AEG-BWH Meeting, Thursday, November 20

Geologists and students:

I want to personally invite you and your colleagues to the November 20,
2014 AEG-BWH meeting featuring Bill Roman of Gannett Fleming. He will be speaking on: Using Digital Photogrammetry for Rock Slope Mapping and Characterization. The meeting is at
Brewer’s Alley in Frederick. Please register immediately via email to Patrick Hastings by Monday, November 17, 2014 at AEGBWHSecretary. Below is the full notice.

Steve Stokowski, PG
Chairman, AEG-BWH


Notice of Meeting

Announcement from the BWH Section of the
Association of Environmental & Engineering Geologists

Date: Thursday Nov. 20, 2014


Baltimore MD – Washington DC – Harrisburg PA

TOPIC: Using Digital Photogrammetry for Rock Slope Mapping and Characterization

New applications of photogrammetry have emerged with the advent of digital cameras, high-speed computers, and software capable of capturing and processing digital images and vast amounts of point cloud data. One such application is the mapping and characterization of rock slopes, which offers several advantages: 1) data can be collected safely from challenging to reach areas; 2) exposure to traffic and rockfalls is reduced; 3) a robust set of measurements can be collected quickly; 4) photogrammetry provides coordinates of each measurement; 5) discontinuities with limited exposure or having shallow dips can be measured by digitizing their trace; and 6) human error in recording the measurements is reduced. Although photogrammetry is useful for quickly and safely mapping rock surfaces and measuring discontinuity orientations, additional field reconnaissance may be necessary to collect other data depending on project requirements. Field reconnaissance is also necessary for validating the image model and mapping areas obscured by occlusion, vegetation, or other features. This presentation will cover the process of using terrestrial digital photogrammetry for rock slope mapping and illustrate how it was applied to the proposed conversion of a diabase quarry to a water supply reservoir in Virginia and highway rockfall mitigation projects in Pennsylvania.
Bill Roman works out of the headquarters of Gannett Fleming, Inc., in Camp Hill, Pennsylvania, where he is Chief Geologist in the geotechnical section of the company’s earth sciences and hydraulics practice. He earned a Bachelor’s degree at Beloit College in Beloit, Wisconsin, majoring in Geology and French. During his 31-year career with Gannett Fleming, he has used both majors, having begun his career as a marketing rep in Gannett Fleming’s international department and having worked on a variety of geotechnical projects in the realms of transportation, water supply, and environmental engineering since joining the firm’s geotechnical section in 1988. Bill is a registered Professional Geologist in Wisconsin, Pennsylvania, and Tennessee and a past president of the Harrisburg Area Geological Society.


Chair: Steve Stokowski, AEG BWH, (508) 259-3536,
Vice Chair: William Mikalik, Applied Environmental, Inc.,
Secretary/Treasurer: Patrick Hastings, Seismic Surveys Inc.,


DATE: Thursday Nov. 20, 2014
TIME: 6:00 p.m. to 8:45 p.m.


Brewers Alley
124 N. Market Street
Frederick, MD 21701 (Downtown)

Here is the Google Map link to Brewers Alley. (or here:,+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). The clearance is approximately 6”8”, which is lower
than some vans.

The 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.

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


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

To reserve a seat, please email Patrick Hastings by Monday, November 17,
2014 at AEGBWHSecretary.

AEG-BWH 2014-15 Upcoming Meetings/Field Trips
December 18 – AEG BWH Christmas Party
January 15 – Fred Davis, PhD. of The Smithsonian
February 19 – Employment Roundtable
March 19 – Presenter TBD
April 18 (Saturday) – AEG-BWH Spring Symposium (NEW! and at James Madison
May 21 – Presenter TBD


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