Bulk Aggregates for Drainage in New Boston, NH

New Hampshire Rock Supply handles gravel and aggregate delivery in New Boston, NH, by the ton. Crushed gravel is the base material most jobs here start with, and it sets the grade for everything above it. Around New Boston the ground runs from stony glacial till on the hills to sand and gravel outwash in the valleys, and that mix decides how water moves on your lot.

Washed stone in the right size does the work in New Boston drainage jobs, from French drains and drywells to downspout runs.

Materials for New Boston Projects

Water is the reason most drainage jobs get dug, and washed stone is what carries it away. Washed stone has the fines rinsed out, so the voids between stones stay open and water keeps moving instead of silting up. We list the sizes coarsest to finest so you can match stone to the pipe, trench or bed in front of you.

Start coarse and work down. Drain Rock and #4 Crushed Stone go in the bottom of a deep trench or a drywell where the flow is heaviest. #57 Stone is the standard around a perforated pipe in a French drain, and it also works as concrete aggregate. 3/4" Crushed Stone covers drainage beds and drive surfacing. 3/8" Crushed Stone beds smaller pipe and tops a compacted base.

For tight work, #89 Crushed Stone is a small washed stone for joints and tight bedding. If the drain daylights at a bank or culvert outlet, RipRap armors the outlet so runoff does not cut the bank away. Remember that washed stone is for moving water, not for compaction. Base courses under a drive or a pad take crushed gravel or Crusher Run, which bind and lock when you compact them.

Ground and Conditions in New Boston

Base, driveway and paver work runs from the end of mud season into late fall. Frozen ground stops compaction through the winter, so a load of base stone dropped in January sits until spring. If you are planning a pad or a drive, time the delivery for workable ground, not for the day you want the stone on site.

Drainage is where the local ground splits. Sandy valley outwash drains fast, while dense till with a hardpan layer drains slowly and holds water on top. In mud season, thawed soil sits above ground that is still frozen, and there is nowhere for meltwater to go. That is when a drywell or a downspout run pays for itself.

Frost matters too. Cold winters bring repeated freeze-thaw and frost heaves in gravel drives as the ground thaws each spring. Frost depth runs about 4 feet in most towns, and the town building official sets footing depth. Below that line the ground stays put, so footing and drain depths should follow the local requirement.

Bank scour is the other driver. Heavy rain and snowmelt cut at river and stream banks, as in the May 2006 flood that set record flows on several rivers in this part of the state. RipRap at a culvert outlet or along a bank takes that energy before your soil does.

Delivery to New Boston and the Surrounding Area

We deliver bulk material across New Boston and the rest of Hillsborough County, including Manchester, Nashua, Merrimack, Hudson and Bedford. Lead time depends on the material and the season, and it tightens in spring when everyone is ordering at once. Ordering early in the week you need the stone helps.

Order online and pick your material and quantity. Bulk aggregates are sold by the ton or by the cubic yard, so you need the area and the depth you are filling. A driveway with a set surface depth over a known square footage is a straightforward calculation, so work out the quantity before you order.

Tell us where the pile goes. A bulk load needs a spot the truck can reach and a clear drop zone, and a driveway or pad works best for that. If the site is tight, say so when you order and we will talk through how the load comes in.

Order Bulk Stone and Gravel in New Boston

New Hampshire Rock Supply delivers crushed gravel, washed stone, sand and soil across New Boston and Hillsborough County. If you are digging a French drain, setting a drywell or running a downspout away from the foundation, order the right washed stone size online and we will bring it to your site.