April 2022 District Agenda

The files included below have not been approved by the Board of Directors and are merely DRAFT revisions to the SUDAS manuals.


  1. Minutes of the previous meetings and schedule of district meetings
    The minutes of the previous meetings will be considered. The schedule of district meetings will be presented.

Design Manual Items

  1. Complete streets study (Chapters 5, 12, and 13)
    An IHRB project is proposing updates to several shared SUDAS/Iowa DOT sections.  These changes are included in Chapter 5 (geometric tables and elements and complete streets), Chapter 12 (sidewalks, bicycles, pedestrians, and accessible traffic signals), and Chapter 13 (pedestrian elements in traffic signal design).
  2. Separation of water mains from sewer mains (Design Sections 2D-1, F; 3C-1, G; and 4C-1, G; Spec Sections 4010, 3.12; 4020, 3.08; and 5010, 3.06)
    Updated water and sewer separation language based on new Iowa DNR rules.
  3. Street flow criteria (Section 2A-3, Table 2A-3.01 and Table 2A-3.02)
    Added roundabouts to the street classifications related to allowable spread of stormwater.
  4. Storm and sanitary manhole drop (Sections 2C-3, G, 6 and 3C-1, L, 5)
    Added preferred manhole drop of 0.3 feet and maintained minimum of 0.10 feet.

Specifications Manual Items

  1. Clearing and grubbing (Section 2010, 1.08, C and 3.01, D)
    Added “includes” information to lump sum bid item and corrected reference to open burning requirements.
  2. Composite castings (Section 6010, 2.10, C)
    Added composite castings as an alternative product.
  3. Precast top (Figure 6010.301, 303, and 305)
    Added a new note to allow for eccentric flat top in lieu of eccentric cone section.
  4. Cement alternatives (Section 7010, 2.01, A)
    Added Type 1T cement as an option for Type I/II cements; 1T is a ternary blend with slag/limestone or pozzolan/limestone.
  5. Admixtures (Section 7010, 2.01, G)
    Added I.M. 403 reference for approved sources for admixtures including new CarbonCure..
  6. Railroad crossing approaches (Figures 7010.903 and 7020.902)
    Deleted the 1 inch fiber board from the railroad crossing approach figures.
  7. Curing compound (Section 7011, 1.08, A, 7; 2.01, M; and 3.02, E, 3)
    Added liquid curing compound as an option for a bond breaker for PCC overlay of concrete.
  8. Asphalt pavement thickness deficiency (Section 7020, 3.04, C)
    Modified thickness checks for non-uniform pavement sections.
  9. PCC mix for sidewalks, driveways, and shared use paths (Section 7030, 2.01, A)
    Deleted Class B mixes due to high w/c ratio and substituted Class A mix for sidewalks and driveways.
  10. Dowel bars for PCC patches (Section 7040, 2.01, F)
    Added glass fiber reinforced polymer bars for use in full depth PCC patches.
  11. Pavement markings (Section 8020, 2.01)
    Added methyl methacrylate (MMA) to paint products.
  12. Traffic signs and posts (Section 8040)
    Added a new section providing for contractor supplied permanent traffic signs.
  13. Mowing (Section 11,060)
    Added a mowing section to Division 11 to cover measurement, payment, and execution elements as an option to be used when projects extend throughout the growing season.


  1. Discussion items
    • Interested in non-destructive thickness measurements for PCC pavement?
    • Do you consider adjustments (either minor or major) to double grate intakes (SW-505/SW-506) as one or two adjustments for bid purposes?
    • Other?
  2. Iowa Public Works Service Bureau update
    An update on the project will be given. {Click on the link above and register as a member to check out all we have to offer!}
  3. Products and/or research
    District committee members can suggest new products to be proposed for SUDAS manual inclusion; suggestions for potential research projects can also be made at this time.

If you would like to print the whole packet, click here!

(The packet is set up to print double sided, with dividers)

Page revised: April 15, 2022