Project Specifications (1).pdf

CITY OF SAN ANTONIO

DEPARTMENT OF PUBLIC WORKS

SPECIFICATIONS

FOR

2027 Task Order Contract (TOC) for Flatwork and Street Improvements, Package 2

CITY MANAGER

ERIK WALSH

DIRECTOR OF PUBLIC WORKS/CITY ENGINEER

Art Reinhardt, PE, CFM

TABLE OF CONTENTS

SPECIFICATIONS: PAGE REFERENCE

Project Description PD-1 - PD-2

Governing Specifications, Special Provisions, Supplemental Specifications GSSP-1 – GSSP-5

And Special Specifications

Item No. 801 Tree and Landscape Protection 3 PAGES

Item No. 802 Tree Pruning, Soil Amending, and Fertilization 5 PAGES

Item No. 804 New Tree & Shrub Planting and Maintenance 4 PAGES

Special Provision to Item 100 Mobilization 1 PAGE

Special Provision to Item 101 Preparing Right-of-Way 1 PAGE

Special Provision to Item 500 Concrete Curb 1 PAGE

Special Provision to Item 502 Concrete Sidewalks 5 PAGES

Special Provision to Item 503 Asphaltic Concrete, 2 PAGES

Portland Cement Concrete, and Gravel Driveways

Special Provision to Item 505 Concrete Riprap 1 PAGE

Special Provision to Item 513 Removing, Relocating, and Replacing 5 PAGES

Mailboxes (bid items 513.1, 513.1A, 513.1B)

Special Provision to Item 520 Hydromulching 1 PAGE

Special Provision to Item 523 Adjusting of Vehicular and 2 PAGES

Pedestrian Gates

Special Provision to Item 530 Barricades, Signs and Traffic Handling 1 PAGE

Special Provision to Item 540 Temporary Erosion, Sedimentation & Water 1 PAGE

Pollution Prevention and Control

Special Provision to Item 556 Cast in Place Detectable Warning 1 PAGE

Surface Tiles

Special Provision to Item 804 New Tree & Shrub Planting and Maintenance 1 PAGE

Supplemental Specification 1 – Removing and Relocation Sign 1 PAGE

Supplemental Specification 2 – Elevated Sidewalk 3 PAGES

Supplemental Specification 3 – Sidewalk Drain Box (1/2 inch thick) 3 PAGES

Supplemental Specification 4 – Removal and Haul Off of 1 PAGE

Rock/Masonry Mailbox

Supplemental Specification 5 – Tree Removal (8” – 36” Diameter) 1 PAGE

Supplemental Specification 6 – Public Works Project Sign 1 PAGE

Supplemental Specification 7 – Police Officer 1 PAGE

Supplemental Specification 8 – Additional Mobilization 1 PAGE

Supplemental Specification 9 – Remove and Relocate Customer Shutoff Valve

1 PAGE

Supplemental Specification 10 – Remove and Relocate Backflow Preventer 1 PAGE

Supplemental Specification 11 – Remove and Replace Existing Sign Post 1 PAGE and Base, Re-Mount Existing Sign(s)

Supplemental Specification 13 – Back Curb 1 PAGE

Supplemental Specification 14 – Concrete Sidewalk Grinding 1 PAGE

(Vertical Distress Correction)

Supplemental Specification 15 – Vegetation and Shrub Removal 1 PAGE from Sidewalk Corridor

Supplemental Specification 16 – Tree Limb Trimming for 1 PAGE

Sidewalk Clearance

SARA319201 – Seeding for Erosion Control (Native Seed) 4 PAGES

Special Provision – Priority Site Completion Incentive/Disincentive 3 PAGES

Public Works Project Sign Detail 1 PAGE

Asphalt Repair & Curb Construction Details for Flatwork Only Projects 1 PAGE

COSA Wheelchair Ramp Standards (Revised) 1 PAGE

COSA Miscellaneous Construction Standards I (Revised) 1 PAGE

COSA Miscellaneous Construction Standards II (Revised) 1 PAGE

COSA Concrete Driveway Standards (Revised) 1 PAGE

COSA Elevated Sidewalk and Retard Standard (Revised) 1 PAGE

COSA Chain Link Wire Fence Standards 1 PAGE

COSA Tree Protection Details 1 PAGE

COSA Temporary Erosion, Sediment & Water Pollution Control 1 PAGE

Measures Standards 1

COSA Temporary Erosion, Sediment & Water Pollution Control 1 PAGE

Measures Standards 2

COSA Barricade and Construction Standards 4 PAGES

TxDOT Pedestrian Facilities – Curb Ramps (Revised) 2 PAGES

TxDOT BC (6)-13 PCMS Traffic Standard 1 PAGE

TxDOT TCP (3-1)-13 TCP Mobile Operations Undivided Highways 1 PAGE

TxDOT TCP (3-4)-13 TCP Mobile Operations for Isolated Work Areas 1 PAGE

Undivided Highways

General Notes 2 PAGES

TxDOT Pedestrian Facilities – Curb Ramps (Revised) 2 PAGES

TxDOT BC (6)-13 PCMS Traffic Standard 1 PAGE

TxDOT TCP (3-1)-13 TCP Mobile Operations Undivided Highways 1 PAGE

TxDOT TCP (3-4)-13 TCP Mobile Operations for Isolated Work Areas 1 PAGE Undivided Highways

General Notes 2 PAGES Project Description

Project Duration This task order construction contract shall be terminated ten (10) months (three hundred

(300) calendar days) after acceptance of the first task order. The construction time (in calendar days) for each individual site will be negotiated between the City Engineer or Project Manager and the Contractor. The Contractor will be expected to begin construction for each individual site in accordance with Article 1- General Provisions, Section 1.2.4, Notice to Proceed and Commencement of Contract Times in the General Conditions-City of San Antonio Construction Contracts. The Contractor may also be limited to the amount of individual project sites open at any given time based on performance or available resources. Liquidated damages for construction time will be assessed on a per site basis should the contractor fail to complete the construction in the specified calendar days as negotiated by the City Engineer or Project Manager.

Project Scope Project construction may include but is not limited to: concrete curbs, sidewalks, driveways, concrete retaining walls-combination type, wheel chair ramps, minor asphalt milling and replacement, removing and relocating mail boxes, topsoil, sodding, striping, elevated sidewalks, sidewalk pipe railing, adjusting existing meter boxes, valve boxes and manholes, tree pruning, removal and/or replacement, and any other items required due to the site conditions to accomplish the project scope.

Quantities included in this contract, as well as the entire bid amount are not guaranteed. Unit prices established shall remain valid throughout the duration of the contract.

Please Note:

- 1. This in practicality means that each or any of the unit prices can be used in whatever quantity desired by the city engineer up to the value of the contract. The estimated quantities are those which are intended by traditional usage, but not a limit on what can be ordered.

- 2. The contract may be used for task orders up to what is needed by the city, but not necessarily execute the full value of the contract, or even any of the contract as desired.

- 3. There will be no alteration in the line item prices, as they are each considered “fair and reasonable” by competitive bid

Project Crew Availability:

The contractor guarantees a full crew capable of producing an average of $168,000 of constructed product per month assigned to each offered Task Order, and guarantees that either a minimum of four (4) crews will simultaneously preform Task Orders. Failure to provide crews that can reasonably produce to this level of effort or crew availability is grounds for inspections and contract level violations.

Project Location The sites shall be assigned by the City Engineer or Program Manager and shall be located throughout the City. Each project site will be issued as a separate Task Order and quantities will be provided to the Contractor.

It is anticipated that some project sites may require working time restrictions (school zones, TXDOT ROW). No additional cost will be paid to the contractor for reduced working times.

Project sites will vary and work orders issued can be as small as $5,000.00. The contractor shall accept all work orders given regardless of size and for projects that qualify for additional mobilization (Between $5,000 and $10,000), they shall receive only one (1) “additional mobilization” payment fee per TO in accordance with Supplemental Specification Item 8—which may be pro-rated depending on the size of the TO (see Sup spec for details).

Important Notes No direct payment shall be made for the following specification items unless specifically noted otherwise on the unit pricing form. Contractor shall include cost of these items in various other bid items:

100.1 Mobilization

101.1 Preparing Right-of-Way

530.1 Barricades, Signs, and Traffic Handling

540 Temporary Erosion, Sedimentation and Water Pollution Prevention and

Control

Excavation due to construction of driveways, and parkway grading (edge of pavement/curb to property line) shall not be paid for directly but shall be included in various other bid items of which it forms a component part.

Tree Stumps less than 4 feet tall, regardless of diameter are considered subsidiary to Item 101.1 Preparing Right of Way. No Separate Pay Item.

It is the contractor’s responsibility to produce and implement the traffic control (TCP) layout for each project location. The city has a right to request the TCP plan, either as an adaptation of the city standard TCP plan or separately produced TCP plan as a submittal prior to work execution for a task order (no engineer stamp required). The city has the right to direct the contractor to add additional traffic control measures should there be a clear or obvious concern of safety for the general public, at no additional expense to the city (police, TMA trucks, flashing arrow or message boards paid as additive items).

Curb Construction Method:

See details in the specifications.

Asphalt 1’ Strip The proposed 1’ asphalt strip (as per the roadway details) will be considered subsidiary (no separate pay item) to Items 500, 502, and 503. This includes saw cutting the existing pavement, removal and hauling of existing pavement, cleaning and prepping the surface for the placement of the 1’ asphalt strip. The asphalt must be well and solidly compacted with no obvious voids.

Sidewalk Pipe Railing:

All sidewalk pipe railing shall be painted in accordance with Specification 514 Paint and Painting.

All sidewalk pipe railing shall be galvanized in accordance with TxDOT Standard Specification Item 445, “Galvanizing”.

Concrete Sidewalk Drain:

Concrete sidewalk drain shall be installed in accordance with Miscellaneous Construction Standard I. Steel plates shall be ½ inch in thickness unless specified otherwise by the Engineer.

Concrete Approaches:

Concrete approaches shall be constructed with the all-inclusive line item for driveways, which will encompass all features of work to include removal of existing (as applicable) installation of concrete driveway, and payment for the at-grade curb at the leading edge of the driveway approach. This curb is additionally inclusive of the 1-ft asphalt patch. All work is paid and is fully inclusive of the combined items and is considered fully inclusive of the specifications for the respective work items.

Final Payment and Task Order Closeout When all work on an issued Task Order is complete in full, and the Contractor has received from the City both a Notice of Substantial Completion and Final Completion of Work, Contractor shall submit the final payment request and notate that the applicable payment request is Final. The Task Order will then be closed out by City and Contractor. Upon completion of payment request cycle and receipt of final payment by Contractor, Contractor agrees that all balances associated with Task Order have been paid in full. Final payment by the City shall constitute Final Completion of Work.

Native Seed/Native Sod The use of native plant species instead of invasive and foreign species should be employed when selecting seed, sod, and replacement trees. Many forms of Bermuda and St.

Augustine sod/seeds commercially available are non-native and should be avoided. See SARA319201 (Sup Specification) for native seed varieties.

All City of San Antonio Specifications & Construction Detail sheets are available on the City’s Website at:

https://www.sanantonio.gov/PublicWorks/Current-Vendor-Resources/Standard- Specifications-and-Details The contractor shall utilize revised Construction Standards that are included in this contract.

All Construction and Material Specifications for SAWS bid items are available at:

https://apps.saws.org/business_center/specs/constspecs/ https://apps.saws.org/business_center/specs/matspecs/

The Specific Contract Documents for this project are available on the City's Website at:

http://www.sanantonio.gov/purchasing/biddingcontract/opportunities.aspx Then, find the solicitation named “2026 Task Order Contract (TOC) for Flatwork and Street Improvements, Package 2”.

CITY OF SAN ANTONIO, TEXAS

GOVERNING SPECIFICATIONS, SPECIAL SPECIFICATIONS, SPECIAL PROVISIONS, AND

SUPPLEMENTAL SPECIFICATIONS

FOR

2026 Task Order Contract (TOC) for Flatwork and Street Improvements, Package 2

All Standard Specifications and Special Specifications applicable to this project are identified as follows:

CITY OF SAN ANTONIO STANDARD SPECIFICATIONS FOR CONSTRUCTION

JUNE, 2008 AND SPECIAL PROVISIONS DATED MAY 2009, FEBRUARY 2010,

JUNE 2010 and NOVEMBER 2013

ITEM DESCRIPTION

100 - MOBILIZATION

101 - PREPARING RIGHT-OF-WAY

103 - REMOVE CONCRETE

104 - STREET EXCAVATION

200 - FLEXIBLE BASE

203 - TACK COAT

205 - HOT MIX ASPHALTIC CONCRETE PAVEMENT

208 - SALVAGING, HAULING AND STOCKPILING RECLAIMABLE ASPHALTIC

PAVEMENT

210 - ROLLING

300 - CONCRETE

301 - REINFORCING STEEL

302 - METAL FOR STRUCTURES

303 - WELDED WIRE FLAT SHEETS

307 - CONCRETE STRUCTURES

311 - CONCRETE SURFACE FINISH

500 - CONCRETE CURB, GUTTER, AND CONCRETE CURB AND GUTTER

502 - CONCRETE SIDEWALKS

503 - ASPHALTIC CONCRETE, PORTLAND CEMENT CONCRETE, AND GRAVEL DRIVEWAYS

505 - CONCRETE RIPRAP

506 - CONCRETE RETAINING WALLS – COMBINATION TYPE

510 - TIMBER GUARD POSTS

512 - ADJUSTING EXISTING MANHOLES AND VALVE BOXES

513 - REMOVING AND RELOCATING MAILBOXES

514 - PAINT AND PAINTING

515 - TOPSOIL

516 - SODDING

520 - HYDROMULCHING

522 - SIDEWALK PIPE RAILING

523 - ADJUSTING OF VEHICULAR AND PEDESTRIAN GATES

524 - CONCRETE STEPS

530 - BARRICADES, SIGNS, AND TRAFFIC HANDLING

531 - SIGNS

540 - TEMPORARY EROSION, SEDIMENTATION AND WATER

POLLUTION PREVENTION AND CONTROL

552 - REMOVING AND RELOCATING IRRIGATION SYSTEMS

554 - EROSION CONTROL MATTING

556 - CAST IN PLACE DETECTABLE WARNING SURFACE TILES

1000 - WEB PORTAL

SPECIAL SPECIFICATIONS FOR CONSTRUCTION

ITEM 801 – TREE AND LANDSCAPE PROTECTION

ITEM 802 – TREE PRUNING, SOIL AMENDING, AND FERTILIZATION

ITEM 804 – NEW TREE AND SHRUB PLANTING AND MAINTENANCE

SAN ANTONIO WATER SYSTEM

STANDARD SPECIFICATIONS FOR CONSTRUCTION DATED APRIL 2014

824 - SERVICE SUPPLY LINES (WATER)

826 - VALVE BOX ADJUSTMENT

833 - METER AND METER BOX INSTALLATION

851 - ADJUSTING EXISTING MANHOLE

854 - SANITARY SEWER LATERALS

SPECIAL PROVISIONS FOR CONSTRUCTION

500 - CONCRETE CURB, GUTTER AND CONCRETE CURB AND GUTTER

502 - CONCRETE SIDEWALKS

503 - ASPHALTIC CONCRETE, PORTLAND CEMENT CONCRETE, AND

GRAVEL DRIVEWAYS

505 - CONCRETE RIPRAP

513 - REMOVING, RELOCATING, AND REPLACING MAILBOXES

520 - HYDROMULCHING

523 - ADJUSTING OF VEHICULAR & PEDESTRIAN GATES

530 - BARRICADES, SIGNS AND TRAFFIC HANDLING

540 - TEMPORARY EROSION, SEDIMENTATION & WATER POLLUTION

PREVENTION AND CONTROL

556 - CAST IN PLACE DETECTABLE WARNING SURFACE TILES

804 - NEW TREE & SHRUB PLANTING AND MAINTENANCE

PRIORITY SITE COMPLETION INCENTIVE/DISINCENTIVE

SUPPLEMENTAL SPECIFICATIONS FOR CONSTRUCTION

SUP 1 – REMOVING AND RELOCATION SIGN

SUP 2 – ELEVATED SIDEWALK

SUP 3 – SIDEWALK DRAIN BOX (1/2 INCH THICK)

SUP 4 – REMOVAL AND HAUL OFF OF ROCK/MASONRY MAIL BOX

SUP 5 – TREE REMOVAL

SUP 6 – PUBLIC WORKS PROJECT SIGN

SUP 7 – POLICE OFFICER

SUP 8 – ADDITIONAL MOBILIZATION

SUP 9 – REMOVE AND RELOCATE CUSTOMER SHUT OFF VALVE

SUP 10 – REMOVE AND RELOCATE BACKFLOW PREVENTER

SUP 11 – REMOVE AND REPLACE EXISTING SIGN POST AND BASE, RE-MOUNT EXISTING

SIGN(S)

SUP 13 – BACK CURB

SUP 14 – CONCRETE SIDEWALK GRINDING (VERTICAL DISTRESS CORRECTION)

SUP 15 – VEGETATION AND SHRUB REMOVAL FROM SIDEWALK CORRIDOR

SUP 16 – TREE LIMB TRIMMING FOR SIDEWALK CLEARANCE

DETAILS FOR CONSTRUCTION

PUBLIC WORKS PROJECT SIGN DETAIL

ASPHALT REPAIR AND CURB CONSTRUCTION DETAILS FOR

FLATWORK ONLY PROJECTS

COSA WHEELCHAIR RAMP STANDARDS (REVISED)

COSA MISCELLANEOUS CONSTRUCTION STANDARDS I (REVISED)

COSA MISCELLANEOUS CONSTRUCTION STANDARDS II (REVISED)

COSA CONCRETE DRIVEWAY STANDARDS (REVISED)

COSA ELEVATED SIDEWALK AND RETARD STANDARDS DETAILS (REVISED)

COSA CHAINLINK WIRE FENCE STANDARDS

COSA TREE PROTECTION DETAILS

COSA TEMPORARY EROSION, SEDIMENT AND WATER POLLUTION CONTROL

MEASURES STANDARD 1

COSA TEMPORARY EROSION, SEDIMENT AND WATER POLLUTION CONTROL

MEASURES STANDARD 2

COSA BARRICADE AND CONSTRUCTION STANDARDS

TXDOT PEDESTRIAN FACILITIES – CURB RAMPS (REVISED)

TXDOT BC(6)-13 PCMS TRAFFIC STANDARD

TXDOT TCP(3-1)-13 TCP MOBILE OPERATIONS UNDIVIDED HIGHWAYS

TXDOT TCP(3-4)-13 TCP MOBILE OPERATIONS FOR ISOLATED WORK AREAS UNDIVIDED

HIGHWAYS

BACKCURB

SPECIAL PROVISION

Item 100 Mobilization

100.2 Measurement:

This item will be measured and paid as a lump sum according to the payment terms specified in amended Section 100.3.

100.3 Payment: sub para-A:

A. Payment will be made upon presentation of a paid invoice for the payment bond and performance bond. The payment for bonds will be no more than 2.5% of the total Contractamount, or the lump sum Contractor bid amount, whichever is less.

B. If a task-order is anticipated in the first 3-months following contract award (sufficient time for contract approval and administrative processing), a one-time payment for bond, Item 100.2 will be processed. Otherwise, if a Task Order is not anticipated in the first 3-months, an administrative TO will be processed to pay item 100.2.

C. No payment for mobilization (Item 100.1).

D. Insurance will not be measured for payment for this contract.

E. Payment for bond will only be made after an original bond is presented to the Project Manager or contracting officer.

F. Payment for all required bonds shall be made in full prior to issuance of the first task order,but not before what is specified in section 100.3B.

G. The surety company issuing the bond must be of sufficient quality and have residual funds sufficient to cover the bond amount. If the contracting officer determines the surety company is not of sufficient quality or lacks reasonable resources to cover the bond, the bond payment may be withheld until sufficient quality bonding agent is procured. Additionally, the bonding agent may not place onerous or restrictive clauses in their surety agreement that would reasonably preclude the City from exercising the bond if needed. In the event there were restrictive clauses the payment would be withheld until sufficient quality bonding is procured.

Section 100.4 Bid Item:

Item 100.2 – Bond - Lump Sum (LS)

Item 101 Preparing Right-of-Way

Delete:

Section 101.5 Measurement in its entirety Section 101.6 Payment in its entirety Section 101.7 Bid Item in its entirety

Add:

101.5 Measurement:

“Preparing Right-of-Way” will not be measured for payment for this contract.

101.6 Payment:

Payment will not be made for “Preparing Right-of-Way” under this contract. Cost incurred for this item shall be considered subsidiary.

ITEM 500 Concrete Curb, Gutter, and Concrete Curb and Gutter

- First paragraph from Section 500.4

- Second paragraph from Section 500.4.A.2 Placement

- Sixth paragraph from Section 500.4.A.2 Placement

- Section 500.6 Payment

- Section 500.7 Bid Item

Section 500.4 Construction:

Curbs, gutters, curb and gutter combinations, and mountable curb may be placed using conventionally formed concrete placement or using a City approved self-propelled concrete curbing machine.

Section 500.4.A.2 Placement second paragraph:

Place curbs, gutters, combined curb and gutters, and mountable curb in 50 foot maximum sections unless otherwise approved.

Section 500.4.A.2 Placement sixth paragraph:

When finishing operations are completed the curb is to be coated with membrane curing compound with a color of clear. Colored membrane curing compound will not be allowed.

Section 500.6 Payment:

The work performed and materials furnished in accordance with this Item and measured as provided under “Measurement” will be paid for at the unit price bid for “Concrete Curb,” “Concrete Curb and Gutter,” or “Mountable Curb” of the type specified. This price is full compensation for surface preparation of base, equipment, labor, materials, tools, and incidentals necessary to complete the work.

Section 500.7 Bid Item:

Item 500.1 – Concrete Curb – per linear foot (LF) Item 500.4 – Concrete Curb and Gutter – per linear foot (LF) Item 500.5 – Mountable Curb – per linear foot (LF)

ITEM 502 Concrete Sidewalks

- Delete Item C Wire Mesh from 502.2 Materials

- Delete first paragraph from 502.4.D. Sub-base Placement

- Delete first paragraph from 502.4.F.Joints

- Delete Item G Curb Ramps from 502.4 Construction

- Delete Item I Finishing and Curing from 502.4 Construction

- Delete 502.5 Measurement

- Delete first paragraph from 502.6 Payment

Add :

Section 502.4.D Sub-base Placement:

A cushion, 4 inch minimum thickness, or crusher screenings, gravel, crushed rock or flexible base material shall be spread, wetted thoroughly, tamped and leveled. The cushion shall be moist at the time the concrete is placed. Where the subgrade is rock or gravel, 70% of which is rock, the 4 inch cushion need not be used. The Engineer will determine if the subgrade meets the above requirement.

Section 502.4.E.1 Reinforcement:

6” X 6” W/D 2.9 X W/D 2.9 welded wire flat sheets (Item 303) will NOT be allowed to be used as reinforcement for sidewalks. Contractor shall use No. 3 bars (minimum) @ 18 inches O.C. each way or 6” X 6” W/D 5 X W/D 5 welded wire flat sheets (Item 303) centered in slab as reinforcement for sidewalks.

All curb ramps, as noted in Section 502.4G below, shall be constructed at commercial grade, with No. 4 bars (minimum) at 12 inches O.C. each way centered in slab, at 6 inches thick. Sub-base placement identified in Section 502.4.D of this provision applies to curb ramps. Wire mesh of any size will NOT be allowed for Curb Ramps.

Section 502.4.F Joints:

Unless otherwise specified on the plans or as agreed to by the Engineer, tooled joints with rounded edges will be placed at intervals equal to the sidewalk width and will be opened with one-half inch(1/2”) radius by one and one-half inch (1 ½”) depth and closed by one-half inch (1/2”) radius by one-inch (1”) depth.

Section 502.4G Curb Ramps:

Curb ramps must include a detectable warning surface and conform to the details shown on the plans. Confirm that abrupt changes in sidewalk elevation do not exceed ¼ inch, sidewalk cross slopes does not exceed 2%, curb ramp longitudinal grade does not exceed 8.3%, flares adjacent to the ramp do not exceed 10% slope, and landings shall be 5’ x 5’ minimum unless directed otherwise by the Engineer or Project Manager. Construct wheelchair ramps in accordance CoSA Wheelchair Ramp Standards (Revised) or TxDOT Curb Ramps Standards (Revised), which are included in the contract documents.

Construct curb ramp to include the following provisions:

Protection of existing street surface Reasonable geometry changes as required to avoid obstructions Construct detectable warning surface with truncated domes conforming to the City of San

Antonio Wheelchair Ramp Standards (Revised) sheet. Detectable warning surface tiles shall be 2’ x 5’ and in accordance with Item 556. Truncated domes must be properly oriented as per the ramp specified in the plans or called for by the Engineer or Project Manager

Remove existing flatwork in accordance with the specification for Item 103, except measurement and payment. Flatwork is defined as concrete curb, sidewalk, driveway, retaining wall, and miscellaneous concrete.

Removal of existing asphalt along curb in accordance with Item 104, except measurement and payment

Excavation of in-situ soil and grading required to install the curb ramp Construct new curb including base requirements, in accordance with the specification for

Item 500 and Miscellaneous Construction Standards 1 (Revised), except measurement and payment.

o Proper compaction of base is required Construct concrete sidewalk including base requirements, per the provisions of this specification and Miscellaneous Construction Standards 1 (Revised), except measurement and payment.

o Proper compaction of base is required Construct concrete retaining wall (combination type) or c-curb, up to a maximum height of 6-inches, in accordance with the specification for Item 506, except measurement and payment.

Adjust or relocate existing signs as directed per Supplemental Specifications, except measurement and payment.

Relocate irrigation systems in accordance in accordance with the specification for Item 552, except measurement and payment.

Install topsoil and sodding for grading limits impacted in accordance with specifications 515 and 516, respectively, except measurement and payment.

Restoration of damaged asphalt, or 1’ asphalt surface repair, in accordance with the details included in these contract documents, except measurement and payment

Relocate landscape as required.

Contractor shall not leave the ramp unattended more than one (1) day.

Concrete work shall be maintained free from graffiti of any kind.

Avoid damage to the property of others. Contractor will be held liable for damage.

Section 502.4.I Finish and Curing:

Provide finished work with a well-compacted mass, a surface free from voids and honeycomb, and the required true-to-line shape and grade. After finishing each portion of the sidewalk, the surface shall be textured with heavy broom finish. Within twenty minutes of broom finish, a curing compound shall be used to protect the sidewalk. The curing compound shall be of a high solid content, greater than thirty percent (+30%) and be clear in nature. Colored curing compound will not be accepted. All edges shall be tooled to have slight radius. Surface water retention is not acceptable. Finished surface of sidewalks shall generally be one-half inch (½ inch) to one inch (1 inch) above existing grade. Concrete must be cured and protected from freezing temperatures for at least three (3) days. Curing compound must be used during all seasons of the year.

Section 502.5 Measurement:

Sidewalks – will be measured by the square yard of surface area at the depth specified in these contract documents.

Curb Ramps (Single Direction) – will be measured by each unit that consists of a single direction curb ramp of the type specified in the plan. Each “single” unit shall consist of the following:

- Excavation and grading for the proposed curb ramp

- Removal of up to 24-SF of existing asphalt necessary to construct the new curb ramp

- Removal of up to 24-LF of curb

- Removal of up to 135 square feet of concrete surfaces including sidewalk, landings, flares, wings, and miscellaneous concrete

- Concrete sidewalks and surfaces up to 15 square yards, inclusive of sidewalk, ramps, landings, wings, and flares

- Single truncated dome

- Concrete curbs up to 24-LF in length

- Concrete retaining wall – combination type or c-curb up to 6-inches in height

- Landscape relocation, including installation of new topsoil and sodding

- Relocation of irrigation system

- Restoration of up to 24-SF of asphalt for up to 24-LF in curb length

- Graffiti removal

Curb Ramps (Dual Direction) – will be measured by each unit that consists of a dual direction curb ramp of the type specified in the plan. Each “dual” unit shall consist of the following:

- Excavation and grading for the proposed curb ramp

- Removal of up to 40-SF of existing asphalt necessary to construct the new curb ramp

- Removal of up to 40-LF of curb

- Removal of up to 200 square feet of concrete surfaces including sidewalk, landings, flares, wings, and miscellaneous concrete

- Concrete sidewalks and surfaces up to 23 square yards, inclusive of sidewalk, ramps, landings, wings, and flares

- Two truncated domes

- Concrete curbs up to 40-LF in length

- Concrete retaining wall – combination type or c-curb up to 6-inches in height

- Landscape relocation, including installation of new topsoil and sodding

- Relocation of irrigation system

- Restoration of up to 40-SF of asphalt for up to 40-LF in curb length

- Graffiti removal

Section 502.6 Payment:

Sidewalks – the work performed and materials furnished in accordance with this Item and measured as provided under “Measurement” will be paid for at the unit price bid per square yard for “Concrete Sidewalks – Conventionally Formed.” This price is full compensation for surface preparation of base; materials; excavation, hauling and disposal of excavated material; drilling and doweling into existing concrete curb, sidewalk, and pavement; repair of adjacent street or pavement structure damaged by these operations; and equipment, labor, materials, tools, and incidentals necessary to complete the job.

Curb Ramp (Single Direction) – the work performed and materials furnished in accordance with this Item and measured as provided under “Measurement” will be paid for at the unit price bid for “Curb Ramp (Single Direction).” This price is full compensation for excavation of in-situ soil, existing concrete, and grading required to install proposed curb, curb ramps and asphalt restoration; hauling and disposal of excavated material; surface preparation of base; materials and hauling; drilling and doweling into existing curb, sidewalk and pavement; repair of adjacent street or pavement structure damaged by these operations; and equipment labor, tools and incidentals necessary to complete the job. Payment of this item shall be in accordance with limits as specified under the Measurement section of this specification. If limits are not specified than that item is considered all inclusive. Any limits that are exceeded due to construction of a single direction curb ramp shall be compensated per the specification item it forms a component part of.

Curb Ramp (Dual Direction) – the work performed and materials furnished in accordance with this Item and measured as provided under “Measurement” will be paid for at the unit price bid for “Curb Ramp (Dual Direction).” This price is full compensation for excavation of in-situ soil, existing concrete, and grading required to install proposed curb, curb ramps and asphalt restoration; hauling and disposal of excavated material; surface preparation of base; materials and hauling; drilling and doweling into existing curb, sidewalk and pavement; repair of adjacent street or pavement structure damaged by these operations; and equipment labor, tools and incidentals necessary to complete the job. Payment of this item shall be in accordance with limits as specified under the Measurement section of this specification. If limits are not specified than that item is considered all inclusive. Any limits that are exceeded due to construction of a dual direction curb ramp shall be compensated per the specification item it forms a component part of.

Section 502.7 Bid Item:

Item 502.1 – Concrete Sidewalks – per square yard (SY) Item 502.3A – Curb Ramp (Single Direction) – per each (EA) Item 502.3B – Curb Ramp (Dual Direction) – per each (EA)

Item 503 Asphaltic Concrete, Portland Cement Concrete and Gravel Driveways

- Item N Welded Wire Reinforcement (Item 303) from 503.2 Materials

- First paragraph from 503.4.E.5 Portland Cement Concrete Pavement

- 503.4.E.5.a Commercial Driveways

- (Delete in Entirety) Section 503.5 Measurement

- Item 503.6 Payment

Section 503.5A Measurement No separate measurement of excavation, base material, prime coat, tack coat, Portland cement concrete, low curb, or asphalt surfacing will be made. Accepted work as prescribed by this item will be measured by the square yard of Portland cement concrete driveway, asphaltic concrete driveway or gravel driveway.

Item 503.4.C.1 Flexible Base:

A minimum section of 4” flexible base bedding will be required for installation of all driveways.

Item 503.4.E.5 Portland Cement Concrete Pavement:

If shown on the plans, tie the concrete driveway to concrete pavement or concrete parking lot pavement. Use only drilling operations that do not damage the surrounding operations when drilling holes for replacement steel. Unless otherwise shown on the plans, reinforcement shall consist of No. 3 (3/8”) reinforcing steel placed not more than 12 inches on centers both directions.

Welded wire flat sheets will not be allowed to be used as reinforcement for residential driveways.

If existing reinforcement for residential driveways is greater than No. 3 reinforcing steel, the contractor shall install equal reinforcing steel size. All reinforcement shall be placed equidistant from the top and bottom of the concrete. Care shall be exercised to keep all steel in its proper position during the depositing of concrete. Splices in the No. 3 bars shall have a minimum lap of 12 inches. For existing driveways with existing steel, place new deformed reinforcing steel bars of the same size and spacing as the bars removed or as shown on the plans. Lap all reinforcing steel splices in accordance with Item 301, “Reinforcing Steel.” Epoxy-grout all tiebars for at least a 12 inch embedment into existing concrete. Completely fill the tiebar hole with Type III, Class A or Class C epoxy before inserting the tiebar into the hole. Provide grout retention disks for all tiebar holes. Provide and place approved supports to firmly hold the new reinforcing steel, tiebars, and dowel bars in place. The concrete slab for residential driveways shall be a minimum of 5 inches thick or as shown on the plans.

Item 503.4.E.5.a Commercial Driveways:

Reinforcing for commercial driveways shall consist of No. 4 (1/2”) reinforcing steel placed not more than 12 inches on center both directions. Welded wire flat sheets will not be allowed to be used as reinforcement for commercial driveways. If existing reinforcement for commercial driveways is greater than No. 4 reinforcing steel, the contractor shall install equal reinforcing steel size. The concrete slab shall be a minimum of 6 inches thick or as shown on the plans. If existing slab thickness is thicker than 6 inches, the contractor shall match the existing thickness for the newly built driveway.

Item 503.6 Payment:

The work performed as prescribed by this item will be paid for at the contract unit price bid per square yard for “Portland Cement Concrete Driveway”, Portland Cement Concrete Driveway – Commercial”, “Asphaltic Concrete Driveway”, or “Gravel Driveway”, which price shall be full compensation for preparing the subgrade, for furnishing and placing all materials, manipulations, labor, tools, equipment and incidentals necessary to complete the work. Payment for reinforcing steel that is greater in size than what is called out for in this specification for residential or commercial driveways will be negotiated between the Contractor and Engineer or Project Manager. Payment for slab thickness greater in size than what is called out for in this specification for residential or commercial driveways will be negotiated between the Contractor and Engineer or Project Manager.

ITEM 505 Concrete Riprap

Delete in its entirety:

Section 505.4.A Concrete Reinforcement

Section 505.4.A Concrete Reinforcement:

Unless otherwise shown on the plans, reinforce concrete riprap with No. 4 reinforcing bars spaced at a maximum of 18 in. in each direction unless otherwise shown. Provide a minimum 6-in. lap at all splices. At the edge of the riprap, provide a minimum horizontal cover of 1 in. and a maximum cover of 3 in. Place the first parallel bar no more than 6 in. from the edge of concrete. Use approved supports to hold the reinforcement approximately equidistant from the top and bottom surface of the slab. Adjust reinforcement during concrete placement to maintain correct position. Reinforcement protruding from existing riprap shall be thoroughly cleaned.

SPECIAL PROVISION

ITEM 513 — Removing, Relocating, and Replacing Mailboxes

513.1 DESCRIPTION

This item governs all work involving existing residential mailboxes affected by construction under this contract — whether the mailbox is a direct construction conflict requiring temporary relocation, is a rock/masonry mailbox requiring replacement with the City's decorative standard, or is simply being upgraded at the City's direction independent of any construction conflict.

This item is divided into three bid items, distinguished by the condition triggering the work. Bidders and field personnel shall use the following criteria to determine which bid item applies to a given mailbox location:

Condition Description Bid Item

Mailbox is in direct physical conflict with proposed construction (curb, sidewalk, driveway, etc.) and must be moved out of the way, then reset

Requires temporary relocation to maintain mail service during construction; permanent reset upon completion

513.1 — Removing, Relocating & Replacing Mail Boxes

Mailbox is a rock or masonry mailbox/pillar located anywhere within project limits, regardless of construction conflict

Rock/masonry structure removed and replaced with City-approved decorative mailbox assembly; removal/haul-off of rock/masonry structure paid under SUP 4

513.1A — Decorative Mailbox, plus SUP 4

Mailbox is a standard residential mailbox (not masonry/ornamental) being upgraded at the City's direction, with no construction conflict requiring temporary relocation

One-time removal and replacement in place;

no temporary relocation or mail-continuity requirement

513.1B — Replace Existing Standard Mailbox

Ornamental iron mailboxes (non-masonry special posts) are addressed separately under Section 513.4.E below and are not governed by the decorative mailbox provisions applicable to rock/masonry mailboxes.

513.2 MATERIALS

A. General mailbox assembly (513.1 and 513.1B): Reference COSA Spec 513.4.2 Materials — 4 inch x 4 inch wood post, equal or better than the original. The mailbox shall be typical sheet metal, standard size, black, commonly available at residential building supply retailers. House numbers shall be 2-inch reflective, self-adhesive, commonly available items applied on both sides of the mailbox, centered and straight, and not obstructed by the mailbox flag.

B. Decorative mailbox (513.1A): A decorative mailbox and post assembly as approved by the Engineer, generally matching the ornamental or masonry character of the original mailbox where practicable.

C. Existing wooden posts, where reset, shall be made of high quality treated exterior lumber and connected with exterior screws.

513.3 EQUIPMENT

Provide equipment necessary to conduct the work as required under each bid item.

513.4 CONSTRUCTION

A. General (applies to all bid items under this Special Provision)

Maintain mailbox assemblies in a serviceable condition at all times during construction. The Contractor is not responsible for damage to a mailbox not of its causing while in a temporary location. Any damage caused by Contractor negligence shall be remedied by the Contractor at its expense, restoring the unit to as good as, or better condition than its original state, subject to Engineer approval.

B. 513.1 — Removing, Relocating, and Replacing Mail Boxes

Where an existing mailbox is in direct conflict with proposed construction, the mailbox and any supporting post shall be removed from its present location, installed in a temporary, serviceable location during construction, and reset in its permanent location as shown on the plans upon completion.

Contractor shall install a temporary mailbox for each affected property so mail delivery is undisturbed.

Contractor may reuse the existing mailbox as the temporary unit or provide another temporary, secure mailbox for continuous delivery.

Any supporting post found to be set in concrete at the time of removal shall be reset in concrete at the permanent location. As a minimum, each mailbox shall be set on a 4 inch x 4 inch wood post, equal or better than the original, at the location and height shown on the plans.

Temporary community mailbox slabs may be used in lieu of temporarily relocating individual mailboxes, subject to Section 513.4.D below.

C. 513.1A — Decorative Mailbox (Rock/Masonry Replacement)

All rock/masonry mailboxes located within project limits shall be removed from the site and replaced with the decorative mailbox and post assembly specified in Section 513.2.B, regardless of whether the mailbox is in direct conflict with construction. Removal and haul-off of the existing rock/masonry structure is paid separately under Supplemental Specification 4 and is not included in the 513.1A unit price.

The decorative mailbox assembly shall be located and installed in accordance with the ADA/PROWAG Pedestrian Access Route requirements of Section 513.4.G below.

D. Community Mailbox Slabs

Temporary community boxes may be required in lieu of temporarily relocating existing mailboxes.

Community boxes will be installed by the U.S. Postal Service on concrete slabs installed by the Contractor as part of this contract. Contractor shall install temporary concrete pads at locations and dimensions shown on the plans, or as directed by the Engineer, Project Manager, or Inspector, and shall remove the slabs upon completion of the project after mail delivery has been switched back to permanent mailboxes.

If the Contractor chooses to install a community mailbox slab in lieu of providing temporary mailboxes, the Contractor shall provide the Engineer or City Project Manager at least one (1) month's advance notice so coordination can be completed with the U.S. Postal Service.

E. Ornamental Iron Mailboxes and Special Posts

Existing mailboxes mounted on ornamental iron or other special posts (not rock/masonry) may be reinstalled on the existing post if they meet ADA and U.S. Postal Service requirements. The Engineer or Project Manager will determine whether the existing ornamental mailbox and post meet requirements or must be replaced. Contractor shall secure the ornamental mailbox to prevent damage during construction operations.

Where an existing mailbox is found unsatisfactory, or out of compliance with ADA or USPS requirements, Contractor shall install a new mailbox and post as shown in the plans and specifications, paid under Bid Item 513.1.

F. 513.1B — Replace Existing Standard Mailbox

Where the City directs replacement of an existing standard residential mailbox independent of any construction conflict (i.e., no temporary relocation is required), the existing mailbox shall be removed and a new standard mailbox assembly installed per Section 513.2.A, either in soft soil (stabilized with concrete) or in a block-out/cutout in a sidewalk patched flush and smooth with the existing concrete.

No payment differential is made for the different installation treatments. If a mailbox does not presently exist at a directed location, the same payment applies.

An existing mailbox unit (box only, not post) may be reinstalled under 513.1B in lieu of furnishing a new standard mailbox, provided all of the following conditions are met:

- The unit is a USPS-compliant standard residential mailbox meeting current USPS-approved dimensions for curbside delivery, and is not oversized, decorative, or otherwise non-conforming.

- The unit is structurally sound, with no significant rust-through, cracking, or corrosion.

- The door, hinge, and flag operate freely and the door latches/closes securely.

- The unit is free of major dents, holes, or deformation that would compromise secure closure or weather protection of mail.

This reinstallation provision applies to the mailbox unit only. The mailbox post is removed and replaced with new in all cases, regardless of the condition of the existing mailbox unit.

Contractor shall make an initial field determination of mailbox condition at the time of removal and shall photograph the unit prior to removal where reinstallation is intended. The Engineer retains final determination authority in the event of a dispute over condition. Where an existing mailbox is reinstalled, house numbers shall still be furnished and applied per Section 513.2.A.

G. ADA/PROWAG Pedestrian Access Route Compliance (applies to 513.1, 513.1A, and 513.1B)

The mailbox post and box shall be located entirely within the furnishing/buffer zone and shall not encroach upon the Pedestrian Access Route (PAR) at any point, including the open position of the mailbox door and flag.

- Clear width: the PAR shall maintain the greater of the PROWAG minimum clear width (48 inches) or the controlling COSA sidewalk standard clear width for the applicable street classification, continuously and without obstruction.

- Cross slope: where installation of the mailbox assembly requires disturbance or patching of adjacent sidewalk/concrete, the finished cross slope within the PAR shall not exceed 2 percent at any point.

- Protruding objects: no portion of the mailbox, post, flag, or door (in the open position) shall overhang or protrude into the PAR.

- Passing spaces: where multiple mailboxes or CBUs are clustered such that the PAR clear width is reduced below 60 inches, passing spaces shall be provided at intervals not exceeding 200 feet per

PROWAG.

Where USPS siting preferences (height, horizontal setback from curb) conflict with maintaining a compliant PAR due to constrained furnishing zone width, existing utilities, or other site constraints, PROWAG compliance for the public pedestrian route shall govern. Contractor shall adjust the mailbox post location along the curb as needed to resolve the conflict; USPS siting is flexible on a box-by-box basis and does not override the accessible route requirement.

Contractor shall field verify the existing PAR clear width at each mailbox location prior to installation.

Where the furnishing zone is insufficient to accommodate the mailbox assembly without encroaching the PAR, Contractor shall notify the Engineer prior to proceeding, and the Engineer will direct an alternate location or resolution.

Prior to final acceptance of each mailbox installation, Contractor shall confirm with the Engineer that the completed installation meets PROWAG PAR requirements. The Engineer's confirmation shall be documented and retained as part of the project record. Mailbox installations not confirmed as compliant shall be corrected by Contractor at no additional cost to the City.

H. Differing Conditions (applies to 513.1A and any special post removal under 513.1)

Where removal of a rock/masonry structure or other special post requires extraordinary effort beyond typical post extraction — including but not limited to reinforced masonry footings, structural integration with adjacent walls or hardscape, or unforeseen subsurface conditions — Contractor shall notify the Engineer prior to proceeding with removal of that unit. Additional compensation, if warranted, will be addressed per the Contract's standard differing/changed conditions clause. Failure to notify the Engineer prior to proceeding shall waive Contractor's right to claim additional compensation for that unit.

513.5 MEASUREMENT

A. Removing, Relocating, and Replacing Mail Boxes (513.1). Measured by the number of mail boxes removed, temporarily relocated, and reset or replaced.

B. Decorative Mailbox (513.1A). Measured by the number of decorative mailbox assemblies installed.

Removal of the rock/masonry mailbox is measured separately under SUP 4.

C. Replace Existing Standard Mailbox (513.1B). Measured by Each mailbox and post placed. Removal of the existing mailbox post/box, excavation, haul off of excavated material, and concrete for the mailbox foundation are subsidiary to this bid item and will not be measured for payment. Topsoil and sodding will be paid under the applicable bid items.

D. Community Mailbox Slabs. Measured by the square yard, complete and in place, to include removal at job completion.

513.6 PAYMENT

A. Removing, Relocating, and Replacing Mail Boxes (513.1). Paid at the contract unit price bid per mailbox, which price is full compensation for removal from present position, temporary relocation in a serviceable position, and relocation or replacement to permanent designated location, resetting in concrete if required, and furnishing all materials, labor, tools, equipment, and incidentals necessary to complete the work.

B. Decorative Mailbox (513.1A). Paid at the contract unit price bid per decorative mailbox installed, which price is full compensation for furnishing all materials, installation, setting on a concrete foundation if required, and labor, tools, equipment, and incidentals necessary to complete the work.

Removal and haul-off of the existing rock/masonry mailbox is paid under SUP 4.

C. Replace Existing Standard Mailbox (513.1B). Paid at the contract unit price bid per Each, which price is full compensation for removal of existing material, mailbox post/box, excavation and haul off, concrete for mailbox foundation, and furnishing and placing all materials and all labor, tools, equipment, and incidentals necessary to complete the work.

D. Community Mailbox Slabs. Paid at the contract unit price bid per square yard of Item 502.1 "Concrete Sidewalks," which price is full compensation for construction and removal of the concrete slab(s), materials including reinforcing, labor, tools, equipment, and incidentals necessary to complete the work.

513.7 BID ITEMS

- Item 513.1 – Removing, Relocating, and Replacing Mail Boxes – per Each (EA)

- Item 513.1A – Decorative Mailbox – per Each (EA)

- Item 513.1B – Replace Existing Standard Mailbox – per Each (EA)

Note: Removal and haul-off of rock/masonry mailboxes is paid separately under Supplemental Specification 4 (SUP 4) whenever Item 513.1A applies.

Item 520 Hydromulching

Delete in its entirety:

Section 520.4 Construction (D) Slurry:

“Annual Ryegrass (Oct. through March 15) 20 lbs per 1,000 sqft”.

“Annual Ryegrass (Oct. through March 15) 5-10 lbs per 1,000 sqft”.

Item 523 Adjusting of Vehicular & Pedestrian Gates

Item 523 Adjusting of Vehicular & Pedestrian Gates

Add:

523.1. DESCRIPTION: This item shall govern for the adjustment of manual or motorized, chain link or wrought iron, vehicular or pedestrian gates made necessary by the construction of new driveways or sidewalk entrances.

523.2. MATERIALS: Additional materials needed to perform chain link fences gate adjustments shall conform to those specified in Item 507, “Chain Link Wire Fence”. Materials used to adjust wrought iron gates shall be of the same type of material and configuration as the existing gate including any masonry. A combination of new and existing materials may be used if approved by the Engineer and property owner.

523.3. EQUIPMENT: Provide the…