Shell_Point_Traffic_Calming_Scope.pdf

SHELL POINT TRAFFIC CALMING

Scope of Work

The work will consist of furnishing all materials, labor and equipment for:

Construction of one raised intersection with minor improvements at the intersection of Shell Point Road and Broad River Drive as well as three speed humps on Shell Point Road, five on Broad River Drive and one on Dogwood Street.

All work under this contract shall be done in accordance with the South Carolina Department of Transportation (SCDOT) Standards (specifications, supplemental specifications, drawings and supplemental technical specifications); the latest edition of the Manual on Uniform Traffic Control Devices (MUTCD) and all provisions of SCDOT Encroachment Permit No. 294120.

All materials used in the contract work must be furnished from SCDOT Qualified Products Listing & Policies for Construction. All material certifications and submittals must be approved prior to incorporation into the work.

It is preferred that the Prime Contractor be pre-qualified by SCDOT. All subcontractors must be listed in the bid package or approved by the County in writing prior to performing work on the project.

The contractor shall provide independent third party SCDOT Certified Quality Control Inspections to include:

• Set-up roller patterns, monitor asphalt placement, verify temperature, receiving load tickets.

• Document all work and inspections in accordance with SCDOT procedures. Provide weekly copies of reports to County Project Manager.

• Provide independent SCDOT Certified inspector at plant during batching operations to monitor and document product and tests in accordance with SCDOT requirements.

Project Administration:

Beaufort County Engineering 104 Industrial Village Rd, Bldg. 3 Beaufort, SC 29906

Project Administration will be provided by Beaufort County. Quality assurance inspection will be performed by an independent firm hired by Beaufort County.

Contract Type:

Unit Rate

Quantities are approximate and payment shall be for measurements of actual in-place work as per the plans and specifications. Any quantities exceeding the contract amount shall be requested by the Contractor in writing, for approval by the County, prior to the work being performed.

Payment will not be made for additional quantities without prior written approval of the County.

The cost associated with any incidental items of construction in which no specific pay items are set up for shall be included in the overall cost of the project.

Contract Documents:

Contract Documents include the Shell Point Traffic Calming IFB documents, construction plans and the contract. The technical specifications (SCDOT Standards including Specifications, Drawings, Supplemental Specifications and Supplemental Technical Specifications) for the project are available online and are considered part of the contract documents.

Contract Time:

The Contractor shall agree to commence work under this contract within 10 working days after the Notice to Proceed (NTP) is issued and complete all work within 60 calendar days from NTP.

The Contractor shall work continuously on the project after the Notice to Proceed is issued.

Any punch list work shall be completed within 30 calendar days.

Failure to complete all work within 60 calendar days plus any extension authorized in writing by the County, or complete punchlist work within 30 calendar days, shall entitle the County to deduct Liquidated Damages (LDs). LDs shall be deducted from the monies due the Contractor in the amount of $600 for each calendar day in excess of the authorized construction time as per the SCDOT schedule for liquidated damages 108.9.

Traffic Control:

Traffic Safety is paramount. The Contractor will be responsible for all traffic control, in accordance with the Manual on Uniform Traffic Control Devices, SCDOT standards and all other safety measures that will enhance the safety of the construction site. All costs associated with this work shall be included in the bid price for traffic control. The Contractor shall submit a traffic control plan for approval prior to beginning any work. Any changes to the approved traffic control plan must be submitted and approved in writing.

The contractor shall designate a responsible person with sufficient qualifications who shall be responsible for administering the traffic control plan. This representative shall have successfully completed an advanced or supervisor work zone traffic control training program. The representative shall be on-site anytime work is being performed in or adjacent to the roadway to ensure proper installation, maintenance and removal of appropriate traffic control devices.

Preconstruction Conference:

The Contractor shall attend a pre-construction conference prior to commencing any work on site.

Construction Schedule:

The Contractor shall prepare a detailed schedule showing the sequence of operation and timeline of all phases of construction. The schedule must be submitted and approved prior to beginning work.

Utilities:

The Contractor will be responsible for all utility coordination, including required relocation, and protection of utility facilities.

As-builts:

Contractor shall submit record drawings (marked with any changes) and post construction survey invert elevations for the storm drain pipe.

Clarifications Asphalt indexing using the SCDOT Index will not be utilized for this project.

The milling is intended for the parabolic areas of the raised intersection (6 ft) as well as parabolic portions of the speed humps (3 ft) each side to ensure a minimum lift of 150 lb/sy to the joint.

Time between milling and asphalt application will not exceed 5 calendar days.

Apply temporary paint striping, including stop bars and striping for the raised intersection and speed humps immediately following paving operations.

There is no SWPPP for this project. Silt fence and sediment tubes will be installed as necessary and per the direction of the Engineer.

The Unclassified Value within the contract, as per SCDOT may include but is not limited to:

rock, existing storm drain pipe, soil, relocating suitable materials from one location to another location less than 3,000 LF, asphalt less than 2 inches thick, etc. Unclassified Value, when cross sections are provided, will be paid at 100% of this value, divided over the estimated monthly pay estimates based on the number of contract days. It is the contractor’s responsibility to bring to the immediate attention (within 1 business day) of the County representative if in-field cross sections do not conform to plan dimensions in order to be considered for additional payment.

Borrow Values within the contract, as per SCDOT will be quantified by measurement of placed material. It is recommended the contractor perform elevation verifications prior to, and after removal of surficial organic matter. After placement of borrow to defined cross sections, post elevation verifications will be performed by the Couty to verify the placed borrow conforms to cross sections. If existing elevation verifications are not performed simultaneously with and agreed upon by county and contractor prior to borrow placement, elevations provided by cross sections will be used for calculations of placed borrow. If approved in writing by country, truck count method may be used.

Truck Count Method- A standard quantity of cubic yards per truck will be agreed upon prior to the work. Daily random checks will be performed by the counties representative to verify the truck bed dimensions and volume of fill. No payment will be made for volumes exceeding the standard amount.