The Hampstead bypass is one of six major highway projects in Maryland that will be getting money for engineering work but not construction, a state highway official said yesterday. No money is budgeted for construction on any of those projects, said Neil Pedersen, director of planning for the State Highway Administration. Mr. Pedersen and other state transportation officials met with the county commissioners and local officials at the County Office Building yesterday. Carroll officials have pushed for about 30 years for a bypass that would alleviate truck and rush-hour traffic through Hampstead. "It doesn't seem like we've made progress from last year," said Hampstead Mayor C. Clinton Becker. Commissioner Julia W. Gouge said it can take 20 minutes to drive one mile on Route 30 through town at rush hour. Mr. Pedersen said he didn't know when construction money for the bypass might be available. He said the SHA is studying alignments for a Manchester bypass and will have a report ready for the public in March.