General Supplemental Specifications

The following items have been approved by the SUDAS Board of Directors and are available for use.  These items will be included in the 2020 Edition of the SUDAS Specifications Manual in December.  Click on the topic title for the mark up version of the revision; click on the section reference for a clean version of the change.

MAPLE abbreviation and definition (Section 1010, 1.02 and 1.03)
Added abbreviation and definition in order to reference MAPLE within the specifications.

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.

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.

Pipe rehabilitation (Section 4050)
Revised the pipe rehabilitation section based on current practices/products. {Note – revised entire section; no mark up shown}

Internal manhole drop (Section 6010, 1.08, 2.15-2.17, 3.06, and Figure 6010.308)
Developed new figure and specifications language to allow for an internal manhole drop.

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.

Steps in manholes and intakes (Section 6010, 2.13 and Figures 6010.301, 303, 304, 305, 401, 404, 405)
Changed the default to no steps in manholes and intakes.

Rock subbase (Section 6010, 3.01 and Figures 6010.302, 303, 304, 305, 401-406, 501-513)
Added rock subbase to all cast-in-place structures to match precast structures.

Cementitious mortar liner with epoxy seal (Section 6020, 2.03)
Developed ranges as opposed to a single value to allow for more products.

Honeycomb repair (Section 7010, 3.02)
Added information for honeycomb repair of non-formed paving.

Driveway drop curb heights (Figures 7010.102 and 7030.101)
Resolved differences in drop curb heights in new PCC pavements and driveway sections.

Boxouts in HMA pavements (Figure 7020.201)
Expanded options for jointing when HMA is extended through the boxout to the casting.

High performance thin lift overlays (Section 7021, 2.04, C)
Modified binder grade to ensure adequate crack resistance properties.

Driveway flares (Figures 7030.101 and 102)
Clarified that the flare should be 3 to 5 feet for residential and agricultural driveways.

Temporary traffic signals (Section 8010, 1.08 and 3.06)
Expanded payment and removal process for temporary traffic signals.

Page revised: June 11, 2019