Infiltration Trenches a. At least twice a year and after significant rainfall events the Landowner is to inspect the infiltration trench and remove any accumulated debris, sediment and invasive vegetation.
Infiltration Trenches. Infiltration trenches are essentially leaky pipes in a stone-filled trench. Surface runoff or downspouts can be directed to infiltration trenches, where the stormwater drains out of a perforated pipe into the trench/gravel and then into the soil. For larger storms that produce more runoff, some stormwater will be stored in the stone trench, but water can also flow through the pipe to a larger BMP. Maintenance: • Do not drive vehicles over an infiltration trench as it can cause compaction or crush the perforated pipes. • If the trench has an access pipe, it should be checked and cleaned out regularly.
Infiltration Trenches. Construct infiltration trenches as shown in the Plans, or as modified by the Engineer, only after final grade and stabilization of drainage areas upstream of the infiltration trenches are completed to prevent contamination. If this is not feasible, stormwater flow shall be diverted around the trench and the trench area protected with temporary erosion and sediment control measures. Contractor shall maintain the infiltration trench after construction as outlined in the GDOT Stormwater System Inspection and Maintenance Manual until the project is turned over.
Infiltration Trenches. Infiltration trenches are measured for payment by the entire structure constructed at each location complete in place and accepted. Any pretreatment and any signage are included in the cost of the infiltration trench. Sod is incidental.
Infiltration Trenches. At least twice a year and after significant rainfall events the Landowner is to inspect the infiltration trench and remove any accumulated debris, sediment and invasive vegetation. Vegetation along the surface of an infiltration trench is to be maintained in good condition, and any bare spots are to be revegetated as soon as possible. Vehicles are not to be parked or driven on an infiltration trench, and care is to be taken to avoid excessive compaction by mowers. Any debris, such as leaves blocking flow from reaching an infiltration trench, is to be routinely removed.
