County Standard Plans
These standard plans are printable and viewable by using Adobe Acrobat Reader.
You can get a free copy of Adobe Acrobat Reader.
Standard Plan booklets are also available from our receptionists. Booklets are $6.51 each. Mail orders are an additional $5 shipping and handling. Make checks payable to Contra Costa County.
If you have any questions, please call the receptionists at (925) 313-2000. You can download a complete copy of the Standard Plans (PDF), (file size is 3.9Mb) Individual plans can be downloaded in PDF format by selecting the plan number in the table below.
General Road Work
| Plan Number | Plan Name/Description | Date Updated |
|---|---|---|
| CA1 (PDF) | Standard Drafting Symbols/Abbreviations | March 2014 |
| CA10 (PDF) | Required Clearance Design Standards | March 2014 |
| CA20 (PDF) | Driveway Profile Design Standards | March 2014 |
| CA30 (PDF) | Street Barricade | March 2014 |
| CA40 (PDF) | Street Survey Monument | March 2014 |
| CA50 (PDF) | Typical Road Sections for Subdivisions & Road Acceptance | March 2014 |
| CA51 (PDF) | Typical HMA Conform Details for Overlays | March 2014 |
| CA53 (PDF) | Two Lane Rural Road Guidelines | March 2014 |
| CA54 (PDF) | Retrofit Curb Ramps | March 2014 |
| CA55 (PDF) | Speed Bump | March 2014 |
| CA70 (PDF) | Standard Sidewalk Details | March 2014 |
| CA71 (PDF) | Median, Curb, and HMA Dike Details | March 2014 |
| CA72 (PDF) | Driveway Ramp Details | March 2014 |
| CA73 (PDF) | Concrete Valley Gutter Details | March 2014 |
| CA74 (PDF) | Doweling Details for Curb and Sidewalk | March 2014 |
| CA75 (PDF) | Curb Ramp (Type A) Typical Layout | March 2014 |
| CA76 (PDF) | Double Curb Ramps (Type A) Typical Layout | March 2014 |
| CA90 (PDF) | Mailbox Details | March 2014 |
General Construction
| Plan Number | Plan Name/Description | Date Updated |
|---|---|---|
| CB10 (PDF) | Temporary Timber Retaining Wall | March 2014 |
General Drainage
| Plan Number | Plan Name/Description | Date Updated |
|---|---|---|
| CD01 (PDF) | Storm Drain Trench Details | March 2014 |
| CD03 (PDF) | Silt Fence and Haybale Sediment Control Details | March 2014 |
| CD04 (PDF) | Back of Curb Flow Diverter | March 2014 |
| CD05 (PDF) | Gutter Flow for Standard Street Section | March 2014 |
| CD06 (PDF) | Sidewalk Cross Drain & Residential Sidewalk Drain | March 2014 |
| CD07 (PDF) | Storm Drain Utility Crossing at or Below Pipe Soffit | March 2014 |
| CD08 (PDF) | Edge Drain Details | March 2014 |
| CD09 (PDF) | Downdrain Details | March 2014 |
| CD11 (PDF) | Type A, B, & C Inlet Frames and Grates | March 2014 |
| CD12 (PDF) | Maintenance Access Opening | March 2014 |
| CD16 (PDF) | Manhole Top Slab on Existing or New Inlet Base | March 2014 |
| CD20 (PDF) | Type "A" Inlet | March 2014 |
| CD21 (PDF) | Type "B" Inlet | March 2014 |
| CD22 (PDF) | Type "C" Inlet | March 2014 |
| CD23 (PDF) | Type "D" Inlet | March 2014 |
| CD24 (PDF) | Type "E" Inlet | March 2014 |
| CD25 (PDF) | Type "F" Inlet | March 2014 |
| CD26 (PDF) | Type "F" Top Slab & Inlet Opening Details | March 2014 |
| CD27 (PDF) | Type "G" Inlet | March 2014 |
| CD28 (PDF) | Type "H" Inlet | March 2014 |
| CD29 (PDF) | Type "J" Inlet | March 2014 |
| CD30 (PDF) | Precast Manhole, Type I Base, Frame & Cover | March 2014 |
| CD31 (PDF) | Type II Manhole Base | March 2014 |
| CD32 (PDF) | Type III Manhole Base | March 2014 |
| CD33 (PDF) | Type IV Manhole Base | March 2014 |
| CD34 (PDF) | Type V Manhole Base | March 2014 |
| CD35 (PDF) | Std Inlet/Manhole Plan General Notes & Details | March 2014 |
General Drainage - Flood Control Channels
| Plan Number | Plan Name/Description | Date Updated |
|---|---|---|
| CD40 (PDF) | Rock Slope Protection | March 2014 |
| CD50 (PDF) | Rock Slope Protection Pipe Outfall | March 2014 |
| CD52 (PDF) | Type "M" Headwall Structure Details | March 2014 |
| CD60 (PDF) | Concrete "V" Ditch | March 2014 |
| CD61 (PDF) | Concrete "V" Ditch Details | March 2014 |
| CD70 (PDF) | Drainage Facility Chain Link Fence | March 2014 |
| CE01 (PDF) | Temporary ESA Silt Fence | March 2014 |
General Landscaping - Flood Control Channels
| Plan Number | Plan Name/Description | Date Updated |
|---|---|---|
| CH10 (PDF) | Mitigation Landscaping Details | March 2014 |
| CH80 (PDF) | Typical Landscaping Limits on Creek/Channel Embankments | March 2014 |
Signing and Striping
| Plan Number | Plan Name/Description | Date Updated |
|---|---|---|
| CRS1 (PDF) | Signing & Striping Standards | March 2014 |
Utilities
| Plan Number | Plan Name/Description | Date Updated |
|---|---|---|
| CU01 (PDF) | Utility Trench Cut Details | March 2014 |
| CU60 (PDF) | Standard Utility Locations | March 2014 |