Meeting, AEG-BWH, TOPIC: Evolution of Aggregate Supply to Baltimore, Maryland

Meeting of the BWH Section of the Association of Environmental & Engineering Geologists
_www.aegweb.org_ (http://www.aegweb.org)

Date: WEDNESDAY, May 21, 2014
TIME: 6:00 p.m. to 8:45 p.m.
RESERVATIONS:
To reserve a seat, please email Kris McCandless up until Noon on Tuesday, May 20, 2014 at
_aegbwhsecretary@comcast.net_ (mailto:aegbwhsecretary@comcast.net)

TOPIC: Evolution of Aggregate Supply to Baltimore, Maryland PRESENTER: Steve Stokowski, Stone Products Consultants, Vice Chair AEG-BWH

ABSTRACT:
Aggregate for the Baltimore metropolitan area historically came from quarries in Piedmont granite, gneiss, serpentinite, and dolomitic marble, from pits below the Fall Line in S&G to the west and east of the city, and from recycled blast furnace slag at Sparrows Point. There was early use of oyster shell as road base. In the late 1800’s, stone crushing for aggregate from waste rock began at a few dimension stone quarries. Some transitioned to crushed-stone-only quarries while S&G production also increased for the
concrete market. For many decades, vertically-integrated Harry T. Campbell Sons’ dominated the market from their metadolomite quarry in Texas, MD and S&G operation at White Marsh. The same marble quarry continues to supply aggregate, but other current quarries and pits are relatively new.

Although Baltimore is a port city, almost all material was historically shipped by truck. A modern trend is for rail and barge shipments to stone yards to the south and rail to a stone yard to the northwest of the city.

Baltimore had some of the first government studies to manage preemptive land development of resources. In the 1970’s, Kuff and others of the MDGS mapped “Lands for Potential Mineral Resource Development”; in 2002 Robinson and Brown of the USGS analyzed the issue from a socio-cultural perspective.

LOCATION
Brewers Alley
124 N. Market Street
Frederick, MD 21701 (Downtown)
Here is the Google Map link to Brewers Alley. (or here:
https://maps.google.com/?daddr=124+North+Market+Street,+Frederick,+MD+21701, +USA&pw=0&t=h&z=16);
Parking is either where you can find it on the street, OR, there is a multistory,
municipal parking garage directly behind the restaurant (note the long rectangular building east
of Brewers Alley when you open the Google Map/Satellite link).

Parking garage entrance is off Church Street, a one-way heading east. If coming north on
355/N. Market Street (from I-270), cross over Patrick Street (the divider between N & S street
designations), and turn Right on Church, and left into the garage. If exiting I-70 (from Balto, for
ex), go north on North on S. East Street, cross over canal, turn left on E. Patrick, Right on
Frederick and Right on Church into garage on left.

Last Meeting until September – come and vote for your new slate of BWH officers!
COST (dinner & mtg):
Bring personal or company check or cash to the meeting and pay treasurer before presentation.
Members: $35
Non-members: $40
Students: $25 ($10 if a member company wishes to sponsor the balance of a student’s meal).

MEETING SCHEDULE:
6:00 to 7:00 pm Social, Networking and Registration
7:00 to 7:45 pm Dinner
7:45 to 8:45 pm Presentation, Questions, Closing Statements RESERVATIONS:
To reserve a seat, please email Kris McCandless up until Noon on Tuesday, May 20, 2014 at
aegbwhsecretary@comcast.net

****************

Sent By:
S. J. Stokowski, CPG
Stone Products Consultants
email: ettringite@aol.com
LinkedIn: http://www.linkedin.com/in/stevenstokowski/

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