A one-mile section of I-97 in Glen Burnie will be widened fro four to six lanes, beginning about May 20.
Dan Collins, a spokesman for the State Highway Administration, said that although preliminary work on the $14 million project has begun, construction will not begin until about May 20.
The project is expected to be completed by early 1995.
In addition to new lanes, the project will include construction of a ramp on northbound I-895 to allow northbound I-97 traffic access to westbound I-695 and northbound Route 648.
Noise barriers will be erected along I-97 and at the Route 648 interchange.
SHA officials said the project is needed to improve safety and traffic capacity along this stretch of the Glen Burnie bypass.
The Wellham Avenue bridge, spanning I-97, will have to be replaced to accommodate the wider road.
The project may cause temporary closures on I-97 or Wellham Avenue. But Mr. Collins said construction will be handled in such a way as to lessen impact on motorists.
No work will be allowed on weekends, national holidays or the day before or after the holidays unless approved by an SHA district engineer.
A minimum of two lanes will remain open on I-97 in both directions between 6 a.m. and 8 p.m.
Traffic may be reduced to one lane during off-peak hours.
"The general feeling is that we'll try to keep traffic flowing as normally as possible," Mr. Collins said.