ESBD_572954_1793634819324_RFP 148B SOW Paving Services - MSA.docx

STATEMENT OF WORK (SOW) FOR CONSTRUCTION SERVICES

Description of Services and Deliverables:

Contractor shall furnish all labor, supervision, materials, equipment, tools, transportation, mobilization, traffic control, testing, permits, disposal and incidentals necessary to perform the following categories of work in a first-class, workmanlike manner. Categories are descriptive, not limiting.

Pavement Assessment and Planning Support Pavement condition surveys, distress mapping, PCI-type scoring, and inventory of paved assets by site.

· Coring, subgrade investigation, proof rolling, and coordination with LCRA’s geotechnical or testing consultants.

· Development of repair alternatives with rough-order-of-magnitude pricing and estimated service life.

· Support for multi-year pavement management planning, prioritization and capital budgeting.

· Site walks, field measurement, quantity take-offs, and pre-work photo documentation.

New Asphalt Construction

· Clearing, grubbing, demolition and removal of existing surfaces.

· Excavation, embankment, subgrade preparation, moisture conditioning, compaction and proof rolling.

· Subgrade stabilization (lime, cement, fly ash) and geotextile or geogrid installation.

· Flexible base placement (crushed limestone, recycled crushed concrete), fine grading and compaction.

· Prime coat, tack coat, and hot-mix asphaltic concrete (HMAC) placement in specified lifts and mix designs.

· Construction of new parking lots, drive aisles, access roads, turnarounds, pads and shoulders.

Overlays, Milling and Resurfacing

· Cold milling / planing to specified depth and cross-slope, including edge milling and butt joints at tie-ins.

· Mill-and-overlay and structural overlays with leveling courses as required.

· Surface preparation, cleaning, tack application and joint construction.

· Adjustment of manholes, valve boxes, cleanouts, grates, ground rods and other appurtenances to finished grade.

· Feathering, transitions and matching at gutters, aprons, thresholds and existing pavement.

Reconstruction and Rehabilitation

· Full-depth pavement reconstruction, including removal and replacement of base and subgrade.

· Full-depth reclamation (FDR) and cold in-place recycling where suitable.

· Pulverization and re-stabilization of failed sections.

· Correction of grade, drainage, ponding and cross-slope deficiencies.

Pavement Repair and Patching

· Full-depth and partial-depth saw-cut patching of potholes, alligator cracking, rutting, shoving and base failures.

· Skin patching, leveling and edge repair; utility cut restoration.

· Cold-patch and temporary repairs for interim or emergency conditions.

· Repair of settlement and failures at trench crossings, culverts and structure interfaces.

Preventive Maintenance and Surface Treatments

· Crack routing, cleaning and hot-pour or cold-applied crack sealing.

· Seal coat / chip seal, fog seal, scrub seal and sand seal.

· Slurry seal and micro-surfacing.

· Asphalt emulsion and coal-tar-free sealcoating of parking areas.

· Sweeping, power washing, vegetation control at pavement edges and joints, and debris removal.

Concrete Paving and Flatwork

· Portland cement concrete (PCC) paving for drives, heavy-duty pads, dumpster and transformer pads, aprons and truck turnarounds.

· Curb, gutter, curb-and-gutter, valley gutters, ribbon curb and wheel stops.

· Sidewalks, shared-use paths, thresholds, stoops, steps and handrails.

· ADA/TAS-compliant curb ramps, detectable warning surfaces, accessible parking, and accessible route corrections.

· Joint sealing, joint repair, slab replacement, spall repair, and concrete grinding or slab-jacking to correct trip hazards.

· Repairs to sidewalks, pavers, retaining walls and other concrete structures.

Aggregate, Gravel and Unpaved Surfaces

· Construction, regrading, reshaping and re-crowning of aggregate access roads and yards.

· Placement of flexible base, crushed rock, and all-weather surfacing for transmission line and substation access.

· Grading, ditching, culvert installation and cleaning to restore drainage and prevent washout.

· Dust suppression, soil stabilization, and erosion control on unpaved surfaces.

· Low-water crossings, stabilized construction entrances, and temporary haul roads.

Substation Yard Surfacing

· Placement, replenishment and regrading of crushed-rock surfacing inside substation fence lines to specified depth and resistivity requirements.

· Removal of contaminated or degraded rock and vegetation-fouled surfacing; disposal in accordance with LCRA direction.

· Work performed with care to protect ground grid, counterpoise, conduit, cable trench, oil containment liners and buried facilities — see Section 4.2.

· Gate approaches, transformer haul paths, crane pads and maintenance pull-off areas.

Drainage and Site Appurtenances

· Storm inlets, area drains, trench drains, culverts, headwalls, flumes and rundowns associated with paved areas.

· Regrading of swales and ditches to eliminate ponding on or adjacent to pavement.

· Adjustment, replacement or reconstruction of utility structures within the work limits.

Pavement Markings, Signage and Site Safety Features

· Layout and installation of paint, thermoplastic or preformed markings: stalls, accessible stalls and access aisles, fire lanes, crosswalks, stop bars, arrows, legends and hatching.

· Removal and obliteration of obsolete markings by grinding, waterblasting or approved methods.

· Signage, signposts, bollards, wheel stops, speed humps, guardrail, cable barrier and delineators associated with paved areas.

· Striping and wayfinding for park entrances, boat ramps, trailheads and campground loops.

Traffic Control and Temporary Facilities

· Traffic control plans, devices, flagging and pedestrian routing in accordance with the Texas Manual on Uniform Traffic Control Devices (TMUTCD).

· Phased construction and temporary access to maintain plant, substation, dam and park operations and emergency vehicle access at all times.

· Temporary parking, detours, barricades, and coordination with local jurisdictions for lane or street closures.

Emergency and Unscheduled Response

· Twenty-four (24) hour, seven (7) day emergency call-out capability with a designated single point of contact and defined response times.

· Priority response for flood events, storm damage, dam and floodgate operations, generation outages, and transmission emergencies.

· Temporary access road construction and repair to restore vehicle access to critical infrastructure.

· Rapid repair of hazardous pavement conditions, sinkholes, washouts and trip hazards.

· Contractor shall state guaranteed response times (e.g., telephone response within [24] hour(s); crew on site within [24] hours) in its rate schedule.

Planned and Outage-Driven Work

· Work sequenced around scheduled generation outages, substation clearances, dam maintenance windows and park seasonal closures.

· Compressed schedule and shift work (nights, weekends, holidays) where operational continuity requires it.

· Coordination with concurrent contractors, LCRA crews and third-party utilities on shared sites.

· Contractor shall state guaranteed response times (e.g., telephone response within [24] hour(s); email within [24] hours) in its rate schedule.

Related and Incidental Work

· Demolition, hauling, recycling and lawful disposal of removed materials.

· Site restoration: topsoil, seeding, sod, irrigation repair and landscape restoration disturbed by the work.

· Protection and restoration of fencing, gates, lighting, conduit, cathodic protection and security systems.

· Surveying, staking and as-built documentation.

Unless an SOW specifies otherwise, work shall conform to the most current editions of the following, in order of precedence: (1) the statement of work and project drawings/specifications; (2) LCRA standards and specifications; (3) the standards listed below; (4) manufacturer’s written instructions.

1. TxDOT Standard Specifications for Construction and Maintenance of Highways, Streets, and Bridges, and applicable TxDOT Standard and Special Specifications.

1. City of Austin Standard Specifications and Standard Products List, and Travis County specifications, for sites within those jurisdictions.

1. Texas Manual on Uniform Traffic Control Devices (TMUTCD).

1. 2010 ADA Standards for Accessible Design and the Texas Accessibility Standards (TAS), including TDLR registration and inspection where required by project value.

1. ASTM, AASHTO, ACI 318/330, PCA and Asphalt Institute standards for materials, mix design, placement and testing.

1. Applicable NFPA requirements for fire lane geometry, marking and access.

Materials shall be new, from approved sources, and supported by mix designs, certifications and test reports submitted for LCRA review prior to placement. Recycled and sustainable materials (RAP, RAS, recycled crushed concrete, warm-mix) may be proposed and are subject to LCRA approval and specification limits.

Geographic Area - All LCRA-owned, leased, operated or managed property.

EXHIBIT A - COVERAGE MAP

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