Attachment_1_-_SOW_for_Project_19001_with_Technical_Exhibits.pdf

Statement of Work (SOW)

DPW - 19001 Construct Sidewalks along Pvt. Bolio Road

Project Description: The project purpose is to construct a pedestrian sidewalk along Pvt. Bolio Road on Presidio of Monterey, CA, from Hachiya Way to B-358, to install an entrance sidewalk from the fence line at Pvt. Bolio Gate to the visitors’ center, and install a concrete pad with supports for a historic cannon.

1. General:

1.1 Description of Services: The Contractor shall provide all personnel, equipment, supplies, facilities, transportation, tools, materials, supervision, and other items necessary to install a precast concrete boardwalk walkway along Private Bolio Road, an at grade concrete sidewalk from Army St. to the cottages, a concrete entrance sidewalk near the Private Bolio Gate, and a concrete support pad underneath the cannon. This includes, but is not limited to:

excavation, grading, support systems, structure, accessible curb ramps, catch basins, pipe, drainage rock, and crosswalk paint as defined in this SOW. The contractor shall perform to the standards in this contract and all work shall be in compliance with the current editions of all applicable codes and standards.

1.2 Background: Pvt. Bolio Road is the road from the main gate used to access the US Army Garrison Presidio of Monterey. Pedestrian traffic in the area is significant and there is not a safe means for them to transit the installation on foot without going several blocks out of the way.

1.3 Objectives: The primary objective of this requirement is to provide the installation with a safe area for the movement of pedestrians.

2. Scope of Work (SOW):

2.1 The contractor shall provide labor, material, equipment, transportation, and project management to execute and complete the subject project. Work requirements include, but are not limited to, the following:

General

a. Contractor shall be responsible to provide necessary geotechnical engineering and survey data, and coordinate and provide design and engineering services for transition area retaining wall (if required), precast concrete boardwalk, and cast-in-place concrete sections.

b. Field verify all measurements.

c. Provide geotechnical data to design engineers to design foundations.

d. Provide survey data of alignment and elevation to design engineers.

e. Properly dispose of any or all excess fill and other construction debris off post.

f. Minimize the amount of excavation taking place on this project.

g. All areas where soil disturbance occurs shall be restored to its original condition or better.

Hydroseed mixtures shall be approved by DPW Natural Resource Manager prior to application.

h. A professional archaeologist (per qualifications at 36 CFR 61) and consultant from the Ohlone/Costanoan-Esselen Nation shall monitor ground disturbance associated with this project.

i. Pvt. Bolio Entrance Gate and concrete stairway shall remain open and accessible to vehicles and pedestrians respectively at all times.

Demolition

j. Cleanly sawcut and remove a portion of existing curb 18” wide at two locations (shown in Technical Exhibit 1) to create an opening for stormwater to enter. Coordinate with boardwalk designer so that openings are located between footings, not at footing locations. Curb shall be removed at or below the elevation of the gutter so as to allow water to flow to gulley.

k. Protect existing concrete stair. Modify existing railing at stair to connect to new railing on boardwalk.

l. Demolish curb adjacent to concrete stair to install new ABA-compliant curb ramp as described in paragraph 2.1.p.

m. Demolish the drainage swale as shown in Technical Exhibit 7. Plug inlet to storm drain from swale prior to placement of sidewalk. Protect existing manhole and curb inlet structure. Relocate sign to grass adjacent to new sidewalk.

n. Modify the fence where the swing gate is east of the Pvt. Bolio guard house. Final realignment and new pedestrian access shall be approved by DPW prior to demolition.

Contiguous perimeter shall be maintained at all times.

New Work - Boardwalk

o. Place rock or other permanent erosion control measures at two new curb openings under the boardwalk. Surface of rock layer shall be lower than gutter level to allow water to flow into the gulley. Erosion control shall be minimum of 36” wide and 48” long. Rock layer shall be minimum of 8” deep.

p. Construct concrete ABA-compliant curb ramp adjacent to concrete stairs. Use Caltrans Standard Design for Curb Ramps Case G, using existing concrete stair landing as retaining curb. Ramp shall have railing on gulley side.

q. Construct ABA-compliant curb ramp on North side of Pvt. Bolio Road adjacent to existing stamped concrete sidewalk and in alignment with curb ramp installed in paragraph 2.1.p. Use Caltrans standard detail Case G, with retaining curb on east side.

r. Paint “ladder type” crosswalk at Hachiya Way from the concrete stairway wide enough to incorporate the new ABA-compliant curb ramps. Square off crosswalk to road. Relocate stop sign and repaint stop bar and other markings on the westbound side of Pvt. Bolio as required to accommodate increased crosswalk width. All pavement markings shall comply with latest edition of MUTCD.

s. If boardwalk elevation will not match elevation of ABA ramp and a transition area is required, a registered professional engineer shall design, and the contractor construct, a cast-in-place concrete section that will provide for an even transition between the elevation and width of the new concrete curb ramp adjacent to the existing concrete stairway (paragraph 2.1.p) and the elevation and width of the new boardwalk. This ramp shall be ABA compliant. Signed and sealed design drawings shall be submitted for reference prior to construction.

t. A registered professional engineer shall design a precast concrete boardwalk structure and foundation piers from the concrete stairway to Army Street. The structure including foundations shall be designed by and drawings shall be signed and sealed by a registered professional engineer. Design drawings shall be submitted for reference prior to construction. Boardwalk shall be designed for a minimum 90 PSF pedestrian and 5000 lb.

vehicle live loads. Plank surface shall be non-skid integral to the plank and not applied after casting. Elevation of boardwalk shall be as close to the existing soil surface as possible to avoid creation of animal habitat.

u. Construct complete new boardwalk structure. Width, profile slope, and elevation shall be ABA compliant. Boardwalk shall meet the performance specifications as detailed in Technical Exhibit 9. Construction shall take place from the already-installed portion of the boardwalk as much as possible with designer approval. When not done from boardwalk, construction shall take place from the road to avoid ground disturbance in the gulley. Approved traffic control measures shall be put in place when partial road closures take place. Ten days advance notice of road closures is required. Flaggers must be in place at all times the road is closed. Both directions of affected roads shall be reopened and safely passable at the end of each workday.

v. Install new railing along the gulley side of boardwalk to protect from falls. Tie into railing at concrete stairs. Railing shall meet ABA requirements and match as closely as possible the railing at the concrete stairs into gulley. Use 316 stainless steel with matte finish. Railing is required approximately half the length of the boardwalk until the grade evens out. Exact location will be identified by DPW and Garrison Safety Office at start of construction.

w. Install new corner curb ramps at both sides of Army Street at its intersection with Pvt.

Bolio Road. Ramps shall be Caltrans standard typical one ramp corner installation.

x. If required, design and construct a cast-in-place concrete section that will provide for an even transition between the elevation and width of the boardwalk and the elevation and width of the curb ramp in paragraph 2.1.w. This transition shall be ABA compliant.

Signed and sealed design drawings shall be submitted for reference prior to construction.

y. Paint “ladder type” crosswalk at Army Street to connect the new ABA-compliant curb ramps. Relocate stop sign and repaint stop bar and other markings as required to accommodate crosswalk. All pavement markings shall comply with latest edition of

MUTCD.

New Work – At-Grade Sidewalk

z. Install new 4” thick concrete sidewalk 5’ wide from new curb ramp on east side of Army Street along Pvt. Bolio Road to the existing sidewalk in front of B-358. Finished elevation of sidewalk to match existing top of curb at back of curb. Sidewalk shall slope ¼” per foot towards curb. Decrease new sidewalk width to match existing sidewalk in front of cottages at 1:12 rate.

New Work – Entrance Sidewalk

aa. Install new pedestrian access walk through gate and other modifications at the fence line.

bb. Install a 4” thick concrete sidewalk 4’ wide from new access gate at the Pvt. Bolio/Lower Presidio entrance. Finished elevation of sidewalk to match existing top of curb at back of curb. Cross slope of sidewalk shall be ¼” per foot. Profile of sidewalk shall match existing curb.

cc. Sidewalk elevation shall gradually match roadway elevation and parking lot elevation at the respective ends. Transition section shall be ABA compliant (1:12 slope max). Extend sidewalk transition area to existing pavement edge at fence end to eliminate vegetated areas between sidewalk and Pvt. Bolio Road.

dd. Concrete for all at-grade sidewalks and the cannon pad shall meet the following:

1. Concrete mix design shall reflect 4000psi concrete and Type I/II cement. Up to 15% by weight of fly ash may be substituted for cement.

2. Slab shall be reinforced with WWF 6x6-W1.4xW1.4, placed at the center of the slab.

3. Install contraction joints 1” deep as required. Fill with joint sealer and backer rod.

Cut every other wire crossing the contraction joint.

4. At end of day’s placement, ensure all reinforcing steel extends 16” minimum to next concrete pour.

5. Under concrete sidewalks, grade and compact native soil subgrade. Install 4” of aggregate base and compact to 95%. Install 15 mil vapor barrier before placing concrete.

New Work – Cannon Pad

ee. Remove existing wood chip and weed barrier. Place concrete pad for supporting cannon.

Concrete shall match existing concrete at adjacent flagpole structure in appearance, color, and texture. Concrete to meet all other requirements of sidewalk as noted in this scope of work, except there will be no joints in this slab and it shall be placed all at one time. New pad shall fit in footprint of existing as shown in Technical Exhibit 4. Existing boundary may remain in place and be used as form. Top of form shall be top of slab. Approximate size is 10’ x 16’.

ff. Install 316 stainless steel matte finish support posts to support cannon. Attach posts to concrete with stainless steel bolts. Support areas of post shall have ¼” thick neoprene pad to protect cannon.

gg. Cannon will be removed by others prior to work and replaced by others after work is complete.

2.2 The contractor shall provide at a minimum the following technical submittals for review by the Government. Allow two weeks for review.

a. Project schedule

b. Concrete mix design

c. Precast concrete boardwalk design and specifications

d. Other concrete designs and specifications

e. Traffic control plan

f. Traffic striping plan

g. Geotechnical data

h. Cannon support post material data

i. Erosion control measures at new drainage swales

j. Hydroseed mix

k. Concrete mix design for cannon pad

l. Fence modification design including proposed pedestrian access gate

2.3 Contractor shall meet with DPW POC and COR weekly to update on construction progress.

2.4 Upon completion of the project, Contractor shall provide manufacturer’s warranty for any installed parts and systems, as well as contractor warranty on labor and workmanship.

2.5 Attachments

a. Technical Exhibit 1 - Overall Site Plan

b. Technical Exhibit 2 - Site Plan Hachiya to Army

c. Technical Exhibit 3 - Site Plan Army to Cottages

d. Technical Exhibit 4 - Site Plan Cannon Pad

e. Technical Exhibit 5 - Hachiya Bolio Intersection

f. Technical Exhibit 6 - Army Intersection

g. Technical Exhibit 7 - Existing Drainage Swale

h. Technical Exhibit 8 – Construction Details

i. Technical Exhibit 9 – Performance Specification for Precast Concrete Boardwalk

j. Technical Exhibit 10 – Entrance Sidewalk Plan

3. Period of Performance (POP):

The Period of Performance (POP) will commence upon issue of the Notice to Proceed (NTP) and shall be finished no later than 270 calendar days following NTP. This includes time to develop submittals and receive Government approval, lead and delivery time for material, project execution, cleanup after the project is complete, and demobilization.

4. General Information:

4.1 Federal Observed Holidays: The Contractor will not be required to perform repairs or construction work on Federal Holidays. Below is the observed holiday’s schedule:

New Year’s Day 1st day of January Martin Luther King, Jr. Day 3rd Monday of January President’s Day 3rd Monday of February Memorial Day Last Monday of May Independence Day 4th day of July Labor Day 1st Monday of September Columbus Day 2nd Monday of October Veteran’s Day 11th day of November Thanksgiving Day 4th Thursday of November Christmas Day 25th day of December

4.2 Hours of Operation: The Contractor is responsible for conducting business, between the hours 0800 – 1630, Monday through Friday, except Federal Holidays or when the Government facility is closed due to local or national emergencies, administrative closings, or similar Government directed facility closings. The contractor must at all times maintain an adequate workforce for the uninterrupted performance of all tasks defined within this SOW when the Government facility is not closed. No deliveries may be scheduled before 0830.

4.3 Place of Performance: The work to be performed shall be along Pvt. Bolio Road and the Cannon pad is located at Stillwell and Kit Carson Road, Presidio of Monterey, California.

4.4 Quality Control Plan (QCP): The Contractor shall develop and maintain an effective QCP to ensure services are performed in accordance with this SOW.

4.5 Security Requirements: The Contractor shall submit a list of employees to the DPW POC for security access processing and approval. The list shall contain the employee’s full name, state driver’s license number, social security number, and date of birth. Contractor personnel shall be prepared to be searched by the installation security guard force.

4.6 Acceptance and Warranty: The contractor shall coordinate with the Contracting Officer’s Representative (COR) for final close-out inspection and/or acceptance at each phase of the project. The project may only be officially accepted by the COR. The contractor shall provide warranty manuals/documents (if applicable) to the COR within 30 days following the acceptance of the project. The manuals/documents shall be submitted to the COR.

4.7 Safety Requirements: No person shall be subjected to work in an unsafe or dangerous environment. Contractor safety will be governed by AR 385-10, paragraphs 3-5, 3-8, and Chapter 4. AR 385-10 may be made available through the COR.

4.8 Environmental Protection Plan (EPP): Not applicable to this project.

4.9 AT Level I Training. All contractor employees, to include subcontractor employees, requiring access to Army installations, facilities and controlled access areas shall complete AT Level I awareness training NLT 15 calendar days after contract award start date or effective date of incorporation of this requirement into the contract, whichever is applicable. The contractor shall submit certificates of completion for each affected contractor employee and subcontractor employee to the IGSATR or to the Inter-Governmental Services Agreement Manager (IGSAM), within 5 calendar days after completion of training by all employees and subcontractor personnel. AT Level I awareness training is available at the following website: http//jko.jten.mil.

4.10 Access and General Protection/Security Policy and Procedure. Contractor and all associated subcontractor employees shall provide all information required for background checks to meet installation access requirements to be accomplished by the installation Provost Marshall, Director of Emergency Services or Security Office. Contractor workforce shall comply with all personal identity verification requirements (FAR clause 52.204-9, Personal Identity Verification of Contractor Personnel) as directed by DoD, HQDA and/or local policy. In addition to the changes otherwise authorized by the changes clause of this contract, should the Force Protection Condition (FPCON) at any individual facility or installation change, the Government may require changes in contractor security matters or processes

4.11 For Contractors that do not require CAC, but require access to a DoD Facility or Installation. Contractor and all associated subcontractor employees shall comply with adjudication standards and procedures using the National Crime Information Center Interstate Identification Index (NCIC-III) and Terrorist Screening Data Base (TSDB) (Army Directive 2014-05/AR 190-13), applicable installation, facility and area commander installation/facility access and local security policies and procedures (provided by government representative), or at OCONUS locations, in accordance with status of forces agreement and other regulations.

4.12 iWATCH Training. The contractor and all associated subcontractor shall brief all employees on the local iWATCH program (training standards provided by the requiring activity ATO). This locally developed training will be used to inform employees of the types of behavior to watch for and instruct employees to report suspicious activity to the COR. This training shall be completed NLT 30 calendar days of contract award and NLT 5 calendar days of new employees commencing performance. The results shall be reported to the COR on/or before the timelines stipulated.

4.13 OPSEC Training. Per AR 530-1 Operations Security, the contractor employees must complete Level I OPSEC Awareness training. New employees shall complete training with 30 calendar days after their report of duty date and annually thereafter.

5. Environmental Stipulations

Contractor must abide by the following environmental stipulations:

1. General: Project must operate in full compliance with the most recent Federal, State, and local environmental laws, regulations, and programs.

2. Cultural Resources: In accordance with the 32 CFR part 800 compliance documentation for this project:

a. All Sidewalk Projects: A professional archaeologist (per qualifications at 36 CFR 61) and consultant from the Ohlone/Costanoan-Esselen Nation shall monitor ground disturbance associated with this project.

b. Cannon Pad: New concrete shall match existing concrete in color and texture (note:

flagpole and flagpole mount are contributing elements to the Presidio of Monterey Historic District).

c. Inadvertent Discoveries (all sidewalks and cannon pad): If cultural resources are inadvertently discovered during construction (e.g., arrow heads, bones, bottles, horseshoes, etc.), work shall be halted within 30-meters (100-feet) of the find until it can be evaluated by the U.S.

Army Cultural Resources Program Manager (Presidio CRM) (Laura Prishmont Quimby; 831- 242-7926). Inadvertent discoveries will require implementation of procedures set forth in the USAG POM's ICRMP and Army Regulation 200-1, which includes consultation procedures and planning requirements IAW Section 106 of the National Historic Preservation Act (NHPA) (16 U.S.C. 470f; 36 CFR Part 800).

d. Inadvertent Discoveries (all sidewalks and cannon pad): If an inadvertent discovery of human remains occurs, work shall cease within 30-meters of the find for 30 days and immediate notification must be made to the Presidio CRM. The Presidio CRM will preliminarily determine if the remains are from a recent crime scene (50 years old or less) or are of Native American descent and will immediately notify the Presidio Garrison Commander. If the remains appear recent, a 30-meter radius will be declared off limits to everyone except authorized personnel and the Army's Criminal Investigation Command will assume control of the crime scene. If the remains appear to be of Native American descent, the U.S. Army will coordinate with the appropriate Native American tribes per Section 3 of NAGPRA. An inadvertent discovery of human remains, funerary objects, sacred objects, or objects of cultural patrimony will require implementation of procedures set forth in the ICRMP and Army Regulation 200-1, which includes consultation procedures and planning requirements IAW Section 3 of the Native American Graves Protection and Repatriation Act (NAGPRA; 25 U.S.C. 3001 et seq.; 43 CFR 10).

3. Air Quality: Use of portable generators must be certified under the Portable Equipment Registration Program (PERP) via the California Air Resources Board.

4. Hazardous Waste: If hazardous wastes are generated by the project, they shall be handled by a certified contractor in accordance with applicable laws and regulations. The contractor will prepare hazardous waste manifests to be signed by Presidio of Monterey, Hazardous Waste Office (831-242-7204 or 831-242-7933, with 48 hours prior notice).

5. Stormwater:

a. Ensure all equipment and vehicles are kept on hardscape. Staging areas must be on DPW Env. approved hardscaped areas.

b. In accordance with the Phase II Municipal Separate Storm Sewer Systems (MS4) General Permit, Best Management Practices (BMPs) are required to be used to minimize erosion from the project site and to prevent any illicit discharges to the MS4 during construction. BMPs must be implemented and followed according to the latest California Stormwater Quality Association (CASQA) Construction BMP Handbook. Any illicit discharges to the MS4 must be reported immediately to Erika Marx at 831-242-7925.

c. All areas where soil disturbance occurs, would need to be restored to its original condition or better and any hydroseed mixtures would need to be approved by our Natural Resource Manager (April Andujar 831-242-6736).

d. Project must comply with the requirements of Resolution No. R3-2013-0032: Post- Construction Stormwater Management Requirements for Development Projects in the Central Coast Region.

6. Natural Resources: The boardwalk (raised sidewalk) must include enclosure or mesh to prevent creating animal habitat.

7. Presidio of Monterey is required to divert (recycle, reuse, etc.) at least 60 percent (60%) of its unhazardous construction and demolition wastes from the waste stream. Pis. Provide weight receipts for recycled materials to POM Environmental Division (joelle.l.lobo.civ@mail.mil).

Technical Exhibit 1 – Overall Site Plan

Technical Exhibit 2 - Site Plan Hachiya to Army

Technical Exhibit 3 - Site Plan Army to Cottages

Technical Exhibit 4 – Cannon Pad (1 of 2)

Technical Exhibit 4 – Cannon Pad (2 of 2)

Technical Exhibit 5 - Hachiya Bolio Intersection

Technical Exhibit 6 - Army Intersection

Technical Exhibit 7 – Existing Drainage Swale

Technical Exhibit 8 - Construction Details

Control Joint Detail

Caltrans Curb Ramp Case G

Caltrans Corner Curb Ramp

Transition Area (if required)

Typical Footing Detail

Boardwalk Plan

Typical Sidewalk Section

New Drainage Swale Details

Technical Exhibit 9- Performance Specification for Precast Concrete Boardwalk

PART 1-GENERAL

1.1 SUMMARY

A. These specifications are for a precast concrete boardwalk and shall be regarded as minimum standards for this project. These specifications are based upon products designed and supplied by:

PermaTrak North America LLC Ph: 877-332-7862 www.permatrak.com

This item shall also include the design, specification, and construction of a railing and foundation system that is attached to the proposed boardwalk system.

1.2 ALTERNATE REQUIREMENTS: Alternates are allowed provided that the following minimum standards and these “Precast Concrete Boardwalk System” performance specifications are met.

A. Minimum Standards as outlined in Section 1.3 below must be met.

B. A drawing of the precast boardwalk system (including tread layout, structural details designed for the design loads shown on the contract documents, and foundation design and layout) must be signed and sealed by a registered Professional Engineer.

C. Submittal must meet the requirements set forth in Section 1.6.

1.3 MINIMUM STANDARDS: The selected boardwalk shall have the following minimum characteristics:

A. Boardwalk system (beams, treads, and curbs if applicable) must be precast concrete. A material change, including cast-in-place concrete, is not considered an equal to the design detailed in this SOW.

B. Walking surface (treads) shall be made of precast concrete, and supported by precast concrete beams. Where applicable, edges of treads will receive precast concrete curbs.

C. Walking surface (finish) of top surface of treads shall have a slip resistant finish. Texture must be integral with the concrete and shall not be an applied post pour wearing surface.

D. Precast concrete treads shall be structural load bearing elements and shall interlock with one another via a “tongue and groove” connection.

E. All precast shall consist of integrally colored concrete in a color selected by the owner.

F. DESIGN LOADS: Designed for the following live loads:

1. Pedestrian live load of 90 psf.

2. 5000 lb. maintenance vehicle.

http://www.permatrak.com/

G. Treads shall maintain a “boardwalk appearance”, specifically meaning each tread shall have a width: length ratio ranging from a minimum of 3:1 to a maximum of 14:1. Width is defined as the tread dimension perpendicular to the normal direction of travel. Length is defined as the tread dimension measured in the direction of travel.

H. Connectors for curbs (if applicable) to treads shall not be visible to boardwalk users while viewed from the top of the walkway.

I. All boardwalk connectors shall be non-corrosive, and hidden from view.

J. Boardwalk supplier shall provide a field representative on site for a minimum of 2 days during the installation. Field representative shall be knowledgeable in the installation of precast concrete boardwalks.

1.4 QUALITY ASSURANCE

A. Manufacturer Qualifications: Not less than 10 years of experience in the actual production of precast products as described below.

1. Components shall be factory fabricated and engineered by single entity.

2. Boardwalk supplier (Precaster) for the boardwalk shall have in-house color mixing facilities for color pigmentation.

3. Boardwalk supplier (Precaster) shall have either a minimum experience of 5 years or 50 boardwalk projects in design, production, and field consultation.

4. Boardwalk supplier (Precaster) must be certified by PCI or NPCA.

5. Precast components must be manufactured with the use of hot rolled steel skin in reinforced steel forms. Temporary single use forms are unacceptable.

B. Acceptability Criteria for Treads and Curbs (if applicable): The finished visible (in the final installed position) surface shall have no obvious imperfections other than minimal color or texture variations from the approved samples or evidence of repairs when viewed in good typical daylight illumination with the unaided naked eye at a 20 ft. viewing distance. Appearance of the surface shall not be evaluated when light is illuminating the surface from an extreme angle as it tends to accentuate the minor surface irregularities.

The following is a list of finish defects that shall be properly repaired, if obvious when viewed at a 20 ft. distance. Patching (by a trained skilled concrete repair person) is an acceptable repair method.

1. Ragged or irregular surfaces.

2. Excessive air voids (commonly called bug holes) larger than ¼ in. evident on the top surface of the tread or curbs (if applicable).

3. Adjacent flat and return surfaces with greater texture and/or color differences than the approved samples or mockups.

4. Casting and/or aggregate segregation lines evident from different concrete placement lifts and consolidation.

5. Visible mold joints or irregular surfaces.

6. Rust stains on exposed surfaces.

7. Units with excessive variation in texture and/or color from the approved samples, within the unit or compared with adjacent units.

8. Blocking stains evident on exposed surfaces.

9. Areas of backup concrete bleeding through the facing concrete.

10. Foreign material embedded in the surface.

11. Visible repairs at a 20 ft. viewing distance.

12. Reinforcement shadow lines.

13. Cracks visible at a 20 ft. viewings distance.

1.5 DESIGN

A. The designer of the boardwalk, foundation and railing system shall be a qualified registered Professional Engineer and experienced in the design of concrete structures, foundation and railing systems.

B. DESIGN CRITERIA: The design of the boardwalk and railing system shall comply with the following guidelines:

1. AASHTO LRFD Guide Specifications for The Design of Pedestrian Bridges, 2nd Edition

2. AASHTO LRFD Bridge Design Specifications for Highway Bridges, 5th Edition.

3. American Concrete Institute 2005 – Building Code and Commentary.

4. In addition to the dead loads of the system, the structure shall be designed for the live loads defined in Section 1.3.F above.

5. Railing structural requirements:

a. Handrail and railing assemblies and attachments shall resist a minimum concentrated load of 200 pounds (91 kg) applied in any direction at any point on the top rail and a vertical and horizontal thrust of 50 lb./lf (0.73 kN/m) applied to the top railing without permanent set or damage. The two loads are not cumulative.

b. Infill area of railing system capable of resisting a horizontal concentrated load of 200 pounds applied to one square foot (8165 g/sq. m) at any point in the system. This loading shall not be applied simultaneously with other loading conditions.

c. Handrail assemblies and guards shall be designed to resist a load of 50 pounds per linear foot (0.73 kN/m) applied in any direction at the top and to transfer this load through the supports to the structure.

6. Railings shall be suitable for pedestrian traffic and shall be ADA compliant.

1.6 SUBMISSIONS: Prior to the start of fabrication or construction, the Contractor shall submit to the Owner a design package, which shall include, but is not limited to, the following:

A. PRELIMINARY SUBMITTALS:

1. DETAILED PLANS:

a. REGISTRATION / SEAL: Sealed by a registered Professional Engineer.

b. PLAN VIEW: Full plan view of the boardwalk, foundation and railing system drawn to scale. The plan view must reflect the proposed horizontal alignment as shown on the design plans.

c. ELEVATION VIEW: Full elevation view of the boardwalk, railing and foundation system drawn to scale which reflect the actual vertical alignment. Elevation views shall indicate the elevation at the top and bottom of the boardwalk and foundation system components, horizontal and vertical break points, and location of the finished grade.

d. DETAILS: Details of all boardwalk and railing system components and their connections such as the length, size and where changes occur;

connections; etc.

e. CODE REFERENCE: Design parameters used along with AASHTO references.

2. DESIGN COMPUTATIONS: computations shall:

a. Be stamped by a registered Professional Engineer.

b. Computations shall clearly refer to the applicable AASHTO provisions.

c. Documentation of computer programs including all design parameters.

3. CONSTRUCTION SPECIFICATIONS:

a. Construction methods specific to the boardwalk vendor chosen. Submittal requirements such as certification, quality and acceptance/rejection criteria shall be included. Details on connection of boardwalk units and foundation system such that assurance of uniform load transfer shall be checked.

B. FINAL SUBMITTALS: Once the boardwalk, foundation, and railing system design has been reviewed and accepted by the Owner, the Contractor shall submit the final plans.

The designer of the boardwalk, foundation and railing system is responsible for the review of any drawings prepared for fabrication. One set of all approved shop drawings shall be submitted to the owner for permanent record.

C. PRODUCT DATA SUBMITTALS: Submit Manufacturer’s technical product data for railing components and accessories.

Manufacturer to supply submittal drawings for approval to include the following:

1. Section-thru details.

2. Mounting methods.

3. Typical Elevations.

4. Key plan layout.

D. AS-BUILT DRAWINGS: Drawings showing actual field conditions and true elevation and location supplied after field verification.

1.7 DELIVERY, STORAGE, AND HANDLING

A. Store products in manufacturer's unopened packaging until ready for installation.

B. Field Measurements: Where handrails and railings are indicated to fit to other construction, check actual dimensions of other construction by accurate field measurements before fabrication; show recorded measurements on final shop drawings:

1. Where field measurements cannot be made without delaying the railing fabrication and delivery, obtain guaranteed dimensions in writing by the Contractor and proceed with fabrication of products so as not to delay fabrication, delivery and installation.

C. Coordinate fabrication and delivery schedule of handrails with construction progress and sequence to avoid delay of railing installation.

1.8 WARRANTY:

A. Contractor will be responsible for installation defects associated with the boardwalk and abutment components, foundation system, and railings for a period of 12 calendar months from the date of final acceptance by the Owner.

B. Boardwalk manufacturer shall warranty all precast concrete components against defects in material and workmanship for a period of ten years.

C. Railing manufacturer shall warranty the railing against defects in materials and workmanship for a period of 12 months.

PART 2-MATERIALS & TESTING

2.1 Precast concrete shall conform to the following:

a. The minimum compressive strength of the concrete shall be 4000 psi measured at 28 days.

b. All precast concrete components shall be air entrained composed of Portland cement, fine and course aggregates, admixtures and water. The air-entraining feature may be obtained by the use of either an air entraining Portland cement or an air entraining admixture. The entrained air-content shall be not less than four percent or more than seven percent.

PART 3 - EXECUTION

1.1 PRECAST CONCRETE BOARDWALK

A. Installation of the precast concrete boardwalk system and railings, if applicable, shall be performed in accordance to the approved plans and manufacturer’s installation instructions. Boardwalk manufacturer shall provide a field representative to review installation instructions with the Contractor and Engineer and to certify that the installation has been performed according to the approved drawings and manufacturer’s instructions.

END SECTION

Technical Exhibit 10 – Entrance Sidewalk Plan (1 of 2)

Technical Exhibit 10 – Entrance Sidewalk Plan (2 of 2)