Category:614 Drainage Fittings (Grate Inlets): Difference between revisions

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There are many aspects to be considered when inspecting construction quality and this article provides [[614.2 Material Inspection for Sec 614|material inspection guidelines]].  For Laboratory testing and sample reporting procedures, refer to [[614.3 Laboratory Testing Guidelines for Sec 614|EPG 614.3 Laboratory Testing Guidelines for Sec 614]].  [[614.4 Maintenance Planning Guidelines for Drop Inlets and Storm Sewers|Maintenance planning guidelines for drop inlets, storm sewers]] and [[614.5 Maintenance of Floodgates|floodgates]] are also available.
[[image:614.curved vane.jpg|right|300px|thumb|<center>'''Curved Vane Grate'''</center>]]
[[image:614.curved vane.jpg|right|300px|thumb|<center>'''Curved Vane Grate'''</center>]]
Two types of inlet grates are shown in the standard plans.  The [http://www.modot.mo.gov/business/standards_and_specs/documents/61411.pdf curved vane grate (Standard Plan 614.11)] is used in roadway and shoulder applications and is considered [[:Category:641 Bicycle Facilities|bicycle]] safe.  The [http://www.modot.mo.gov/business/standards_and_specs/documents/61410.pdf parallel bar grate (Standard Plan 614.10)] may be used only in areas outside the roadway and shoulders, such as in grassy medians or other unpaved areas.   
Two types of inlet grates are shown in the standard plans.  The [https://www.modot.org/media/16890 curved vane grate (Standard Plan 614.11)] is used in roadway and shoulder applications and is considered [[:Category:641 Bicycle Facilities|bicycle]] safe.  The [https://www.modot.org/media/16889 parallel bar grate (Standard Plan 614.10)] may be used only in areas outside the roadway and shoulders, such as in grassy medians or other unpaved areas.   


Standard curved vane grate inlets are 2 ft. (610 mm) long (measured in the direction of flow), and either 2 or 4 ft. (610 or 1219 mm) wide (measured perpendicular to the direction of flow).  Only 2 ft. (610 mm) wide inlets may be used in curb and gutter sections; whereas 2 or 4 ft. widths may be used with integral curb (triangular) sections.  Details of the inlet grates and gutter cross-sections may be found in the standard plans.
Standard curved vane grate inlets are 2 ft. long (measured in the direction of flow), and either 2 or 4 ft. wide (measured perpendicular to the direction of flow).  Only 2 ft. wide inlets may be used in curb and gutter sections; whereas 2 or 4 ft. widths may be used with integral curb (triangular) sections.  Details of the inlet grates and gutter cross-sections may be found in the standard plans.


Grate inlets fit in [http://www.modot.mo.gov/business/standards_and_specs/documents/73110.pdf Type S-1, S-2 or S-3 precast drop inlets].  [http://www.modot.mo.gov/business/standards_and_specs/documents/73110.pdf Precast drop inlet covers, Types A, B, C, D and E], are shown in the standard plans.  
Grate inlets fit in [https://www.modot.org/media/16974 Type S-1, S-2 or S-3 precast drop inlets].  Precast drop inlet covers, Types A, B, C, D and E, are also shown in [https://www.modot.org/media/16974 Standard Plan 731.10].  


Hydraulic aspects of grate inlets are presented in [[640.1 Pavement and Bridge Deck Drainage |640.1 Pavement and Bridge Deck Drainage]].
Hydraulic aspects of grate inlets are presented in [[640.1 Pavement Drainage|EPG 640.1 Pavement Drainage]].


==614.1 Construction Inspection Guidelines for [http://www.modot.mo.gov/business/standards_and_specs/Sec0614.pdf Sec 614]==
==614.1 Construction Inspection Guidelines for [http://www.modot.org/business/standards_and_specs/SpecbookEPG.pdf#page=9 Sec 614]==
'''[[646.1 Manholes|Manhole]] Frame And Cover And Curb Inlet (for Sec 614.30).''' The Standard Plans are clear.
'''[[646.1 Manholes|Manhole]] Frame And Cover And Curb Inlet (for Sec 614.30).''' The Standard Plans are clear.
==614.2 Laboratory Testing Guidelines for [http://www.modot.mo.gov/business/standards_and_specs/Sec0614.pdf Sec 614]==
This article establishes procedures for Laboratory testing and reporting samples of grates, bearing plates, bolts, nuts and washers.  No Laboratory tests are required for automatic floodgates, manhole frames and covers or curb inlets.
===614.2.1 Procedure===
Grates and bearing plates shall be tested for weight (mass) of zinc coating according to AASHTO M111. Bolts, nuts and washers shall be tested for weight (mass) of zinc coating according to AASHTO M232. Refer to [[:Category:1040 Guardrail, End Terminals, One-Strand Access Restraint Cable and Three-Strand Guard Cable Material#Field determination of weight (mass) of coating|Field determination of weight (mass) of coating]] for additional information concerning the testing of bolts, nuts, and washers for weight (mass) of zinc coating. All test data and calculations shall be recorded in Laboratory workbooks. Test results shall then be recorded through SiteManager.
===614.2.2 Sample Record===
The sample record shall be completed in SiteManager as described in [[Automation Sec 3510]] and shall indicate acceptance, qualified acceptance or rejection. Appropriate remarks, as described in [[106.9 Reporting Test Results|106.9 Reporting Test Results]], are to be included in the remarks to clarify conditions of acceptance or rejection. Test results shall be reported on the appropriate templates under the Tests tab.

Latest revision as of 09:05, 15 September 2020

There are many aspects to be considered when inspecting construction quality and this article provides material inspection guidelines. For Laboratory testing and sample reporting procedures, refer to EPG 614.3 Laboratory Testing Guidelines for Sec 614. Maintenance planning guidelines for drop inlets, storm sewers and floodgates are also available.

Curved Vane Grate

Two types of inlet grates are shown in the standard plans. The curved vane grate (Standard Plan 614.11) is used in roadway and shoulder applications and is considered bicycle safe. The parallel bar grate (Standard Plan 614.10) may be used only in areas outside the roadway and shoulders, such as in grassy medians or other unpaved areas.

Standard curved vane grate inlets are 2 ft. long (measured in the direction of flow), and either 2 or 4 ft. wide (measured perpendicular to the direction of flow). Only 2 ft. wide inlets may be used in curb and gutter sections; whereas 2 or 4 ft. widths may be used with integral curb (triangular) sections. Details of the inlet grates and gutter cross-sections may be found in the standard plans.

Grate inlets fit in Type S-1, S-2 or S-3 precast drop inlets. Precast drop inlet covers, Types A, B, C, D and E, are also shown in Standard Plan 731.10.

Hydraulic aspects of grate inlets are presented in EPG 640.1 Pavement Drainage.

614.1 Construction Inspection Guidelines for Sec 614

Manhole Frame And Cover And Curb Inlet (for Sec 614.30). The Standard Plans are clear.

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