Changes

County Court Blvd biofilter spillway inlet and CB overflow.jpg|OPSD 605.040 Asphalt Spillway inlet to biofilter swale and road catch basin overflow outlet. County Court Blvd., Brampton, ON.

County Court Blvd biofilter spillway inlet and CB overflow.jpg|OPSD 605.040 Asphalt Spillway inlet to biofilter swale and road catch basin overflow outlet. County Court Blvd., Brampton, ON.

Curb inlet Miss Rd.jpg|This curb cut has been sawn into existing concrete as part of a retrofit. Note the temporary (erosion log) and permanent [[stone]] erosion control measures in place. Mississauga Road, ON.  

Curb inlet Miss Rd.jpg|This curb cut has been sawn into existing concrete as part of a retrofit. Note the temporary (erosion log) and permanent [[stone]] erosion control measures in place. Mississauga Road, ON.  

LSRCA curb.jpg| [[Curb cuts|Curb cut]] used as a controlled [[overflow]] route from [[permeable pavement]] to a [[bioretention]] facility with monitoring well, Lake Simcoe Region Conservation Authority, Newmarket, ON.

LSRCA curb.jpg| [[Curb cuts|Curb cut]] used as a controlled [[overflow]] route from [[permeable pavements|permeable pavement]] to a [[bioretention]] facility with monitoring well, Lake Simcoe Region Conservation Authority, Newmarket, ON.

Curb cut CNT.jpg| Curb cut into a bioretention facility in Hinsdale, IL. [[Stone]] in the center of the facility reduces erosion and dissipates power inflow around the [[Inlets|inlet]] area. A monitoring/maintenance [[well]] can be seen in the foreground. Photo credit: [[Acknowledgements|CNT]]

Curb cut CNT.jpg| Curb cut into a bioretention facility in Hinsdale, IL. [[Stone]] in the center of the facility reduces erosion and dissipates power inflow around the [[Inlets|inlet]] area. A monitoring/maintenance [[well]] can be seen in the foreground. Photo credit: [[Acknowledgements|CNT]]

Curb cut AV.jpg | Curb cut into a bioretention facility in Brown Deer, WI. Stone is used to reduce erosion around the inlet area. Photo credit: [[Acknowledgements|Aaron Volkening]]

Curb cut AV.jpg | Curb cut into a bioretention facility in Brown Deer, WI. Stone is used to reduce erosion around the inlet area. Photo credit: [[Acknowledgements|Aaron Volkening]]

Ajax_curb_inlet.JPG| Curb cut into a bioretention facility in Ajax, ON.

Ajax_curb_inlet.JPG| Curb cut into a bioretention facility in Ajax, ON.

IMAX Stone Inlet.jpeg| [[Stone]] lined inlet at IMAX site in Mississauga

IMAX Stone Inlet.jpeg| [[Stone]] lined inlet at IMAX site in Mississauga

Curb inlet grade.jpg| The [[grading]] around this inlet prevents flow in the correct direction. i.e. from the pavement onto the grass. Not too critical in this example, as the surface is [[permeable pavement]].  

Curb inlet grade.jpg| The [[grading]] around this inlet prevents flow in the correct direction. i.e. from the pavement onto the grass. Not too critical in this example, as the surface is [[permeable pavements|permeable pavement]].  

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Sump inlets should not be sited where pedestrians will have to negotiate with them.

Sump inlets should not be sited where pedestrians will have to negotiate with them.

{{:Inlet sumps: Gallery}}

{{:Inlet sumps: Gallery}}

==Street gutter drains==

==Depressed drains==

Runoff in the gutter drops into a grate-covered drain before flowing into the BMP. Drain covers must be compatible with bicycling and walking; grid covers are preferred.

Runoff in the gutter drops into a grate-covered drain before flowing into the BMP. Drain covers must be compatible with bicycling and walking; grid covers are preferred.

Depressed drains are a potential solution for bioretention cells on sloped streets where directing runoff into the cell is a challenge.

Depressed drains are a potential solution for bioretention cells on sloped streets where directing runoff into the cell is a challenge.

This style of inlet can be combined with a curb cut, to maintain capacity in case debris clogs the grate.

This style of inlet can be combined with a curb cut, to maintain capacity in case debris clogs the grate.

{{:Street gutter drains: Gallery}}

{{Trench drains: Gallery}}

==External links==

==External links==

https://nacto.org/publication/urban-street-stormwater-guide/stormwater-elements/bioretention-design-considerations/inlet-design/

https://nacto.org/publication/urban-street-stormwater-guide/stormwater-elements/bioretention-design-considerations/inlet-design/