To meet a Nov. 25 deadine, road crews will work around the clock to complete construction on alternate passing lanes along Highway 60 from Monett to Republic.
The 24/7 schedule will begin once the rain stops, according to officials with the Missouri Department of Transportation (MoDOT).
Journagan Construction Company, who was awarded the construction contract, is laying asphalt 24 hours a day, seven days a week on the road surface and shoulders. Crews are grading and installing road signs during the day.
Motorists who travel Highway 60 should expect slight delays and reduced speed limits.
The $8.7 million contract to build alternate passing lanes from Monett to Republic was among the nation's first "shovel ready" economic recovery projects to be funded with federal stimulus money. The money accelerated construction plans already prepared.
Journagen was awarded the contract at the beginning of July and work began on July 8.
The passing lanes being added to Highway 60 will be similar to the ones that were added on Highway 37 between Monett and Cassville last year.
Closest to Monett, Highway 60 is being widened on the south side between Farm Road 1100 and Highway Z. Between Business Highway 60 and Verona, construction zones on both sides of the highway are underway.
East of Verona, construction is continuous to Aurora on both sides of the highway in four alternating sections. Between Aurora and Marionville, only one construction area is underway, on the north side near the interchange with Church Street.
Two construction zones are active between Marionville and Billings, both in Christian County, on opposite sides of the highway.