Attachment B - Technical Specifications.pdf

TECHNICAL SPECIFICATIONS

SAND CREEK TRAIL IMPROVEMENT PROJECT

PROJECT NO. 5931A

Section 01010-Summary of Work 01010 to 01010-3 Section 01045-Cutting and Patching 01045 to 01045-2 Section 01050-Field Engineering 01050 to 01050-2 Section 01060-Regulatory Requirements 01060 to 01060-1 Section 01300-Submittals 01300 to 01300-4 Section 01400-Quality Control 01400 to 01400-1 Section 01500-Trail Construction Signage & Barricades 01500 to 01500-3 Section 01510-Water, Sediment and Erosion Control 01510 to 01510-3 Section 01520-Construction Fence 01520 to 01520-2 Section 01530-Tree Protection 01530 to 01530-2 Section 01570-Traffic Control 01570 to 01570-3 Section 01600-Material and Equipment 01600 to 01600-6 Section 01700-Project Closeout 01700 to 01700-4 Section 01800-Warranty 01800 to 01800-2 Section 02100-Site Preparation 02100 to 02100-3 Section 02200-Earthwork 02200 to 02200-5 Section 02480-Seeding & Sodding 02480 to 02480-8 Section 02510 Crusher Fines Paving 02510 to 02510-5= Section 03000-Concrete 03000 to 03000-13 Section 03100-HDPE Storm Sewer Pipe 03100 to 03100-3 Section 03110-Storm Sewer Area Inlet 03110 to 03110-2 Section 03500-Riprap 03000 to 03000-13

THIS DOCUMENT CONTAINS ALL ITEMS AND PAGES LISTED UNDER TABLE OF

CONTENTS ABOVE, AND IT IS THE BIDDER'S RESPONSIBILITY TO VERIFY THAT ALL

PAGES ARE INCLUDED IN DOCUMENT PRIOR TO SUBMITTING BID.

5/30/2025 City of Aurora PROS Project 5962A

SAND CREEK TRAIL IMPROVEMENT PROJECT

SUMMARY OF WORK

01010

SUMMARY OF WORK

01010

PART 1 GENERAL

1.1 SCOPE

1.2 EXAMINATION OF SITE

1.3 CONTRACTS

1.4 WORK SEQUENCE AND TIMING

1.5 CONTRACTORS USE OF PREMISES

1.6 EXISTING UTILITIES

1.7 COORDINATION

PART 2 PRODUCTS

PART 3 EXECUTION

3.1 INSPECTION AND ACCEPTANCE

SAND CREEK TRAIL IMPROVEMENT PROJECT

SUMMARY OF WORK

01010-1

SUMMARY OF WORK

01010

PART 1 GENERAL

1.1 Scope

Furnish all materials, labor, appliances, equipment, and transportation and perform all operations required to complete the improvements, as shown on the drawings and noted in the specifications for the Morris Heights FLG #3 & MBT #01 – Sand Creek Trail Improvement Project.

1.2 Examination Of Site

A. Failure to visit the site shall not relieve the Contractor from requirements for furnishing materials or performing work that may be required to complete work in accordance with the contract.

B. Access to the construction site shall be determined at the pre-construction meeting.

C. Any damage to City, Park or private property including but not limited to City streets, City sidewalks, Park concrete, adjacent landscape, adjacent site improvements, fence, existing irrigation system components and existing underground utilities due to demolition activities shall be repaired by the Contractor at no additional cost to the Contract.

1.3 Contracts

A. Construct the work under the bid prices in the Contract Proposal.

B. Alternatives, if described in the drawings and bid documents will be added to or deleted from the contract according to funding available.

1.4 Work Sequence And Timing

Conduct demolition work in a sequence that does not damage adjacent improvements. See special conditions for completion period.

1.5 Contractors Use Of Premises

A. Contractor shall limit his use of the site to areas within the construction limit shown on the

Drawings. Contractor shall repair all areas disturbed beyond contract limits areas disturbed during construction. Repair may include irrigation repair, soil preparation, seeding, sodding, mulching, planting, fence work or paving.

B. Contractor shall install either chain-link construction fencing, post and rope fencing, or silt fence along all construction limit lines as shown on the plans (see Specification Section 01520 – Construction Fencing and Specification Section 02835 – Post & Cable Fencing).

C. Contractor’s staging area shall be located within the limits of construction and be in accordance with COA SWMP. Contractor shall confine all equipment to within the project sites construction limit lines. Contractor shall provide security for his material and equipment and for public safety.

D. Contractor assumes full responsibility for the protection and safekeeping of products obtained under this Contract and stored on site.

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SUMMARY OF WORK

01010-2

E. Contractor shall obtain and pay for the use of additional storage or work areas needed for operations.

F. Operations of the Contractor shall be limited to area defined by the contract limit line on the drawings. Contractor shall restore the project site including the staging area to its original or better condition as determined by the Owner.

1.6 Existing Utilities

All existing utilities shall be protected from damage during construction. The Contractor shall arrange to have private utility companies and the City of Aurora field locate all utilities prior to beginning construction. The Contractor shall immediately notify the City of Aurora Project Manager or Parks Construction Inspector of any utilities encountered, which were not marked or not indicated on the plans.

1.7 Coordination

A. Coordinate work with the various sections of Specifications to assure efficient and orderly sequence of installation of construction elements, with provisions accommodating items installed later.

B. Verify characteristics of elements of interrelated operating equipment are compatible;

coordinate work of various sections having interdependent responsibilities for installing, connecting to, and placing in service, such equipment.

PART 2 PRODUCTS

Not used.

PART 3 EXECUTION

3.1 Inspection and Acceptance

Any material, product or workmanship deemed by the City of Aurora Project Manager or Parks Construction Inspector to be unacceptable or not in accordance with these Drawings and Specifications shall be corrected immediately. In addition to informal, unscheduled inspections by City of Aurora Project Manager, City of Aurora Parks Construction Inspector, City of Aurora Parks Staff, the Contractor shall meet with the City of Aurora Project Manager or his or her agent at the following inspection times:

1. Pre-construction Conference

2. Site Record Meeting: prior to any site/construction activity, City of Aurora Construction Inspector shall record any pre-demolition damage to existing site features.

3. Meet to confirm protection of utilities, monuments, installations, site drainage, trees and plants to remain prior to any other site activity.

4. Regular weekly construction meeting on a recurring day, time and location mutual to the City and the Contractor for the purpose of reviewing the progress of the work, reviewing Contractor schedules and discussion/solving of contingencies.

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SUMMARY OF WORK

01010-3

5. Review of Contractor’s proposed finish grade

6. Seed and mulching completion.

7. Substantial completion (punch list of unacceptable items will be generated). See Project Closeout Specification 01700.

8. Seed establishment approval (if required). See Seed and Sod Specification 02480.

9. Final completion - punch list review. See Project Closeout Specification 01700.

The Contractor will also be required to meet with the City’s Erosion Control Inspector prior to establishing BMP’s and thereafter in accordance with the requirements of the Erosion Control Inspector.

Contact City of Aurora Project Manager or Parks Construction Inspector a minimum of ten business days prior to any desired meeting time.

END OF SECTION

SAND CREEK TRAIL IMPROVEMENT PROJECT

CUTTING AND PATCHING

01045

PART 1 GENERAL

1.1 DESCRIPTION OF WORK

1.2 QUALITY ASSURANCE

PART 2 PRODUCTS

2.1 MATERIALS

PART 3 EXECUTION

3.1 INSPECTION

3.2 PREPARATION

3.3 CUTTING AND PATCHING

SAND CREEK TRAIL IMPROVEMENT PROJECT

CUTTING & PATCHING

01045-1

1.1 Description of Work

A. Work Included: Cutting, fitting and patching including related excavation and backfill, required to complete the work or to:

1. Make its parts fit together properly.

2. Uncover portion of the work to provide for installation of ill-timed work.

3. Remove and replace defective work.

4. Remove and replace work not conforming to requirements of Contract Documents.

5. Remove samples of installed work as specified for testing.

6. Provide routine penetrations of non-structural surfaces for installation of piping and electrical conduit.

B. Related Sections:

02100 Site Preparation 02200 Earthwork 03000 Concrete

1.2 Quality Assurance

A. Notify City of Aurora Project Manager 24 hours in advance of executing and cutting or alteration which affects:

1. The work of the City or any separate contractor.

2. The structural value or integrity of any element of the project.

3. The integrity of effectiveness of weather-exposed or moisture resistant elements or systems.

4. The efficiency, operational life, maintenance or safety of operational elements.

5. The visual qualities of sight-exposed elements.

2.1 Materials

Comply with specifications and standards for each specific product involved.

PART 3 - EXECUTION

3.1 Inspection

A. Inspect existing conditions of the project, including elements subject to damage or to movement during cutting and patching.

B. After uncovering work, inspect conditions affecting installation of products or performance of work.

SAND CREEK TRAIL IMPROVEMENT PROJECT

CUTTING & PATCHING

01045-2

3.2 Preparation

Provide adequate temporary support as necessary to assure the structural value and integrity of the affected portion of the work. Provide devices and methods to protect other portions of the project from damage. Provide protection from elements for the portion of the project, which may be exposed by cutting and patching work, and maintain excavations free from water.

3.3 Cutting and Patching

A. General: Openings in construction, which are required by other contractors, shall be left by crafts involved. It is the responsibility of applicable contractors to supply in advance proper and sufficiently detailed information. All cutting as may be required shall be done only after concurrence of City of Aurora Project Manager and at expense of negligent party.

B. Cutting:

1. Execute cutting and demolition by methods, which will prevent damage to other work, and will provide proper surfaces to receive installation or repair.

2. Execute excavating and backfilling by methods which will prevent settlement or damage to other work.

3. Employ the original installer or fabricator to perform cutting and patching for:

Weather-exposed or moisture-resistant elements.

Sight-exposed finished surfaces.

4. Cut asphalt, concrete or masonry using masonry saw or core drill as applicable.

Pneumatic tools will not be allowed unless accepted by City of Aurora Project Manager.

C. Fitting: Execute fitting and adjustment of products to provide a finished installation to comply with specified products, functions, tolerances and finishes. Fit work airtight to pipes, sleeves, ducts, conduit and other penetrations through surfaces.

D. Finishing: Where surfaces are exposed, finish with materials specified in finish schedule or materials that are on constructed surfaces. Work shall be accomplished by mechanics skilled in finish trade. Refinish entire surfaces as necessary to provide an even finish to match adjacent finishes:

• For continuous surfaces, refinish to nearest intersection.

• For an assembly, refinish the entire unit.

PART 4 MEASUREMENT AND PAYMENT

4.1 Measurement

No Measurement will be made for Cutting & Patching.

4.2 Payment

A. The cost of for all labor, materials and equipment necessary to complete the work shall be considered incidental and included in the bid. No separate payment shall be made for cutting and patching associated with completing the specified work.

SAND CREEK TRAIL IMPROVEMENT PROJECT

FIELD ENGINEERING

01050

PART 1 - GENERAL

1.1 RELATED WORK

1.2 SUMMARY

1.3 SUBMITTALS

1.4 QUALITY ASSURANCE

PART 2 - PRODUCTS

PART 3 - EXECUTION

3.1 INSPECTION

3.2 PERFORMANCE

PART 4 MEASUREMENT AND PAYMENT

4.1 MEASUREMENT & PAYMENT

SAND CREEK TRAIL IMPROVEMENT PROJECT

01050-1

PART 1 - GENERAL

1.1 Related Work

A. Related Documents: Construction Plans, General and Special Conditions of the Contract apply to work of this section.

1.2 Summary

A. General: This Section specifies administrative and procedural requirements for field engineering services, including, but not necessarily limited to, the following:

Survey and Layout Work

1.3 Submittals

A. Project Record Documents: Submit a record of Work performed and record survey data as required under provisions of the Contract Documents.

1.4 Quality Assurance

A. Surveyor: Engage a land surveyor with a minimum 5 years experience in layout and survey work, registered in the State where the project is located, to perform layout and surveying services required.

PART 2 - PRODUCTS

(Not Applicable)

PART 3 - EXECUTION

3.1 Inspection

A. The Project Manager will identify existing control points indicated on the Drawings.

B. Verify layout information shown on the Drawings, in relation to the street right of way, existing building and existing benchmarks before proceeding to layout the Work. Locate and protect existing benchmarks and control points. Preserve permanent reference points during construction.

1. Do not change or relocate benchmarks or control points without prior written approval.

Promptly report lost or destroyed reference points, or requirements to relocate reference points because of necessary changes in grades or locations.

2. Promptly replace lost or destroyed project control points. Base replacements of the original survey control points.

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01050-2

C. Establish and maintain a minimum of two permanent benchmarks on the site, referenced to data established by survey control points.

1. Record benchmark locations, with horizontal and vertical data, on Project Record Documents.

D. Existing utilities and equipment: The existence and location of underground and other utilities and construction indicated as existing are not guaranteed. Before beginning site work, investigate and verify the existence and location of underground utilities and other construction.

1. Prior to construction, verify the location and invert elevation at points of connection of sanitary sewer, storm sewer and water service piping.

3.2 Performance

A. Working from lines and elevations established by the existing conditions survey, establish benchmarks and markers to set lines and levels as needed to properly locate each element of the Project. Calculate and measure required dimensions within indicated or recognized tolerances. Do not scale Drawings to determine dimensions.

1. Advise entities engaged in construction activities, of marked lines and elevations provided for their use.

2. As construction proceeds, check every major element for line, level and plumb.

B. Surveyor's Log: Maintain a surveyor's log of control and other survey Work. Make this log available for reference.

1. Record deviations from required lines and levels, and advise the Project Manager when deviations that exceed indicated or recognized tolerances are detected. On Project Record Drawings, record deviations that are accepted and not corrected.

C. Site Improvements: Locate and lay out site improvements, including pavements, stakes for grading and fill placement, utility slopes and invert elevations by instrumentation and similar appropriate means.

D. Existing Utilities: Furnish information necessary to adjust, move or relocate existing structures, utility poles, lines, services or other appurtenances located in, or affected by construction. Coordinate with local authorities having jurisdiction.

4.1 Measurement & Payment

Measurement for Construction Surveying shall be at the lump sum price as bid in the Proposal. The price bid in the proposal shall include clearing and grubbing of the landscape area and the cost of furnishing all labor, equipment and materials necessary to complete the work as shown on the plans and called for in the specifications.

Construction Surveying shall be paid for on the percentage of completion or the actual number of units completed at the time of the pay request.

SAND CREEK TRAIL IMPROVEMENT PROJECT

REGULATORY REQUIREMENTS

01060

PART 1 GENERAL ............................................................................................................................ 01060-1

1.1 PERMIT AND FEES .............................................................................................................. 01060-1

1.2 CODES AND ORDINANCES ................................................................................................ 01060-1

1.3 CONTRACTOR LICENSING.......................................................... ...................................... 01060-1

PART 2 PRODUCTS .......................................................................................................................... 01060-1

NOT USED

PART 3 EXECUTION ......................................................................................................................... 1060-1

NOT USED

SAND CREEK TRAIL IMPROVEMENT PROJECT

01060-1

1.1 Permits and Fees

A. See General and Special Conditions

1.2 Codes and Ordinances

A. All contractors shall comply with all applicable codes, ordinances, and regulations in effect at the time of bid opening, including, but not necessarily limited to, the following:

Applicable local codes and ordinances International Building Code (most current edition adapted by City) Uniform Plumbing Code State Department of Labor Requirements State Department of Health Laws State and Federal Safety and Health Laws NFPA 70 1984 Edition - National Electrical Code County Requirements City Requirements

B. If discrepancies occur between these Specifications, local codes, local utility requirements, etc., the applicable code or requirement shall prevail.

1.3 Contractor Licensing

A. All contractors and subcontractors shall be licensed per requirements of the City of Aurora. All expenses and procedures related to licensing shall be the Contractor’s responsibility.

SAND CREEK TRAIL IMPROVEMENT PROJECT

SUBMITTALS

01300

SUBMITTALS

01300

PART 1 GENERAL

1.1 General

1.2 Progress Schedule

1.3 Traffic Control Plan

1.4 Submittals List, Schedule and Procedures

1.5 Shop Drawings

1.6 Product Data

1.7 Job Site Documents

1.8 Field Measurements

1.9 Samples

1.10 Certificates of Compliance

1.11 As Built Drawing

PART 2 PRODUCTS

NOT USED

PART 3 EXECUTION

NOT USED

SAND CREEK TRAIL IMPROVEMENT PROJECT

01300 - 1

01300

1.1 General

Submittals shall be made early enough to account for processing described below and a minimum of fourteen (14) days for review by the City of Aurora Project Manager and consultants.

1.2 Progress Schedule

A. The schedule shall be in the form of a chart, indicating the start and completion of each of the various elements as listed on Bid Form/Contract Proposal. The schedule shall indicate the major dependencies among elements on the schedule. The completion time shall be as specified in the Agreement. The schedule shall be revised when the completion time is revised by Change Order.

B. At the Pre-Construction meeting, submit four copies of a preliminary construction schedule.

Within ten (10) days after receipt of review comments on preliminary schedule, submit a revised construction schedule. With each monthly application for payment, submit a copy of the updated construction schedule indicating actual work progress in comparison to scheduled progress.

C. Prepare and submit an estimate of partial payments as reflected by estimated work progress with submittal of construction schedule.

D. With each monthly application for payment, submit an itemized report of the delivery status of major and critical items of purchased equipment and material, including Shop Drawings and the status of shop and field fabricated work.

E. If the completion of any part of the work or the delivery of materials is behind the construction schedule, submit a plan for bringing the work up to schedule. The City of Aurora Project Manager shall have the right to withhold progress payments for the work if the contractor fails to update and submit the progress schedule and reports as specified.

F. Nothing on these requirements shall be deemed to be usurpation of the Contractor’s authority and responsibility to plan and schedule the work as he/she sees fit, subject to all other requirements of the Contract Documents.

1.3 Traffic Control Plan

A. The traffic control plan in the drawings is for information only. The Contractor shall submit a Construction Phasing/Traffic Control Plan to the City of Aurora, Traffic Engineering Division, and the City of Aurora Project Manager, and receive approval by the City of Aurora, Traffic Division. The Contractor shall adhere to the plan and stipulations approved by the Traffic Division and Project Manager.

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01300 - 2

1.4 Submittals List, Schedule and Procedures

A. Submittal: At or before the Pre-Construction Conference, and before any items are submitted for review, submit to the City of Aurora Project Manager a submittal list and schedule, one of which shall be forwarded to Engineer.

B. Schedule: Compile a complete schedule of all submittals anticipated to be made during process of the work. Include a list of each type of item for which Contractor’s drawings, Shop Drawings, Product Data, Certificates of compliance, Samples, Warranties or other types of submittals are required. Indicate on the schedule the dates when approval is required to achieve the approved Construction Schedule. Upon acceptance by the City of Aurora Project Manager, the Contractor will be required to adhere to the schedule except when specifically permitted otherwise.

C. Code Designation: On the schedule, designate each item with a number code utilizing the

Specification Section five-digit numbers. Each submittal shall be marked with the same code designation.

D. Coordination: Coordinate the Schedule with Subcontractors and materials suppliers.

E. Revisions: Revise and update the schedule on a monthly basis as necessary to reflect conditions and sequences. Promptly submit revised schedules to the City of Aurora Project Manager for review.

F. Transmittals: Include a transmittal letter with each submittal, identify item by above code designation and reference to Specification Section. Use a separate transmittal for each submittal.

G. Deviations: Clearly and distinctly denote any from the Contract Documents in submittals.

1.5 Shop Drawings

A. Shop drawings submitted for this work shall make particular note of field-measured dimensions, as-built conditions, and conditions requiring special coordination with other contractors and the requirements of the activities of the City of Aurora Project Manager.

B. Subcontractor: Submit digital files (e.g PDF files) of shop drawing sheets and specified number of Samples to the Contractor.

C. Contractor:

1. Review all Shop Drawings for accuracy, completeness, and conformity with the Contract Documents. Make notes and corrections on sepia tracings and prints, and stamp with Contractor’s stamp/date. Signature of individual who reviewed the Shop Drawings is required and located below the Contractor’s stamp.

2. Print as required for Contractor’s record.

3. Submit to City of Aurora Project Manager.

4. Shop Drawings not stamped and signed by the Contractor will be returned.

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01300 - 3

D. City of Aurora Project Manager:

1. Check drawings by making notes and corrections on electronic files or prints, stamp “No

Exceptions Taken”, “Revise and Resubmit”, “Rejected”, etc. as required.

2. In the event that the Shop Drawings require a consultant’s check, route prints through

City of Aurora Project Manager as necessary.

3. Return marked digital file (e.g. PDF’s) to Contractor.

E. Contractor: Provide digital files to Subcontractor.

F. Subcontractor: File necessary copies for record, distribution, etc.

G. Resubmittal: In the event Shop Drawings have to be resubmitted to City of Aurora Project

Manager, electronic file(s) with mark ups shall be returned directly to Contractor.

Subcontractor shall make his/her correction and re-route new files as outlined above.

H. References: Reference Shop Drawings to applicable Drawings and Specifications Sections to facilitate ease and accuracy of checking.

1.6 Product Data

A. Subcontractor: Submit brochure material and required samples, unless otherwise noted by the Technical Specification Section.

B. Routing: Routing will be as indicated above for Shop Drawings with the City of Aurora

Project Manager, Consultant, and Sub-consultant. Electronic document to be returned to the Contractor for his/her file and shall be distributed back to the Subcontractor for file as applicable.

C. Reference: Reference product data to applicable Drawings and Specification Sections to facilitate ease and accuracy of checking.

D. When contents of submitted literature from manufacturer includes data not pertinent to the submittal, clearly indicate which portion of the contents is being submitted for review.

1.7 Job Site Documents

Only accepted Shop Drawings or Product Data shall be kept at the job site. Keep a complete set of such documents on file at the job site.

1.8 Field Measurements

Required field measurements are the responsibility of the Contractor.

1.9 Samples

A. The City of Aurora Project Manager will provide the Contractor with a checklist indicating all materials where color, texture or finish is subject to selection by the City of Aurora Project

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01300 - 4

Manager. The City of Aurora Project Manager in preparation of color and material sample presentations will request other samples for use for the City.

B. Promptly after receipt of checklist, assemble and deliver to the City of Aurora Project

Manager complete collection of all required samples. Unless otherwise specified, submit samples in quantity, which is required to be returned, plus one, which will be retained by the City of Aurora Project Manager.

C. Samples shall bear a tag or label providing the following information:

1. Project name and location.

2. Manufacturer, supplier.

3. Name, finish, and composition of material.

4. Location of where material is to be used.

5. Specification Section number.

D. Upon receipt of such a complete collection of samples, the City of Aurora Project Manager, with reasonable promptness, will make the selections and prepare and deliver to the Contractor a schedule covering all items subject to selection. The City of Aurora Project Manager reserves the right not to make individual determination or selections until all samples of all materials are furnished.

1.10 Certificates of Compliance

Where certificates of Compliance are specified, show on each certification the name and location of the work, name and address of Contractor or supplier, quantity and date or dates of shipment or delivery to which the certificate applies, and names of the manufacturer. Certification shall be in the form of a letter or company standard form. An officer of the manufacturer shall sign certificates. In addition, all laboratory test reports submitted with Certificates shall show date of testing, specified requirements for which testing was performed, and results of tests.

1.11 As Built Drawing

See Project Closeout Specification 01700 for preparation and submittal of as-built drawings of irrigation and any other portion of project constructed different from plans.

SAND CREEK TRAIL IMPROVEMENT PROJECT

QUALITY CONTROL

01400

PART 1 GENERAL

1.1 DESCRIPTION OF WORK

PART 2 PRODUCTS

2.1 PAYMENT FOR TESTING

PART 3 EXECUTION

3.1 COORDINATION

SAND CREEK TRAIL IMPROVEMENT PROJECT

01400-1

1.1 Description of Work

A. This section:

Testing Laboratory Services:

Cooperate with City’s selected testing laboratory and all others responsible for testing and inspecting the work.

B. Related Work Specified Elsewhere

Requirements for testing are listed in individual sections of these Specifications.

2.1 Payment for Testing

A. The City will pay for initial testing services required by the City of Aurora’s Project Manager or Testing Agency.

B. When initial test indicate non-compliance with the Contract Documents, all subsequent re-testing occasioned by the non-compliance shall be performed by the same testing agency. Payment for any additional testing will be the responsibility of the contractor.

3.1 Coordination

A. The Contractor shall advise the City of Aurora’s Project Manager and Materials and

Testing Laboratory sufficiently in advance of work requiring tests and inspections.

B. Minimum lead time for advanced notice to test or inspect work, if not specifically reference in the specifications shall be determined by the City’s Testing Agency.

SAND CREEK TRAIL IMPROVEMENT PROJECT

TRAIL CONSTRUCTION SIGNAGE & BARRICADES

01500-0

TRAIL CONSTRUCTION SIGNAGE & BARRICADES

01500

1.1 Description of Work ……………………………………………………………………………….1

1.2 Job Conditions …………………………………………………………………………..…………1

2.1 Signage ............................................................................................................................….1

2.2 Barricades

2.3 Fencing ........................................................................................………………..…………

3.1 Minor Repairs

3.2 Major Repairs

PART 4 MAINTENANCE

4.1 Daily Inspections

PART 5 MEASUREMENT & PAYMENT

5.1 Measurement & Payment..………………………………………..……………………………… 2

SAND CREEK TRAIL IMPROVEMENT PROJECT

TRAIL CONSTRUCTION SIGNAGE & BARRICADES

01500-1

TRAIL CONSTRUCTION SIGNAGE & BARRICADES

01500

A. Work to include all signage, barriers, fencing, flagmen and warning devices necessary for the safety of trail users. These standards are to be adhered to at any time that work is being performed on or adjacent to a designated trail. The modifications and signage should be included in the overall project cost and anticipated as part of the overall scope of work.

B. The following requirements should be considered as minimum procedures. The safety of the trail users within the limits of construction (including staging and access areas) shall be the responsibility of the contractor. Signs, flaggers, barricades, cones, etc., as specified in the Manual on Uniform Traffic Control Devices must be provided.

1.2 Job Conditions

A. Occupational safety regulations requiring back-up beepers, screens, trench safety, hazardous after dusk. Signage and flaggers shall be provided and installed by the contractor to warn trail users of construction and to suggest an alternate route of travel (as required.)

B. Use of a flashing beacon is required if trail use is limited due to construction hazards after dusk. Signage and flaggers shall be provided and installed by the Contractor to warn users of construction and to suggest an alternate route of travel (as required.)

C. Vehicular Traffic

1. The contractor should not use equipment which could cause pavement damage (except in an emergency situation). In the event that damage occurs, the contractor is responsible for the replacement of all damaged areas.

2. The use of trails by motorized vehicles for authorized purposes should be limited to vehicles and equipment actually needed for the construction operation. Use of the trail and surrounding area for access and parking of vehicles is not permitted.

3. The trail is not to be used for loading operations or the stockpiling or storage of construction materials without the written approval of the project representatives.

D. In the event that the trail is temporarily blocked by motor vehicles or construction equipment, safety cones must be placed in front of and behind the vehicle or a flagger provided. A “CONSTRUCTION AHEAD” sign must be placed 200’ away from the unit in each direction of the trail (including access routes). A safe route of travel for trail users must be maintained around the vehicle. If this is not possible, flaggers are required to direct users when it is safe to proceed.

E. Submittals: Contractor shall submit the following for approval prior to fabrication and installation of signs:

1. A plan indicating location of signs, barricades and fencing for each phase of the project.

2. A drawing of each sign.

2.1 Signage

A. All signs shall be black letters on orange background, with reflective sheeting on .080” aluminum. If trail is blocked for more than five (5) days, the information provided on these signs must include the approximate dates and limits of construction and information regarding alternative routes.

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TRAIL CONSTRUCTION SIGNAGE & BARRICADES

01500-2

B. Detour Signage – All detour signage shall be as shown on the detour plan in the construction documents.

2.2 Barricades

A. All barricades located at the ends of trails to prevent access during construction shall be

MUTCD Type III barricades with reflective striping and a minimum width of 8’.

B. All other barricades shall be sized as noted on the proposed detour plan.

2.3 Fencing

A. Fencing for restricting access at the ends of closed trails - Section 01520 Construction

Fencing.

3.1 Minor Trail Construction or Rehabilitation (Resulting in disturbance of less than fifty (50) linear feet and less than five (5) days.)

A. The contractor must allow a safe and well-defined “run around” path for users during the construction. A minimum width of 4’ must be maintained clear of signs, equipment, stockpiled materials, vehicles, etc.

B. Run around detours across grass areas may be used for one day duration only.

C. Any trail surface affected (including access and staging areas) must be returned to its pre-construction condition (or better) by the end of the work day. The trail surface must be swept or washed as necessary to remove any foreign materials.

3.2 Major Trail Construction or Rehabilitation (Resulting in disturbance of five (5) days or more and/or more than fifty (50) linear feet, necessitating trail closure.)

A. When trail closure is necessary and a formal detour must be provided, provide barricades and fencing to prevent public access into work areas and provide signage to direct trail users to alternative routes. Work should be phased in a manner which provides minimal detour length at all times.

B. Detour signs shall be installed at each end of the project and where project is bisected by a street. Also install signs where other trails intersect with the project. Signs should be installed, at least one week (7days) prior to the beginning of construction.

C. Fencing shall be installed adjacent to trail barricades to prevent access to trails and adjacent open space areas.

PART 4 MAINTENANCE

4.1 Daily Inspections

A. The Contractor shall maintain all safety and signage elements in a safe and legible condition.

Contractor shall inspect all safety and signage elements on a daily basis and make repairs or additions the same day for the duration of the construction period.

PART 5 MEASUREMENT AND PAYMENT

5.1 Measurement & Payment

A. Measurement for payment shall be at the unit specified in the contract proposal and placed in accordance with the Drawings and Specifications or as otherwise directed by the Engineer.

B. Trail construction signage and barricades shall be paid for at the contract unit price as bid

SAND CREEK TRAIL IMPROVEMENT PROJECT

TRAIL CONSTRUCTION SIGNAGE & BARRICADES

01500-3 in the Proposal. The price bid in the Proposal shall include the cost of furnishing all labor, equipment, maintenance, daily inspections, and materials necessary for completing the number of signs and barricades listed in the proposal.

SAND CREEK TRAIL IMPROVEMENT PROJECT

WATER, SEDIMENT AND EROSION CONTROL

01510

PART 1 GENERAL

1.1 DESCRIPTION OF WORK

PART 2 PRODUCTS

2.1 MATERIALS

PART 3 EXECUTION

3.1 INSTALLATION

3.2 MAINTENANCE

3.3 REMOVAL

PART 4 MEASUREMENT AND PAYMENT

4.1 VEHICLE TRACKING CONTROL PAD

4.2 EROSION CONTROL BLANKET

4.3 REINFORCED SILT FENCE

4.4 STABILIZED STAGING AREA

4.3 CONCRETE WASHOUT AREA

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A. This work shall consist of temporary measures needed to control erosion and water pollution.

These temporary measures shall include, but not be limited to, berms, dikes, dams, sediment basins, fiber mats, netting, gravel, mulches, grasses, slope drains and other erosion control devices or methods. These temporary measures shall be installed at the locations where needed to control erosion and water pollution during the construction of the project, and as directed by the City, and as shown on the Drawings.

B. The Erosion and Sediment Control items presented in the Drawings serves as a minimum for the requirements of erosion control during construction. The Contractor has the ultimate responsibility for providing adequate erosion control and water quality throughout the duration of the project. Therefore, if the provided plan is not working sufficiently to protect the project areas, then the Contractor shall provide additional measures as required to obtain the required protection. The Contractor shall include in his bid price(s) for erosion control a minimum of all items referred to in the plans and any additional items that may be needed to control erosion and water pollution.

C. Contractor must comply with City of Aurora Erosion Control Specification Standards as found in City of Aurora Rules and Regulations Regarding Stormwater (Quality) Discharge for Construction Activities, latest revision. Work to include the installation, daily inspection, and maintenance of all erosion and sediment control measures.

A. All Erosion and Sediment Control materials shall meet the requirements of City of Aurora Rules and Regulations Regarding Stormwater (Quality) Discharge for Construction Activities, latest revision.

The use of straw bales and recycled asphalt or concrete is not permitted.

3.1 Installation

A. All Erosion and Sediment Control measures shall be installed in accordance with the requirements of City of Aurora Rules and Regulations Regarding Stormwater (Quality) Discharge for Construction Activities, latest revision.

B. Installation of measures shown in the plans – Initial shall be completed and approved prior to any site disturbance.

B. Installation of measures identified in the plan – Final shall be completed at the earliest practicable time.

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3.2 Maintenance

A. The Contractor shall inspect all erosion and sediment control work on a daily basis and make repairs or additions as needed on the same day for the duration of the construction period.

3.3 Removal

A. Removal of Erosion and Sediment Control measures shall be in accordance with the requirements of City of Aurora Rules and Regulations Regarding Stormwater (Quality) Discharge for Construction Activities, latest revision, and as approved by the City. Perimeter control measures shall remain in place until final site stabilization has been achieved and is approved by the City.

4.1 Vehicle Tracking Control Pad

A. Measurement for payment shall be at the unit specified in the contract proposal and placed in accordance with the Drawings and Specifications or as otherwise directed by the Engineer.

B. Payment shall be at the unit price bid in the contract proposal and shall include the cost of furnishing all labor, materials and equipment necessary to complete the work and to maintain, replace, and remove the work as specified.

4.2 Erosion Control Blanket

A. Measurement for payment shall be on the actual number of square yards of erosion control blanket placed in accordance with the Drawings and Specifications or as otherwise directed by the Engineer.

4.3 Sediment Control Logs

A. Measurement for payment shall be the actual number of linear feet of sediment control log placed in accordance with the Drawings and Specifications or as otherwise directed by the Engineer.

4.4 Concrete Washout Area

A. A. Measurement for payment shall be at the unit specified in the contract proposal and placed in accordance with the Drawings and Specifications or as otherwise directed by the Engineer.

SAND CREEK TRAIL IMPROVEMENT PROJECT

CONSTRUCTION FENCING

01520

01520

PART 1 GENERAL

1.11 DESCRIPTION

PART 2 PRODUCTS

2.1 GENERAL

2.2 FENCING

2.3 BARRICADES AND SIGNS

2.4 LUMBER

2.5 BARRIER TAPE

PART 3 EXECUTION

3.1 PROTECTION OF PUBLIC

3.2 BARRIER TAPE

3.3 REMOVAL

PART 4 MEASUREMENT AND PAYMENT

4.1 MEASUREMENT AND PAYMENT

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SECTION 01520

1.1 Description

A. The work of this section consists of furnishing, installing, moving/changing and maintaining barriers to protect existing facilities, natural features and the public from construction operations.

2.1 General

A. Material may be new or used, and shall be suitable for intended purpose. Fences and barriers shall be structurally adequate and neat in appearance.

2.2 Fencing

A. Type A - Rope and T-posts: Yellow, 3/8” nylon rope, metal T-posts, zip ties; set at 20’ OC maximum B. Type B - Temporary Chain Link Fencing: 6’ high, temporary chain link fencing – includes fabric, posts, rails, sand bags, etc.

2.3 Barricades and Signs

A. ANSI D6. 1-78, “Manual on Uniform Traffic Control Devices” (MUTCD), Part VI.

2.4 Lumber

A. Free of nails, large knot holes and splinters.

2.5 Barrier Tape

A. Banner Guard, imprinted with “CAUTION: CONSTRUCTION AREA”, manufactured by Reef Industries, Inc., Houston Texas, or approved equal.

3.1 Protection of Public

A. Fence, barricade, or otherwise block off the immediate work area per plans to prevent unauthorized entry to the work area.

B. Erect and maintain barricades, lights, danger signals, and warning signs per plans and in accordance with

ANSI D6. 1-78.

C. Illuminate barricades and obstructions at night; keep safety lights burning from sunset to sunrise. (if required by City) D. Adequately barricade and post open cuts in or adjacent to thoroughfares.

E. Protect pedestrian traffic by guardrails or fences.

F. Cover pipes, hoses, and power lines crossing sidewalks and walkways with troughs using beveled edge boards.

G. Erect and maintain sufficient detour signs at road closures and along detour routes.

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3.2 Barrier Tape

A. Install where directed by Project Manager. Keep a minimum of two rolls on site at all times.

3.3 Removal

A. Completely remove all fencing when final punch list is complete and when approved by Project Manager.

4.1 Measurement and Payment

A. Measurement for payment shall be at the unit specified in the contract proposal and placed in accordance with the Drawings and Specifications or as otherwise directed by the Engineer.

B. Payment shall be at the linear foot price bid in the contract proposal and shall include the cost of furnishing all labor, materials and equipment necessary to complete the work and to maintain, replace and remove the construction fence as specified.

Morris Heights FLG #3 & MBT #01

TREE PROTECTION

01530

TREE PROTECTION

01530

PART 1 GENERAL

1.1 Description of Work

1.2 Definitions

PART 2 PRODUCTS

2.1 Materials

PART 3 EXECUTION

3.1 Soil Excavation Around Trees

PART 4 MEASUREMENT AND PAYMENT

4.1 Measurement and payment

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01530 - 1

01530

A. This work shall consist of taking the necessary precautions to protect any trees within the project.

1.2 Definitions

A. Tree Protection Zone: The Tree Protection Zone is a critical root zone and shall be a disturbance free area. A Tree Protection Zone shall be established for each tree 4” in caliper and greater that is to be preserved and protected by the City of Aurora Policy on Preservation of Existing Trees. Caliper shall be defined as the maximum diameter of the trunk 4.5’ above the ground. The Tree Protection Zone shall be a circle with a radius relative to the caliper of the tree. The radius shall be one linear foot in length for each inch of tree caliper and the center of the circle shall be the trunk of the tree. (For Example: If the tree has a trunk twelve inches (12”) in diameter then the disturbance free zone shall have a radius of twelve feet (12’) from the center of the tree.)

B. Disturbance Trenching: Disturbance trenching shall be defined as any changes in grade either cut or fill, material or equipment storage, equipment movement, compaction or paving.

A. “Orange” safety fencing is required for use in tree protection and is to be installed around the tree protection zone of all trees designated for protection. Fencing shall be maintained daily, and remain in place until project completion. A minimum of five (5) metal T-stakes per tree shall be used to delineate the Tree Protection Zone.

3.1 Soil Excavation Around Trees

A. Equipment of any kind is prohibited from operation within the Tree Protection Zone of all trees

– this includes vehicle parking and foot traffic.

B. Stock piling of soil or materials is prohibited within the Tree Protection Zone of all trees.

C. Compacting of the soil is prohibited within the Tree Protection Zone of all trees.

D. Trenching and excavation is prohibited within the Tree Protection Zone of all trees, unless approved prior to construction.

E. Any root pruning that is approved within the Tree Protection Zone shall be performed with a sharp tool and a clean cut.

F. Roots shall not be exposed to the air for more than two to four (2-4) days, in order to avoid drying out and death.

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G. Limb damage is prohibited, unless approved prior to construction or as authorized by the City

Forestry Division. Pruning of interfering limbs shall be done prior to construction and must be accomplished by a company licensed to perform tree work within the City of Aurora. A list of authorized companies can be obtained from the City of Aurora Forestry Division.

H. Damage to the main trunk of the tree is prohibited. Damage greater than ten percent (10%) of the main trunk, not resulting in structural damage shall result in a fine based on the percentage of the circumference affected. Damage greater than thirty percent (30%) of the circumference of affecting structural integrity of the tree will result in a fine equal to the full-appraised value of the tree.

I. All concrete washout areas must be designated – they shall not flow into or across the Tree

Protection Zone.

J. If irrigation is interrupted for more than one week, trees will require supplemental watering methods. Water should be evenly distributed within the critical root zone. As a rule, ten (10) gallons of water per one inch (1”) of trunk diameter should be administered.

4.1 Measurement and Payment

A. Measurement for payment shall be at the unit specified in the contract proposal and placed in accordance with the Drawings and Specifications or as otherwise directed by the Engineer.

B. Payment shall be at the linear foot price bid in the contract proposal and shall include the cost of furnishing all labor, materials and equipment necessary to complete the work and to maintain, replace and remove the tree protection fence as specified.

SAND CREEK TRAIL IMPROVEMENT PROJECT

TRAFFIC CONTROL

01570

TRAFFIC CONTROL

01570

PART 1 GENERAL

1.1 Description of Work

1.2 Prior to Construction

1.3 During Construction

1.4 After Construction

1.5 Traffic Signals

PART 2 MEASUREMENT AND PAYMENT

2.1 Measurement And Payment

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TRAFFIC CONTROL

01570 - 1

TRAFFIC CONTROL

01570

Traffic Control shall consist of furnishing and maintaining all barricades, signs, traffic control devices, detours, temporary pavement, or personnel to conduct pedestrian, bicycle and vehicular traffic safely through or around the construction site in conformity with these specifications and the Manual on Uniform Traffic Control Devices (MUTCD) and the Colorado Supplement thereto.

1.2 Prior to Construction

A. The Contractor shall contact Traffic Operations Division at least seven (7) days before starting work on any arterial street, or within four hundred (400) feet of a traffic signal, to secure locations of any underground facilities. The Contractor shall be responsible for the cost of repair to any such facilities damaged by his/her construction. Phone Numbers are:

Traffic Operations Division 303-326-8200, Signal Locates 303-326-8200, Fax 303-326-8238.

B. The Contractor shall submit a traffic control plan approved by the Project Manager to Traffic

Engineering through the Permit Center process for review and approval at least ten (10) business days before the start of work. Failure to provide a traffic control plan or obtain permission from Traffic Engineering may result in immediate work stoppage. If the Contractor desires to revise an approved traffic control plan, the revision proposal shall be submitted to Traffic Engineering through the Permit Center Process for review.

C. Unless otherwise indicated on the plans, when construction is likely to interfere with or damage an official traffic control sign or device, the Contractor shall notify Traffic Operations Division seven (7) days in advance to have the sign or device retrieved or relocated. Once construction has been completed, Traffic Services shall require two working days notice for resetting the signs or devices prior to opening the project to traffic. The Contractor will be responsible for any repairs or replacement of any sign or device missing or damaged.

1.3 During Construction

A. The Contractor shall not interfere with traffic 5:00 p.m. to 7:00 a.m. for local streets and 3:30 p.m. to 8:30 a.m. for collector/arterial streets on weekdays or at any time on weekends or holidays without permission from Traffic Engineering.

B. The Contractor shall provide a traffic control person, other than the Project Superintendent, when called for in the plans or in the special conditions, or when determined necessary by Traffic Engineering. The Traffic Control Person shall have:

1. Traffic control as his/her primary duty

2. Carry a valid Traffic Control Supervisor certificate and a valid Flagging certificate

(recognized by the Colorado Department of Transportation)

3. Be on the job site at all times during working hours. Check all traffic control devices before and after the a.m. and p.m. rush hours, and periodically throughout the remainder of the day and night;

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TRAFFIC CONTROL

01570 - 2

4. Verify that all traffic control devices are in accordance with the Manual on Uniform Traffic Control Devices, including the Colorado Supplement, and that all traffic control devices are properly positioned and operating according to the…