A shipment of six containers carrying German nuclear waste reprocessed in France is due to return by rail to the site in the northern town of Gorleben.Earlier this year, anti-nuclear activists briefly held up shipments of waste from reprocessing in France by chaining themselves to the tracks.
Activists have already vowed to disturb the passage of the rail convoy, which is due to leave La Hague in northern France on Monday and will reach an unloading station in Germany this week evening.
From there, the cargo is to be taken by road for the final 20 kilometres (12 miles) to Gorleben.
Two weeks ago, a fire in trailers under an iron bridge on the transport route damaged parts of the rails. The fire, believed to have been caused by anti-nuclear activists, caused a million marks ($460,000) worth of damage.
The waste shipments were stopped for several years due to safety concerns but were resumed after a deal was reached gradually to phase out nuclear power in Germany over the next two decades.