Z--BRVB - Entry Courtyard Improvements

Div. 1 V. 2023-11-11 Page | 1 BROWN V. BOARD OF EDUCATION NATIONAL HISTORIC PARK 1515 SE Monroe Street, Topeka, KS 66612 ENTRY COURTYARD ABA PAVING AND DRAINAGE IMPROVEMENTS PMIS 251211 Drawing No: 80010 PROJECT SPECIFICATIONS NATIONAL PARK SERVICE 2026-04-10 -- 1 of 47 -- Div. 1 V. 2023-11-11 Page | 2 TABLE OF CONTENTS DIVISION 01 - GENERAL REQUIREMENTS Section 01 10 00 Division 01 Short Form General Requirements DIVISION 05 METALS Section 05 52 13 Pipe Railings DIVISION 31 EARTHWORK Section 31 10 00 Site Clearing Section 31 20 00 Earth Moving DIVISION 32 EXTERIOR IMPROVEMENTS Section 32 12 13 Concrete Paving APPENDIX A – PHOTOS Existing Handrail for Reference -- 2 of 47 -- Div. 1 V. 2023-11-11 Page | 3 SECTION 01 10 00 DIVISION 1 SHORT FORM GENERAL REQUIREMENTS PART 1 – GENERAL ITEM 1 - DESCRIPTION OF WORK 1.1 Background: The Monroe Elementary School entry courtyard was enhanced back in 2002, with paving improvements made to the entry stairs, sloped sidewalk ramps, and storm water conveyance by rerouting the roof drains to connect to the City of Topeka's public storm sewer network. Over the past two decades, the paving has deteriorated throughout the courtyard and on the entry stairs. Freeze/thaw cycles, coupled with ground settling has led to existing paving areas not being ABA compliant for both longitudinal and cross slopes in various areas. There are two ABA curb ramps within city right-of-way connecting to Monroe Street that are too steep and noncompliant. Existing large shade tree roots within the turf grass lawn areas adjacent to Monroe Street have pushed up the existing ground, including the city sidewalk, causing storm water to not drain freely towards the street during rain events. Storm water then pools up at a low point located at the southeast corner of the entry courtyard abutting the city’s sidewalk, causing the paving to be inundated with water on both NPS and City of Topeka property. This project will improve the paving and drainage components of the courtyard while maintaining the same historical configuration that currently exists onsite. 1.2 Work Covered by the Contract Documents: A. Project Location: Brown v. Board of Education National Historic Park Monroe Elementary School - Entry Courtyard 1515 SE Monroe Street, Topeka, KS 66612 39° 02’ 17” N, 95° 40’ 35” W. See plan cover sheet within the construction drawings for project location map. B. Work consists of improvements to be made within the City of Topeka Right-of-Way (ROW) as well as on NPS property. New entry courtyard concrete paving and stairs in the same layout as the existing configuration, maintaining the historical jointing patterns that currently exist, but with reconfigured longitudinal and cross slopes that are ABA compliant. Existing signs will be relocated to concrete viewing areas on NPS property, rather than being within the city’s ROW. The site will be graded so the existing low point where storm water currently pools will be relocated to the turf grass lawn area with drainage directed into an aggregate storage chamber. During higher intensity rain fall events, storm water that ponds in the turf grass lawn area will be graded to allow for overflow discharge onto the ROW sidewalk and be conveyed to Monroe St by means of a new concrete curb ramp that accesses the existing pedestrian loading zone, ultimately draining to the city’s existing storm sewer network. The project includes removal of approximately 7,362 SF of existing concrete courtyard and stair pavement, 8 LF of existing stair handrails, removing/salvaging/and relocating 7 existing signs, removing/salvaging/and relocating 1 existing ABA door-button pedestal, -- 3 of 47 -- Div. 1 V. 2023-11-11 Page | 4 removing/salvaging/and reinstalling 4 existing door stops, installing/removing approximately 276 LF of tree protection fencing, and installing/removing approximately 266 LF of straw wattles. Improvements include approximately 1,845 SF of 5" depth, fiber mesh, reinforced pc concrete pavement adjacent to existing trees, 5,497 SF of 5” depth, fiber mesh, pc concrete pavement, 153 SF of 6” depth, fiber mesh, #6 6x6 wire mesh pc concrete ABA curb ramps, 16’ wide pc concrete stairs with (4) - 6 ¼” risers and (3) - 13 ½” treads, 816 SY of 5” depth AB-3 aggregate subbase under pavement, 11 LF of ornamental stair handrails, 23 LF of combined pc concrete curb and gutter (type 1), 39 SF of ABA detectable warning panels with truncated domes, 50 CY of 4” depth top soil stripped and respread, 60 CY of excavation and haul-off, 3 CY of No.57 aggregate with filter fabric for storm water storage chamber, 4,200 SF of turf grass lawn sod, and traffic control. C. All work will be performed under a single contract. D. Period of performance: Work shall be completed within 75 calendar days from the issuance of the Notice to Proceed. a. Clarification: The Notice to Proceed will be issued with a period of performance that is all inclusive of supply lead times, material deliveries, decommissioning, installation, anticipated average weather days for location, final commissioning, and acceptance of completed work. The contractor will be expected to provide a project schedule with adequate critical path details to ensure all work is completed within the stated calendar days from issuance of the Notice to Proceed. If weather impacts project beyond typical average weather patterns, contractor shall provide documentation in request for additional days. 1.3 Existing Condition Protections: A. Preservation of Historical and Archeological Fabric: i. The Historic and Archeological Data Preservation Act of 1974 provides for the preservation of historical and archeological data that might otherwise be lost as the result of alterations to the terrain caused by a federal or federally licensed activity or program. ii. IF, in connection with operations under this contract, the Contractor, subcontractors, or employees of any of them, discovers, encounters or becomes aware of any p…