It starts tomorrow (Wednesday) and is to allow the re-start of “essential” under-deck maintenance at the south end of the bridge.
This is a continuation of work which began in December but was not completed prior to Christmas due to adverse weather conditions.
David Bishop, BEAR Scotland’s south east unit bridges manager, said: “BEAR Scotland will be supporting Forth Crossing Bridge Constructors to recommence this essential maintenance on behalf of Transport Scotland.
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“To keep road users and operatives safe during these works, the same traffic management arrangement to that implemented prior to Christmas will be installed.
“This was shown to have very little impact on northbound traffic.”
Northbound abnormal loads will be required to divert via Clackmannanshire Bridge during this period.
Two lanes of traffic will be maintained in both directions, except during the installation and removal of the temporary traffic management at the start and end of the period, when traffic will be restricted to one lane overnight from 10pm to 6am.
A 50mph temporary speed limit will be in force throughout the period and a free vehicle recovery service will be provided to attend to any breakdowns within the extent of the roadworks.
The southbound carriageway will not be affected by these works.