12-02 26000448R General Notes 10.24.25.pdf

Midland Citywide Concrete Program

GENERAL NOTES

1. The Contractor will not be required to mobilize until a minimum of $15,000.00 of contracted work is identified by the City of Midland.

2. Unless otherwise specified, the concrete used shall be City of Midland Class "C”, 3600 PSI, fiber re-enforced.

3. All barricades, signs and traffic control for this project shall conform to the latest edition of the Texas Manual on Uniform Traffic Control Devices for Streets and Highways.

4. Proper traffic control is the sole responsibility of the contractor and shall be in accordance with the TMUTCD.

5. The Contractor shall be responsible for the traffic control plan. The Contractor shall plan and layout the work such that no traffic is allowed on new concrete while it is being placed, finished, or curing.

• Residential streets and minor collectors may be closed during construction;

however, access to properties adjacent to the work zone shall be maintained at all times unless otherwise approved by the City. Contractor shall limit the number of consecutive residential and minor collector street closures. A minimum of two travel lanes (one for each direction) shall remain open at all times on all arterial streets.

6. All traffic control plans for each project shall be submitted to the City of Midland’s Transportation Division (Rick Brown: rbrown@midlandtexas.gov) no less than 48 hours prior to the beginning of construction. It will then be sent to Midland’s Traffic Operations Division for final approval before any construction can commence.

7. Payment for traffic control items in this contract shall include the placement of traffic control devices to channelize and or detour motorists around a work zone for multiple days.

8. Payment for traffic control items shall not include the day-time placement of traffic control devices.

9. Payment for traffic control items shall not include the placement of traffic control devices for the installation of sidewalk and for the installation of ADA compliant curb ramps.

10. Contractor shall make an examination of each project site and completely familiarize themselves with the nature and extent of the work to be accomplished. No extra compensation will be allowed for any work made necessary by unusual conditions or obstacles encountered during the progress of the work, which conditions or obstacles are readily apparent upon a visit to the site.

11. All construction operations shall be accomplished in accordance with applicable regulations of the U.S. Occupational Safety and Health Administration. Copies of the OSHA Standards may be purchased from the U.S. Government Printing Office;

information and related reference materials may be obtained from OSHA; 903 San Jacinto, Austin, Texas.

12. Contractor shall comply with all applicable local, state, and federal requirements regarding excesses and waste material, including methods of handling and disposal.

13. Care shall be used to create a safe work area, with minimal impact on the flow of traffic.

14. Any existing pavement, curbs, and/or sidewalk damaged or removed by the contractor that are not part of this contract are to be repaired by the by the contractor to at least the preexisting condition at his expense before acceptance of the work.

15. Contractor shall make all due precautions to protect existing facilities from damage. Any damage to existing facilities incurred as a result of these construction operations are to be repaired immediately by the contractor to at least the pre-existing condition at no additional cost to the owner.

16. It shall be the responsibility of the contractor to protect cast iron features from damage which may occur during construction. The Contractor shall replace or repair, as directed by the City, any structures damaged during the life of the contract. No payment will be made for repair or replacement of damaged Items.

17. Contractor is responsible for complying with all applicable environmental laws.

18. The project area and surrounding areas that are utilized by the contractor shall be kept in a neat and orderly manner. Project clean up shall be done on a daily basis. Areas that have been chosen by the contractor for storing of material and equipment shall be out of public access and shall not create hazardous conditions for the public. These areas shall be kept in a neat and orderly manner and cleaned on a daily basis. Any revegetation of these areas shall be at the contractor’s expense.

19. Any water hauled to the site during the installation shall be paid by the contractor.

20. Whenever a specified project will impede normal business and/or residential ingress and egress, the Contractor shall provide and distribute notice to all impacted residents and property owners at least three (3) days prior to beginning work.

• Contractor shall indicate application time and when the surface can be used. If necessary, include a map showing closed-off areas.

• Provide phone numbers of at least two (2) individuals who represent the CONTRACTOR who can be reached at any time during the work.

• Warn of potential vehicle tow away and other construction issues affecting the neighborhood.

• Should work not occur on a specified day, contractor shall issue an updated notice.

• If the City of Midland supplies the Contractor with notices, the Contractor shall distribute the City supplied notices instead of their own three (3) days prior to beginning work.

21. The contractor shall not use any facilities of a private property owner without a written agreement that is furnished to the City of Midland. These facilities shall include but not limited to private properties for storage, water, trash receptacles, etc. All City ordinances must be followed.

22. The contractor shall not place spoils on private property without a written agreement that is furnished to the City of Midland.

23. Control of vehicular and pedestrian traffic is of the utmost importance to the City of Midland. A traffic control plan designed to meet the sequence of construction established by the contractor shall be submitted to the City of Midland’s Traffic Operations Division no less than 48 hours prior to the beginning of construction. Construction cannot begin without a traffic control plan approved by the City of Midland’s Traffic Operations Division. The plan shall be detailed for the Sequence of work and not generic. The plan shall be followed at all times. The contractor shall place personnel in charge of the traffic control operation who have been trained in flagging procedures and in barricade and signage operations. In the event the traffic control plan or the traffic operation is not being conducted in the correct manner or according to the approved plan, construction activities shall be stopped until the traffic control procedures are corrected.

24. The Contractor is reminded that this project is located in an urban environment, trees and overhead utility lines are common. The Contractor shall provide the proper equipment to complete the work in the urban environment.

25. The Contractor is responsible for obtaining all necessary permits and coordinating with the Texas Department of Transportation (TxDOT) for work at all intersections with state highways.

26. JOINTS—All concrete pavement joints and any concrete joints located in drainage areas shall be sealed with Texas Department of Transportation (TxDOT) DMS-6310 SL-2 sealant, an American Society for Testing and Materials (ASTM) D 1190 Hot-Applied Single Component Joint Sealant, or a City of Midland (COM) approved equal.

• The cost of sealing joints shall be incidental to the project.

27. Manhole/Valve Adjustments—all existing manholes and valves shall be adjusted to finished roadway elevation, matching the finished cross-slope including concrete collars as per standard city specifications.

• It shall be the responsibility of the contractor to protect cast iron features, not planned for replacement, from damage which may occur during construction.

The contractor shall replace or repair, as directed by the Project Manager, any structures damaged during the life of the contract. No payment will be made for repair or replacement of damaged items.

• Two-way traffic shall be maintained while adjustments are being made to cast iron features. All holes resulting from the initial lowering of manholes and valves shall be filled with material suitable for vehicular traffic. The adjustment of water valve covers and manhole lids to match the new pavement will require a traffic control plan separate from the plan submitted for the Mill and Inlay phase.

• Replacement of cast iron ring & cover and valve boxes shall be accomplished by removing all necessary concrete/asphalt and salvaging the existing R&C or valve box (prior to the milling operation). Upon completion of the removal, the affected areas shall be plated and prepared for asphalt placement. Once the asphalt surface course has been completed, the asphalt shall be saw cut and the R&C or valve box adjusted to the appropriate grade and constructed in accordance with the following standard: Concrete around manholes shall be at least 4’x4’ in a diamond shape (a square turned 45 degrees to the flow of traffic). Concrete around valve boxes shall be at least 2’x2’.

• NOTE—Manhole/Valve Concrete: Concrete used for manholes and valves shall be in accordance with TxDOT standard specifications for Item 421 “Hydraulic Cement Concrete.” Concrete used shall be TxDOT Class K with 3 pounds of TxDOT fiber per cubic yard. Valves and Manholes adjusted with this concrete can be opened to traffic after a 24-hour cure time.

ADDITIONAL NOTES

1. All temporary erosion and sedimentation (E & S) control measures must be properly selected, installed, and maintained in accordance with the TCEQ requirements for construction activities, manufacturer’s specifications and good engineering practices.

Erosion controls protection shall also be placed at storm drain inlets in the work zone. If inspection indicates a control has been used inappropriately, or incorrectly, the Contractor must replace or modify the control for site situations. The controls must remain in place until disturbed areas are revegetated and the areas have become permanently stabilized.

2. Trash bins must be used to control loose litter, construction debris, and construction chemicals exposed to storm water shall be prevented from becoming a pollutant source for storm water discharges (E.G., screening outfalls, picked up daily).Concrete washout are to be lined with 10ml plastic for all construction activities. Concrete washouts are not allowed to be placed in city streets, sidewalks for storage. Spoil piles are not to be placed in city streets (without appropriate erosion control measures).