At night, westbound traffic will be diverted via the Hammersmith gyratory. For the latest updates or further information, visit www. Jump to main content Jump to quick search Jump to navigation. The planned closures are: Weekend one Overnight Friday 12 August - Saturday 13 August full westbound closure Daytime Saturday 13 August - single westbound lane closure Overnight Saturday 13 August - Sunday 14 August full westbound closure Daytime Sunday 14 August - single westbound lane closure Overnight Sunday 14 August - Monday 15 August full westbound closure Weekend two if required Overnight Friday 19 August - Saturday 20 August full westbound closure Daytime Saturday 20 August - single westbound lane closure Overnight Saturday 20 August - Sunday 21 August full westbound closure Daytime Sunday 21 August - single westbound lane closure Overnight Sunday 21 August - Monday 22 August full westbound closure.
TfL is also actively working on the design of a solution to strengthen and extend the life of the flyover over the longer-term, by introducing additional cables into the structure. This solution will be implemented well ahead of the Games.
Safety must be our top priority and we have not taken the decision to close the flyover lightly. TfL says local traffic diversions are already in place, along with Variable Messaging Signs - including on Highways Agency roads - advising drivers to avoid the area.
Traffic signal plans are in place to reduce disruption and ease traffic flow and plans are in place to divert traffic from the M4 to other routes if necessary. TfL insists it is also working closely with the relevant local authorities, including Hammersmith and Fulham to ensure local businesses and organisations are aware and disruption can be minimised.
One span could be completed every three weeks. The flyover is supported on a single central row of columns. It has 16 spans — 11 at The approach ramps at either end increase the total length to The deck is The carriageways have a crossfall of 1 in 40 towards the median strip, which carries the lamp standards and access manholes. The deck has a minimum clearance of 5m over all the road crossings.
The main structural element is a continuous hollow spine beam 7. It has curved undersides and was precast in units 2. There are units each of beams and cantilevers. These units are prestressed together longitudinally with 29mm diameter steel cables, using the Gifford-Udall system and prestressing each span individually on completion. There are four clusters of 16 tendons, one cluster on either side of each of the two inner spines — passing through mm diameter ducts within the lower flange midspan.
The central compartment of the beam carries water mains, drainage pipes and electric cables for street lighting and road heating. The 18m wide heavily reinforced concrete cantilever units act as diaphragms for the spine beams as well as supporting the mm thick precast reinforced concrete slabs 4. The slabs are joined with insitu concrete and the roadway was waterproofed with a 19mm layer of mastic asphalt.
0コメント