USACE – General Edgar Jadwin Dam Safety Modification – Honesdale, PA

Client Name & Address: USACE Philadelphia, 100 Penn Square East, R Building, Philadelphia, PA 19107-3390

Dollar Value: $5,103,256.83

Year Performed: 2022 – 2023

Client Reference: Robert Abbey – Contracting Officer Representative – 570-216-6190

Manner of Execution

The overall scope of this project was for Mohawk Valley Materials, Inc. (MVM) to provide a geosynthetic liner system on part of the upstream slope and crest of Jadwin Dam. The liner system consists of geomembrane, geotextile, geogrid, and coarse aggregates. The liner installation and aggregate placement amongst other scope is to mitigate future risk. Excavation and placement of existing riprap and installation of new riprap was required. MVM completed 27,100 CY of riprap excavation from the face of the dam, excavated 27,120 CY of subgrade, installed 12,690 SY of highly textured geomembrane and 8,830 of textured membrane, 31,000 SY of geotextile, 9,210 SY of geogrid, 275 CY of concrete anchor trench, and placed 9,000+ CY of aggregate and 19,000 CY of soil. MVM modified 18 existing piezometers and installed four new piezometers; modified existing settlement and horizontal pipes; modified/demolished a USGS gauge shed, replaced 80 tons of full-depth bituminous pavement, and seeded and restored the site upon completion of earthwork. MVM prepared all pre-construction submittals to the satisfaction of USACE and submits submittals through RMS. MVM utilized Primavera to maintain the cost-loaded project schedule, which was reviewed with USACE weekly. MVM provided oversight through qualified Project Superintendent, SSHO and CQM who worked onsite at all times throughout the duration of the project.

We received the following kudos regarding our overall performance on our CPARS provided by the Corps: “The contractor has been great to work with. USACE team and MVM team both agreed that this was a successful project and a very enjoyable project to work on. The end user, USACE Operations Division is happy with the project. This project was identified as a Mega Project due to the life safety implications. It required multiple additional inspections from other USACE employees. MVM efforts showed a commitment to providing a quality project and can be counted on to be a good partner with USACE on future projects.”