Sheetflow Erosion & Sediment Control Heavy Civil Construction

July 31, 2020

Catch Basin Covered-Infiltration

catch basin covered to allow infiltration of construction stormwater in hole cut in asphalt and filled with rock
Photo: David Jenkins

This is the first project we have cut asphalt to allow construction stormwater to infiltrate. The area is paved, flat. The sweeper runs constantly but the water is still too turbid to go down the drain. The fill soil under the asphalt is sandy. If we just covered the catch basin with 30 Mil PVC, the area would just flood, then drain to another catch basin. Solution? Cut out a section of asphalt full depth to the sandy soil, fill with 3 to 5 inch rock. This way the water infiltrates but vehicles can drive over the hole. This is working really well so we will be doing this on future container dock upgrade projects.

July 30, 2020

Compost Sock Maintenance

Photo: David Jenkins

Compost socks work really great around catch basins but need to be maintained. This doesn’t necessarily need to be replaced but the tear needs to be wrapped with plastic or netting. Safety cones or candles might keep people from backing over them.

July 29, 2020

Compost Sock Installation

Photo: David Jenkins

Compost socks need to overlap on each end to maintain a continuous berm. 8 to 12 inches works well. Consider this when figuring out how many you need.

July 28, 2020

Compost Sock Perimeter BMP

Photo: David Jenkins

Compost socks are a better perimeter control BMP than straw wattles as they have much better contact with the asphalt surface. However, they do have to be well maintained and protected as they can rip.

July 27, 2020

BMP Graveyard-Straw Wattle

Photo: David Jenkins

Another ten year old straw wattle and the plastic is partly degraded but mostly too strong to pull apart.

July 24, 2020

What Every CESCL Should Know

Filed under: Web Site — Tags: , , , , — Sheetflow @ 1:51 am

Be sure to sign up: IECA Washington Virtual Connection: What Every CESCL Should Know, September 23rd and 24th online.

July 23, 2020

Spill Sausages on the Crane Deck

Photo: David Jenkins

Nice job of containing the drips from hydraulic hose fittings and pump.

July 22, 2020

Covering Zinc-coated ends of the Steel Piles

Photo: David Jenkins

Need to keep the zinc out of the bay, need to cover the piles a little better.

July 21, 2020

High pH from Concrete Crushing Operation in Runoff

Photo: David Jenkins

I believe pH of 12.5 makes the water a dangerous waste requiring special handling.

July 20, 2020

Light Plant in Secondary Containment

Photo: David Jenkins

The kiddy pool is placed under the motor and drip pan. If there are drips that cause a sheen while rain water is present, the sheen will be picked up with spill pads and the water tipped out onto the ground. The spill pads will be paced in a plastic bag and disposed of in the trash.

Older Posts »

Powered by WordPress