April 2019 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 April meeting will be considered. The schedule of district meetings will be presented.
  2. Board of Directors meeting minutes
    A summary of actions from the October Board electronic vote will be presented.

Design Manual Items

  1. Clear zones in urban areas (Section 5C-1, Table 5C-1.05)
    Set the preferred and acceptable clear zone on low speed urban roadways without consideration for roadway classification.
  2. LED street lighting (Chapter 11)
    Updated chapter to reflect use of LED street lighting.
  3. Temporary traffic control (Sections 13B-1 through 13B-6)
    Added section on the design requirements for work zone traffic control.

Specifications Manual Items

  1. MAPLE abbreviation and definition (Section 1010, 1.02 and 1.03)
    Added abbreviation and definition in order to reference MAPLE within the specifications.
  2. Compaction testing for subgrade cut sections (Section 2010, 3.06)
    Clarified that moisture and density elements should be used for compaction in subgrade cut section compaction.
  3. Linear trench drain (Section 4020, 1.08, 2.02, 3.04, and Figure 6010.521)
    Added linear trench drain as joint SUDAS/Iowa DOT specifications and figure.
  4. Pipe rehabilitation (Section 4050)
    Revised the pipe rehabilitation section based on current practices/products.
  5. Intakes (Section 6010, 2.01 and Figures 6010.515, 541, 542, and 545)
    Developed a new figure for a double well area intake. Added three Iowa DOT figures – open-throat curb intake under pavement, extension unit for open-throat curb intake under pavement, and single open-throat curb intake with extended opening.
  6. Adjustable casting (Section 6010, 2.01, D; 3.01, J; and Figures 6010.601 and 602)
    Revised text and figures to allow for an additional adjustable casting.
  7. Cementitious mortar liner with epoxy seal (Section 6020, 2.03)
    Developed ranges as opposed to a single value to allow for more products.
  8. Honeycomb repair (Section 7010, 3.02)
    Added information for honeycomb repair of non-formed paving.
  9. Driveway drop curb heights (Figures 7010.102 and 7030.101)
    Resolved differences in drop curb heights in new PCC pavements and driveway sections.
  10. Boxouts in HMA pavements (Figure 7020.201)
    Expanded options for jointing when HMA is extended through the boxout to the casting.
  11. High performance thin lift overlays (Spec Sect 7021, 2.04, C; Design Sect 5J-1, C, 1, b)
    Modified binder grade to ensure adequate crack resistance properties.
  12. Driveway flares (Spec Figures 7030.101 and 102; Design Section 5L-4, C)
    Clarified that the flare should be 3 to 5 feet for residential and agricultural driveways.
  13. Temporary traffic signals (Section 8010, 1.08 and 3.06)
    Expanded payment and removal process for temporary traffic signals.


  1. Discussion items
    • Provide additional guidance on construction staking when 3D design models are available? Committee to develop?
    • Identify specific trench dewatering control techniques (gravity bag filter, gravity tank, etc.)?
    • Erosion and sediment control applications:
      • Add slash berms?
      • Add anchored temporary coverings?
      • Delete compost filter berms?
    • Should we add bid item and execution elements for abandoning water mains?
    • Should we specifically identify the type of water valve tapping assembly in bid item and product sections – wet tap or insertion?
    • As their use increases, do 3D plans ever become the plans that govern?
    • Other?
  2. Products and/or research

Page revised: April 1, 2019