June Monthly Minute
Colonial Construction Materials
Your Partner in Providing On Site Solutions

Stabilizing a swamp with geosynthetics

Logo Fence on lay down yard

Sandbridge Road Bridge Replacement

Sandbridge Road is the only route in and out of the coastal community. In order to provide continued access, a temporary bridge must be constructed before the bridge replacement can begin. The site is a swampy area with a high water table which means a solid subgrade is critical.
First, a Type III Impervious Turbidity Curtain was installed to control sediment that could enter the waterway. The custom manufactured curtain totals 150 linear feet. Next, the contractor cleared the swamp and began to fill with stone; the first layer of subgrade support. Layers of nonwoven fabric, grid and 6”-8” stone lifts follow. 
Grid and Nonwoven Fabric
The nonwoven fabric acts as a drainage layer and a separator. It prevents stone from falling through the geogrid apertures and contaminating the soft soil. The grid spreads the load across the entire plane and stabilizes the subgrade. As the layers of nonwoven, grid, and stone are compacted, the soft soils are strengthened and hydraulic pumping is prevented.
Fill sand is dumped after several layers of fabric and stone. Now the temporary bridge can withstand heavy loads and a crane sits securely where a swamp used to be.

News and Notes

Diamond Sock at Hanover Airport

Diamond Sock Taking Off

One week, three unique applications
1) Perimeter control at a runway rehabilitation
2) Undercuts at a highway expansion

3) Inlet protection for road improvements

Hot Headlines 

>Rte. 7 Corridor project shows promise of real improvement for commuters

>NC Developer has big plans for CSX in Richmond's Rocketts Landing

>Grass restoration in coastal Virginia community most successful in the world
American Flag

July 4th Hours

We will close at noon on Wednesday July 3 and will remain closed through Friday July 5. 
Please be aware that orders placed that week may result in longer than normal lead times.
We will reopen on Monday July 8 at 7:30 am.

Contact Us Today

Richmond Office
1071 Merchants Lane
Oilville, VA 23129
Virginia Beach Office
2432 Bowland Parkway
Virginia Beach, VA 23454
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