Approved Special Provisions

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Chapter 4 - Portland Cement Concrete (PCC) Pavement
4.01 Materials
B. Reinforcement

Paragraph 1, replace reference to ASTM A775/A775M-16 with ASTM A775/A775M-17

4.11 Curb Ramps

Section 4.11 Curb Ramps, Subsection A. General is void and replaced as follows:

A. General

Curb ramps shall be constructed at the locations shown on the plans or as directed by the City’s Project Manager. Curb ramps thickness shall be equal to the pavement thickness, but no less than 6” and no more than 10”. Said thickness shall be carried out a distance measured no less than 4’ and no more than 6’ measured perpendicular to the back of curb. All curb ramps shall be constructed with DETECTABLE WARNING PANEL material in conformance with the Lincoln Standard Plans.

Chapter 21 - Storm Sewers
Polyethylene Pipe
Bentomat Geosynthetic Clay Liner (GCL) Specification
Concrete Slurry

The Contractor shall at the end of each work day remove the slurry or residue from the saw cut operation. The Contractor shall not permit the residue to flow across shoulders or lanes occupied by traffic or into gutters or other drainage facilities and shall leave slabs clean and dry, with no residue remaining upon completion of sawing operations.

Dewatering

The Contractor is required to follow proper dewatering (e.g. includes sediment bags or use of sediment basins) to avoid eroding the soil on the construction site. Best management practices must be followed when water is being pumped to lakes, wetlands or directly to storm sewer inlets. When selecting discharge areas from a dewatering process, the Contractor shall not permit the water to be pumped directly into slopes, if available, dewatering activities should be directed to a vegetated area such as a well-established grassed area.

The Contractor shall discontinue dewatering if the area being discharged to shows signs of instability or erosion. If utilizing channels, the Contractor must ensure they are stable and protected with grass or vegetation. The Contractor shall avoid dewatering during heavy rain conditions. The Contractor shall never discharge water that has been contaminated with oil, grease, or chemical products, as these would need to be collected and disposed of properly and legally.

General Conditions and RequirementsNew

The following is added to the end of Article VI, Section F – Protection of Work, Property, and Persons: Contractor shall also protect existing roadway surfaces, trails/sidewalks, curbs and public right-of-way areas that are used for staging/storing equipment, completing construction or used for equipment access at their own expense. The Contractor shall determine their own means and methods of protecting the roadways, sidewalks, driveways, curbs, public right-of-way, etc. In all circumstances, absolutely no indentations, gouges, ruts, or other damage to asphalt or concrete surfaces greater than 1/8 INCH shall be permitted. The Contractor shall be responsible for repair or replacement of any damaged roadway surfaces, sidewalks, driveways, etc. that are to remain in place at their own expense, to Public Work’s satisfaction. Heavy equipment shall not be used on sidewalks or over potential areaways.

General Contract Requirements

These Special Provisions amend or supplement the City of Lincoln Standard Specifications for Municipal Construction, 2017 Edition, and other provisions of the Contract Documents as indicated herein. All provisions that are not so amended or supplemented, via these special provisions or the approved supplemental specifications on the City of Lincoln’s website, remain in full force and effect. Traffic Pavement Marking and Traffic Signs shall be installed in accordance with Chapters 13 and 14 of the 2011 Standard Specifications unless amended via these special provisions or project plans.

Remove and Replace Stone Curb