't previously noticed the wartime pillbox, now ready to guard two bridges not one

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