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Hydraulics Standard Plans and Technical Commentary Sheets

The following Standard Plans and commentary sheets pertain to Hydraulics.  They are in a PDF format and require Adobe Acrobat Reader. The latest version of Adobe Acrobat Reader can be downloaded from:

http://www.adobe.com/products/acrobat/readstep2.html

The Washington State Department of Transportation (WSDOT) makes these documents available on an "as is" basis. All warranties and representations of any kind with regard to said documents are disclaimed, including the implied warranties of merchantability and fitness for a particular use. WSDOT does not warrant the documents against deficiencies of any kind.

All CAD files were created with Bentley MicroStation (*.dgn files). The AutoCad files (*.dwg) were converted as a service to our customers who use AutoCad. However, no attempt has been made to ensure that there were no errors in the conversion process. Receiver agrees that WSDOT cannot be held responsible for problems arising from files that have been converted.

Since revisions or additions to the design file standards may occur at any time, the Receiver agrees to indemnify, defend and hold harmless WSDOT, its officers, agents, and employees from and against any and all claims, suits, losses, damages or costs, including reasonable attorney's fees, arising from the use of outdated design file standards, and such indemnification shall survive acceptance of said file(s) by receiver.

Standard Plans

Commentary Sheets

B-5.20

Catch Basin Type 1

B-5.40

Catch Basin Type 1-L

B-5.60

Catch Basin Type 1-P (for Parking Lot)

B-10.20

Catch Basin Type 2

B-10.40

Catch Basin Type 2 with Flow Restrictor

B-10.60

 

Catch Basin Type 2 with Baffle Type Flow Restrictor

B-15-20

Manhole Type 1

B-15-40

Manhole Type 2

B-15-60

Manhole Type 3

 

B-20.20

Drywell Type 1 (for Swale)

B-20.40

Drywell Type 2 (with pipe inlet)

B-20.60

Drywell Type 3 (with at-grade inlet)

 

B-25.20

Combination Inlet

B-25.60

Concrete Inlet

 

B-30.10

Rectangular Frame (Reversible)

B-30.20

Rectangular Solid Metal Cover

B-30.30

Rectangular Vaned Grate

B-30.40

Rectangular Bi-Directional Vaned Grate

B-30.50

Rectangular Herringbone Grate

B-30.70

Circular Frame (Ring) and Cover

B-30.80

Circular Grate

B-30.90

Miscellaneous Details for Drainage Structures

 

B-35.20

Grate Inlet Type 1 (Cast-In-Place)

B-35.40

Grate Inlet Type 2

B-40.20

Grates for Grate Inlet

B-40.40

Frame and Dual Vaned Grates for Grate Inlet

 

B-45.20

Drop Inlet Type 1

B-45.40

Drop Inlet Type 2

B-50.20

Grates for Drop Inlet

B-55.20

Pipe Zone Bedding and Backfill

 

B-60.20

Connection Details For Dissimilar Culvert Pipe

B-60.40

Coupling Bands for Corrugated Metal Pipe

 

B-65.20

Animal/Pedestrian Underpass

B-65.40

Equipment Underpass

 

B-70.20

Beveled End Sections

B-70.60

Flared End Sections

 

B-75.20

Headwalls for Culvert Pipes and Underpasses

B-75.50

Type 1 Safety Bars for Stepped Culvert Pipe or Pipe Arch

B-75.60

Type 2 Safety Bars for Culvert Pipe or Arch (on Cross Road)

B-80.20

Tapered End Section with Type 3 Safety Bars

B-80.40

Tapered End Section with Type 4 Safety Bars

 

B-82.20

Residential Storm Drain, Under Sidewalk

 

B-85.10

Vertical Connection

B-85.20

Side Sewer

B-85.30

Standing Side Sewer Connection

B-85.40

8" Clean Out

B-85.50

Drop Connections for Sanitary Sewers

 

B-90.10

Hydrant Setting Type A and B

 

B-90.20

2-Inch Blow-off Assembly

B-90.30

Combination Air Release/Air Vacuum Valve Assembly

 

B-90.40

Concrete Thrust Block

B-90.50

Concrete Thrust Block for Convex Vertical Bends

 

B-95.20

Median Barrier Drainage Installation

B-95.40

Inlet Placement at Bridge End