The eastbound M180 has partially reopened to traffic this morning after its closure led to two days of chaos.
The A18, which was being used as an alternative route, was gridlocked while delays were also reported on the A63 near Hull and the A631 close to Gainsborough as motorists attempted to avoid the tailbacks.
In a bid to ease congestion, tolls were also suspended on the Humber Bridge which will remain free to cross all weekend.
The Highways Agency has faced criticism for the road closure with Cleethorpes MP Martin Vickers saying the public "have been let down".
He said: "I have been in touch with senior officials at the Highways Agency who say they underestimated the amount of traffic. They had estimated a worst case scenario of 30 minute delays at peak time. Actually this was running at 2 hours plus and sometimes approaching 4 hours.
"The Highways Agency have massive resources at their disposal to assess traffic levels and develop computer models and yet we end up with this chaos. Yet again the public have been let down by a government agency and I shall be taking this further and raising it with ministers.
"Another worrying aspect of what the Agency told me was that they consulted North East Lincolnshire Council about the proposed works and no objection was raised. If our local authority don't appreciate the value of tourism then I despair."
As reported, the M180 is undergoing major resurfacing and maintenance work with disruption set to continue throughout August with a series of closures on both sides of the carriageway.
