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PennDOT Ewing Park Bridge

Mekis Construction Company
Ellwood City, PA – 2005 – $102,000

Scope of Work:
In preparation of demolition of a 1930’s bridge, PENNDOT encountered lead in the soil beneath the span. Lead had reached the soil from the paint as it weathered through the years and from past sandblasting operations to prepare the bridge for repainting. Removal of the contaminated soil was required for the project to continue.

High concentrations of lead were determined through analystical testing in the top 12 inches of soil. The soil was a mix of loose granulated slag and sandy loam. The hillside beneath the bridge was steep with a 1-to-1 slope (45 degrees) and about 150 feet long.

The long, steep slope made use of conventional excavating equipment impractical and dangerous. Instead, Neumeyer Environmental utilized a HEPA filtered high-volume vacuum pump. Workmen traversed the slope, tethered to supporting ropes with full body harnesses, and pumped the contaminated soil using five-inch diameter vacuum hoses. The vacuum transferred the soil up the slope to a bagging station. Tthe contaminated soil was disposed at regulated facility.

Neumeyer Environmental removed 817 tons of contaminated soil from the slope in two weeks.

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Babcock Boulevard Winding Facility

Stemple & Ward
Pittsburgh, PA – 1996 – $120,000

Scope of Work:
Stemple & Ward purchased a public transportation garage and converted it to an electric motor winding facility. Years afterwards, gasoline odors began seeping through the sewage vents. Investigation identified four historic 5,000 gallon underground storage tanks previously used for leaded gasoline. The tanks had leaked into the surrounding subsoils and migrated into the storm sewers.

Neumeyer Environmental used ground-penetrating radar to locate the tanks. We excavated the tanks and removed the mix of water and product. Neumeyer Environmental shipped 20,000 gallons off-site to a recycler for processing. Neumeyer Environmental purged the tanks of flammable gas, removed and disposed them at a licensed tank disposal facility. 2,500 tons of adjacent subsoils required removal and disposal at a regulated facility.

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Gay Street Bridge Replacement

Nyleve Bridge Corporation
Phoenixville, PA – 2008-2009 – $900,000

Scope of Work:
A primary bridge over French Creek in Phoenixville, Pennsylvania was being replaced by PennDOT. Several environmental issues required address as part of the work including lead paint and asbestos-containing materials on the existing bridge and elevated contaminants in the subsurface soils. The piers and subsurface preparations were within a former steel-making facility with elevated inorganic constituents of concern. Neumeyer Environmental was contracted to address and manage these environmental aspects of the work.

Management of on-site soils required sampling and analysis, use of personal protective equipment, segregation of contaminated materials and water quality issues associated with installation of the pier adjacent to French Creek.

Neumeyer Environmental performed select earthwork, demolition, on-site placement and off-site disposal of surplus materials and debris. We also managed the discharge waters from the coffer dam by installing a high volume pump and treat system that allowed direct discharge to French Creek. The project required approximately 10 months to complete from plan preparation and sampling through excavation of the pier subgrade.

by neumeyeradmin neumeyeradmin

Corless Flyover Project

Mosites Construction Company
Pittsburgh, PA – 1997 – $350,000

Scope of Work:
The Allegheny County Port Authority Transit developed a busway and bridge to access the newly constructed Pittsburgh International Airport. An abandoned dump site was located within the alignment. Soil analysis indicated lead contaminated soils within the excavation limits.

Neumeyer Environmental removed, managed and disposed 18,000 tons of contaminated soil to an off-site regulated facility.

After completion of excavation to the foundation grade, Neumeyer Environmental overlaid the subgrade with barrier material to allow construction of the roadway to proceed with the contractor’s specialized crews. The potential for worker exposure to contaminants of concern was eliminated by this approach. The project was completed on-time and within budget.

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US Air Force Reserve 911 Base – Pittsburgh Airport

Joseph B. Fay, Inc.
Pittsburgh, PA – 1997 – $275,000

Scope of Work:
Neumeyer Environmental provided environmental management services for an obsolete jet fuel storage facility to be dismantled and removed prior to construction of a new facility. The site included two 280,000 gallon aboveground tanks, two 25,000 gallon underground tanks, one 5,000 gallon underground tank and one 250 gallon underground tank. During the forty-plus years the facility operated, numerous leaks and spills contaminated the surrounding soil with petroleum hydrocarbons.

Prior to demolition, Neumeyer Environmental evacuated, purged, and decontaminated the pipe systems and tanks. Neumeyer Environmental also dismantled six support buildings. Since the facility was active, Neumeyer Environmental was limited to cold-cut techniques including pneumatic saws and a hydraulic shear mounted to a tracked excavator. After removing the tanks and structures, Neumeyer Environmental excavated the impacted subsoils.

The Air Force’s original design called for soil to be hauled off site for disposal. Neumeyer Environmental used land farming techniques to clean 50,000 tons of contaminated soil as a value-engineered approach that substantially reduced the cost and duration of the project and was environmentally superior to off-site disposal.