Council bosses have approved a roundabout plan on the A46 near Welton which will cost taxpayers nearly £6 million.
The move will see the current t-junction at the A46 Welton/Dunholme will be replaced by a roundabout.
It follows concerns over the frequency of crashes at the junction, which has become known as an accident blackspot.
Senior Project Leader Charlotte Hughes said: “The key benefits are that it will improve safety due to congestion and visibility improvements for all road users and will combat future development in the area.”
The £5.9 million roundabout was given planning approval in February 2018 and avoided a public inquiry last year when objections were dropped.
Three parcels of land will be purchased by the county council in order to build the roundabout.
Some £2.9 million worth of funding from the Department for Transport, £2 million National Investment Funding and £1.1 million in section 106 agreements will be used to pay for the project.
Ms Hughes said: “This is an example of good development costs that won’t change too much from this current budget.”
Councillor Robin Renshaw was concerned over the “tightness” of some of the turns and potential damage caused by HGVs, however, Ms Hughes said the project met national standards and could withstand the traffic.
Work is expected to start in July.
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