Motorists using the Churchill Barriers can expect to face disruption from this week, as work began to install additional concrete blocks alongside the causeways.

The first, second and third barriers will be affected by the work, which is expected to last six weeks, depending on the weather. Drivers using the causeways are warned they might be subject to delays and speed restrictions.

All pictures: 59 Degrees North
Lowering one of the massive concrete blocks into position.	Traffic waits while the blocks are placed.