| January 20, 2012 | 167 KB
|  | • Clarified 1002.1.2 - Deviation by Local
• Revised 1006.2.2.E - Check Storm Controls
• Clarified 1008.9 - Foundations
• Revised 1105.1 – Roadway Culverts: General
• Removed references to “SS 870 Seeding” since it no longer exists.
• Revised 1106.2.2 – Full Height Headwalls
• Revised 1114.1 Temporary Sediment and Erosion Control
• Revised LD-35
| Location & Design Manual, Volume 2 |
| July 15, 2011 | 44 KB
| | •Replaced all references to the Office of Structural Engineering with the Office of Hydraulic Engineering
•Revised 1002.3.7 Culvert Rehabilitation
•Clarified 1003 Hydrology
•Revised 1008.7 Precast Reinforced Concrete Arch Sections
•Revised 1008.9 Foundations
•Revised 1010 Maintenance of Traffic
•Clarified 1101 Estimating Design Discharge
•Defined “local depression” in 1103.6.2 Grate or Combination Grate and Curb Opening Inlet
•Clarified 1117.2 Manufactured Systems
•Revised Plan Note D124
•Revised LD-30, LD-33 and Fig. 1117 | Location & Design Manual, Volume 2 |
| January 21, 2011 | 16 KB
| | •Section 1006.2.3 Updated web address
•Section 1009.2 Clarified language for underdrains in superelevated sections.
•Figure 1009-11 Typical Pipe Underdrain Locations – New.
•Section 1010 Maintenance of Traffic Drainage – New.
•Section 1104.4.7 Maximum Storm Sewer Slope – New.
•Section 1105.2.2 Depressed invert for box culverts clarified.
•Plan Notes D123 and D124 added.
| Location & Design Manual, Volume 2 |
| October 15, 2010 | 13 KB
| | •Section 1008.1.5 Foundation Report requirements clarified.
•Figure 1008-1 Updated.
•Figure 1008-6 Updated.
•Section 1105.2.5 Energy Dissipater submittal requirements modified.
•Section 1117.1 Exfiltration Trench outlets clarified.
•Section 1117.2 Manufactured System reserve areas clarified. | Location & Design Manual, Volume 2 |
| April 16, 2010 | 14 KB
| | •Section 1002.3 Design life clarified for Type B and C conduit
•Section 1008.1 Cambered flow line and foundation report modified
•Section 1008.2 Cambered flow line modified
•Section 1008.4 Foundation Report modified
•Section 1008.6 Skew language, design specifications and foundation report modified
•Section 1008.7 Skew language clarified and foundation report modified
•Section 1008.8 New section for Precast Reinforced Concrete Round Sections
•Section 1008.9 Renumbered section, modified D50rock definition
•Sections 1008.10-1008.11 Renumbered
•Section 1009.2.1 Added maximum width for underdrain
•Section 1102.3.2 Corrected maximum slope for tied concrete block mat, added clarification for concrete channels
•Section 1103.2 Clarification on spread requirements
•Table 1104-1 Added Outside Diameter
•Section 1104.2.3 New Section for Rock Excavation for Storm Sewer
•Section 1106.2.2 Modify plan requirements for full height headwalls
•Appendix B Modify Plan Notes D103 and D118. Delete Plan Note D120 | Location & Design Manual, Volume 2 |
| July 17, 2009 | 13 KB
| | · Section 1007.1 Clarification to pipe removal policy.
· Section 1008.8 Revision to scour and foundation undercut policy.
· Appendix B Plan Note D118 added | Location & Design Manual, Volume 2 |
| April 17, 2009 | 13 KB
| | · Section 1002.3 Minor revisions for clarity and use of Type F conduit.
· Section 1008.7 Minor revisions for clarity.
· Section 1008.8 Clarity a nd correction of errors in the Scour equations.
· Section 1009.2 Removal of redundant language.
· Figure 1008-13 Revise title to reference rigid pipe rather than concrete.
· Section 1102.3 Revise ditch lining language for clarity and add direction for
use with catch basins
· Section 1103.4 Clarify equation variables.
· Section 1104 Add language for Type F, Broken Back Culverts and storm
sewer design.
· Section 1105.1 Add language for Ordinary High Water Mark
· Section 1105.6.13 New section added to address Ordinary High Water Mark.
· Figure 1104-1 New figure for Type F, Broken Back culvert.
· Appendix B Plan Note D122 deleted. | Location & Design Manual, Volume 2 |
| April 18, 2008 | 13 KB
| | • Section 1002.3.2 Guidance added on conduit placed through MSE walls
• Section 1008.7 Design guidance and criteria for Precast Concrete Arch sections clarified
• 1008.8 Foundations revised based on scour calculation criteria
• 1008.11 Clarification on when to design wingwalls
• 1102.3.2 Clarifications to Ditch Protection
• Table 1103-1 Clarification on design speeds
• 1104.2.1 Clarification on Storm Sewer Depth, added Table 1104-1
| Location & Design Manual, Volume 2 |
| October 19, 2007 | 13 KB
| | • Section 1002.1 has been revised and Sections 1002.1.1 and 1002.1.2 have been added to clarify the pipe policy.
• Section 1002.3.7 Liner Pipe has been added.
• Various sections have been revised regarding design loading requirement updates.
| Location & Design Manual, Volume 2 |
| January 19, 2007 | 13 KB
| | • Post Construction Stormwater Quality BMPs have been revised (sections 1115 through 1118).
• Figure 1118-4 has been revised and Figures 1118-13 through 1118-19 have been added.
• The Sample Plan Note index in Appendix B has been revised.
| Location & Design Manual, Volume 2 |
| October 20, 2006 | 12 KB
| | • Section 1002.2.4 Structure File Number has been added.
• Plan notes D110 and D111 have been added.
• Plan notes D115 and D116 have been revised
| Location & Design Manual, Volume 2 |
| July 21, 2006 | 67 KB
| | • Guidance for SWPPP was revised to reference supplemental specification 832 (section 1114).
• Plan note D122 has been revised.
| Location & Design Manual, Volume 2 |
| April 21, 2006 | 67 KB
| | • Material alternatives are now required for pipe uinderdrains (section 1009.2.1).
• Guidance for SWPPP was revised to reference supplemental specification 832 (section 1114).
• A design flow chart was added for required stream protection at culverts (figure 1105-4).
• Plan notes D110& D111 have been deleted.
• Plan note D122 has been added for precast headwalls, wingwalls, or footers.
• Appendix B, Directive 22A has been deleted.
• Plan notes are now located in Appendix B.
• Design charts and nomographs are now located in Appendix C.
| Location & Design Manual, Volume 2 |
| January, 20, 2006 | 68 KB
| | • Tied Concrete Block Mat design criteria has been revised to use allowable shear stress.
• Stream protection design criteria has been added.
• Revisions have been made to section 1112.2 Maintenance Projects.
• The Post Construction Storm Water Structural Best Management Practices sections 1115-1118 have been revised.
• Figures for section 1115-1118 have been added and or revised.
• Plan note W100 was deleted.
• The LD35 form has been revised. | Location & Design Manual, Volume 2 |
| October 20, 2005 | 68 KB
| | October 20, 2005
• Ephemeral stream have been excluded from bankfull culvert design (section 1105.1)
• Post Construction Storm Water Management Practices have been modified (sections 1115-1118)
• The LD35 form has been revised
• Ephemeral stream have been excluded from bankfull culvert design (section 1105.1)
• Post Construction Storm Water Management Practices have been modified (sections 1115-1118)
• The LD35 form has been revised | Location & Design Manual, Volume 2 |
| April 15, 2005 | 68 KB
| | • Section 1008.11 has been added to address design of culvert wingwalls
• Figure 1008-14 (maximum height of cover for reinforced box culverts) has been revised
• Ditch design has been revised to utilize an allowable shear stress in lieu of an allowable velocity
• Clarifications to section 1115.1 have been added to address maintenance projects
• Clarifications to section 1115.2 have been added to allow for rehabilitation and non-rehabilitation areas within one project
• Guidance for Vegetated Filter Strips has been added
• Figure 1105 has been revised
• The LD35 form has been revised | Location & Design Manual, Volume 2 |
| January 21, 2005 | 69 KB
| | • Added Section 1008.10 to address the design of Precast Reinforced Concrete Flat Slap Tops, Catch Basin Tops, and Inlet Tops.
• Revised Section 1009.2.1 to define types of pipe underdrain.
• Allowable ditch velocities (table 1102-1) have been revised.
• The Post Construction Storm Water Structural Best Management Practices section and figures have been revised.
• The LD35 Form has been revised.
• Plan Note W103 has been added for Manufactured Systems | Location & Design Manual, Volume 2 |
| July 16, 2004 | 60 KB
| | • Metric units and figures have been removed.
• The definition for the Area (A) variable used in the Water Quality Volume (Wqv) equation has been further defined in section 1115.
• The height of cover table for corrugated steel pipe has been revised due to a change in specifications 707.01 & 707.02 in the 2002 CMS. Through a boiler plate addition, these items will require lock or welded seams in lieu of riveted seams.
• Plan notes W99-W102 have been revised. | Location & Design Manual, Volume 2 |
| April 16, 2004 | 60 KB
| | • Incorporated the Post Construction Storm Water Management Interim Policy into the manual.
• Added a Concordance to the manual
• Added Plan Notes for Storm Water Management Items | Location & Design Manual, Volume 2 |
| January 26, 2004 | 62 KB
| | • Management controls for projects ranging from 1-5 acres or not meeting the thresholds have been addressed.
• The impervious ratio has been redefined.
• Bioretention cells are now required to store 100% of the WQv. | Location & Design Manual, Volume 2 |
| January 16, 2004 | 62 KB
| |
• Added several glossary terms
• Added Section 1005.2.3 Down Stream Impacts
• Added Section 1006.2.3 Local Floodplain Coordinator
• Made minor corrections throughout the document
| Location & Design Manual, Volume 2 |
| April 18, 2003 | 63 KB
| | • Revised Section 1112 Notice of Intent (NOI)
• Added Section 1112.2 Maintenance Project to provide guidance for determining if a project is classified as maintenance.
• Revised Section 1114 to clarify guidance for the SWPPP development.
• Revised the NOI Calculator (Figure 1112-1)
• Revised form LD-35 in the appendix
• Revised plan notes D101 and D102 in the appendix | Location & Design Manual, Volume 2 |
| January 17, 2003 | 62 KB
| | • Added section 1008.9 Waterproofing Membrane
• Revised guidance for rock channel protection
• Replaced section 1112 Temporary Sediment and Erosion Control with 1112 Notice of Intent (NOI).
• Revised and relocated section 1112.3 Storm Water Pollution Prevention Plan (SWPPP) to 1114. Revisions reflect Departmental changes of requiring the Contractor to provide the SWPPP.
• Plan notes D109 and D107 were revised and plan notes E106 through E109 were deleted from the appendix.
• Revised From LD-35 in the appendix. | Location & Design Manual, Volume 2 |