Junction Maps and Time Lapse Videos of Road Projects
1. Junction Maps
This section contains a series of maps showing the junction layouts on a number of different national routes.
Click here to see the junction layouts on the M1\N1
Click here to see the junction layouts on the M2\N2
Click here to see the junction layouts on the M4\N4
Click here to see the junction layouts on the M6\N6
Click here to see the junction layouts on the M7\N7
Click here to see the junction layouts on the M8\N8
Click here to see the junction layouts on the M9\N9
Click here to see the junction layouts on the M50
2. Project Videos
This section contains time lapse videos showing the development of a selection of NRA road projects.
Limerick Tunnel Scheme
The Limerick Tunnel scheme will take up to 27,000 vehicles per day off the streets of Limerick at start-up (increasing ultimately to 40,000). The Limerick Tunnel was built in five sections in a casting basin (dry dock) on the North side of the River Shannon. A channel was dredged across the bed of the Shannon river to allow for placement of the five tunnel sections. Then the casting basin was flooded allowing the tunnel sections to be floated out into the river and sunk into position in the dredged channel. What you are viewing is fourth tunnel section being floated out and sunk into position.
Click here to see a section of the Limerick Tunnel Section lowered into poisition in the Shannon Basin - September 2008
M50 Jct 9 (N7) Upgrade - Monastery Road Overbridge Installation
The Monastery Road Bridge over the N7 in Dublin is a Bow-string Arch Bridge (or Tied Arch), comprising two parallel independent arches. It has a suspended deck and will accommodate two-way traffic, cycle lanes and footpaths. It spans over the N7 just to the west of the Red Cow Interchange and forms one of the gateways into Dublin. The steel structure was constructed off-line and rolled into place in one 4 hour move. A specially imported heavy lift mobile jacking unit was used to shift the giant structure from one side of the N7 to the other during the night of 7th October 2008.
Click here to see the installation of the Monastery Road Overbridge over the N7 in Dublin - October 2008
N25 Waterford City Bypass - Pylon Construction
The N25 Waterford City Bypass Scheme includes the construction of a Bridge over the river Suir. The Suir River Bridge is a cable stay structure. The video below shows the construction of the pylon for the structure over a period of 1 year from September 2007 to September 2008.
Click here to see the construction of the pylon for the Suir River Bridge on the N25 Waterford City Bypass - September 2007-September 2008