General Supplemental Specifications

The following items have been approved by the SUDAS Board of Directors and available for use. These items will be included in the 2027 Edition of the SUDAS Standard Specifications in December. Click on the topic title for the marked up version of the revision; click on the section reference for a clean version of the section that incorporates the change.

Tracer wire (Section 5010, 2.05, B, 1)
Added high molecular weight polyethylene as a tracer wire insulation material for solid single copper conductor.

Epoxy coating requirement (Section 6010, 2.03, B)
Removed the epoxy coating requirement for bars in cast-in-place manholes.

Minimum floor thickness (Figure 6010.301)
Added column to existing table to show minimum floor thicknesses.

Manhole lining system (Section 6020, 1.08, E, 2.04, and 3.04)
Added bid item and product information for a multi-layer polyurea/polyurethane protective lining system for manhole rehabilitation.

Concrete updates (Section 7010)
The concrete paving industry requested some revisions.

Partial depth patches (Section 7092, 3.04)
Corrected size requirements for removing partial depth patches as part of a crack and seat asphalt rehabilitation projects.

Granular shoulders (Section 7100)
Developed new section on granular shoulders.

Granular surfacing (Section 7200)
Developed new section on granular surfacing.

Traffic signal pole foundation (Figure 8010.102)
Various requested revisions are proposed by Iowa DOT.

Grooving for pavement markings (Section 8020, 3.02, J)
Added requirements for dry cutting grooves and maximum limits for groove depth.

 

City Supplemental Specifications

Some cities revise the SUDAS Specifications, creating a city supplemental specifications document. We are collecting a list of city supplemental specifications, which can be found here.

 

Page revised: May 28, 2026