Stormwater inlets—also known as storm drain inlets, curb inlets or catch basins—are inlets to storm drain systems. Communities can use a range of stormwater controls for these inlets: …

Inlets are structures with inlet openings to receive surface water. Figure 7-1 illustrates several typical inlet structures, including a standard drop inlet (area inlet), catch basin, curb inlet, and …

Drain inlets incorporated into a curb and gutter systems are called curb inlets. Drain inlets have minimal water quality benefit alone; however, in a developed watershed they are often a …

Oct 2, 2017 · Catch basins differ from grate and drop inlets shown in that the grate and drop inlets have larger grates with more flow capacity, and larger knockouts. Catch basins differ from …

Curb opening inlets have an opening parallel to the direction of flow in the gutter. This inlet group is adapted to curb and gutter installations. The curb opening is most effective with flows …

KYTC drainage inlets are classified as curb inlets, drop inlets, and special purpose inlets. Curb inlets are further classified as curb opening, grated, or combination inlets. Drop inlets are …

Unsubmerged curb opening inlets (Type A-1) and drop inlets (Type A-4) in a sump at low points are considered to function as rectangular weirs with a coefficient of discharge of 3.0.

A catch basin (or a curb inlet or storm drain) is a structure that’s designed to collect excess water from rain, snowmelt, and other sources. It's typically located along the roadside or in parking …

A drop inlet is a common device for extended detention basins, wetlands, and bioretention cells. A drop inlet allows for the rapid release of water once a design elevation is reached in an SCM.

Grate Inlets are set with one side against a curb. Therefore, they receive side flow along only one side of the grate (the length side), and the frontal flow is calculated using a typical curb and …

Jul 8, 2021 · Drop inlet: A horizontal or near-horizontal opening. Slotted drain inlet: A grate inserted into the top of a stormwater drain pipe. Combination inlet: Usually a combination of a …

There are many drainage features on and along streets and highways. They include the curbs and gutters, drop inlets and catch basins, pipes, culverts, and ditches needed to collect and carry …

Jan 9, 2025 · Sometimes referred to as a drain inlet, drop inlet, curb inlet, and catch basin—Inlets are specially designed drains that collect rainwater. While typical street gutters collect some of …