2019 Summer Conference Sessions

(1 pdh possible)

Title: Asphalt Emulsions

Presenter: Edward Denehy, PE, The Gorman Group
Description: The presentation will explain what Asphalt Emulsions are, how Asphalt Emulsions are produced, what makes one Asphalt Emulsion different from another, and how different types of highway construction projects can be constructed using various different Asphalt Emulsions. The cost effectiveness of using Asphalt Emulsion highway products will be explored along with the reasons that Asphalt Emulsions have replaced Asphalt Cutbacks.

Title: Case Studies in Green Infrastructure

Presenter: Peter M. Hanrahan, CPESC, Everett J. Prescott, Inc.
Description: Highway officials face significant challenges dealing with erosion control issues that directly impact roadways and adjacent areas. In this session Peter M. Hanrahan, CPESC will draw on more than 41 years of industry experience to discuss specific green infrastructure projects he has been directly involved with in the Northeast and beyond. The presentation will focus on evolving technology and best management practices that now provide a significantly expanded toolbox for green solutions on challenging sites. As we continue to seek out green solutions, it is very important to have a firm understanding of the strengths and weaknesses of both traditional and emerging solutions. This session should be highly relevant to highway professionals, civil engineers, and landscape architects.

Title: Jamestown Intermodal Transportation Project – Pedestrian Brides over Chadakoin River

Presenter: Daniel D. Duprey, Jr, P.E. and Jennifer L. Michniewicz, P.E., PTOE, Clark Patterson Lee
Description: The Chadakoin River is an important feature which runs through the heart of the City of Jamestown. CPL provided design and construction inspection services for twin pedestrian bridges that are now part of the Greater Jamestown Riverwalk Trail System. This locally administered federal aid project transforms and enriches Jamestown’s downtown through developing strong pedestrian linkages between the North and South banks of the Chadakoin River. The bridges have 12-ft. wide pathways and are constructed of prefabricated weathering steel trusses and timber deck superstructures. The single span bridges are supported by reinforced cast-in-place concrete abutments founded on closed end concrete filled pipe piles. Pedestrian railing and decorative pole- mounted lighting are designed to be consistent with features of the surrounding area. The bridge connecting Panzarella Park to the north shore is 190-ft. The vertical under clearance is a minimum of 10-ft above existing 100-year design high water elevation to allow recreational watercraft safe navigation under the bridge. This structure required construction of landing areas at the approaches to tie into the Riverwalk Trail System. On the north bank, where 4-ft of earth fill was required, an approach landing was provided behind the bridge abutment and existing hillside at the same elevation as the existing asphalt trail. For the south bank approach, where 9-ft of earth fill was necessary, an approach landing was designed utilizing a reinforced concrete earth-filled retaining wall system. To provide safe mobility to the bridge surface elevation, a 120-ft approach path was constructed along the south bank of the River, following NYSDOT Critical Elements for the Design, Layout and Acceptance of Pedestrian Facilities. The second bridge is 150-ft. The vertical under clearance is a minimum of 4-ft above existing 100-year design high water elevation to limit recreational watercraft from navigating near the Warner Dam located 200-ft down river from the bridge; the minimum 2-ft of freeboard at low chord satisfies the normal hydraulic clearance requirements per NYSDOT. Because a low vertical clearance was provided, this structure required minimal reconstruction at the approaches where they tied into the existing trail. Due to the proximity of the project to Warner Dam and the NYSDEC Flood Control Project, it was necessary for CPL to obtain a Flood Control Land Use Permit (Article 16) from NYSDEC in addition to other required NYSDEC, USACE and City permits. The project also required several ROW takings and following the LAFA process.

Title: Is Rock Always the Best Solution for Stabilization?

Presenter: Rob Lawson, CPESC, North American Green
Description: This presentation will focus on replacing hard armor, like rock, with green vegetated stabilization solutions that may be less expensive to install, easier maintenance and more environmentally friendly. Will provide Installation details and design criteria from the Federal Highway Administration (FHWA) and The United States Department of Agriculture (USDA) for choosing the best erosion control solution for your stormwater project.