Riverworks Incorporated (Marine Construction)
Call Us at (757) 968-3467or (804) 693-4263 (office)
Frequently Asked Questions

We try to anticipate questions you might have about our PRODUCT / SERVICE and provide the answers here. If you need additional information send email to YOUR EMAIL ADDRESS.

What materials do you use to build your piers?

We use 8" top (11" butt) CCA pressure-treated pilings, with the industry maximum treatment of 2.50 lbs/cubic foot retention. These pilings are driven as far into the ground as the river bottom will permit, with up to 15,000 lbs of force.  Our 2x8 rough cross members share the same treatment, while our 2x8 joists/stringers utilize 1.00 or 0.80 pcf treatment. The decking boards utilize the common 0.06 pcf treatment.

We utilize galvanized 5/8" diameter hex bolts or timber bolts (similar to large carriage bolts) and double hot dipped galvanized 20 penny or 20D nails, which are hand driven. These nails are larger and rust far slower than our competitors' 16D and smaller nail gun nails.


How do you install your pilings?

We utilize a 33,000 lb excavator with a vibratory hammer to drive our pilings. We drive our poles until the machine can no longer push them down any further. We estimate to have between 10,000 and 15,000 lbs of pressure applied to the piling.


How do you construct rip rap?

We start by grading the soil to the correct grade, and then place heavy duty filter cloth down. The rocks we use depend on the area and the exposure, but in general we use layers of the largest grade stones (bigger is better in this case)


What boat lifts do you prefer to use?

We use a company called Tide Tamer for our waterfront products. Tide Tamer provides us with aluminum and stainless steel products. Their boat lifts are extremely high quality and last for a very long time. We have taken out ten year old lifts and reused them again. Tide Tamer has an excellent customer service record and between us, we will always be there to assisst you with any problems that come up.

We also install Jet ski lifts and gangways.