Design Standards

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Standard Plans

DISCLAIMER

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 that use AutoCad; however, no attempt has been made to ensure that there were no errors in the conversion process. The 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, and 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any and all claims, suits, losses, damages, or costs, including reasonable attorney's fees, arising from the use of outdated design file standards, and such indemnification shall survive acceptance of said file(s) by the Receiver.

The online Standard Plans Manual, effective January 7, 2008, contains engineering drawings that are used for road, bridge, and municipal construction.

Download the entire Standard Plans Manual (pdf, 100 mb)

Drawings

Each drawing has been prepared under the direct supervision of a professional engineer, licensed in the state of Washington, knowledgeable in the specialized field of civil engineering depicted in that drawing. These drawings standardize fabrication, installation, and construction methods for specific items of work, and complement the contract documents and the Standard Specifications for Road, Bridge, and Municipal Construction. Superseded manuals may be accessed through the Standard Plans Manual Archive.

Standard Plans Process

Updating the contents of the manual is a continual process, and revisions/ replacements are issued periodically (approximately every eight months). See Explanation of Standard Plans Process for details. 

Superceded and new plans awaiting inclusion in the next issue are available for viewing and downloading on the Future Standard Plans site. These may be included in forthcoming contracts as detail sheets, if needed. There may also be revisions to the plans made via the Standard Plans GSP.

Questions, comments, and recommendations for changes are welcome. A Comment Form is provided to encourage comments and to assure their prompt delivery. Use prints of the form to send any hard copies of marked-up plans, etc.

Your comments should be sent to Design Standards, Transportation Building, Olympia, WA 98504-7329. If you prefer, you may e-mail your comments and electronic attachments to: DesignStandards@wsdot.wa.gov

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Legend: Standard Plans Online Manual

The online Standard Plans Manual offers three options:

  • Plans for viewing or printing as pdf files
  • CAD drawings (.dgn & .dwg)for downloading as zip files 
  • technical commentary for viewing or printing as pdf files

Adjacent to each entry are links: view opens a .pdf version of the plan, and dnld (download) retrieves a .zip file containing the CAD files (.dgn & .dwg) of the respective plan. An underlined plan identifier, for example B-5.20-00, is a link to a technical commentary for that plan.

The next Standard Plans Manual revision, due approximately August 2008, will be posted to this page. 

Free Tools

Standard Plans Manual and Downloads 

Section A

Roadway Construction

Section B

Drainage Structures and Hydraulics

Section C

Traffic Barrier

Section D

Retaining Walls, Noise Walls, and Geosynthetic Walls

Section E

Bridges and Trestles

Section F

Curbs, Sidewalks and Driveways

Section G

Signs and Sign Supports

Section H

Delineators and Miscellaneous Construction

Section I

Roadside and Site Development

Section J

Illumination and Signals

Section K

Work Zone Traffic Control

Section L

Fence and Glare Screen

Section M

Pavement Marking

 

STANDARD PLANS        Table of Contents


Section A    Roadway Construction

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A-10.10-00

Survey Stakes

8/7/07   

2 sheets

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A-10.20-00

Survey Monument Types 1 and 2

10/5/07

 

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A-10.30-00

Monument Case and Cover

10/5/07

 

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A-20.10-00

Slope Treatment

8/31/07

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A-30.10-00

Concrete Slope Protection

11/8/07

 

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A-30.15-00

Semi-Open Concrete Masonry Slope Protection

11/8/07

 

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A-30.30-00

Wire Mesh Slope Protection

11/8/07

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A-30.35-00

Slope Protection Anchors

10/12/07

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A-40.10-00

Cement Concrete Pavement Joints

10/5/07

 

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A-40.20-00

Bridge Transverse Joint Seals for HMA

9/20/07

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A-40.50-00

Bridge Approach Slab

11/8/07

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A-60.10-00

Cement Concrete Pavement Repair

10/5/07

2 sheets

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A-60.20-00

Dowel Bar Retrofit for Cement Concrete Pavement

10/5/07

3 sheets

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A-60.30-00

Bridge Deck Transition for HMA Overlay

10/5/07

3 sheets

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A-60.40-00

HMA Overlay:  Further Deck Preparation

8/31/07

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Section B     Drainage Structures and Hydraulics

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B-5.20-00

Catch Basin Type 1

6/1/06

 

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B-5.40-00

Catch Basin Type 1L

6/1/06

 

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B-5.60-00

Catch Basin Type 1P (for Parking Lot)

6/1/06

 

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B-10.20-00

Catch Basin Type 2

6/1/06

 

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B-10.40-00

Catch Basin Type 2 with Flow Restrictor

6/1/06

 

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B-10.60-00

Catch Basin Type 2 with Baffle Type Flow Restrictor

6/8/06

 

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B-15.20-00

Manhole Type 1

6/1/06

 

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B-15.40-00

Manhole Type 2

6/1/06

 

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B-15.60-00

Manhole Type 3

6/1/06

 

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B-20.20-01

Drywell Type 1 (for Swale)

11/21/06

 

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B-20.40-01

Drywell Type 2 (with Pipe Inlet)

11/21/06

 

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B-20.60-01

Drywell Type 3 (with At-Grade Inlet)

11/21/06

 

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B-25.20-00

Combination Inlet

6/8/06

 

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B-25.60-00

Concrete Inlet

6/1/06

 

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B-30.10-00

Rectangular Frame (Reversible)

6/8/06

 

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B-30.20-01

Rectangular Solid Metal Cover

11/21/06

 

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B-30.30-00

Rectangular Vaned Grate

6/1/06

 

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B-30.40-00

Rectangular Bi-Directional Vaned Grate

6/1/06

 

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B-30.50-00

Rectangular Herringbone Grate

6/1/06

 

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B-30.70-00

Circular Frame (Ring) and Cover

8/31/07

 

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B-30.80-00

Circular Grate

6/8/06

 

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B-30.90-01

Miscellaneous Details for Drainage Structures

9/20/07

 

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B-35.20-00

Grate Inlet Type 1 (Cast-In-Place)

6/8/06

 

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B-35.40-00

Grate Inlet Type 2

6/8/06

2 sheets

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B-40.20-00

Welded Grates for Grate Inlet

6/1/06

 

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B-40.40-00

Frame and Dual Vaned Grates for Grate Inlet

6/1/06

 

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B-45.20-00

Drop Inlet Type 1

6/1/06

 

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B-45.40-00

Drop Inlet Type 2

6/1/06

 

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B-50.20-00

Grates for Drop Inlet

6/1/06

 

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B-55.20-00

Pipe Zone Bedding and Backfill

6/1/06

 

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B-60.20-00

Connection Details for Dissimilar Culvert Pipe

6/8/06

 

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B-60.40-00

Coupling Bands for Corrugated Metal Pipe

6/1/06

 

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B-65.20-00

Animal/Pedestrian Underpass

6/1/06

 

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B-65.40-00

Equipment Underpass

6/1/06

 

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B-70.20-00

Beveled End Sections (for Culverts 30” Diameter or Less)

6/1/06

 

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B-70.60-00

Flared End Sections

6/1/06

 

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B-75.20-00

Headwalls for Culvert Pipe and Underpass

6/1/06

 

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B-75.50-00

Type 1 Safety Bars for Stepped Culvert Pipe or Pipe Arch

6/8/06

 

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B-75.60-00

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

6/8/06

 

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B-80.20-00

Tapered End Section with Type 3 Safety Bars

6/8/06

 

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B-80.40-00

Tapered End Section with Type 4 Safety Bars (On Cross Road)

6/1/06

 

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B-82.20-00

Residential Storm Drain, Under Sidewalk

6/1/06

 

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B-85.10-00

Vertical Connection (for Sanitary Sewer Use)

6/1/06

 

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B-85.20-00

Side Sewer Connection (for Sanitary Sewer Use)

6/1/06

 

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B-85.30-00

Standing Side Sewer Connection (for Sanitary Sewer Use)

6/1/06

 

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B-85.40-00

8 Inch Sewer Clean-Out (for Sanitary Sewer Use)

6/8/06

 

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B-85.50-00

Drop Connections (for Sanitary Sewer Use)

6/8/06

 

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B-90.10-00

Hydrant Setting Types A and B

6/8/06

 

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B-90.20-00

2 Inch Blowoff Assembly

6/8/06

 

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B-90.30-00

Combination Air Release / Air Vacuum Valve Assembly

6/8/06

 

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B-90.40-00

Concrete Thrust Block

6/8/06

 

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B-90.50-00

Concrete Thrust Block for Convex Vertical Bends

6/8/06

 

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B-95.20-00

Median Barrier Drainage Installation

6/8/06

 

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B-95.40-00

Inlet Placement at Bridge End

6/8/06

 

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Section C     Traffic Barrier

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C-1

Beam Guardrail: Types 1 ~ 4 (W-Beam)

2/6/07

2 sheets

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C-1a

Beam Guardrail (Thrie Beam)

7/31/98

 

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C-1b

Beam Guardrail Posts and Blocks

10/31/03

2 sheets

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C-1c

Beam Guardrail

5/30/97

 

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C-1d

Thrie Beam Guardrail Reducer Section

10/31/03

 

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C-2

Guardrail Placement (Cases 1, 2 & 3)

1/6/00

 

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C-2a

Guardrail Placement (Cases 4, 5 & 6)

6/21/06

 

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C-2b

Guardrail Placement (Cases 7 & 8)

6/21/06

 

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C-2c

Guardrail Placement, Median Bull Nose
(Cases 9A, 9B & 9C)

6/21/06

 

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C-2d

Guardrail Placement (Cases 10A, 10B & 10C)

6/21/06

 

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C-2e

Guardrail Placement (Cases 11A, 11B & 11C)

6/21/06

 

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C-2f

Guardrail Placement, Weak Post Intersection Design (8' - 6" Max. Radius) (Cases 12AC, 12AD,
12BC & 12BD)

3/14/97

 

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C-2g

Guardrail Placement, Weak Post Intersection Design (35' Max. Radius) (Cases 13AC, 13AD, 13BC & 13BD)

7/27/01

 

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C-2h

Guardrail Placement (Case 14)

3/28/97

 

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C-2i

Guardrail Placement (Case 15)

3/28/97

 

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C-2j

Guardrail Placement (Cases 16, 17 & 18)

6/12/98

 

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C-2k

Guardrail Placement 12’ - 6” Span (Cases 19A & 19B)

7/27/01

 

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C-2n

Guardrail Placement 18’ - 9” Span (Case 20)

7/27/01

 

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C-2o

Guardrail Placement 25’ Span (Case 21)

7/13/01

 

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C-2p

Guardrail Placement, Strong Post Intersection Design (Cases 22AC, 22AD, 22BC & 22BD)

10/31/03

 

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C-2q

Barrier Placement, Cable Barrier to
W-Beam Connections (Cases 23 & 24)

3/3/05

 

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C-2r

Barrier Placement, Cable to Thrie Beam Bull Nose Connection (Case 25)

3/3/05

 

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C-2s

Barrier Placement, Cable to W-Beam Shielding for Redirectional Landform (Case 26)

3/3/05

 

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C-2t

Barrier Placement, Cable Barrier Shielding for Redirectional Landform (Case 27)

3/3/05

 

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C-3

Beam Guardrail Transition Sections
(Types 1, 1A, & 1B)

10/4/05

 

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C-3a

Beam Guardrail Transition Sections
(Types 2, 4, 5, & 6)

10/4/05

 

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C-3b

Beam Guardrail Transition Sections
(Types 10 ~ 15)

10/4/05

2 sheets

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C-3c

Beam Guardrail Transition Sections
(Types 16, 17, & 18)

6/21/06

 

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C-3d

Cable Barrier Type 3 Transition to
W-Beam Guardrail

3/3/05

2 sheets

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C-4

Beam Guardrail Buried Terminal Type 1

2/21/07

 

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C-4a

Beam Guardrail Buried Terminal Type 2

2/21/07

 

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C-4b

Beam Guardrail Flared Terminal

6/8/06

 

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C-4e

Beam Guardrail Non-Flared Terminal

2/20/03

 

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C-4f

Beam Guardrail Bull Nose Terminal

6/30/04

4 sheets

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C-5

Guardrail Connection to Bridge Rail or Concrete Barrier

10/31/03

 

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C-6

Beam Guardrail Anchor Type 1

5/30/97

2 sheets

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C-6a

Beam Guardrail Anchor Type 2

3/14/97

 

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C-6c

Beam Guardrail Anchor Type 4

1/6/00

 

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C-6d

Beam Guardrail Anchor Type 5

5/30/97

 

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C-6f

Beam Guardrail Anchor Type 7

7/25/97

 

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C-7

Beam Guardrail End Sections

10/31/03

 

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C-7a

Thrie Beam End Sections

10/31/03

 

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C-8

Concrete Barrier Type 2

4/27/04

2 sheets

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C-8a

Concrete Barrier Type 4 and Transition Section

7/25/97

 

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C-8b

Concrete Barrier Light Standard Section

1/11/06

2 sheets

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C-8e

Precast Concrete Barrier Anchor ~ Type 3 (Permanent)

2/21/07

 

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C-8f

Concrete Barrier Transition, Type 2 to Bridge F-Shape

6/30/04

 

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C-10

Box Culvert Guardrail Steel Post

7/31/98

2 sheets

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C-11

Cable Barrier

5/20/04

 

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C-11a

Cable Barrier Placement

5/20/04

 

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C-11b

Cable Barrier Terminal

5/20/04

2 sheets

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C-12

Impact Attenuator Inertial Barrier Configurations

7/27/01

 

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C-13

Single Slope Barrier Pre-Cast Type

4/16/99

2 sheets

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C-13a

Single Slope Barrier Pre-Cast Type,
Transition Section

4/16/99

 

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C-13b

Single Slope Barrier Pre-Cast Type, Single Sided Section

4/16/99

 

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C-14a

Single Slope Concrete Barrier (Dual Face)

7/26/02

 

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C-14b

Concrete Barrier Transition, Type 2 to Single Slope

7/26/02

 

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C-14c

Single Slope Concrete Barrier Terminal

7/26/02

 

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C-14d

Single Slope Concrete Barrier Transition Section

7/26/02

 

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C-14e

Single Slope Concrete Barrier (Vertical Back)

7/26/02

 

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C-14f

Single Slope Concrete Barrier Placement (splitting or merging)

9/2/05

 

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C-14g

Single Slope Concrete Barrier Placement (taper for pier wrap)

11/21/06

 

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C-14h

Single Slope Concrete Barrier Light Standard Foundation

1/11/06

 

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C-14i

Single Slope Concrete Barrier Sign Bridge Foundation

12/2/03

2 sheets

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C-14j

Single Slope Concrete Barrier Transition for Monotube Sign Support

12/2/03

 

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C-14k

Single Slope Concrete Barrier Cantilever Sign Structure Fdn.

1/11/06

2 sheets

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C-16a

Traffic Barrier Shoulder Widening ~ for Shoulders 8.0' and Wider

11/8/05

 

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C-16b

Traffic Barrier Shoulder Widening ~ for Shoulders Less Than 8.0' Wide

11/8/05

 

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C-20.14-00

Beam Guardrail Type 31: Placement (Cases 1A, 2A, & 5A)

2/6/07

 

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C-20.40-00

Beam Guardrail Type 31: Placement ~ 12'-6", 18'-9", or 25'-0" Span

2/6/07

 

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C-22.40-01

Beam Guardrail Type 31: Non-Flared Terminal

10/5/07

 

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C-23.60-00

Beam Guardrail (Type 31): Anchor Type 10

2/6/07

 

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C-25.18-01

Beam Guardrail (Type 31): Transition Section Type 20

9/20/07

 

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C-25.20-01

Beam Guardrail (Type 31): Transition Section Type 21

9/20/07

 

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C-25.22-01

Beam Guardrail Type 31: Transition Section Type 22

10/5/07

 

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C-25.80-00

Beam Guardrail Type 31: Transition to Beam Guardrail Type 1

9/20/07

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C-28.40-00

Beam Guardrail Type 31

2/6/07

 

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Section D     Retaining Walls, Noise Walls, and Slope Protection

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D-1a

Reinforced Concrete Retaining Wall Type 1 and 1 SW

1/23/02

2 sheets

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D-1b

Reinforced Concrete Retaining Wall Type 2 and 2 SW

10/6/99

2 sheets

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D-1c

Reinforced Concrete Retaining Wall Type 3 and 3 SW

10/6/99

2 sheets

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D-1d

Reinforced Concrete Retaining Wall Type 4 and 4 SW

10/6/99

2 sheets

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D-1e

Reinforced Concrete Retaining Wall Type 5 and 5 SW

1/23/02

2 sheets

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D-1f

Reinforced Concrete Retaining Wall Type 6 and 6 SW

10/6/99

2 sheets

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D-2.02-00

Noise Barrier Wall Type 1 (CIP Conc. on Trench Footing)

11/10/05

 

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D-2.04-00

Noise Barrier Wall Type 2 (CIP Conc. on Spread Footing)

11/10/05

2 sheets

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D-2.06-00

Noise Barrier Wall Type 3 (… on Offset Spread Footing)

11/10/05

2 sheets

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D-2.08-00

Noise Barrier Wall Type 4 (CIP Conc. on Shaft Foundation)

11/10/05

2 sheets

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D-2.10-00

Noise Barrier Wall Type 5 (CIP Conc. with Traffic Barrier on Trench Footing)

11/10/05

 

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D-2.12-00

Noise Barrier Wall Type 5SS (CIP Conc. w/ Single Slope Traffic Barrier on Trench Footing)

11/10/05

 

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D-2.14-00

Noise Barrier Wall Type 6 (CIP Conc. with Traffic Barrier on Spread Footing)

11/10/05

 

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D-2.16-00

Noise Barrier Wall Type 6SS (CIP Conc. w/ Single Slope Traffic Barrier on Spread Footing)

11/10/05

 

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D-2.18-00

Noise Barrier Wall Type 7 (CIP Conc. with Traffic Barrier on Shaft Foundation)

11/10/05

 

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D-2.20-00

Noise Barrier Wall Type 7SS (CIP Conc. w/ Single Slope Traffic Barrier on Shaft Fdn.)

11/10/05

 

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D-2.30-00

Noise Barrier Wall Type 8 (Precast Conc. on Trench Footing)

11/10/05

 

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D-2.32-00

Noise Barrier Wall Type 9 (Precast Conc. on Spread Footing)

11/10/05

2 sheets

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D-2.34-00

Noise Barrier Wall Type 10 (… on Offset Spread Footing)

11/10/05

2 sheets

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D-2.36-01

Noise Barrier Wall Type 11 (... on Shaft Foundation)

11/10/05

3 sheets

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D-2.38-00

Noise Barrier Wall Type 12 (Precast Conc. with Traffic Barrier on Trench Footing)

11/10/05

 

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D-2.40-00

Noise Barrier Wall Type 12SS (Precast w/ Single Slope Traffic Barrier on Trench Footing)

11/10/05

 

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D-2.42-00

Noise Barrier Wall Type 13 (Precast Conc. with Traffic Barrier on Spread Footing)

11/10/05

 

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D-2.44-00

Noise Barrier Wall Type 13SS (Precast w/ Single Slope Traffic Barrier on Spread Footing)

11/10/05

 

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D-2.46-00

Noise Barrier Wall Type 14 (Precast Conc. w/ Traffic Barrier on Shaft Foundation)

11/10/05

2 sheets

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D-2.48-00

Noise Barrier Wall Type 14SS (Precast Conc. w/ Single Slope Traffic Barrier on Shaft Fdn.)

11/10/05

2 sheets

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D-2.60-00

Noise Barrier Wall Type 16 (Masonry on Trench Footing)

11/10/05

2 sheets

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D-2.62-00

Noise Barrier Wall Type 17 (Masonry on Spread Footing)

11/10/05

2 sheets

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D-2.64-00

Noise Barrier Wall Type 18 (Masonry on Offset Spread Ftg.)

11/10/05

2 sheets

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D-2.66-00

Noise Barrier Wall Type 19 (Masonry on Shaft with Grade Beam Foundation)

11/10/05

2 sheets

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D-2.68-00

Noise Barrier Wall Type 20 (Masonry on Shaft Foundation)

11/10/05

2 sheets

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D-2.78-00

Noise Barrier Wall Type 15 (Timber Panel on Trench Footing)

11/10/05

 

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D-2.80-00

Noise Barrier Wall Access Door Type 1 (Cast-In-Place)

11/10/05