6-Appendix A1 - Special Provisions.pdf

Item No 4941-0001 – Reset Post Mounted Sings, Type B

ITEM NO. 4941-0001

RESET POST MOUNTED SIGNS, TYPE B

In accordance with Section 941, modified as follows:

I. DESCRIPTION – This work is the removal of existing flat sheet signs, posts, anchors, and associated hardware and resetting the existing flat sheet signs as indicated with existing or new posts, anchors, and associated hardware as directed and to accommodate the construction of ADA compliant curb ramps.

II. MATERIALS

City of Harrisburg to provide flat sheet signs, breakaway steel posts, aluminum bolts, nuts and anti-theft hardware where the City desires new materials to be utilized. Otherwise, Contractor to reset existing signs. Coordinate with City Engineer on delivery of sign materials and disposal of existing signs.

Joel Seiders, PE City Engineer 1002 N. Seventh Street Harrisburg, PA 17102 717-255-3185 jseiders@harrisburgpa.gov

III. MEASUREMENT AND PAYMENT – Each

The quantities shown for resetting existing signs are based on the best information available at the time of bidding. The total bid quantity is not guaranteed and may vary as required to complete the work. Contractor to verify field conditions prior to performing the work. Reset all signs as necessary to accommodate construction of ADA-compliant curb ramps.

In accordance with Publication 408, Section 110 – Payment, Subsection 110.02(d) “Required Changes in the Scope of Work,” this provision shall not apply to this Item. Variations in the quantities or adjustments to the work do not constitute a significant change in the character of the work. Payment for this Item will be made at the original contract unit price, regardless of the final quantities required to complete the work.

END OF SECTION

mailto:jseiders@harrisburgpa.gov

Item No 4962-1005 – 4 Inch Yellow Waterborne Pavement Markings

ITEM NO. 4962-1005

4 INCH YELLOW WATERBORNE PAVEMENT MARKINGS

I. DESCRIPTION – This work consists of furnishing all labor, materials, equipment, and incidentals necessary to paint curbs at the Cumberland Street and North 15th Street intersection to visibly denote no-parking areas in accordance with 75 Pa.C.S. Section 3353, Parking Prohibitions in Specified Places. The work includes extending the painted curb a minimum of 20 feet beyond the limits of marked and unmarked crosswalks or a minimum of 15 feet of fire hydrants (whichever is greater) or as directed by the City’s representative. The curb painting is intended solely to supplement and reinforce the statutory parking restrictions.

II. SURFACE PREPARATION –

• The curb surface to be painted shall be clean, dry, and free of dirt, oil, loose material, vegetation, or other contaminants.

• Cleaning methods may include brushing, air blasting, or washing, provided the surface is allowed to dry prior to paint application.

III. APPLICATION –

• Paint shall be applied by brush, roller, or spray equipment in a neat and uniform manner.

• Apply paint as necessary to produce a solid, opaque, and uniform color without runs, drips, or thin spots.

• Painted surfaces shall be protected from traffic and pedestrian contact until sufficiently dry.

IV. MEASUREMENT AND PAYMENT – LF

Paint both faces of 8-inch curb. Each linear foot of curb painted shall receive a total of four coats of paint, consisting of two coats on each face.

END OF SECTION

Item No 9000-0001 – Design-Build Ramps - Design

ITEM NO. 9000-0001

DESIGN-BUILD RAMPS – DESIGN

I. DESCRIPTION – This work is the design and preparation of drawings and Technically Infeasible Forms (TIF) for the construction of ADA compliant curb ramps as required to provide pedestrian access.

III. CONSTRUCTION

a) General

Prepare and submit Design Drawings for each ramp detailing the proposed curb ramp(s) in accordance with the City of Harrisburg’s specifications.

Design will be paid for each ramp designed.

Detectable Warning Surfaces must be provided at the junction between the Pedestrian Access Route (PAR) and commercial driveways provided with traffic control devices or driveways that are otherwise allowed to operate like public streets.

Provide design and drawings in English units.

Contractor will provide a Design Activity Schedule.

b) Additional Designer Qualifications

For this Design Activity, résumés must demonstrate experience and expertise, during the last 5 years, with Americans with Disabilities Act (ADA) requirements as contained in Code of Federal Regulations; 28 CFR Part 36 and other applicable design criteria, standards, guidelines and construction specifications.

c) Design Specifications

Provide a Design Drawing as specified in Section 105.02(c) and in accordance with Part II (f) Design Requirements of this Special Provision.

Have the design completed by a Professional Engineer licensed in the State. Have all surveys completed by a Professional Land Surveyor licensed in the State.

Provide the Design Engineer’s P.E. seal, the date signed, and business name and address on the first sheet of all computations, including computations for partial submissions. Provide the appropriate seal and signature on plan sheets in accordance with the PennDOT Design Manuals. Also, provide the Design Engineer's P.E. seal, signature, and date signed on the first sheet of all computations, including computations for partial plans submissions.

Provide all Professional Engineer’s seals in accordance with Pa. Code § 37.59.

Experimental or demonstration-type design concepts, products, structures, or elements not pre-approved for general usage at the time of bid, will not be allowed.

d) Utilities

Design the curb ramps to accommodate the existing utility facilities within the project. Minor utility adjustments such as, but not limited to, minor vertical adjustments of manholes, junction boxes, and valve boxes, etc. may be required.

e) Signalized Intersections

For ramps located at signalized intersections, revise the existing traffic signal permit plans including, but not limited to, stop bar locations, crosswalks, pedestrian push button locations, loop detectors, sensors, clearance intervals and installation/ removal of pedestrian signs as required to accommodate the new ramps and comply with the Design Requirements in subsection (f) below. Coordinate with the appropriate municipalities for the revisions to the traffic signal permit plans and obtain concurrences in writing. Contact the District Traffic Engineer for prints of the existing traffic signal permit plans. Notify the District Traffic Unit if changes to the intersection potentially warrant signal-timing adjustments. Submit the revised traffic signal permit plans to the District Traffic Engineer for approval. Upon approval, submit electronic files of the traffic signal permit plans to the District Traffic Engineer. For files not provided to the Contractor in electronic format, revised image files are acceptable.

Ensure that pedestrian visibility is not compromised by the new curb ramp locations. Ensure that distances to the signal head from the stop bar are within the guidelines established in Publication 149 - Traffic Signal Designer Handbook.

f) Design Requirements

Design all curb ramps in accordance with the Americans with Disabilities Act: Policy and the Design Guidance contained in Publication 13M, Design Manual Part 2, Highway Design (DM 2). With the following requirements specific to this project:

• Ramp widths shall be a minimum of 5’-0” wide.

• Curb ramps shall be designed to provide an accessible entrance to businesses and residents adjacent to the sidewalk reconstruction.

• Rolled flares are to be used in lieu of cheekwalls.

Provide 11 inch x 17 inch Design Drawings at a scale of 1 inch per 10 feet Horizontal.

Provide a title block in the lower right-hand corner, including the Project's name, date of submittal, a block for date of re-submittal(s), and the appropriate sheet number(s).

Provide positive drainage for each ramp.

On the drawings, indicate the:

• direction of magnetic North;

• type of curb ramp proposed and the location of each ramp (as applicable, submit a

“Technical Infeasible Form (TIF)” and submit to the City Engineer for committee approval

– the Assistant District Executive - Design will grant final approval);

• Indicate on drawing that TIF was submitted and its submittal date;

• existing and proposed vertical elevations of the finished grade of roadway at the point where the center of the proposed ramp intersects the edge of roadway (designated to the nearest 0.01 foot);

• existing longitudinal and cross slopes of the roadway directly in front of and at the center of the proposed ramp (designated to the nearest 0.10 %);

• proposed running and cross slope percent of the ramp (designated to the nearest 0.10 %);

• proposed running and cross slope percent of the sidewalk transitions to the ramp and/or landing (designated to the nearest 0.10 %);

• limits of removal of existing sidewalk, curb and curb ramp(s) (designated to the nearest

0.10 foot), terminate limits of work at existing tooled expansion/ contraction joints, curbs may be saw cut;

• proposed length and width of the curb ramp;

• proposed horizontal location and horizontal measurements of the landing area;

• proposed slopes of the landing area (designated to the nearest 0.10 %);

• proposed slopes of flares (designated to the nearest 0.10 %);

• proposed horizontal measurement(s) of flares (designated to the nearest 0.10 foot);

• proposed horizontal placement of Detectable Warning Surface (DWS);

• horizontal and vertical relationships to the pedestrian push buttons (designated to the nearest 0.10 foot);

• horizontal relationship of the crosswalk and stop bars (designated to the nearest 0.10 foot);

• utility features within the curb ramp construction area;

• existing and proposed right-of-way and construction easements (including the administrator of the right-of-way ex. state, municipal or dedicated etc); and

• property lines and property owner of record on drawings where there is insufficient right-of-way for the proposed design.

All minimum and maximum dimensions contained on the Standard Drawing RC-67M are absolute. Construction tolerances do not apply when a dimension is shown as minimum or maximum.

Designs utilizing cheek-walls and vertical drops will require City of Harrisburg’s approval.

Designs must include pedestrian barriers, for approval by the City of Harrisburg, if vertical drops are used. Otherwise, grade non-walk areas in accordance with Standard Drawing RC- 67M.

All work must be performed within the Legal Right-of-Way unless written permission is obtained from the City of Harrisburg.

Complete the PennDOT forms titled "Technically Infeasible Form" (TIF), when applicable, and submit to the City Engineer for approval prior to the acceptance of the drawings.

g) Submittal Review, Approval, and Distribution

Submit at a minimum, two hard copies and one electronic copy of all drawings, forms, and related drawings. Submit one photograph depicting each location. Each submission package must be sealed by a Professional Engineer licensed in the State.

Make all required submissions to the City Engineer.

Joel Seiders, PE City Engineer 1002 N. Seventh Street Harrisburg, PA 17102 717-255-3185 jseiders@harrisburgpa.gov

Review Times

Review times are as follows:

• Initial Submission Review Time - 15 Working Days

• Subsequent Submission Review Time – 10 Working Days

Additional contract time or price adjustment to any contract items will not be considered due to failure to obtain approvals within the specified review times resulting from incomplete or non-conforming submissions. Working days are weekdays, Monday through Friday, excluding official Holidays.

IV. MEASUREMENT AND PAYMENT – Each. One quadrant.

(a) Payment Schedule. The City will pay 50% upon approval of each quadrant design and 50% when all physical work on each quadrant has been satisfactorily completed and the PennDOT Form CS-4401 has been completed.

(b) If Contractor elects to construct Design-Build Ramp(s) without sealed plan(s) in accordance with this Special Provision, contractor will not be entitled to compensation under this item, but will receive compensation for completing the physical work after Form CS-4401 has been completed and provided the construction is in accordance with PennDOT RC-72M and the design requirements referenced herein.

END OF SECTION ITEM NO. 9000-0001

Item No 9000-0002 – Design-Build Ramps - Construction

Item No. 9000-0002

DESIGN-BUILD RAMPS – CONSTRUCTION

I. DESCRIPTION – This work is the construction of concrete curb ramps, cement concrete sidewalks, and restoration of the adjacent area as indicated on the approved curb ramp design drawings and applicable standards. The work includes utility coordination and preparation of the PENNDOT form CS-4401.

II. MATERIAL – As per Publication 408 and as indicated and specified on the approved Design

Curb Ramp Drawings.

III. CONSTRUCTION

In accordance with applicable sections of Publication 408, the special provisions of the contract and any additional requirements specified herein. Construct curb ramps and sidewalks in accordance with Section 630 and Section 676, and as indicated, except as follows:

Revise Section 630.3 (g) as follows:

Excavate the existing pavement up to a maximum of TWO feet in front of the existing curb to neat (sawcut) lines. Maintain positive drainage.

The area in Front of the curb will be backfilled up to the depth of the existing pavement structure with No.2A Stone, backfill in lifts not to exceed 6 inches and compact by means of mechanical tampers or rollers not to exceed 8 tons. Bituminous material will be placed for the remainder of the excavated area matching the existing Pavement Structure. After paving seal the paved area with PG 64S-22. If concrete is encountered as part of the Pavement Structure Asphalt Base can be used in place of the existing concrete.

Revise Section 676.3 Construction by adding the following:

Construct plain cement concrete curb ramps in accordance with the Design Curb Ramp Drawings and as shown on the PennDOT Standard Drawings RC – 67M and meeting the requirements of DM-2, Chapter 6.

On Standard Drawings RC – 67M, the details depicted are most appropriate for New Construction.

Alterations to existing facilities must meet the requirements to the maximum extent feasible. All field design changes must be submitted to the Municipality for approval.

Work on curb ramps cannot commence until the drawings for the quadrant are submitted and approved. A quadrant is defined as: all of the curb ramps and ADA features associated with a particular corner, median crossing, island, commercial driveway or mid-block crossing. Each corner, median crossing, island, commercial driveway (both sides) and mid-block crossing (both sides) will be considered to be a separate quadrant. A “T” intersection will constitute a maximum of three quadrants.

All work must be performed within the Legal Right-of-Way unless written permission is obtained from the Municipality. If an Authorization to Enter (waiver of Claim) is required, it must be completed by the Municipality and signed by the property owner prior to work.

Minor utility adjustments such as, but not limited to, minor vertical adjustments of manholes, junction boxes, and valve boxes, etc. may be required. Coordinate with all necessary utility companies for adjustments of their facilities for construction of the curb ramp.

All minimum and maximum dimensions contained on the Standard Drawings RC – 67M are absolute.

Construction tolerances do not apply when a dimension is shown as minimum or maximum. Check all slopes with a four-foot Smart Level for compliance. An acceptance certificate will not be issued if any newly constructed curb ramps do not fully comply with the approved curb ramp design drawings and applicable standards.

All curb ramps will include yellow Detectable Warning Surfaces.

Remove all existing concrete and curb to neat lines.

Eradicate and install pavement markings as required by the Curb Ramp Design Drawings.

Grade areas behind the sidewalk that are within vegetation to match the grade of the new sidewalk and existing topography so the area will drain away from the pedestrian facility. Place topsoil as necessary and seed the area with Seeding and Soil Supplements, Formula B as per Section 804.2.

If a new curb ramp is being placed at a quadrant of an intersection where there is an existing curb ramp but, not at the same location of the placement of the new, the contractor will remove the existing depressed curb and replace with necessary curb to tie into the new curb cut ramp. The contractor will also remove the existing curb ramp and replace it with the appropriate sidewalk or topsoil at a grade to meet the new curb ramp facility.

Any temporary construction activities required for alterations that affect existing pedestrian circulation paths will require the provision of a safe, alternate, and accessible pedestrian route around the construction activities. The alternate route must comply with all applicable design guidelines to the maximum extent feasible so that the usability of the accessible route is maintained. The alternate route will be kept in place through the duration of the construction activity.

Following construction of each curb ramp, the Contractor will complete PENNDOT form CS-4401 to confirm that all constructed curb ramps comply with the referenced standards. Contractor is to provide the City with three (3) business days advance notice of when each ramps will be evaluated for completion of the CS-4401 so that a City representative can participate/witness the evaluation. Curb ramps that are found to be non-compliant as a result of completing the inspection form will be reconstructed at the sole cost of the contractor unless the curb ramp detail in question had been authorized to be constructed through the use of an approved Technically Infeasible Form.

IV. MEASUREMENT AND PAYMENT –

(a) Design-Build Ramp-Construction. Each. One quadrant. Paid after PennDOT Form CS-4401 has been completed and provided to City provided the construction is in accordance with PennDOT RC-72M and the design requirements referenced in contract documents.

(b) Material Used Basis.

a. Class 1 Excavation. Item 0203-0001

b. Superpave Asphalt Mixture Design, Base Course. Item 0313-0422

c. Cement Concrete Sidewalk. Item 0676-0001

d. Plain Cement Concrete Curb. Item 0630-0045

e. Detectable Warning Surface. Item 0695-0004

f. Topsoil. Item 0802-0001

g. Seeding and Soil Supplements. Item 0804-0025

h. Construction Surveying, Type C. Item 0686-0040

i. Design Build Ramps-Design. Each. Item 9000-0001

END OF SECTION ITEM NO. 9000-0002

Item No 9000-0003 – Speed Slot

ITEM NO. 9000-0003

SPEED SLOT

I. DESCRIPTION – This work consists of constructing asphalt Speed Slots in existing pavement at the locations shown on the plans, in accordance with these Special Provisions, the applicable provisions of PennDOT Publication 408, the latest edition of the MUTCD, and the approved Speed Slot Detail.

II. MATERIAL –

• Asphalt - Provide superpave asphalt mixture design meeting the requirements of Publication 408, Surface Course, unless otherwise directed by the City Engineer.

• Tack Coat - Provide asphalt emulsion meeting the requirements of Publication 408, Section 460.

• Pavement Markings - Provide white pavement marking material meeting the requirements of Publication 408, Section 962.

• Signs - Provide signs and sign supports meeting the requirements of Publication 408, Sections 901 and 902, and the MUTCD.

III. CONSTRUCTION –

• General - Construct Speed Slots in existing asphalt pavement at the locations and dimensions shown on the plans and standard details. Ensure all work conforms to the approved Speed Slot Detail.

• Layout - Center the Speed Slot within the travel lane as shown on the plans. Maintain a maximum spacing from the face of curb, ensure slot spacing, overall width, and configuration conform to the standard detail. Do not place raised asphalt pavement surfaces in marked or unmarked crosswalks, over manholes, water or sewer valves or other irregularities in the roadway. Notify the City representative if the raised Speed Slot cannot be placed.

Obtain concurrence on the location from the City representative prior to installation.

• Saw Cutting and Milling - Saw cut the pavement to neat lines at the limits shown on the plans. Perform milling to achieve a 2-inch taper at the leading and trailing edges at a slope of 1 Vertical to 4 Horizontal (1V:4H). Mill to the depth necessary to achieve a finished Speed Slot height of approximately 3 inches ± ½ inch.

• Surface Preparation - Clean all saw-cut and milled surfaces of dust, debris, and loose material. Apply tack coat to all exposed vertical and horizontal surfaces prior to asphalt placement, in accordance with Section 460.

• Asphalt Placement - Place superpave asphalt in lifts sufficient to achieve the required profile and compaction.

Compact asphalt in accordance with the applicable requirements of Publication 408.

Ensure the finished Speed Slot has a flat top section as shown on the detail, smooth transitions at tapers, and no cracking, segregation, or surface irregularities

Item No 9000-0003 – Speed Slot

• Pavement Markings - Install 12-inch-wide white pavement markings in advance of and across each Speed Slot as shown on the plans. Install markings in accordance with Section 962 after the asphalt surface has cooled and cured.

• Signing - Install W17-1 (Speed Hump) warning signs in advance of each Speed Slot location.

Install signs in accordance with the latest edition of the MUTCD and Publication 408.

IV. MEASUREMENT AND PAYMENT – Each.

Includes saw cutting, removal of the existing asphalt surface, milling, surface preparation, tack coat application, asphalt placement, compaction, pavement markings, signing, traffic control, and all labor, materials, equipment, and incidentals necessary to install a speed slot in each travel direction as specified. Also incidental to this item is the removal of all existing speed slots and associated signs within the project limits. Removed signs shall be salvaged and delivered to the City of Harrisburg at 1002 N. 7th Street, Harrisburg. No separate payment will be made for this work.

END OF SECTION ITEM NO. 9000-0003