Sample SA Change for Deleting Pavement Tining from Concrete Pavement

WHEREAS:This Contract provides for, among other things, fill in the general project description; and

WHEREAS:Special Provision S-?.? provides specifications for Pavement Tining; and

WHEREAS:The Mn/DOT Concrete Engineering Unit has recommended revised specifications for the 2011 construction season; and

WHEREAS:The Engineer has determined, with the concurrence of the Mn/DOT Concrete Engineering Unit, that it is in the best interest of the state and traveling public to incorporate the latest specifications into this Contract.

NOW, THEREFORE, IT IS MUTUALLY AGREED AND UNDERSTOOD THAT:

Section S-?? of the Special Provisions is hereby deleted:

I.2Pavement Tining

Pull a carpet drag longitudinally along the pavement before the concrete attains its initial set to obtain the final finish. Mount the drag on a bridge. Provide a drag with the following dimensions:

(1)As wide as the concrete placed, and

(2)Longitudinal length with sufficient surface contact to produce a texture approved by the Engineer.

Provide an artificial grass type carpeting for the carpet drag meeting the following characteristics and requirements:

(1)Molded polyethylene pile face,

(2)Blade length from ⅝in [15mm] to 1in [25mm], and

(3)Total weight of at least 70oz per sq. yd [2.35kg per sq. m].

Provide a backing made of a strong, durable material not subject to rot with the backing adequately bonded to the facing to withstand the specified use.

Immediately after carpet dragging the pavement surface, use a mechanized device providing a randomized tine spacing from ⅝in [16mm] to 1in [26mm] to apply a transverse metaltine texture to the pavement meeting the following dimensions:

(1)Width from ½in to ⅛in [2 mm to 3mm] and

(2)Depth from ⅛in to 5/16in [3 mm to 8mm].

Do not dislodge coarse aggregate particles. The Contractor may use manual methods to achieve similar results on ramps and other locations as approved by the Engineer. The Contractor may use other texturing equipment to obtain an equivalent texture as approved by the Engineer.

The Engineer will not require metaltine texturing on subsidiary paving areas such as crossovers and parking lanes exempted by the Engineer, or on areas with speed limits no greater than 35mph [55km/h] as specifically exempted by the Contract or the Engineer.

3. This change of Specifications will not result in any changes to Contract Bid prices.

4. Contract time will not be revised except as may be provided in Mn/DOT Specification 1806.

5. The Contractor will not make claim of any kind or character whatsoever for any other costs or expenses that it may have incurred or that may be hereafter incurred for the Work covered in this Supplemental Agreement except as allowed under 1402.2A or 1402.2C.

ESTIMATE OF COST

NONE