Path 400 Trail Extension

PI Number: 0021223

City of Sandy Springs

Fulton County, Georgia

SPECIAL PROVISIONS

SECTION 107 – Legal Regulations and Responsibility to the Public (Included)

SECTION 108 – Prosecution and Progress (Included)

SECTION 150 – Traffic Control (Included)

SECTION 158– Training Program (Included)

SECTION 163 – Miscellaneous Erosion Control Items (See GDOT’s Website)

SECTION 165 – Maintenance of Temporary Erosion and Sedimentation Control Devices (See

GDOT’s Website)

SECTION 167 – Water Quality Monitoring (See GDOT’s Website)

SECTION 624 – Noise Barriers (Included)

SECTION 627 – Mechanically Stabilized Embankment Retaining Wall – Contractor Design

(Included)

SECTION 670 – Water Distribution System (Included)

SECTION 700 – Grassing (See GDOT’s Website)

Protection of Utility Interests – Colonial Pipeline Company

Original Date: April 8, 2020

DEPARTMENT OF TRANSPORTATION

STATE OF GEORGIA

SPECIAL PROVISION

PROJECT: PATH 400 Trail Extension

Fulton County, PI No. 0015023

Section 107 – Legal Regulations and Responsibility to the Public

Add the following to Subsection 107.23:

H. Protection of Ecological Resources

The following conditions are intended as a minimum to protect these species and suitable habitat during any activities that are in close proximity to the known or potential location(s) of these species.

1. All project personnel employed to work on this project shall be notified about the potential presence and appearance of the state listed bluestripe shiner (Cyprinella callitaenia) and Chattahoochee crayfish (Cambarus howardi) and that there are criminal penalties for killing, capturing, or selling these species in known violation of the Georgia Endangered Wildlife

Act of 1973. Pictures and habitat information will be provided at the preconstruction conference and shall be posted in a conspicuous location in the field Project office until such time Project construction has been completed and time charges have stopped.

2. The use of borrow sites or stockpiling of dirt within 200 feet of Perennial Stream 5/Nancy Creek or Perennial Stream 11 is prohibited. Stockpiled materials shall be placed at least 200 feet away from Perennial Stream 5 and Perennial Stream

11 to minimize potential for stormwater runoff into the stream. All disturbed soil and excavation spoil within 200 feet of

Perennial Stream 5 and Perennial Stream 11 shall be mulched daily or covered with erosion control mats.

3. Equipment staging and maintenance areas (particularly for oil changes) shall be located at least 200 feet from Perennial

Stream 5 and Perennial Stream 11 to minimize the potential for wash water, petroleum products, or other contaminants from construction equipment to enter Perennial Stream 5 or Perennial Stream 11.

4. Pesticides or herbicides shall not be used within 200 feet of Perennial Stream 5 and Perennial Stream 11. Fertilizer shall only be used while grassing graded areas to achieve site stabilization. Fertilizers shall be applied in accordance with product labeling instructions to minimize the potential for excess fertilizer to run-off into streams.

5. Material removed from erosion control devices during maintenance shall be place at least 200 feet from Perennial Stream

5 and Perennial Stream 11.

6. The Engineer shall be notified immediately if equipment or debris from construction or demolition is allowed to fall or be placed into Perennial Stream 5 or Perennial Stream 11. The Engineer in turn shall notify the State Environmental

Administrator, Georgia Department of Transportation, Office of Environmental Services at (404) 631-1101. All activity, with the exception of traffic control and erosion and sedimentation control, shall cease pending consultation by the

Department with the lead Federal Agency, US Fish and Wildlife Service, and/or Georgia Department of Natural Resources.

7. The Engineer shall be notified immediately in the event an erosion control failure allows discharge of sediment in

Perennial Stream 5 or Perennial Stream 11. The Engineer in turn shall notify the State Environmental Administrator, Georgia Department of Transportation, Office of Environmental Services at (404) 631-1101. All project activities shall cease, with the exception of necessary traffic control and erosion and sedimentation control activities, pending consultation

0021223

- Segment 2

107.23H Protection of State Protected Species Date: April 8, 2020 PI No. 0015023, Fulton County by the Department with the Lead Federal Agency, US Fish and Wildlife Service, and/or Georgia Department of Natural

Resources.

8. In the event any incident occurs that causes harm to the bluestripe shiner or Chattahoochee crayfish, the incident shall be reported immediately to the Engineer who in turn will notify the State Environmental Administrator, Georgia Department of Transportation, Office of Environmental Services at (404) 631-1101. All activity, with the exception of erosion and sedimentation control and traffic control, shall cease pending consultation by the Department with the Georgia Department of Natural Resources.

9. A log shall be kept detailing any incidents that cause harm or injury to the bluestripe shiner and Chattahoochee crayfish in the project until such time that Project construction has been completed and time charges stop. Following project completion, the log and a report summarizing any incidents that caused harm or injury to this species shall be submitted to the Engineer and to the Georgia Department of Transportation ecology submittals inbox

(ecology_submittals@dot.ga.gov). The email shall be formatted with the title “Incident Log: PI No. 0015023”. The

Department in turn shall provide copies of the report to the lead Federal Agency, and/or Georgia Department of Natural

Resources.

11. All costs pertaining to any requirement contained herein shall be included in the overall bid submitted unless such requirement is designated as a separate Pay Item in the Proposal.

0021223 mailto:ecology_submittals@dot.ga.gov mailto:ecology_submittals@dot.ga.gov

Updated: 1/6/2017

Bluestripe Shiner (Cyprinella callitaenia)

Description:

• Dusky olive back with silvery sides

• Blueish-black stripe runs from gills to tailfin

• Males develop white spots on fins

• Reaches 3 to 4 inches in length

Habitat:

• Large streams or rivers with swift currents

• Mostly found in areas with small gravel or sandy substrates

Protected By: Georgia Endangered Wildlife Act of 1973 (O.C.G.A § 27-3-130)

Capturing, killing or selling this animal may result in criminal penalties.

See Special Provision 107.23 H.

STATE PROTECTED SPECIES ON THE PROJECT

Fishes of Alabama and the Mobile Basin

Updated: 1/5/2017

Chattahoochee Crayfish

(Cambarus howardi)

Description:

• Adults reach a maximum size of 1 ¼ inches

• May appear bronze-green on top with bluish-green claws

• Tail fades from green to yellow-brown

• Orange-brown bands may be present at the joints of appendages including claws, legs, and tail

Habitat:

• Found in clear, free flowing water, especially in shallow riffles with quickly flowing water

• During the day, specimens often seek shelter under rocks

• May be found in a range of stream sizes, from smaller tributary streams to the larger rivers

Protected By: Georgia Endangered Wildlife Act of 1973 (O.C.G.A § 27-3-130)

STATE PROTECTED SPECIES ON THE PROJECT

Capturing, killing or selling this animal may result in criminal penalties.

See Special Provision 107.23 H.

February 8, 2023

STATE OF GEORGIA

SPECIAL PROVISION

P.I. No.: 0015023

COUNTY: FULTON

SECTION 108 - PROSECUTION AND PROGRESS

Retain Sub-Section 108.08 as written and add the following:

108.08. Failure or Delay in Completing Work on Time

D. Restrictive Work Hours

1. Failure to re-open travel lanes as specified in Special Provision Section 150.6.A will result in the assessment of liquidated damages in the amount of $1,000.00, per hour or portion thereof.

The above rates are cumulative and are in addition to any Liquidated Damages which may be assessed for failure to complete the overall project

February 8, 2023

STATE OF GEORGIA

SPECIAL PROVISION

P.I. No.: 0015023

FULTON COUNTY

SECTION 150 – TRAFFIC CONTROL

Delete Subsection 150.6 and add the following:

150.6 Special Conditions:

A. Lane Closures

The Contractor shall not install lane closures, shoulder closures (if applicable), pace traffic or move equipment or materials that interferes with traffic on SR 400 or local side streets between the hours of 6:00 am to 9:00 am and 3:00 pm to 6:00 pm, Monday through Friday.

The Contractor shall coordinate all lane closures and construction access from county, city, and state roads and streets with the City of Sandy Springs, the City of Atlanta, and the Georgia Department of Transportation.

STATE OF GEORGIA

STANDARD SPECIFICATION

Section 158—Training Program

158.1 General Description

The Contractor’s Equal Employment Opportunity Affirmative Action Program includes on-the-job training aimed at fully qualifying trainees in the trade or job classification involved.

The Proposal specifies the number of trainees to be trained under this Specification.

This training specification is in implementation of 23 USC 140(a). As a part of the Contractor’s Equal Employment

Opportunity Affirmative Action Program, provide training as specified in this specification.

158.1.01 Definitions

General Provisions 101 through 150.

158.1.02 Related References

A. Standard Specifications

General Provisions 101 through 150.

B. Reference Documents

Georgia On-the-Job Training Program Manual

158.1.03 Submittals

Submit an acceptable training program to the Department for review and approval within 30 days after the Notice to Proceed is issued. Failure to submit an acceptable training program, as determined by the Engineer, will result in the withholding of all Contractor progress payments

Specify the starting time for training in each of the classifications.

158.2 Materials

General Provisions 101 through 150.

158.2.01 Delivery, Storage, and Handling

General Provisions 101 through 150.

158.3 Construction Requirements

158.3.01 Personnel

A. Number of Trainees

If the Contract Work is subcontracted, determine how many trainees, if any, the Subcontractor shall train. However, retain the primary responsibility for meeting the training requirements of this Specification. Ensure that this Specification applies to the Subcontract.

Where feasible, have 25 percent of the apprentices or trainees in each occupation be in their first year of apprenticeship or training.

Distribute the number of trainees among the work classifications based on needs and the availability of trainees in each classification (within a reasonable area of recruitment).

B. Types of Trainees in Attendance

1. Construction Crafts. Provide training in the construction crafts. Training may also be provided for lower-level management positions if training is oriented toward construction applications such as office engineers, estimators, time-keepers, etc.

2. Laborers. Training may be provided in the laborer classification if the training is meaningful and if significance is proven and approved by the Division Office.

3. Clerks and Secretaries. Do not provide training for clerk-typists or secretarial-type positions.

4. Minorities and Women. Conduct systematic and direct recruitment through public and private sources likely to yield minority and women trainees. Recruit minorities and women within a reasonable area of recruitment.

Demonstrate the steps taken to recruit minorities and women for training to comply with this Specification. This training commitment is not intended to nor will it be used to discriminate against any applicant for training, whether or not the applicant is a member of a minority group.

158.3.02 Equipment

General Provisions 101 through 150.

158.3.03 Preparation

Give each trainee a copy of the program that is followed during training. Provide each trainee with certification showing the type and length of training satisfactorily completed.

The State will approve of or accept the training program before beginning work on the classification covered by the training program.

158.3.04 Fabrication

General Provisions 101 through 150.

158.3.05 Construction

An employee who completes a training course or is employed as a journeyman cannot receive training in that area of expertise. Satisfy this requirement by including questions in the employee application or by using other means to disclose the trainee’s status. Keep records of the findings of each case.

Some off-site training is permissible provided the training is an integral part of an approved training program and does not comprise a significant part of the overall training.

158.3.06 Quality Acceptance

The selected training program approved by the Department and the Federal Highway Administration establishes the minimum length and type of training for each classification. The Department and the Federal Highway Administration will approve a program if it is calculated to meet Equal Employment Opportunity obligations and qualify the average trainee for journeyman status in a classification by the end of the training period.

Acceptable apprenticeship programs include:

Programs registered with U.S. Department of Labor

Programs registered with the Bureau of Apprenticeship and Training

Programs registered with a State apprenticeship agency recognized by the Bureau

Training programs approved but not necessarily sponsored by the U.S. Department of Labor, Manpower

Administration, Bureau of Apprenticeship and Training if administered in a manner consistent with the Equal

Employment obligations of Federal-Aid highway construction contracts

158.3.07 Contractor Warranty and Maintenance

Maintain and furnish periodic records (form FHWA 1409) that document performance under this Specification.

158.4 Measurement

Except as otherwise noted in Subsection 158.4.01, “Limits,” the Contractor will be reimbursed 80 cents for every hour an employee is trained in an approved training program on this Contract. If the number of trainees exceeds the number specified in this Training Specification, reimbursement will be at the Engineer’s approval. The Contractor will receive the reimbursement even though additional training program funds are received from other sources (only if the other sources do not specifically prohibit the Contractor from receiving other reimbursement).

The Contractor will be not receive any progress payment under any one of these conditions:

Failure to provide an acceptable training program to the Department within 30 days after the Notice to Proceed is issued

The Contractor fails to provide the required training

The trainee fails to be hired as a journeyman at the fault of the Contractor

The Contractor fails to show good faith to meet the requirements of this Training Specification

158.4.01 Limits

The Contractor is credited for each trainee that is employed on the Contract Work and that is currently enrolled or becomes enrolled in an approved program. Reimbursement for such trainees is as follows:

1. The Contractor receives reimbursement for off-site training only if trainees are concurrently employed on a Federal-aid project and the Contractor does one or more of the following:

Contributes to the cost of the training

Provides instruction to the trainee or pays the trainee’s wages during the off-site training

2. The Contractor provides acceptable training to the number of trainees specified on the Contract.

3. A trainee begins training on the project as soon as feasible after the work that uses the trained skill has begun.

4. The trainee remains on the project as long as training opportunities exist in the work classification or until the trainee has completed the training program. Trainees do not need to be employed for the entire length of the

Contract.

5. Trainees are paid at least 60 percent of the appropriate minimum journeyman’s rate specified on the Contract for the first half of the training period, 75 percent for the third quarter of the training period, and 90 percent for the last quarter of the training period.

If apprentices or trainees in an approved existing program are enrolled as trainees in the same classification on this

Project, the appropriate rates approved by the Departments of Labor or Transportation for the existing program shall apply to the trainees.

158.5 Payment

Payment will be made under:

Item No. 158 Training hours $0.80 per hour

158.5.01 Adjustments

November 1, 2017

STATE OF GEORGIA

SPECIAL PROVISION

Section 624— Noise Barriers

Delete Section 624 and substitute the following:

624.1 General Description

This work includes furnishing and installing a noise barrier wall, single and double steel doors and concrete pads according to this Specification and conforming to the locations, dimensions, lines, grades, and material type shown on the Plans.

Types of noise wall material include the following:

Type A Concrete masonry units

Type B Interlock steel panels

Type C Precast concrete panels

Type D Treated timber panels

Type F Glass reinforced thermoset composite structural panels

Type G Precast autoclaved aerated concrete (PAAC) panels

Type H Absorptive panels

Type I Reflective panels

If a material type is not specified elsewhere in the Contract, then the noise barrier walls shall be constructed using precast concrete panels. Interlocking steel panels shall be used where a lighter weight material is necessary such as on bridges and retaining walls. A decision to use a noise barrier wall material other than precast concrete panels or interlocking steel panels, as noted above, will require written approval from the GDOT Chief Engineer.

624.1.01 Definitions

General Provisions 101 through 150.

624.1.02 Related References

A. Standard Specifications

Section 106—Control of Materials

Section 201—Clearing and Grubbing Right-of-Way

Section 205—Roadway Excavation

Section 206—Borrow Excavation

Section 208—Embankments

Section 210—Grading Complete

Section 500—Concrete Structures

P.I. No. 0015023 Path 400 Trail Extension

Section 624—Noise Barriers

Section 520—Piling

Section 700—Grassing

Section 702—Vine, Shrub, and Tree Planting

Section 865—Manufacture of Prestressed Concrete Bridge Members

Section 885—Elastomeric Bearing Pads

B. Referenced Documents

GDT 7

GDT 20

GDT 21

GDT 24a

GDT 24b

GDT 59

GDT 67

QPL 42

QPL 53

QPL 90

Federal Specification QQ-S-763-C

AASHTO ASTM

M 31/M 31M

M 32/M 32M

M 111/M 111M

M 270/M 270M

A 153/153M

A 366

A 526

A 568

A 569

A 572

A 591

A 653/653M

A 792/792M

B 695

B 766

C 1693

D 638

D 695

D 790

D 792

D 2092

D 2583

E 90

G 154

624.1.03 Submittals

Submit Shop Drawings to the Department on 12” by 18” (305mm by 457mm) or 11” by 17” (279mm by 432mm) plan sheets along with a portable document format (pdf) electronic file.

A. Noise Barrier Wall

Submit sketches and other data, that either verifies the wall will fit the final field conditions or indicates where revisions are necessary, to the Engineer for review and approval. Submit this information prior to the creation of noise barrier wall shop drawings.

Prepare Shop Drawings for each Noise Barrier wall.

Show all details necessary for field erection. The minimum requirements are:

Complete elevation view showing the top and bottom elevations, the required wall envelope, the roadway grade, top of side barrier, top and bottom of footing of side barrier and ground line at the wall.

Diameter and depth of caissons at each post

Post size

Complete plan view with dimensions, stations and offset

1. Type A, B, C, D, F, G and I:

Have the manufacturer certify to the Department that a specimen of the proposed barrier meets or exceeds a minimum weighted sound transmission loss of 20 dBA. Furnish test results for barrier material types (except Type C). The transmission or loss results must be based on the generalized truck spectrum when tested according to

ASTM E 90.

Have the manufacturer certify to the Department that a specimen of the proposed noise barrier meets or exceeds a minimum wind load of 80 mph / 28 psf (129 kmh / 1,341 Pa).

2. Type H:

Provide manufacturer certification to the Department that a specimen of the proposed barrier meets or exceeds a minimum noise reduction coefficient (NRC) of 0.8 and a minimum sound transmission class (STC) of 30 when tested according to ASTM C423.

Have the manufacturer certify to the Department that a specimen of the proposed noise barrier meets or exceeds a minimum wind load of 80 mph / 28 psf (129 kmh / 1,341 Pa).

B. Steel Doors

Prepare Shop Drawings for a Single Steel Door and a set of Double Steel Doors.

Show all details necessary for general construction, configurations, jointing methods, reinforcement, and anchorage meeting the following requirements:

Double steel exterior fire doors – 96 in (2,238 mm) height by 36 in (914 mm) width with latch bolt throws with two adjoined concrete pads - 18 ft (5.49 m) length by 4 ft (1.22 m) width by 6 in (152 mm) depth concrete pad and 10 ft (3.05 m) length by 4 ft (1.22 m) width by 6 in (152 mm) depth concrete pad

Single steel exterior door –84 in (2,134 mm) height by 36 in (914 mm) width with latch bolt throws with two adjoined concrete pads - 10 ft (3.05 m) length by 4 ft (1.22 m) width by 6 in (152 mm) depth concrete pad and 4 ft (1.22 m) length by 4 ft (1.22 m) width by 6 in (152 mm) depth concrete pad

Latch bolt throws - 38 in (965 mm) to centerline of door knobs from top of finished concrete pad.

624.2 Materials

Ensure other materials not listed herein meet the requirements of the appropriate Specification to which they pertain.

A. Type A

Concrete-Class A Hollow Load Bearing Concrete Masonry Units (Concrete Block) ASTM C 90, Grade N-I or N-II

Section 500

Mortar Section 834

B. Type B

1. Interlocking Steel Panels

Use cold formed configured steel panels that meet these requirements:

a. Use steel sheet conforming to ASTM A 653/653M or ASTM A 792/792M Structural Steel (SS) Grade 50 Class 2 with a minimum thickness of 0.029 inches (0.74 mm)

b. Has a male-female rib that provides a friction interlock connection with adjacent panels or is joined adequately according to the manufacturer’s specifications

c. Provides sufficient friction interlock connection strength to support its own weight without using fasteners when connected to another panel and held in a vertical or horizontal position

d. Use a panel size and shape shown on the Plans or an alternate approved by the Engineer.

e. Coat (galvanize) the panels with either a G90 (Z275) weight of zinc according to ASTMA 653/653M or an AZ50 (AZM150) weight of 55% aluminum-zinc alloy according to ASTM A 792/792M.

2. Protective Color Coating

Use one of the following coatings:

a. System A—The coating is polyvinylidene fluoride (70 percent resin, minimum enamel, PVF2).

1) Apply the coating system (including primer) at a total minimum film thickness of 1 mil (0.03 mm) per coated side.

2) Cure the polyvinylidene fluoride film to at least 0.8 mil (0.02 mm) film thickness.

b. System B—The coating is polyvinyl fluoride plastic film (PVF1) and has a thickness of at least 1.5 mils (0.04

mm) coated on both sides.

1) Have the coating applied at the factory to thoroughly cleaned and pretreated galvanized steel according to ASTM D 2092, Method F.

2) Laminate the coating to the galvanized steel using heat and adhesive to form a uniform and durable coating pigmented to obtain optimum color performance.

3) Use a color from the Federal Standard Color Number indicated on the Plans. Ensure that caulking is color pigmented to match the wall color specified.

3. Post

Use post for steel walls with these features:

a. Hot rolled shape conforming to AASHTO M 270/M 270M GR 36/GR 250

b. Hot-dip galvanized by an approved galvanizer as listed on QPL-53 and in accordance with AASHTO M 111/M 111M

c. Coating that weighs at least 2 ounces/ft2 (610 g/m²) on all sides

d. Each post requires pre-inspection by the Office of Materials & Testing as evidenced by a GDT stamp affixed near one end of each post

4. Steel Flashing and Caps

a. Use flashing and caps for steel walls of the same material and color coating as the panels. Fasten steel flashing and caps with self-tapping screws. Ensure that A-1 screws are Class #410 Stainless Steel and conform to Federal Specification QQ-S-763-C, or are cadmium coated according to ASTM B 766.

5. Fasteners

a. Attach panels to posts using a powder-actuated fastening system. Ensure fasteners are stainless steel or hot-dip galvanized as per ASTM A 153 Class C or have a mechanically deposited zinc coating as per ASTM B 695 Class 50.

C. Type C

1. Use precast concrete panels meeting the following requirements:

Class AA Concrete or SCC Concrete Section 500

Reinforcing AASHTO M 31/M 31M and M 32/M 32M

Piling-Galvanized Steel Section 520 and AASHTO M 111/M 111M

Elastomeric Bearing Pads Section 885

If SCC is used the following shall be met: wet/cement ratio 0.40 min 3500 psi Spread Slump 24” ± 2”, Air Entrainment – min 3.5% to max 6.5%

2. Use hot-dip galvanized piling, bolts, and fittings when the barrier rests on another concrete structure.

D. Type D

1. Use treated timber panels meeting the following requirements:

Noise Barrier Walls See QPL 90

Class A Concrete Section 500

Lumber and Timber Section 860

Preservative Treatment of Timber Products Section 863

E. Type F

1. Structural Plank: Use continuous glass fiber reinforced structural planks meeting the following requirements:

a. Constructed of a durable, UV resistant, flame retardant, thermosetting composite material

b. Resistant to degradation from ozone, hydrocarbons, and freeze/thaw cycling

c. Matches the Federal Standard Color Number indicated on the Plans

d. Meets the following minimum mechanical properties:

PROPERTY MINIMUM VALUE TEST METHOD

Flexural Modulus 2,200,000 psi (15200 MPa) ASTM D 790

Flexural Strength 70,000 psi (480 MPa) ASTM D 790

Tensile Strength 65,000 psi (450 MPa) ASTM D 638

Tensile Modulus 4,500,000 psi (31000 MPa) ASTM D 638

Elongation 1.5% ASTM D 638

Compressive Strength 60,000 psi (410 MPa) ASTM D 695

Barcol Hardness 50 ASTM D 2583

Specific Gravity 1.86 ASTM D 792

2. Filler: Use either hollow structural planks or planks filled with a recycled tire rubber compound comprised of sorted and graded ground tire rubber (0.25 + 0.025 inch (6.4 + 0.6 mm)).

3. Flashing and Caps: Use flashing and caps of the same material and color as the panels.

4. Caulking: Use color pigmented caulking matching the wall color specified.

5. Posts: Use posts fabricated from hot rolled shapes conforming to AASTHO M 270/M270 M, GR 36/ GR 250, and hot dip galvanized in accordance with AASHTO M 111/M 111M, except coating weight shall be a minimum of 2.0 oz/ft2 (600 g/m2) on all sides.

6. Other Materials: Use materials meeting the requirements of the appropriate Section in the Specifications to which they pertain.

F. Type G

1. Precast Autoclaved Aerated Concrete (PAAC) Wall Units: Use PAAC wall units cast from a mixture of Portland cement, fine aggregate, water, gypsum, lime, and an expansion agent. After setting, and before hardening, the PAAC is machine cut to the required size, then steam-cured under pressure in an autoclave. Use PAAC that meets the following physical requirements:

a. Has a minimum average compressive strength of 725 psi (5000 kPa) when three specimens are tested in accordance with ASTM C 1693, with no single specimen having a compressive strength of less than 580 psi (4000 kPa).

b. Has a maximum shrinkage of 0.02% when tested in accordance with ASTM C 1693

c. Has a dry bulk density between 34 lb/ft3 (544 kg/m3) and 41 lb/ft3 (656 kg/m3) when tested in accordance with

ASTM C 1693

2. Reinforcing: Use reinforcing conforming to AASHTO M31/M 31M or M32/M 32M.

3. Galvanized Steel Support: Use supports as shown on the Plans.

4. Welds: Use welds as shown on the Plans.

5. Coatings: Use only approved coating systems on all exposed surfaces, including steel supports. Use the same topcoat color on both the PAAC panels and the steel supports. Submit independent laboratory test results for 1500 hours of accelerated weathering in accordance with ASTM G 154. Submit results that show ratings of at least 9 in the following categories: color change, chalking, checking, cracking, blistering, flaking and rusting. Submit a certification stating that the PAAC topcoat is graffiti resistant.

G. Type H

1. Noise Absorptive Panels

a. Constructed of a durable lightweight, UV resistant, flame retardant material and be able to resist a wind load of 80 mph / 28 psf (129 kmh / 1,341 Pa). Provide manufacturer certified wind load test report.

b. Resistant to degradation from ozone, hydrocarbons, and freeze/thaw cycling.

c. Matches the Federal Standard Color Number 16360(T-ROCK GREEN) or equivalent.

d. Free draining to prevent moisture buildup and possible corrosion.

2. Post

a. Fabricated from steel conforming to the requirements of ASTM A572 GR50/A572M GR 345.

b. Hot-dip galvanized according to AASHTO M 111/M 111M, with a minimum coating weight of 2.0 oz/ft2 (600 g/m2) on all sides.

c. Galvanized after fabrication.

3. Anchor bolts, nuts, washers and base plates

a. Use anchor bolts, nuts and washers meeting the requirements of Subsection 852.2, or ASTM F1554 Grade 36 (F1554M), A563 (A563M) and F436 (F436M), except use rolled threads meeting 8 UN/ 8UNR thread profile according to ANSI B1.1. Use bolts with Class 2A threads, and nuts with class 2B threads. Galvanize all components in accordance with ASTM A123/A123M or A 153/A 153M, whichever is applicable.

b. Use galvanized base plates conforming to ASTM A709 Grade 36.

4. Other Materials

a. Use materials meeting the requirements of the appropriate Section in the Specifications to which they pertain.

H. Type I

1. Noise Reflective Panels

a. Constructed of a durable lightweight, UV resistant, flame retardant material and able to resist a wind load of 80 mph / 28 psf (129 kmh / 1,341 Pa). Provide manufacturer certified wind load test report.

b. Resistant to degradation from ozone, hydrocarbons, and freeze/thaw cycling.

c. Matches the Federal Standard Color Number 16360 (T-ROCK GREEN) or equivalent.

d. Free draining to prevent moisture buildup and possible corrosion.

2. Post

a. Fabricated from steel conforming to the requirements of ASTM A572 GR50/A572M GR345.

b. Hot-dip galvanized according to AASHTO M111/M 111M, with a minimum coating weight of 2.0 oz/ft2 (600 g/m2) on all sides.

c. Galvanized after fabrication.

3. Anchor bolts, nuts, washers and base plates

a. Use anchor bolts, nuts and washers meeting the requirements of Subsection 852.2, or ASTM F1554 Grade 36 (F1554M), A563 (A563M) and F436 (F436M), except use rolled threads meeting 8 UN/8 UNR thread profile according to ANSI B1.1. Use bolts with Class 2A threads, and nuts with class 2B threads. Galvanize all components in accordance with ASTM A 123/A123M or A153/A 153M, whichever is applicable.

b. Use galvanized base plates conforming to ASTM A709 Grade 36.

4. Other Materials

a. Use materials meeting the requirements of the appropriate Section in the Specifications to which they pertain.

I. Single and Double Steel Doors

Ensure materials meet the following:

1. Hot Rolled Steel Sheets and Strip: Commercial quality carbon steel, pickled and oiled, complying with ASTM A- 569 and ASTM A-568.

a. Cold-Rolled Sheets: Commercial quality carbon steel, complying with ATM A-366 and ASTM A-568.

b. Galvanized Steel Sheets: Zinc-coated or Zinc-Iron alloy-coated carbon steel sheets of commercial; quality, Complying with ASTM A526, with ASTM A653, G-60 zinc coating, mill phosphatized. Use for all exterior units.

c. Supports and Anchors: Fabricate of not less than 18 gauge galvanized sheet steel.

d. Inserts, Bolts and Fasteners: Manufacturer’s custom units, except hot-dip galvanized items to be built into exterior walls, complying with ASTM A-153, Class C or D as applicable.

2. Protective Color Coating

Use one of the following coatings:

a. System A—The coating is polyvinylidene fluoride (70 percent resin, minimum enamel, PVF2).

1) Apply the coating system (including primer) at a total minimum film thickness of 1 mil (0.03 mm) per coated side.

2) Cure the polyvinylidene fluoride film to at least 0.8 mil (0.02 mm) film thickness.

b. System B—The coating is polyvinyl fluoride plastic film (PVF1) and has a thickness of at least 1.5 mils (0.04

mm) coated on both sides.

1) Have the coating applied at the factory to thoroughly cleaned and pretreated galvanized steel according to

ASTM D 2092, Method F.

2) Laminate the coating to the galvanized steel using heat and adhesive to form a uniform and durable coating pigmented to obtain optimum color performance.

3) Use a color from the Federal Standard Color Number indicated on the Plans.

624.3 Construction Requirements

624.3.01 Construction

Perform the following work according to the Specifications:

A. Clearing and Grubbing

When necessary, clear and grub according to Section 201 as applicable.

B. Excavation, Borrow, Embankment

Perform excavation, borrow, and embankment according to Section 205, Section 206, Section 208, or Section 210. The scope and dimensions of the work are shown on the Plans.

C. Grassing

Perform grassing according to Section 700, as specified on the Plans.

D. Vine, Shrub, and Tree Planting

Plant vine, shrub, and trees according to Section 702 as specified on the Plans.

E. Miscellaneous Construction Items

When items are shown on the Plans but are not covered in this Specification, the Plans and Standard Specifications to which they pertain govern the work.

F. Walls, Single and Double Steel Doors

Follow these requirements to construct each type of wall:

1. Type A Wall

When using hollow load bearing concrete masonry units (concrete block) to construct the walls, work according to the notes, details, and dimensions on the Plans, including footings, reinforcement, and plaster coat when required.

2. Type B Wall

a. Install steel noise barrier walls according to the manufacturer’s recommendations and Plan details.

b. Repair cut, scratched, or marred surfaces according to the manufacturer’s recommendations.

3. Type C Wall

When using precast concrete panels:

a. Cast panels at a precast concrete plant listed on QPL 9 or at a precast facility approved by the Engineer.

b. Have the Engineer determine panel acceptability from the compressive strength of cylinders made and cured the same as the panels and from inspection during manufacture.

Have the panel manufacturer furnish facilities and assistance to sample and test quickly and satisfactorily.

c. Cast the panels on a steel surface with steel side forms.

d. Place concrete in each panel without interruption. Consolidate the concrete using vibrators supplemented by hand tamping and rodding to force the concrete into the corners of the forms to eliminate stone pockets, cleavage planes, and air bubbles.

e. Architectural finish required. Use the Ashlar Stone finish unless another architectural finish is specified.

Provide a similar architectural finish to the opposite side of the barrier unless noted otherwise in the plans.

f. Cure the panels as specified in Subsection 500.3.05.Z.1, “General Curing—Supplying Additional Moisture,” (wet cure) long enough for the concrete to develop the specified compressive strength.

1) Ensure that the curing period is at least 72 hours under normal summer temperature conditions. In colder weather extend the curing period, as directed by the Engineer

2) Protect the panels from freezing from the time the concrete is placed until curing is complete.

3) Instead of the wet cure method, steam cure the panels as specified in Subsection 865.2.01.B.2.g.(2) if desired.

g. Mark each panel with the date cast and the Inspector’s approval stamp.

NOTE: Even with the Inspector’s acceptance at the precast yard, panels can still be rejected at the erection point if they are damaged.

h. Erect the panels according to Plan details and dimensions.

Place bearing pads as shown in the Plans, and tighten the restraining bolts.

i. After erection is complete and before Final Acceptance of the Project, clean the noise barrier to remove dirt or stains.

4. Type D Wall

Install in accordance with manufacturer’s recommendations and plan details. Do not install walls with burns, discolorations, cracks, or other objectionable marks that would adversely affect the performance of the system.

5. Type F Wall

Install in accordance with manufacturer’s recommendations and Plan details. Do not install walls with burns, discolorations, cracks, or other objectionable marks that would adversely affect the performance of the system.

6. Type G Wall

a. Cast the PAAC panels in a precast facility approved by the Engineer.

b. Have the Engineer determine panel acceptability from the compressive strength of cylinders made and cured the same as the panels and from inspection during manufacture.

Have the panel manufacturer furnish facilities and assistance to sample and test quickly and satisfactorily.

j. Cast the panels on a steel surface with steel side forms. When an architectural finish is specified for one side of the barrier, provide a similar finish to the opposite side unless noted otherwise in the plans.

k. Place concrete in each panel without interruption. Consolidate the concrete using vibrators supplemented by hand tamping and rodding to force the concrete into the corners of the forms to eliminate stone pockets, cleavage planes, and air bubbles.

l. After machine cutting to the required size, cure the PAAC units by high-pressure steam autoclaving so that the units meet the physical requirements of Subsection 624.2.E.1.

m. Mark each panel with the date cast and the Inspector’s approval stamp.

NOTE: Even with the Inspector’s acceptance at the precast yard, panels can still be ejected at the erection point if they are damaged.

n. Erect the panels according to Plan details and dimensions.

o. After erection is complete and before Final Acceptance of the Project, clean the sound barrier to remove dirt or stains.

p. Use coatings that are approved by the Laboratory.

1) PAAC panels. Apply the coating with a sponge-textured roller in accordance with the manufacturer’s recommendations. Cover all exposed galvanized steel surfaces for protection from splattering. Apply the coating at a minimum thickness of 60 dry mils (1.5 mm). Apply the coating only when the ambient temperature is greater than 40 oF (4 oC) and rising. Do not apply any coating during rainfall or when rainfall is forecast overnight.

2) Galvanized Steel Supports. Apply a corrosion resistant coating by brush, roller, or airless spray in accordance with the manufacturer’s recommendations. Protect the adjacent PAAC surfaces from overspray.

Apply the coating at a minimum thickness of 2 dry mils (0.5 mm). Use a color that matches the PAAC final topcoat color. Apply the coating only when the ambient temperature and relative humidity fall within the limits stated by the manufacturer.

7. Type H Wall

Install in accordance with manufacturer’s recommendations and Plan details. Do not install walls with burns, discolorations, cracks, or other objectionable marks that would adversely affect the performance of the system.

Ensure to install panels with the absorptive portion facing the highway side.

8. Type I Wall

Install in accordance with manufacturer’s recommendations and Plan details. Do not install walls with burns, discolorations, cracks, or other objectionable marks that would adversely affect the performance of the system.

Ensure to install panels with the reflective portion facing the highway side.

9. All Walls

Before beginning earthwork on the Project, stake the noise barriers in the field and establish the final ground line elevations at the noise barrier walls.

After wall stake out data has been reviewed and approved by the Engineer per subsection 624.1.03, furnish these elevations to the supplier who will develop the shop plans per subsection 624.1.03.A.

a. Protect the final ground elevations established in the field for the duration of the Project. Do not adjust them without the Engineer’s approval.

b. Install noise barriers according to the Plans and Shop Drawings approved by the Engineer.

c. Secure joints and connections to be structurally sound with no visible openings for sound transmission. Ensure that vibration from metal barriers is not a secondary source of noise transmission.

d. Repair marred, chipped, scratched, or spalled barrier areas according to the manufacturer’s recommendations and as directed by the Engineer at the Contractor’s expense.

e. To substitute welded for fixed-bolt connections or vice versa on metal barriers and doors, meet these conditions:

1) Submit load calculations for the specific connection to be modified.

2) Use a safety factor of at least 3.0.

f. Place trench backfill for noise barrier construction according to Section 207. Use select material to backfill.

If the Engineer believes the trench is too narrow for compaction, backfill the trench excavation with concrete grout to the Engineer’s satisfaction. No additional compensation will be made for the concrete grout.

g. Dispose of excess excavation to the Engineer’s satisfaction.

h. Keep right-of-way fence scheduled to be salvaged in place until the noise barrier is constructed, or as long as the Engineer deems practical.

i. After erecting the noise barrier, leave the disturbed area in a finished condition at the Engineer’s direction and plant grass or sod.

j. Payment for establishing grass is described in Subsection 624.4.C, “Grassing.”

k. Ensure noise barrier meets these tolerances:

1) Vertical alignment for barriers and posts is:

0.5 in (15 mm) for noise barrier heights to 10 ft (3 m)

1 in (25 mm) for noise barrier heights to 20 ft (6 m)

1.5 in (40 mm) for noise barrier heights to 30 ft (9 m)

2) Horizontal alignment for noise barriers is close to that shown on roadway Plans.

3) Post spacings are within 0.5 in (15 mm) of their intended location.

l. For noise barriers built on top of earth berms, construct the berms of earthwork fill material and compact to 95% of the maximum density as determined by GDT 7, GDT 24a, GDT 24b or GDT 67, as applicable.

Determine in-place density according to GDT 20, GDT 21, or GDT 59, as applicable.

10. Single and Double Steel Doors

a. Install single and double steel doors according to the manufacture’s recommendations, the Plans, and Shop Drawings approved by the Engineer.

b. Furnish the elevations and locations to the supplier who will develop the Shop Plans, including a complete elevation view of each single and double steel door set indicating the locations and the concrete pad top elevation.

G. Graffiti-Proof Coating

This work includes providing graffiti-proof coating on both faces of concrete and masonry noise barriers, and single and double steel doors from the ground line to the top of the wall.

1. Materials. Use materials as noted on QPL 42.

2. Delivery and Storage. Ensure that the materials are delivered in manufacturer’s original containers with labels intact.

Store the materials out of the weather, in a single location, and as specified by the manufacturer.

3. Job Conditions. Protect the coating from the weather and work conditions as follows:

a. Apply the graffiti-proof coating in weather recommended by the manufacturer.

b. Mask, cover, or otherwise protect finished adjacent surfaces from damage that work in this Section could cause.

c. Protect finished coatings from staining, marring, and damages from other trades.

4. Quality Criteria. Use materials that are products of one manufacturer.

Use application equipment recommended or approved by the coating manufacturer for use on this Project. Use equipment in good operating condition.

5. Application. Ensure that the moisture content of surfaces to receive coating are within the limits recommended by the coating manufacturer.

a. Apply coating after applying a Type III finish of concrete, or after thoroughly cleaning the concrete block.

b. Apply coating at rate of 1 gal per 250 to 300 ft² (1 L per 6 to 7 m²). Apply three coats using a low-pressure spray.

c. Begin the coating application at the uppermost surfaces and work down.

d. Remove loose particles, dirt, grease, oil, and other foreign materials following application.

624.3.02 Quality Acceptance

The panels are subject to rejection if they fail to meet the requirements specified above. The following defects are also cause for rejection:

1. Defects from imperfect mixing and casting

2. Honeycombed or open texture

3. Exposed reinforcement

4. Failure to meet the required 3,500 psi (25 MPa) compressive strength at 28 days

624.4 Measurement

A. Clearing and Grubbing

Clearing and grubbing will not be measured separately for payment.

B. Excavation, Borrow, and Embankment

Excavation, borrow, and embankment will not be measured for payment unless an earthwork pay item is included in the contract.

The scope and dimensions of the work are as shown on the Plans.

C. Grassing

Grassing is not measured separately for payment unless shown on the Plans as a payment item.

D. Vine, Shrub, and Tree Planting

Vine, shrub, and tree planting shown on the Plans is measured according to Section 702.

E. Items Not Covered in This Specification

Items shown on the Plans but not covered in this Specification are measured for payment according to the applicable portions of the Specifications.

F. Walls

1. Type A Wall

Concrete masonry wall constructed of concrete masonry units (blocks), complete in place, is measured in square feet (meters) of area from end to end and from top of footing to top of wall, including solid top block or solid cap block.

2. Type B Wall

Steel wall is measured in square feet (meters) of wall surface installed before backfilling complete in place according to Subsection 109.01, “Measurement and Quantities.” There will be no separate measurement for posts, flashing, caps, concrete post embedment, or other incidental items required for construction.

3. Type C Wall

Precast concrete noise barriers are measured in square feet (meters) of wall surface before backfilling, including pile flanges, complete in place and accepted.

There will be no separate measurement pile, anchor bolts, plates, connections, neoprene bearing pads, connecting bolts, or other components of the noise barrier.

4. Type D Wall

Treated timber walls are measured in square feet (meters) of wall surface installed before backfilling.

No separate measurement is made for posts, caps, foundations, footings, hardware, timber treatment, pile, or over oards.

5. Type F Wall

Glass reinforced thermoset composite structural panel walls are measured in square feet (meters) of wall surface installed before backfilling complete in place in accordance with Section 109.

There will be no separate measurement for posts, top caps, bottom caps, side caps, flashing, strip seals, mounting brackets and hardware, concrete post embedment, or other incidental items required for construction.

6. Type G Wall

Precast Autoclaved Aerated Concrete walls are measured in square feet (meters) of wall surface installed before backfilling, complete in place and accepted.

There will be no separate measurement for steel supports or any other components of the noise barrier.

7. Type H Wall

Absorptive panel walls are measured in square feet (meters) of wall surface before backfilling complete in place and accepted. There will be no separate measurement for steel post or any other components of the noise barrier.

8. Type I Wall

Reflective panel walls are measured in square feet (meters) of wall surface before backfilling complete in place and accepted. There will be no separate measurement for steel post or any other components of the noise barrier.

624.5 Payment

The pay quantities will be the Wall Envelope quantities shown in the Plans unless the Engineer approves an adjusted wall envelope. In this case, the pay quantities will be the adjusted wall envelope quantities.

No additional compensation will be made for any additional material, equipment, design, or other items found necessary to comply with the project Specifications as a result of the Department's review except for changes made necessary by the survey verification required by Subsection 624.1.03 and Subsection 624.3.01.F.9, or other changes approved by the Engineer.

Include in the unit bid prices all costs necessary to comply with the requirements of this specification. No payment will be made for wall area outside of the adjusted wall envelope.

A. Clearing and Grubbing

The cost of clearing and grubbing is included in the Lump Sum Clearing and Grubbing Item for the Project. When clearing and grubbing is not shown as a payment Item, the cost is included in the overall Contract Price for the work covered in this Specification.

B. Unclassified Excavation and Borrow

No separate payment will be made for Excavation, Borrow and Embankment unless shown on the Plans as a separate Pay Item.

C. Grassing

No separate payment will be made for Grassing unless shown on the Plans as a separate pay item.

D. Vine, Shrub, and Tree Planting

When the Plans state that this Item will be paid for, payment will be made under Section 702.

E. Items Not Covered by This Specification

Items shown on the Plans to be paid for but are not covered by this Specification will be paid for according to the applicable portions of the Specifications.

F. Walls

1. Type A Wall

a. Concrete block walls will be paid for at the Contract Unit Price bid per square foot (meter). Payment includes but is not limited to: Concrete blocks of the thickness shown on the Plans for the wall and pilasters.

b. Plaster coat when required

c. Excavation for footings, concrete footings, and reinforcement when specified

d. Incidentals to complete the Item, including graffiti-proof coating

2. Type B Wall

Steel wall will be paid for at the Contract Unit Price bid per square foot (meter). Payment is full compensation for furnishing and installing materials, providing post and post embedment, and providing labor, equipment, and incidentals to complete the Work.

3. Type C Wall

Precast concrete noise barrier will be paid for at the Contract Unit Price bid per square foot (meter). Payment is full compensation for furnishing materials, including piling and attachments and for erecting the noise barrier, including graffiti-proof coating.

4. Type D Wall

Treated timber wall will be paid for at the Contract Unit Price bid per square foot (meter). Payment is full compensation for furnishing materials including concrete and steel and for erecting the noise barrier.

5. Type F Wall

Glass reinforced…