SAMPLE PROJECTS OVERVIEW

BRIDGES
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BRIDGES

Pennsylvania DOT: SR 291 over Darby Creek

This was a multi-month project with J.D. Eckman to encapsulate the bridge piers with epoxy and install pumped-in-place scour protection mats. (2013)

NJ TRANSIT: Newark Drawbridge

Walker Diving was subcontracted by Skanska Koch to complete concrete repairs to several piers and abutments and to replace fender walers and boards. (2008)

Pennsylvania DOT: Route 95 over Darby Creek

Walker Diving was hired by Crossing Construction to rebuild the timber fender on the Route 95 Bridge at Darby Creek. Walker Diving’s work involved completely removing the existing fender then installing a new timber fender system. (2005)

NJ DOT

Walker Diving's portion of the project involved mainly concrete spall repairs both above and below the water line.

Pennsylvania DOT: SR 291 over Darby Creek

This was a multi-month project with J.D. Eckman to encapsulate the bridge piers with epoxy and install pumped-in-place scour protection mats. (2013)

NJ TRANSIT: Newark Drawbridge

Walker Diving was subcontracted by Skanska Koch to complete concrete repairs to several piers and abutments and to replace fender walers and boards. (2008)

Pennsylvania DOT: Route 95 over Darby Creek

Walker Diving was hired by Crossing Construction to rebuild the timber fender on the Route 95 Bridge at Darby Creek. Walker Diving’s work involved completely removing the existing fender then installing a new timber fender system. (2005)

NJ DOT

Walker Diving's portion of the project involved mainly concrete spall repairs both above and below the water line.

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PIERS & WHARFS 
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PIERS & WHARFS 

Battery Park City Authority

Epoxy encapsulation of square precast concrete piles and grout encasement of steel sheetpile cells. (2017)

DE Parks & Recreation

This project involved repairing a select group of piles by encasing them with fiberglass jackets.

Albany Port District Commission

Walker Diving was contracted to carry out numerous pile repairs under rather challenging conditions.

Port Authority of NY & NJ

Removal and replacement of nearly 900 anodes.

Battery Park City Authority

Epoxy encapsulation of square precast concrete piles and grout encasement of steel sheetpile cells. (2017)

DE Parks & Recreation

This project involved repairing a select group of piles by encasing them with fiberglass jackets.

Albany Port District Commission

Walker Diving was contracted to carry out numerous pile repairs under rather challenging conditions.

Port Authority of NY & NJ

Removal and replacement of nearly 900 anodes.

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DAMS 
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DAMS 

South Central Connecticut Regional Water Authority

Walker Diving was hired to locate and recover three aerators, one 34’ long in 42’ of water and two 25’ long units approximately 30’ deep for inspection and refurbishment.

US Army Corps of Engineers

Walker Diving’s portion of this repair project was to repair scour defects on all four sides of each of ten guidewall support piers by pumping a five thousand psi grout by the use of forms and or grout bag placement.

Fawn Lake Forest Association

This project involved the replacement of a shaft, including the resetting and stabilizing of concrete pedestals.

Town of Amenia, New York

Walker Diving was contracted to assist with the rehabilitation of Thorne Dam in the Town of Amenia, NY. The scope of the work was to provide, install, and anchor in place a 200 linear ft. by 10 ft. deep silt boom upstream of the crest of the dam.

United Water

Inspection of three dams in Northern NJ.

Washington Suburban Sanitary Commission

The WSSC contracted Johnston Construction Corp. (prime) of York, PA and Walker Diving (sub) to perform the intake repairs to the Howard T. Duckett Dam in Laurel, MD. The scope of the work for Walker Diving consisted of replacing the two sluice gates that were below the water level and replacing the entire trash rack guide in front of the tower structure.

South Central Connecticut Regional Water Authority

Walker Diving was hired to locate and recover three aerators, one 34’ long in 42’ of water and two 25’ long units approximately 30’ deep for inspection and refurbishment.

US Army Corps of Engineers

Walker Diving’s portion of this repair project was to repair scour defects on all four sides of each of ten guidewall support piers by pumping a five thousand psi grout by the use of forms and or grout bag placement.

Fawn Lake Forest Association

This project involved the replacement of a shaft, including the resetting and stabilizing of concrete pedestals.

Town of Amenia, New York

Walker Diving was contracted to assist with the rehabilitation of Thorne Dam in the Town of Amenia, NY. The scope of the work was to provide, install, and anchor in place a 200 linear ft. by 10 ft. deep silt boom upstream of the crest of the dam.

United Water

Inspection of three dams in Northern NJ.

Washington Suburban Sanitary Commission

The WSSC contracted Johnston Construction Corp. (prime) of York, PA and Walker Diving (sub) to perform the intake repairs to the Howard T. Duckett Dam in Laurel, MD. The scope of the work for Walker Diving consisted of replacing the two sluice gates that were below the water level and replacing the entire trash rack guide in front of the tower structure.

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INTAKES & OUTFALLS 
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INTAKES & OUTFALLS 

ODEC Wildcat Point, Peach Bottom, PA

Walker Diving was hired by Allan Myers to construct new intake structure and outfall pipe in the Susquehanna River for a new power plant. (2016)

Conectiv (Calpine) Delta, PA

Walker Diving was hired by C.H. Schwertner to construct new intake and outfall structures for a new Conectiv power plant on the Susquehanna River. (2010)

Town of Perryville, MD

Walker Diving was contracted to build a new water intake in the Susquehanna river for the town of Perryville, MD. (2007)

The York Water Company

Walker Diving was contracted by Kinsley Construction of York, PA to install the raw water intakes for York Water’s new pump station. (2003)

ODEC Wildcat Point, Peach Bottom, PA

Walker Diving was hired by Allan Myers to construct new intake structure and outfall pipe in the Susquehanna River for a new power plant. (2016)

Conectiv (Calpine) Delta, PA

Walker Diving was hired by C.H. Schwertner to construct new intake and outfall structures for a new Conectiv power plant on the Susquehanna River. (2010)

Town of Perryville, MD

Walker Diving was contracted to build a new water intake in the Susquehanna river for the town of Perryville, MD. (2007)

The York Water Company

Walker Diving was contracted by Kinsley Construction of York, PA to install the raw water intakes for York Water’s new pump station. (2003)

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PLANT MAINTENANCE 
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PLANT MAINTENANCE 

NYC DEP

In 2006 Walker Diving was asked to replace a 36” gate and actuator in an effluent channel at the Port Richmond Waste Treatment Plant for the New York City DEP.

Amerada Hess Corporation

Walker's role here is was to inspect and measure the plant's fire pump intakes for future upgrading.

NYC DEP

In 2006 Walker Diving was asked to replace a 36” gate and actuator in an effluent channel at the Port Richmond Waste Treatment Plant for the New York City DEP.

Amerada Hess Corporation

Walker's role here is was to inspect and measure the plant's fire pump intakes for future upgrading.

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PIPELINES & CABLES 
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PIPELINES & CABLES 

Kinder Morgan

Walker Diving conducted navigable waterway crossing inspections for five pipelines including hydrographic survey and CIS (Close-Interval Survey). (2018)

Philadelphia Water Company

Walker Diving was contracted by the Philadelphia Water Department to inspect and clean the dual siphons carrying waste water under the Schuylkill River.

Kinder Morgan

Walker Diving conducted navigable waterway crossing inspections for five pipelines including hydrographic survey and CIS (Close-Interval Survey). (2018)

Philadelphia Water Company

Walker Diving was contracted by the Philadelphia Water Department to inspect and clean the dual siphons carrying waste water under the Schuylkill River.

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