Portfolio

Environmental Dredging Projects - Project: Millennium Bulk Terminals Interim Action
Project: River Mile 13.5 Remedial Action Implementation
Project: Dry Dock Basin 6 Dredging
Project: Zidell Bank and Sediment Remediation
Project: Alcoa Vancouver Sediment Remediation
Dredging Experience Projects - Project: Depot Slough Clamshell Maintenance Dredging 2016
Project: Berths 205, 206 and 401 Maintenance Dredging 2015
Project: West Coast Clamshell Maintenance Dredging 2015
Project: Chetco Mechanical Dredging 2012
Pile Driving Projects - Project: United Harvest Modernization Marine Structures
Environmental Dredging Projects - Project: Millennium Bulk Terminals Interim Action

Environmental Dredging Project

Owner: Millennium Bulk Terminals
Prime Contractor: HME Construction, Inc.
Regulatory Oversight: Department of Ecology
Date: September 2016- October 2016
Jobsite: Longview, WA

Description:
The Millennium Bulk Terminals interim action project purpose was to implement the remediation of a localized area of contaminated sediments identified adjacent to the former Reynolds Metals Reduction Plant. Work performed began with identification and removal of debris from within the project prism.

The debris removed was placed onto a watertight containment barge for disposal. HME Construction, Inc then began dredging and removing 5,000 CY of sediment over a 35,000 sq. ft. area in the vicinity of an existing outfall. The contaminated sediment was then dewatered and transported by barge to a facility in The Dalles, Oregon where it was trans-loaded into trucks and taken to an upland disposal site identified by the Department of Ecology. All water accumulated during the dredging phase was pumped into containment tanks (lash Barges) to allow suspended sediments to settle before pumping water through a carbon filter system to an onsite tank where it was tested before pumping into the facilities containment pond.

Utilizing both multi-beam and single-beam survey equipment to ensure precise placement, the removal area was then capped with an equal quantity of lab analyzed clean Columbia River sand. Although the project presented many challenges, such as a large quantity of debris removal, working around an existing outfall and a high river flow rate in the area of cap placement, HME Construction, Inc. was able to complete all phases of work in under 10 days. Water quality monitoring was conducted by a 3rd party daily with no reportable exceedances.

Project: River Mile 13.5 Remedial Action Implementation

Environmental Dredging Project

Owner: Portland General Electric
Prime Contractor: HME Construction, Inc.
Regulatory Oversight: Federal Energy Regulatory Commission’s (FERC)
Date: September 2015- October 2015
Jobsite: Portland, Oregon at River Mile 13.5

Description: The remedial action implementation at RM 13.5 consisted of installing an in-water sediment isolation cap over an area of approximately 57,000 sq ft. HME began by removing debris and cutting off abandon stub piling from within the project prism. All debris removed was loaded onto water tight containment barges and transported to the HME facility for disposal. HME then placed approx. 8,000 cy of sand cap, 1400 cy of body armor, 215 cy of toe armor and 450 cy of shoreline habitat.

RTK GPS topo surveys and multi-beam and single-beam bathymetric surveys were conducted daily throughout the project to ensure accurate placement of cap and armor materials. Noise monitoring, dust monitoring, and 24 hr web accessible turbidity monitoring were conducted daily with no reportable exceedances.

Project: Dry Dock Basin 6 Dredging

Environmental Dredging Project

Owner: Vigor Industrial
Prime Contractor: HME Construction, Inc.
Regulatory Oversight: NOAA and NMFS
Date: July 2015
Jobsite: Portland, Oregon at Willamette River Mile 8.2

Description: HME dredged 28,000 cubic yards of sediment, with 10,000 cubic yard (CY) of sand cap. Dredged sediment was transported to The Dalles, Oregon by barge where it was trans-loaded into trucks for disposal at the upland waste disposal site designated by the Department of Ecology.

The project began with the deployment of a turbidity/debris boom. HME then began the dredging phase of the project and successfully removed and disposed of 28,000 CY of sediment over an area of 272,000 sq ft. All water accumulated during the dredging phase was pumped into containment (lash) barges for proper treatment and disposal.

Once dredging was completed HME installed a 1' sand cap over much of the area. Dredge crews worked closely with officials at Vigor and also with NRC to accommodate vessel traffic during the operation. Water quality monitoring was conducted and reported to both Vigor and the department of ecology, with zero exceedances through the duration of the project. In order to achieve the proper dredged depth and cap coverage, HME utilized several QC instruments including an electronic tide gauge and single-beam bathymetric condition surveys.

Project: Zidell Bank and Sediment Remediation

Environmental Dredging Project

Owner: ZRZ Reality, Inc.
Prime Contractor: Quigg Brothers, Inc.
Sub-Contractor: HME Construction, Inc.
Regulatory Oversight: USACE, Portland District, OR DEQ, NMFS
Date: July 2011 – October 2011
Jobsite: Zidell Willamette River Waterfront, Portland OR

Description: The Zidell Remediation project was located in the heavily urbanized South Waterfront District along the Willamette River in Portland, Oregon. Historically, the site was used for industrial activities related to ships (building, dismantling, repairing, and salvaging). Several decades of these activities resulted in contaminated sediments containing asbestos, metals, PAHs, and PCBs both upland and in-water.

Working as a subcontractor to Quigg Brothers, HME conducted in water placement of a sediment cap consisting of 78,000 CY of Columbia River sand and over 50,000 CY of rock armor materials covering an area of approximately 600,000 square feet.

In addition to a very complex cap design with tight tolerances including several different types of armor placement, shallow river bottom conditions and placement under the Ross Island Bridge, the high profile project had to be completed within the four-month in-water work window. Other challenges for the project were the construction of the Tri- Met Portland-Milwaukie Light Rail project that impeded through the center of the placement site and was scheduled to begin construction within the same work window.

HME diligently was able to complete a 700-foot portion of the site in five short weeks to allow construction of the Tri-Met Light Rail Project begin as scheduled. The remaining areas of the site were then completed three weeks before the end of the in-water work window.

Equipment provided to the project consisted of Derrick Barges “Sea Vulture” and “Sea Hawk” both equipped with smooth lipped clamshell buckets and rock skip-boxes for armor and sand placement. Seven material barges ranging from 1,500 ton to 3,000 ton were used for material transportation. The tug “Husky” provided both on-site and off-site support for all marine equipment. Daily hydrographic progress surveys conducted provided quality control of the cap placement.

Specifications of the project did not allow spuds or anchors to penetrate within the sediment cap boundary; therefore both Derrick barges were equipped with an anchor system with challenging anchor placement do in part to several City of Portland water and utility under water crossings and the extents of the sediment boundary.

Throughout the course of the project Zidell still was able to conduct normal operations with the shipyard facility. A newly constructed ABS fuel barge was launched in early October.

Project: Alcoa Vancouver Sediment Remediation

Environmental Dredging Project

Owner: Former Aluminum Alcoa of America (Alcoa)
Vancouver Works, Vancouver, Washington
Engineer: Anchor Environmental
Prime Contractor: Tetra Tech EC
In-water Contractor: Hickey Marine Enterprises, Inc.
Regulatory Oversight: EPA, WA DOE
Date: November 2008-March 2009
Jobsite: Former Alcoa Site, Vancouver, WA

Description: Dredging 800 cubic yards Subtitle C contaminated sediment, transfer to re-handle box, and loading into trucks for transport to hazardous material landfill in Arlington, Oregon. Dredging 5,000 cubic yards Subtitle D sediments and transport by barge to The Dalles, Oregon, offload to re-handle box for loading into trucks and transport to the Wasco County Landfill for disposal. Dredging approximately 22,000 cubic yards Industrial Level sediments, transfer to re-handle box and loading into trucks for upland disposal in designated landfill area.

Dredge approximately 12,000 cubic yards of Beneficial Reuse sediment and transfer to a re-handle box for onsite upland disposal. HME performed dredging in all dredge unit locations specified along with a material placement plan at and below Elevation +6. Subtitle C, Subtitle D, and Industrial Level dredge units required management of all excess water totaling 1.4 million gallons which were pumped into the water management barge, then pumped to an upland onsite water treatment system where it was treated, filtered and tested prior to discharge back into the river.

Beneficial Reuse dredge units allowed decanting of water overboard prior to offload of material to upland disposal site. Capping of all dredge units with approximately 43,000 cubic yards Enhanced Natural Recovery Sand mined in accordance with USACE permit for Columbia River channel maintenance by HME and subcontractor. 3,000 feet of bank stabilization with placement of one foot of gravel transition layer and 3 feet of armor rock.

Placement of an armor rock berm at toe of bank for additional stabilization due to steep slope and high current condition. HME provided all in-water services, including, but not limited to:

  • Bathymetric Surveying (by third party under contract to Subcontractor)
  • Removal & Disposal of Piles and Abandoned Sewer Pipe
  • Locate & Protect Clark County Public Utility District Outfall
  • Dredging and offloading of all materials to lines and grades of Bid Documents. (Industrial Level
    Sediments, Beneficial Re-use Materials and TSCA Level Sediments (Subtitle C) Materials at Dock on Project Site; TSCA Level Sediments (Subtitle D) Materials and Clam Removal Area Sediments (Subtitle D) to be transported via Barge to Waste Connections, The Dalles, Oregon facility and offloaded)
  • Collection and transfer of all water collected during Dredging of identified Subtitle C, Subtitle D, and Industrial Level Materials
  • Furnish, Install & Maintain Debris and Containment Boom
  • Delivery (via barge from Subcontractor’s facility) and placement of Enhanced Natural Recovery Sand, Gravel Transition Layer, Erosion Protection Material, and Filter Layer Material
Dredging Experience Projects - Project: Depot Slough Clamshell Maintenance Dredging 2016

Dredging Experience Project
Prime Contractor: HME Construction, Inc.
Regulatory Oversight: US Army Corps. Of Engineers
Date: August 2016- September 2016
Jobsite: Depot Slough, Yaquina River, Lincoln, City Oregon

Description: HME Performed clamshell maintenance dredging at Depot Slough, Newport, OR removing approximately 50,000 cubic yards of material, transporting and in ocean disposal. The project was successful with no environmental issues and completed ahead of schedule.

Project: Berths 205, 206 and 401 Maintenance Dredging 2015

Dredging Experience Project
Prime Contractor: HME Construction, Inc.
Date: July 2015
Jobsite: Terminal 2 and Terminal 4 Portland, OR

Description: Maintenance dredging of approximately 11,957 CY were dredged at Terminal 2, Berth 205 and 206 on the Willamette River to a design elevation of -39 CRD. Approximately 10,942 CY were dredged at Terminal 4, Berth 401 to a design elevation of -41 CRD and placing a 9-inch sand layer cover over the dredge area.

Dredged material was transported to the in-water placement site downstream of West Hayden Island, Columbia River mile 102. HME segregated and disposed of debris at a Port-approved upland disposal site, placing woody debris suitable for mitigation placement at a designated upland site on West Hayden Island. All work was completed on time and with no environmental impacts.

Project: West Coast Clamshell Maintenance Dredging 2015

Dredging Experience Project
Prime Contractor: HME Construction, Inc.
Regulatory Oversight: US Army Corps. Of Engineers
Date: August 2015- October 2015
Jobsite: Gold Beach, Curry County, OR; Port Orford, Curry County, OR; Ilwaco, Pacific County, WA; Chinook, Pacific County, WA

Description: Clamshell dredging was performed at Gold Beach and Port Orford, Oregon and Baker Bay and Chinook, WA. Approximately 55,000 cubic yards (CY) was dredged at Port Orford with in-water ocean disposal. 93,104 CY were dredged at Baker Bay with in-water disposal placement at O-3.2-1W and W-4.8-1W in the Columbia River. 20,000 CY was dredged at Chinook, WA with in-water disposal placement at W-4.2-1W in the Columbia River.

Project: Chetco Mechanical Dredging 2012

Dredging Experience Project

Prime Contractor: HME Construction, Inc.
Regulatory Oversight: USACE, Portland District
Date: September 2012
Jobsite: Brookings, Oregon – Chetco River Mouth and Brookings Boat Basin

Description: Maintenance dredging and in-water disposal of approximately 25,000 cubic yards of material from the mouth of the Chetco River and the Brookings Boat Basin. The dredge plant Sea Horse began dredging operations at the mouth of the Chetco River Channel station 00 + 02+00 working inshore to station 00 + 13+00. The dredge area was divided into 50' lanes. Dredge depths required were -16 MLLW with a payable dredge over depth of -18 MLLW. Upon completion of the first acceptance area, a post-dredge survey was performed and accepted.

The dredge plant Sea Horse then moved to the final dredge area at the Brookings Boat Basin and dredged from station 00 + 15 +00 to 00+20+00. Upon completion, a post-dredge survey was performed and accepted. Dredge depths required were -12' MLLW with a payable dredge over depth of -14’ MLLW. Dredging performed by derrick barge Sea Horse and split hull dump scow, W.J. Marston.

Pile Driving Projects - Project: United Harvest Modernization Marine Structures

Pile Driving Project
Owner: CHS Inc. Prime
Contractor: HME Construction, Inc.
Engineer Berger ABAM
Date: December 2010 – May 2012
Jobsite: United Harvest Terminal, Kalama, WA

Description: HME Construction, Inc. began construction of a multiphase modernization project at the CHS Grain Terminal in Kalama, WA in December 2010. Originally slated to be a three year, three phase project that encompassed construction of 16 concrete topped, steel pile structures totaling 185 piles, installation of shipping and barge trestles, and removal of the existing 29,000 square foot dock and 450 supporting creosote wood piling, HME completed installation of most of the in-water portions of Phases 1 and 2 with final portions of Phase 3 cancelled due to engineering and construction contracts not complete on the upland portion of the project. HME completed their contract with CHS, Inc. in May 2012.