Supplemental Specifications

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 2022 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.

Errata and format revisions
Minor errors and formatting revisions.

Payment for extra work (Section 1090, 1.04)
Added standard markup for the general contractor when subcontractor executes an extra work order.

Topsoil requirement and placement (Section 2010, 1.08, D and 3.02)
Updated bid items and execution items for all three options to provide topsoil.

Granular stabilization (Section 2010, 1.08, H)
Added bid item for replacement of unstable material.

Fusible pipe for water mains (Sections 3020, 2.01 and 5011)
Added HDPE fusible pipe to the fusible PVC development specifications, which were on the website, and moved to the Specifications Manual.

Casing pipe (Section 3020, 2.02, A)
Added additional equivalent material to improve availability and potentially reduce costs.

HDPE liner thickness and joints (Section 4010, 2.01, F)
Modified HDPE liner thickness and joint requirements to include additional products.

Water main abandonment (Section 5010, 1.08, F and 3.10)
Added bid item and execution information on abandoning water mains in-place.

Alternate fire hydrant assembly (Section 5020, 1.08, D; 3.03; and Figure 5020.201)
Added bid item for alternate fire hydrant assembly to reflect additional pipe and fittings.

Water main testing and disinfection (Section 5030, 3.01-3.09)
Updated testing procedures to match AWWA C651.

Butyl rubber sealant (Section 6010, 2.09, A, 2, d)
Added softening point requirement for use of high density polyethylene adjustment rings in asphalt.

PCC paving updates (Section 7010, 2.01, H and 3.01, C, 2, h; Section 7011, 3.02, J, 1, e; Section 7040, 3.03, B, 5)
Added reference for new Iowa DOT section on glass fiber reinforced polymer dowel bars and clarified that only metallic bars must be epoxy coated.  Added an acceptable range to accommodate different vibrators for machine paving.  Included requirement for sealing all saw joints.  Sealed the edges of pavement patches with grout.

Concrete boxouts (Figures 7010.103 and 7020.201)
Added requirement for minimum amount of concrete outside of the casting when it is not centered. Added use of ‘B’ joint for post PCC construction cut and extracted boxouts.

Driveway curb transition (Figures 7030.101 and 7030.102)
Added information on the slope of the curb transition at driveways.

Slope of top of curb at sidewalks (Figures 7030.201 and 7030.202)
Added note for top of curb to drain to street when adjacent to Class A sidewalk.

Jointing for PCC patches (Figure 7040.102)
Clarified the type of joint to use.

Crack and seat (Section 7092)
Developed a new specifications section addressing crack and seat projects in urban areas.

Traffic signals (Section 8010)
Revised the section on traffic signals with guidance from the SUDAS Traffic Signal Committee.

Channelizing devices (Section 8030, 2.03)
Added channelizing devices that comply with NCHRP 350 of MASH-16 (Manual for Assessing Safety Hardware).

Sod cultivars (Section 9020, 2.01, A)
Updated list of available cultivars for sod.

Tree planting (Section 9030)
Updated planting specifications based on industry input.

End of season temporary erosion control (Section 9040, 1.08, V)
Provided bid item addition for temporary erosion control to be used when the project will extend over the winter.

Concrete step and wall construction (Section 9080, 2.01, B and Figure 9080.102)
Added setup for independent staging of steps and wall construction.

Page revised: November 9, 2021