Aug 20, 2024 · Technical updates also include updating stormwater quality information with current design practices and performance data, and presenting a new curb opening inlet …

Curb-opening inlet capacity depends on the inlet dimensions, longitudinal slope, gutter and roadway cross slope, local depression, and approach flow characteristics. Curb-opening inlets …

For these types of facilities, the drainage of standing water is accomplished, ideally, by channeling the water along a gutter until it enters a curb opening or "inlet," after which it is car ried away …

Nov 1, 2006 · The current design procedure for sizing a single-unit curb opening inlet has been expanded to multiple-unit inlet designs. The decay function derived in this study can …

It is found that the most-efficient types are the combination inlet and the grate inlet. In both cases, the grate should have only longitudinal bars. When the street grade is steep and gutter …

There are two major types of inlets approved for use within the City rights-of-way: curb opening and grate. Inlets are further classified as being on a “continuous grade” or in a “sump”.

Inlets should be placed at all low points in the roadway and at suitable intervals along extended slopes as necessary to prevent excessive flow in the gutter or ponding on the roadway.

Jul 1, 1992 · This study develops a new hydraulic design procedure for curb-opening inlets based on experimental data. The results are presented in graphical form for practical use.

Mar 1, 2025 · The curb inlet and grate inlet combination in composite depressed curb inlet cases were able to deal with all the road surface runoff for the small longitudinal slope (S0 = 0.1% …

Curb Opening: Depressed Inlet Throat or At-Grade? At largest contributing area modeled, throat can increase inlet capacity 14% and 25% . GI Implications • GI system and pipe utilization may …

Sep 14, 2012 · A curb inlet and two combination inlets (with a grate and curb opening) used for storm-water drainage were tested under varying road conditions, and equations were …

Jan 18, 2024 · A curb-opening inlet is one of the most commonly used inlets that functions as a barrier by which runoff is guided and transferred to the opening inlet. There are two designs of …

Sep 5, 2002 · This study develops a new hydraulic design procedure for curb-opening inlets from experimental data and theory. The results are presented in diagrammatic form for practical use.

Types of inlets considered in UDINLET include grate, curb-opening, combination of grate and curb opening, and slot drain. Inlets can be placed on a sump or on a grade. Inlet interception …

Hydraulic Efficiency of Grate and Curb-Opening Inlets Under Clogging Effect. The goal of this project is to investigate the hydraulic efficiencies of Type 13 (bar inlets), Type 16 (vane inlets), …

In this study, a three-dimensional computational fluid dynamics (CFD) software, FLOW-3D, is used to develop models simulating unsteady, free-surface, shallow flow through curb-opening …

In the design of stormwater drains, the stormwater curb inlet or gutter inlet opening can be sized using orifice equations if the opening is completely submerged, or with a weir equation if the …

It describes four main types of inlets - grate inlets, curb-opening inlets, slotted inlets, and combination inlets. It also discusses factors that affect inlet capacity such as geometry, gutter …