The PennZone

PHILADELPHIA - PennZone -- CASTLE's contract includes levels II and III inspections, developing repair plans, and specifications for defects found, including estimated repairs costs. The six Potomac River crossing foundations for inspection are supported by 8 – 48-inch concrete piles, and the water depth varies from 10 feet to over 35 feet. The river crossing is located on the Potomac River from Possum Point to Burches Hill, Virginia.

Level II inspections work toward detecting and identifying damaged or deteriorated areas that may be hidden by surface biofouling or deterioration and towards obtaining a limited amount of deterioration measurements. This level of inspection often requires the cleaning of structural elements. Often time-consuming, cleaning is designated for areas deemed critical or representative of the entire structure.

More on The PennZone

• Tina Hasselbusch, Turnstone Creative Co-founder and Chief Executive Officer, Named to LVB 300
• Pittsburgh Family Law Attorneys at Pollock Begg Earn Top Honors in 2027 Best Lawyers Guide
• Independent Colbert Packaging Thrives Amid Industrywide Consolidation
• Free Commercial Glass Estimating and Code Compliance Tools Launched by Landmark Construction - The Leading Glass Company in Los Angeles
• Tallahassee Million-Dollar Home Sales Rise in 2026 as Median Selling Time More Than Doubles

Level III inspections require the use of Non-destructive Testing (NDT) techniques. It may also require using partially destructive methods such as core sampling into concrete and wood structures, physical material sampling, or surface hardness testing. This evaluation aims to detect hidden or interior damage, loss in cross-sectional area, and material. For a Level III inspection, there is more cleaning involved and detailed inspection with measurements and quantities required to determine the true extent of deterioration.

"We are very proud that CASTLE was selected as the best overall consultant to perform the engineering project out of many competitive bids. We look forward to thorough and comprehensive underwater inspection of the six Potomac River crossing foundations." ~ William J. Castle, owner of WJ Castle, PE & Assoc., PC

The underwater inspection portion of CASTLE's contract will be completed in July 2020, over a period of 10 days.

More on The PennZone

• Slotozilla Reports Strong Growth in Q2 2026
• Eric Snyder, President and Chief Executive Officer of Keystone Consulting Engineers Named to LVB 300
• Philadelphia's Girls Anthem to Host The Locker Room Experience Pop-Up for Young Women
• Flexible Plan Investments Names Carl Resnick President
• Paula Josephine Sadler Releases "Imagine" on 24th Anniversary of Sobriety

WJ Castle, PE & Assoc., PC is a team of marine structural engineers and marine construction personnel, providing services to engineering companies and contractors in need of underwater inspection, design, or construction services.

For 35+ years, W.J. Castle is well known for our marine engineering expertise. Our team includes Structural and Civil Engineers who offer complete structural designs for building, replacing, or repairing: bridges, piers, docks, bulkheads, underwater cables, and more.

Hydro-Marine Construction, founded in 1997, has enabled the CASTLE to provide construction and design/build services using the CASTLE's team of highly trained personnel.

https://www.wjcastlegroup.com/