Description. An infiltration trench typically consists of a gravel-filled trench that allows stormwater to soak into the ground. Various infiltration trench designs exist; a design may include an overflow, an underdrain or vegetation.
Infiltration Trenches utilize relatively narrow excavations backfilled with gravel or other high porosity materials to create subsurface storage for runoff that will infiltrate into the surrounding soils over a design period.
An Infiltration Trench may be used as part of a larger storm sewer system, such as a relatively flat section of storm sewer, or it may serve as a portion of a stormwater system for a small area, such as a portion of a roof or a single catch basin. In all cases, an Infiltration Trench should be designed with a positive overflow.
III-3.3.11 Infiltration Trenches - Washington
2011年3月3日 · This section covers design, construction, and maintenance criteria specific for infiltration trenches. Description: Infiltration trenches are generally at least 24 inches wide, and are backfilled with a coarse stone aggregate, allowing for temporary storage of stormwater runoff in the voids of the aggregate material.
An infiltration trench is a rock-filled trench that receives stormwater runoff, allowing it to infiltrate into the ground. These structures provide temporary underground storage in
The major design goal for Infiltration is to maximize runoff volume reduction and nutrient removal. To this end, designers may choose to go with the baseline design (Level 1) or choose an enhanced design (Level 2) that maximizes nutrient and runoff reduction. To qualify for Level 2,
This example focuses on the design of an infiltration trench to meet the water quality treatment requirements of the site. Channel protection and overbank flood control is not addressed in this example other than quantification of preliminary storage volume and …
Infiltration Trenches: Design & Sizing | Vaia
Infiltration trenches are gravel-filled excavations designed to capture, store, and facilitate the infiltration of stormwater into the surrounding soil, effectively reducing surface runoff and promoting groundwater recharge.
Infiltration Trench | CT Stormwater Quality Manual
Infiltration trenches are shallow, excavated, stone-filled trenches in which stormwater is collected and infiltrated into the ground. Infiltration trenches can be constructed at a ground surface depression to intercept overland flow.
The following procedures shall be used for designing infiltration trenches (I-1) and basins (I-2) to meet the water quality (WQ v ), the channel protection (Cp v ), and the overbank flood protection (Qp) volume requirements.