Road closure planned for U.S. 421 seal coating operation on or after Monday, August 23, 2021

PULASKI/WHITE COUNTIES, Ind – The Indiana Department of Transportation announces a seal coating operation for U.S. 421 between State Road 16 and State Road 114 beginning on or after Monday, August 23. 

There will be soft road closure of State Road 16 in this location, with local access maintained through traffic control. Motorists should expect delays in the area or seek an alternate route using other state roads. The official detour will follow State Road 16, U.S. 231 and State Road 114. 

This work should take approximately four days, but the schedule is weather dependent and subject to change. INDOT urges drivers to stay alert near crews and follow traffic directions carefully. Motorists are encouraged to allow extra time when driving through this area and should slow down and drive distraction-free through all work zones.

About Seal Coating:

When seal coating, work is most often completed under road closures to prevent damage to both vehicles and the roadway. If driving through a seal coating work zone, drivers should take extra caution, drive slowly and allow additional space between vehicles to prevent stone chips from damaging windshields or paint.

During these operations, the existing pavement is coated with liquid asphalt, which seals cracks and provides waterproof protection. Aggregate is applied over the seal coat. Once the seal coat has cured, crews will sweep the highway clear of loose stone, apply a fog seal surface coat and paint pavement markings.

This treatment is designed to extend the life of the pavement below by 3-5 years and lower maintenance costs. Seal coating is a cost-effective pavement preservation technique that is utilized across the state of Indiana, saving an estimated $6-$14 in taxpayer expenditures for every $1 invested in extending the life of a roadway.

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About the Indiana Department of Transportation
Over the past 100 years, INDOT has transformed the state of Indiana into the Crossroads of America we know today. With six district offices and 3,500 employees, the agency is responsible for constructing and maintaining more than 29,000 lane miles of highways, more than 5,700 bridges, and supporting 4,500 rail miles and 117 airports across the state. Indiana once again ranked #1 in the U.S. for infrastructure in CNBC’s 2019 “America’s Top States for Business” ranking. Learn more about INDOT at

About the Indiana Hands-Free Law
On July 1, 2020, Governor Eric J. Holcomb signed the Indiana Hands-Free Law to reduce distracted driving across the state. Since then, drivers have been prohibited from holding a mobile device while their vehicles are in motion. With help from the Indiana State Police and other law enforcement agencies, over 5,400 citations and more than 10,500 warnings have been issued. For more information on Indiana’s Hands-Free Law, visit

SOURCE: News release from Indiana Department of Transportation