01-Project_Great_Glen_Intersections-Improvements.doc

Greenville County Public Works Department Engineering/Maintenance Division off. (864) 467-7017, mob. (864) 982-7155 E-mail: jhamam@greenvillecounty.org

Project Description

Great Glen Road (J-0015) Intersections Drainage Improvements Project Project Location

The project site is located on Great Glen Road off Del Norte Road near the intersections with Sutherland Hill Drive, Coat Bridge Road and Wetherill Road in Del Norte Subdivision in Greenville, South Carolina. The project site occupies land on the County right of way and on private parcels. The contractor shall take all the necessary measures to ensure the safety of the public and not to damage the utility lines or properties. The contractor shall be responsible for any damage(s) occurs to the utility lines, private properties and shall be responsible for the required repairs at contractor’s expense. The contractor is required to contact all utilities and coordinate the location of their lines.

Project Scope The main purpose of the project is to improve the drainage system at the (3) different intersections off Great Glen Rd. The work consists of the replacement of existing lines and the installation of new storm drainage lines and catch basin(s). Contractor shall be required to remove existing vegetations, fences, asphalt, Curb and existing storm drainage systems to be re-placed with new. The Contractor shall coordinate with utility companies prior to start construction. The contractor shall submit detour plans and have the plans approved by the County prior to any road closing.

The work will impact the following:

a) Roads in the subdivision and side streets.

1. Great Glen Rd.

2. Coat Bridge Rd.

3. Sutherland Hill Drive

4. Wetherill Rd.

b) Several private properties for the purposes of installing/upgrading the drainage system.

c) Utilities to be identified and coordinated by the contractor prior to star of work.

· Contractor to follow all Greenville County and SCDOT requirements.

· Contractor to ensure all proper notifications to county and citizens of road closer prior to closing a road.

· Contractor is responsible for obtaining, maintaining and restoring the staging area.

This project includes, but is not limited to, the following:

· Contractor to notify each property owner prior to saw cutting driveway in order to move vehicles out.

· Demolition, removal and disposal of the existing drainage system, driveway aprons, curbs, trees, plant material, etc. as necessary to make room for the new drainage system and road improvements.

· Remove and re-install mail boxes. Contractor to ensure sprinkle system working prior to start any work and to restore the system after work has been completed.

· Installation of approximately a variety of 15” , 18”and 24” HP Smooth Wall Pipe (see project plans)

· Install drainage structures with man hole cover as shown on each intersection project plans

· Removing existing asphalt pavement, and adjusting concrete driveways

· Contractor shall install a concrete collar around all new Yard Inlet.

· Replacements of existing concrete/asphalt curb, driveways impacted by the project.

· Placing Asphalt Surface, driveways and curb in impacted areas and as directed by engineer.

· Remove & re-install sprinkle lines for each property. Contractor is responsible to ensure each sprinkle system is working before start work and once work is completed.

· Installation and maintenance of erosion control measures to include perimeter control devices, inlet protection devices, sediment traps, erosion control blanket (ECB), temporary stone check dams, temporary mulching/grassing, and other measures for stabilization as needed.

· The contractor is responsible for permanent grassing/stabilization of all disturbed areas and removal of all sediment controls and accumulated sediment after permanent grassing is established to match each yard.

· Additional items included in the project are shown on the project plans.

Project Duration

The contractor shall be allowed 90 calendar days for substantial completion of the project to include all demolition, storm drainage installation, roadway recycling, paving, fine grading, clean up and permanent grassing. Final punch list items, removal of erosion control devices and project close‑out shall be accomplished within 15 days after substantial completion.

Best Management Practices

Please refer to the erosion and sediment control plan for BMPs to be installed on the project. The contractor is responsible for erosion control. A listing of the Best Management Practices (BMPs) to be used on the site consists of the following:

Sediment Tubes. Sediment tubes on the upstream and downstream ends of the excavation for the new box culvert.

Grassing. Grassing of all disturbed areas on the project site has been specified with appropriate mixtures of various seed varieties based on the planting season. The contractor is to coordinate with each property owner about the grassing schedule.

SPECIFICATIONS REFERENCE:

1.

Definition: Specifications pertain to written standards and requirements for materials, construction procedures, testing, quality control, and workmanship for the project. The specifications to be used for the project shall include, but are not be limited to the following:

2.

Construction Plans: Designed by TranSystems, specifications are shown as notes, text, and details in the project design plans.

3.

SCDOT Standard Specifications: All workmanship and materials provided on the project shall conform to the requirements contained in the South Carolina Department of Transportation Standard Specifications for Highway Construction (Edition of 2007) including applicable addenda and errata issued by SCDOT and with amendments as noted in the General Conditions.

4.

SCDOT Supplemental Specifications: All workmanship and materials provided on the project shall conform to all applicable supplemental specifications issued by SCDOT.

5.

SCDOT Standard Drawings: The contractor shall comply with current Standard Drawings (English version) issued by SCDOT.

6.

Unspecified Items: Any items shown in the construction plans which are not covered in the SCDOT Standard Specifications shall comply with the current County of Greenville Engineering Department Standard Specifications.

7. Precedence: Any apparent discrepancies between project plans and specifications should be called to the attention of the City/County Project Manager for resolution. Until resolution is issued in written form, project plans have precedence over specifications.

Underground Utility Protection: Existing underground utilities on the public and private lands may not be shown or, if shown, they may not be shown in their entirety. It is the Contractor’s responsibility to coordinate with the local utility locating service and/or the utility providers to locate all underground utilities within the project limits, and it is the Contractor’s responsibility to take whatever precautions necessary during construction to safeguard the condition of the underground utilities.

Contract Time: All work specified herein must be substantially completed in (60) calendar days from Notice to Proceed. If the contractor fails to substantially complete the work within the specified time, liquidated damages per SCDOT Specifications Section 108.9 or as described in this bid package may be assessed up to value of the contract (total bid). The penalty may be drawn from any payment due, or the performance bond, at the discretion of the County of Greenville.

Inspections, Certifications, and Testing Responsibility: On this project, the parties responsible for providing inspections, certifications and testing on the project are shown in the table below. The costs for providing inspections, testing and certifications including labor, equipment, transportation, consumables, and any other incidental costs shall be borne by the responsible party. Any repeat inspections, certifications, or testing required for rework and/or to rectify substandard work or materials on the project shall be provided by and paid for by the responsible party.

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