6th_Street_Southgate_to_SW_Gate_Seed_SOW.pdf

R&R 6th Street Southgate to SW Gate Work Order: XXXXX

Seed Task Order for Paving IDIQ Statement of Work (SOW)

13 February 2017

General Requirements:

The contractor shall coordinate all work with the Government Project Manager (PM). The contractor shall notify the PM prior to beginning any work.

The contractor shall provide all labor, material, equipment, testing, transportation, and lodging to accomplish the following in accordance with requirements contained in this document and the contract specifications.

The contractor shall conform to all standards and specifications in the Unified Facilities

Guide Specifications (UFGS), Base Facility Design Standards (BFDS), and common construction industry practices. UFGS specifications edited to fit this task order shall be provided to the contractor. The contractor shall thoroughly review these edited specifications and follow them accordingly.

The contractor shall submit and have approval of all materials prior to placement/using and provide all required red-line drawings, training, as-built drawings, O&M manuals, and/or documentation to the PM prior to final inspection.

All weigh tickets shall be delivered to the project manager daily upon delivery of material. All

Quality Control (QC) test results shall be provided to the PM immediately following testing completion.

The period of performance for this project is 240 Calendar Days from the issuance of the notice to proceed (NTP).

The contractor shall obtain a base Civil Engineering Excavation Permit from the Civil Engineer PM before commencement of work. The permit is good for 30 days and shall be kept valid and on site during excavation work.

The contractor is strongly encouraged to attend the site visit to verify location and quantities.

When contractor submits their proposal it shall be detailed and specific to include types of base course (UDOT Recommended), HMA, concrete, independent tester, equipment being used, drawings and tutorials explaining the surveying and engineering plans, construction processes and plans, phasing and traffic control plans, safety plans, quality control plan, etc.

These items must be included with the proposal and approved by the Contracting Officer (CO)/PM, no later than one week prior to the issuance of NTP.

Upon award, the contractor shall have the project surveyed by a licensed professional surveying/ engineering firm and CAD drawings created for the drainage and grading plans.

These plans must be approved by the CO/MP prior to breaking ground. During construction the project shall be laid out by the licensed professional surveying/engineering firm.

The contractor must submit a construction post award schedule and materials submittals to be approved by the project manager within 5 Calendar Days of award.

The contractor shall coordinate with the PM in order to provide reasonable access and operation of the building during construction. Work schedules must be coordinated with PM to ensure access to job site.

The contractor shall provide as-built drawings with the completion of the project.

The contractor shall notify the project manager 4 Calendar Days before the placement of any asphalt or concrete in order to provide adequate delivery truck gate access preparation, and materials testing coordination.

The contractor shall conform to the Basic SOW and all Rules and Regulations while present at Hill Air Force Base (HAFB) and its’ operated remote sites.

The contractor shall provide port-a-john on the site, as needed.

Protection of Government Property:

The contractor shall take necessary precautions to protect existing facilities and vegetation. Damage made by the contractor shall be repaired at the contractors’ expense and in accordance with the Basic SOW and this document.

The contractor shall maintain a clean, professional, and safe working environment at all times.

The contractor shall keep the construction haul routes clean and moist at all times.

All established lines and grades shall be established and approved by the PM prior to the placement of concrete/asphalt. The contractor shall survey and install grade control markers during the finish grading process in order to allow verification of proper drainage prior to the placement of surface course.

The contractor shall raise all utility access points and drainage system inlets to the proper grade allowing smooth profile for traffic. All utility access points and drainage system inlets shall have a concrete collar (4,000 PSI minimum compressive strength concrete) installed (12" minimum, 24" maximum from the exterior edge of the utility to the exterior edge of the collar) and 8" deep minimum.

The contractor shall restripe the project according the existing pavement markings as well as any changes indicated by the PM.

All irrigation system components affected by construction shall be replaced and tuned to proper working condition. New sprinkler heads exactly matching those existing prior to construction shall be placed adjacent to or within 1” from the new concrete or curb and gutter. The irrigation system shall be installed and placed according to the PM. All affected vegetation and sod shall be replaced to the state prior to construction except for areas where grade changes have taken place and the vegetation and irrigation system shall be adjusted accordingly and as directed by the PM.

Overview:

The road (6th Street) going from the west side of Southgate Avenue to the west side of

Southwest Gate (or Arsenal Road) has deteriorated to the point where a total rebuild in necessary. Some concrete curb and gutter, sidewalk, handicap ramps, and waterways as marked in the site plan and site visit need to be replaced.

The contractor shall establish a traffic control plan and phasing plan generating at a minimum:

access to all parking areas and roads both sides of 6th Street at all times. Traffic access to all parking lots not in the current phasing plan must be maintained at all times. Pedestrian access to all buildings must be maintained at all times. The contractor shall also establish a construction plan detailing procedures and methods for the construction.

The contractor shall demolish concrete curb and gutter, roll gutter, sidewalk, and asphalt outlined in the site plan and site visit. Excavated soil, concrete, and asphalt shall be hauled to the base Civil Engineering (CE) dump site. All materials will be weighed and load tickets will be saved and returned to the PM.

The asphalt shall be saw cut, excavated and separated from any concrete or soil. The asphalt shall be hauled to the base CE asphalt dump site and the concrete and soil to the landfill in coordination with the PM and CE Pavements Shop. The contractor shall then excavate the existing base course and subbase course. The contractor shall grade the existing sub-grade to a uniform profile and compact to 90-100% compaction. The contractor shall install stabilization/geo fabric under the entire road section approximately 60’ wide by 2200’ long and any other areas in need of stabilization.

The contractor shall then install 10” of granular borrow and 6” of untreated base course at 95-

100% compaction in 3" lifts. Prior to the placement of any asphalt surface course, the contractor shall proof roll the entire area with a loaded dump truck or water truck and overseen by the PM. Any areas showing deflection or pumping shall be excavated to a sufficient depth to remove all unstable material, stabilization fabric shall be installed as necessary and granular borrow shall be placed at 95-100% compaction and capped with 6” of base course placed at 95-100% compaction. The excavated material shall be hauled to the base landfill in coordination with the CE Pavements Shop. The final grade of the base course shall be uniform and allow for positive drainage in all areas prior to asphalt/concrete placement.

The concrete mix design shall meet at minimum a 4,000 psi 28 day compressive strength test and 650 psi flexural strength test per USGS and BFDS. The contractor shall place expansion joint where required by the UFGS and common construction practices to prevent cracking.

The concrete shall be broom finished. The concrete shall have stress relief joints installed as necessary to prevent cracking. All areas with existing handicap ramps marked for replacement and all areas where the sidewalk transitions to asphalt or buildings shall have handicap ramps installed according to American with Disabilities Act (ADA) regulations. The contractor shall place yellow, polymer composite panel, detectable warning surfaces at all handicap ramps, according to Utah Department of Transportation Manual of Specifications. As indicated by the attached project plan and the site visit, all areas requiring sidewalk placement shall be completed with the sidewalk maintaining a minimum thickness of 4” and a width matching the existing concrete and as indicated by the drawings. The sidewalk shall be installed according to the UFGS specifications. Expansion joints and relief joints shall be installed as necessary to prevent cracking. All areas requiring concrete placement shall have 6” of untreated base course installed at 95-100% compaction prior to the placement. Prior to the placement of any base course the contractor shall ensure that a stable subgrade exists; any areas with unstable subgrade shall be excavated and satisfactory material shall be placed at 95% compaction. All curb and gutter marked for replacement or installation shall be completed. The curb and gutter shall be 30” wide with a minimum of 6” of thickness under the flow line. The curb and gutter shall be installed so that 100% positive drainage is established to all areas. The 5’ wide roll gutter marked in the drawings shall be a minimum of 8” thick.

The contractor shall install concrete vault, spanning across the roadway, between the curb of the existing North and South steam vaults, as indicated in the drawings and site visit, with 1”-thick secured still plates on top of the vault. The vault shall be approximately 4’x5’ (WxD) with 8” thick walls. Walls should have one (1) longitudinal reinforcement bars, top and bottom, and traverse reinforcement bars at 24” on center (oc). Footing shall be 12” thick and 6’ wide, with four (4) longitudinal reinforcement bars, and traverse reinforcement bars at 24” on center (oc). All reinforcement bar size is #4.

After grading and compaction is completed, the contractor shall place 4" inches of compacted 3/4" PG 58-28, 50 Blows Marshall Designed Bituminous Surface Course at 92-96% of maximum Rice Density. The contractor shall ensure that the final surface grade of the entire asphalt surface course provides positive drainage (2% crown from centerline) and is at a minimum 4" deep. The asphalt shall be placed in 2 lifts with an emulsified tack coat applied prior to the placement of the second lift. The tack coat shall be sprayed at .18 gallons per square yard. The final surface grade of the asphalt shall be 1/4" to 1/2” above the gutter in all areas. The contractor shall crack seal all joints between the newly placed and existing asphalt. The contractor shall then install a 12” minimum concrete collar around all manholes, drain inlets, water valves, gas valves, and utility access points. The concrete collars shall be installed around all utility access points at the asphalt surface grade. The contractor shall ensure that all utility access points are raised to grade and collared. The contractor shall ensure that traffic will flow smoothly over the utility access points and snow removal equipment will not be caught by the utility access points.

The contractor shall ensure positive drainage in all areas. The contractor shall vacuum sweep the entire project area. The contractor shall provide a clean and professional looking job site prior to final inspection. The contractor shall have a pre-final 7 days before the final to fix any punch list items identified before final inspection walk through.

The contractor shall repaint all markings according to the existing pavement markings, except for changes identified by the PM. All affected sprinkler lines, heads, and boxes shall be replaced to proper working condition. All affected sod and vegetation shall be replaced to the state existing prior to construction except for areas where grade changes have occurred; these areas will require adjustment of the vegetation and irrigation systems in order to provide a smooth transition from sidewalk to vegetation. The contractor shall vacuum sweep the entire project area including all gutters. The contractor shall provide a clean and professional looking job site prior to final inspection. The contractor shall have 1 week to fix any punch list items identified in the final inspection walk through.

The contractor shall conform to common construction practices and all requirements of the basic contract, UFGS, UFC 1-200-01, IBC Codes, Section 1000, Base Facility Design Standards, and this statement of work. All government and non-governmental standards referenced in the contract shall be complied with.

Testing:

The contractor shall hire an independent consultant to test sub grade, finish grade, concrete, and asphalt. The contractor shall test for Density and Compaction. Concrete will be tested for slump (4" max).

Excavation:

Contractor shall saw cut and excavate all existing asphalt material as indicated on the drawings and site visit. The asphalt material will be hauled to the base asphalt dump site.

Contractor will then excavate base course and sub-base course materials encountered and haul them to the base landfill. The contractor shall excavate all concrete within project limits and haul it to the base concrete dump site. Contractor will not exceed weight limit restrictions as defined by UDOT while hauling excavated materials to their designated dump sites. The contractor will weigh every load in coordination with the CE Pavements Shop.

The contractor shall use caution and avoid damaging any government property.

All UFGS specifications regarding excavation shall be followed.

Compaction:

The Compaction requirements for the sub-grade and granular layers are expressed as a percent of maximum density. Compact the material to 95-100 percent of maximum density. Select materials and sub-grades in fills will be placed at no less than 95 percent of maximum density.

During construction, excavation and filling shall be performed in such a manner and sequence that will provide proper drainage at all times.

The contractor shall excavate and remove any and all soft or otherwise unsatisfactory material in the sub-grade, as well as any areas displaying the characteristics of pumping.

The contractor shall add stabilization mat and satisfactory material to the areas in question, as needed.

The grade and sub-grade shall be maintained at the proper moisture density relationship throughout placement.

Drainage is a critical factor in aggregate surface design, construction, and maintenance.

Provide adequate surface drainage to minimize moisture damage. Quick removal of surface water reduces absorption and ensures more consistent strength and reduced maintenance.

Portland Cement Concrete:

All established lines and grades shall be approved by the PM prior to the placement of concrete.

The concrete shall match the mix design submitted in the pre-construction process. The concrete mix design shall provide a minimum 4,000 PSI, 28 day compressive strength and 650 PSI, 90 day flexural strength.

During placement the concrete the full placement width shall be vibrated using vibrators capable of providing complete consolidation without segregation, as needed.

The contractor shall place joints in the sidewalk, curb and gutter, and roll gutter within project limits while concrete is still plastic with the proper tools instead of green cutting.

The contractor shall repair or replace any and all areas that crack during the construction process or warranty period.

The final grade of the concrete will not have any abrupt changes of more than 1/2” in 12’.

The contractor shall place all concrete providing positive drainage in all areas.

The contractor will conform to common construction practices, all requirements of the basic contract, UFGS, and this statement of work. All government and non-governmental standards referenced in the contract shall be complied with.

Polymer Composite Panel – Detectable Warning Surface shall be cast-in-place directly into the finished plastic concrete surface in accordance with manufacturer recommendations. The panels shall be yellow in color. The panels shall have an in-line truncated dome pattern that meets the requirements of UDOT GW Series Standard Drawings.

Asphalt Bituminous Surface Course:

The contractor shall install 4" of compacted asphalt, in 2 lifts, matching the mix design specifications submitted in the pre-construction process. The asphalt shall be 3/4" PG 58-28, 50 Blows Marshall Designed HMA.

The contractor shall spray an emulsified tack coat between the 2 lifts and on all existing asphalt joints and curb and gutter prior to the placement of asphaltic surface course. All edges will be saw cut. The contractor shall clean and sweep the edges prior to spraying the tack coat.

The asphalt shall be tested and must pass all tests according to UFGS 32-12-15.

The contractor shall not dump the asphalt on the ground prior to placement. The asphalt shall have one transfer from the hot plant to the truck and one transfer from the truck to the paver, except for a few instances with PM approved.

Compaction of the bituminous mixture shall be completed before the temperature of the mixture drops below 180 F.

The asphalt bituminous surface course will match the existing grade prior to construction except for areas where grade changes were determined necessary as indicated by the drawing to provide 100% drainage. The contractor shall not change any grades without approval from the PM. All seams and joints will not vary by more than 1/4” in 12’. The contractor should ensure that the final surface grade of the asphalt is exactly adjacent to the curb and other existing pavement and structures without gaps between asphalt and curb and that the asphalt is 1/4” to 1/2” above curb and other existing pavement surfaces.

Paving shall be completed in a smooth continuous motion with an uninterrupted forward paving operation utilizing the use of an approved automatic grade control system.

Automatic Grade Controls shall be utilized during the paving process meeting

UFGS 32-12-15.

Following the placement of asphaltic surface course the contractor will crack seal all asphalt joints adjacent to existing pavement.

The contractor shall conform to common construction practices, the basic contract, UFGS

Specifications, BFDS, and this Statement of Work. All Government and Non-Governmental standards referenced in the contract will be complied with.

Following the placement of the asphalt the contractor shall crack seal all utility access points, storm drains, and asphalt cold joints.

Final Requirements:

The contractor shall repaint all markings to match those existing prior to construction, except for any changes determined by the PM prior to striping. The paint and reflective beads shall be as follows:

o FS TT-P-1952 (Rev E) Paint, Traffic and Airfield Markings, Waterborne o FS TT-B-1325 (Rev D) Beads (Glass Spheres) Retro-Reflective (Metric) o The contractor may use paint and beads meeting the current UDOT specifications.

The contractor shall maintain a clean haul road at all times.

The contractor shall clean surrounding areas of the project to match the prior existing profile.

The contractor shall clean the construction area and all surrounding areas that have been disturbed by the contractors work.

The contractor shall provide a clean and professional looking job site prior to completion.

The contractor shall meet the PM approved schedule and shall complete any punch list items identified 7 days prior to final in the walk through.

Any changes/addendums, modifications, etc. to the original SOW must be approved by the Contract Officer; no other parties have approval authority.