Baltimore's Got the Subway Everyone Lovesby Ann E. Seltz-Petrash, Asst. Editor; CIVIL ENGINEERING—ASCE New York, N.Y.,
Serial Information: Civil Engineering—ASCE, 1981, Vol. 51, Issue 1, Pg. 42-45
Document Type: Feature article
Some of the innovations of Baltimore's 13.5-mile subway system are explored. The system, on which construction began in 1976, is under budget and on time. The first 7.5-mile section will open in 1982. Innovations on the system include: enlightened contract writing, with minimal use of exculpatory language; extensive use of geotechnical data, including sharing it with contractors; and extensive use of slurry walls, compaction and chemical grouting to cut underpinning costs.
Subject Headings: Subways | Compaction grouting | Chemical grouting | Innovation | Contracts | Budgets | Writing skills
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