Permanent_Road_Patching_Specifications.pdf

SECTION 41.10

BITUMINOUS CONCRETE LIP CURBING

41.10.1 DESCRIPTION

This lip curbing shall consist of machine laid bituminous concrete, constructed on the pavement to the dimensions and details shown on the plans, or as ordered by the

Engineer, and in conformity with these specifications.

41.10.2 MATERIALS

Materials for this work shall conform to the requirements of Section 2.03 for surface course, of these Contract Documents.

41.10.3 CONSTRUCTION METHODS

The provisions of Section 40.13 of these Contract Documents shall govern, except that the requirements pertaining to samples and density will not apply. In addition, the curbing shall be constructed in accordance with the following requirements: Prior to the arrival of the mixture on the work, the surface of the pavement where the curbing is to be constructed shall be cleaned of all loose and foreign material. The surface, which shall be perfectly dry and clean at the time the mix is placed shall be coated with an RC-2 or other approved bitumen just prior to placing the mixture.

On arrival at the site, the mixture shall be transferred from the truck to the hopper of the curbing machine and the mixture shall be kept clean and free from direct or foreign materials at all times.

The surface of the curbing shall be tested with a ten-foot straight edge and any variation for a true line exceeding 1/4 of an inch shall be satisfactorily corrected. The only compaction required shall be that obtained by the approved mechanical curbing machine.

Where machine work is impractical, the Engineer may permit hand laid curbing to be constructed.

If the design of the curbing machine is such that the outside wheels operate outside of the curb, the Contractor will be required to obtain a smooth surface by grading and consolidating the area on which the outside wheel of the machine rides, and this work shall be done at his expense.

After completion of curbing, traffic will be kept at a safe distance for a period of not less than 24 hours and until the curbing has set sufficiently to prevent injury to the work.

41.10.4 METHOD OF MEASUREMENT

This item will be measured for payment by the actual number of linear feet of curb completed and accepted by the Engineer. Measurement will be made along the top of the curb.

41.10.5 BASIS OF PAYMENT

This item will be paid for at the contract unit price per linear foot for “Bituminous Concrete

Lip Curbing”, complete in place, which price shall include the cost of all materials, labor and equipment incidental. All invoices must be emailed to NHInvoice@newhavenct.gov.

mailto:NHInvoice@newhavenct.gov

SECTION 50.01

LOAMING, SEEDING AND SODDING

50.01.1 DESCRIPTION

The work under this section shall consist of furnishing all labor, materials, and equipment required to complete the loaming, seeding and/or sodding on areas indicated on the Drawings or directed by the Engineer.

50.01.2 MATERIALS

Grass: All grass seed shall be fresh, clean, of the latest crop, and composed of the following varieties, mixed in proportions by weight testing to minimum percentages of purity and germination specified:

Seed shall be delivered pre-mixed to the Site in standard size sealed containers bearing the vendor’s guaranteed statement attesting to the composition of the mixture and to the percentages of purity and germination of each variety. Seed shall be stored in such manner that its effectiveness is not impaired. Samples of seed shall be taken as directed by the Engineer, and shall be submitted to the State

Agricultural Station for analysis.

Sod: All sod shall be well-established, good quality, permanent lawn grass, grown on open ground in an approved area. It shall be strongly rooted, containing seventy-five (75) percent Merion

Bluegrass (Poa pratensis merion) and twenty-five (25) percent Pennlawn Fescue, free of pernicious weeds and coarse, burned or bare spots.

The sod shall be in rectangular sections varying in length between 3 feet and 6 feet and shall be of uniforms width not to exceed 18 inches. Sod shall have a uniform soil thickness of one and one-half (1-1/2) inches.

Grass shall have been mowed to a height of two (2) inches before lifting. Sections shall be of such size as to be lifted without breaking, tearing, or loss of soil.

The contractor shall furnish the Engineer with an adequate sample for inspection and approval before any sod is delivered to the site.

Loam: The Contractor shall furnish soil samples to the Engineer as requested at no additional cost to the City. Generally, the Engineer shall submit a sample of loam material proposed to be used on the project to a U.S. State or Agricultural Station for analysis and corrective recommendations if necessary. The Engineer shall advise the Contractor as to the corrective recommendations required to make the loam acceptable for use on the project.

Loam material furnished from sources outside of the project limits shall consist of loose, friable, sandy loam or loam topsoil free of admixture of subsoil, refuse stumps, roots, rock, brush, weeds, and other material which will prevent the formulation of a suitable sod or seed bed. Loam shall be that portion of the soil profile defined technically as the “A” horizon by the Soil Science

Society of America. It shall contain not less than 6 percent not more than 20 percent organic matter as determined by loss-on-ignition of oven dried samples drawn by the Engineer. Loam shall be free of stone 1-1/4 inches and larger in over-all dimensions. The Contractor shall notify the Engineer of the location from which he proposes to furnish loam at least 15 calendar days prior to delivery of loam to the project site from that location.

The loam and its source shall be inspected and approved by the Engineer prior to delivery to the project site. Any loam delivered to the project which does not meet the above requirements will be rejected and shall be immediately removed from the project site and replaced by the

Contractor with acceptable material at no additional cost to the City.

When loam is not furnished from outside sources, the material used shall be loam stripped during the course of excavation on the project site. All roots, stumps, debris, pavement, brush sods and other objectionable materials shall be removed by the Contractor prior to its use.

Chlordane: Chlordane shall be a commercial product in dry powder form, of recent manufacture, delivered to the Site in original unopened containers bearing the manufacturer’s guaranteed statement of analysis giving the percent of active ingredient.

Commercial Fertilizer: Commercial fertilizer shall be a complete fertilizer and a standard product complying with Federal and State Fertilizer laws. It shall be uniform in composition, dry, free flowing, and shall have been stored in a weatherproof place in such a manner that its effectiveness is not impaired. Fertilizer which becomes caked or otherwise damaged, making it unsuitable for use, shall not be accepted. Commercial fertilizer shall be delivered to the Site in original, unopened containers showing weight, analyses, and name of manufacturer and shall contain the following percentages of weight, of which at least fifty (50) percent of the nitrogen will be derived from an organic material or a composition containing “uramite”.

The contractor shall submit to the Engineer, the manufacturer’s guarantee statement of analysis or a manufacturer’s certification of compliance covering analysis for the Engineer’s written approval before delivery to the Site. Commercial fertilizer shall contain the following ingredients:

A. Nitrogen – derived from:

Methylene urea containing thirty-eight (38) percent or more of insoluble nitrogen

(“uramite” or equally approved). Activated sewage sludge containing a minimum of six

(6) percent nitrogen (Milorganite or equally approved).

B. Phosphorus – derived from:

Superphosphate containing sixteen (16) to twenty (20) percent phosphoric acid.

Raw bone meal containing twenty (20) to twenty-five (25) percent phosphoric acid and three (3) to four (4) percent nitrogen.

C. Potash - derived from:

Muriate or potash containing approximately sixty (60) percent potassium.

Commercial fertilizers shall contain the following proportions of ingredients for application to new lawns and sod:

Nitrogen……….5

Phosphorus……10

Potash…………10

Lime: Lime shall be an approved dolomitic agricultural ground lime-stone, (calcium carbonate) and shall contain not less than eighty five (85) percent of total carbonates, (total carbonates shall be considered as calcium carbonate). Lime-stone shall meet the following graduation requirements: at least fifty (50) percent will pass through a two hundred (200) mesh sieve, ninety (90) percent will pass through a one hundred (100) mesh sieve, one hundred (100) percent will pass through a ten (10) mesh sieve. It shall have been stored in a weatherproof place, in such a manner that its effectiveness is not impaired. Ground limestone shall be delivered to the Site in original, unopened containers bearing the manufacturer’s guaranteed statement of analysis.

50.01.3 CONSTRUCTION METHODS

All lines and grades required for proper performance of work shall be established by the

Contractor in the field and shall meet with the Engineer’s approval. Commencement of work shall not begin without the written approval of the Engineer.

Planting Seasons Planting shall progress only under favorable weather conditions during the proper season for such work. Unless otherwise authorized in writing by the Engineer the following shall apply: Grass seed and sod shall be placed only between August 15th and October

15th or only between April 1st and May 15th.

Preparation of Subgrade Subsoil shall be graded and uniformly compacted to a true smooth slope nine (9) inches below, and parallel to, the proposed finish grade for areas to be seeded or sodded.

Subgrade shall be loosened to a depth of two (2) inches to four (4) inches. Subsoil shall be kept in a loosened condition until the loam is spread. Subgrade shall be inspected and approved by the

Engineer before placing of loam.

Placing and Spreading of Loam: Loam shall be placed and spread, compacted and otherwise manipulated, over approved areas to a sufficient depth so that after natural settlement and light rolling, the completed work shall conform to the lines, grades and elevations shown on the Drawings or directed by the Engineer.

After loam has been spread, it shall be carefully prepared by scarifying or harrowing and hand raking. The whole surface shall then be rolled with a hand roller weighing not more than one hundred (100) pounds per foot of width. All depressions caused by settlement as a result of rolling shall be filled with additional loam and the surface regraded and re-rolled until it presents a smooth, even finish to the required grades.

Application of Lime Prior to completion of loam preparation, and if recommended as a result of soil analysis, lime shall be evenly distributed and thoroughly worked into the top three (3) inches of loam at the rate recommended by the soil analysis laboratory. Limestone shall be applied at least seven (7) days before applying fertilizer and chlordane. The ph content of the loam shall be

6.0 to 7.0 before sod or seed is placed.

Application of Fertilizer Commercial fertilizers shall be uniformly applied in all new grass areas. The app1ication shall be within one week prior to placement of sod, or seed at the rate recommended by the soil analysis laboratory, and worked lightly into the top two (2) inches of loam. Grass areas shall be watered thoroughly after the application of fertilizers.

Application of Chlordane After completion of grading, but prior to delivery of sod, five

(5) percent chlordane dust shall be applied at the rate of three and one half (3-1/2) pounds per one thousand square feet (1,000) of grass area, and raked into the top one half (1/2) inch of soil.

Chlordane shall be evenly distributed and the entire area thoroughly watered during or immediately after the application. Manufacturer’s directions shall be followed.

Sowing of Seed Seeding shall be done on dry or moderately dry soil, and at times when wind does not exceed a velocity of five (5) miles per hour. Seeding shall be done in two directions, at right angles, in such a manner that a uniform stand shall result. Seed shall be sown evenly be hand, or with an approved mechanical spreader, to a depth not exceeding one-fourth (1/4) inch, at the rate of five (5) pounds per one thousand (1000) square feet of area. After seeding the surface shall be evenly and lightly raked with a fine wood-toothed rake or other approved method, and rolled in both directions with a hand roller weighing not more than one hundred (100) pounds per foot of width, and then watered thoroughly with a fine spray. Light spraying shall be continued as required until grass has become established. The Contractor shall take necessary precautions to keep the area undisturbed until grass is established.

Placing Sod All sod must be delivered to the job within 24 hours after being cut and shall be installed within 36 hours after being cut. Sod shall arrive in a moist condition, free of insects, disease, burned or bare spots, and with root systems having sufficient soil to cover the fibrous roots.

While in temporary storage sod shall be placed in layers with grass to roots to roots. The stacks or piled layers shall be sprayed with water and covered with moist burlap. Particular care shall be exercised in digging, stacking, handling, and replanting, and no sod found in an unsatisfactory condition shall be installed.

Sod shall be placed so that no voids occur between strips and shall be immediately tamped or rolled to an even surface true to finished grade, smooth, even and equally firm at all points. Well-screened loam shall be lightly spread over the sodded area and raked or brushed over the surface. The

Contractor shall then thoroughly water to a depth of six (6) inches every twenty-four (24) hours, or as necessary until sod is established.

The Contractor shall protect and maintain new grass areas until final acceptance by proper watering, mowing, raking, weeding, edging, repairing sunken areas or washes, replanting and all incidental work, necessary to establish a uniform, healthy stand of specified grasses in all areas required.

After grass has started, all areas and parts of areas which fail, for any reason, to show a uniform stand of grass, shall be re-sodded or be seeded repeatedly by the Contractor until all acres are covered with a satisfactory stand of grass of the varieties specified. The Engineer shall determine when a uniform, healthy grass area is established. There shall be no final acceptance of grass areas prior to ninety (90) of placing sod of seed.

50.01.4 METHOD OF MEASUREMENT

Measurement for payment for loaming, seeding and sodding shall be made by the Engineer and shall be the actual area of sodding or seeding in accordance with the limits and dimensions shown on the Contract Drawings or directed by the Engineer, and in accordance with these specifications.

Payment Limited for Other Areas

Payment lines shall be the length and width of actual placement of sod or loam and deed except that in no case shall said length and width between payment lines be more than that shown on the

Drawings or directed by the Engineer.

50.01.5 BASIS OF PAYMENT

Payment for this work will be made at the contract price bid per square yard for “Sodding” or the contract price bid per square yard of “Loaming and Seeding” as measured and approved for payment by the Engineer. The contract unit prices shall include the cost of all labor, materials, equipment, transportation and incidentals necessary to complete this item in accordance with the

Drawings and Specifications and to the satisfaction of the Engineer. When no item for “Loaming, Seeding and Sodding” appears in the proposal, the cost of this work shall be included in the various contract unit prices. All invoices must be emailed to NHInvoice@newhavenct.gov.

SECTION 40.19

RESET STONE CURB

40.19.1 DESCRIPTION

Work under this item shall consist of the removal, relocation, transporting and resetting of Stone Curb at the locations and to the dimensions shown on the Contract Plans and in accordance with these specifications. The relocated stone curb may be used for stepping stones, around planters, curbs or in such other manner as shown on the Contract Plans.

40.19.2 MATERIAL

1. Stone curb shall be salvaged from existing locations shown on the Contract Plans or procured from City stock piles by the Contractor.

2. Gravel for bedding shall conform to Section 2.02.02 of these Specifications

40.19.3 CONSTRUCTION METHODS

Where shown on the Contract Plans or as directly by the Engineer, all existing stone curb to be relocated shall be removed with extreme cautions and safely stockpiled for reuse. Sections rejected by the Engineer because of conditions not the fault of the Contractor shall be disposed by the Contractor.

The salvaged stone shall be relocated and set as shown on the Contract Plans. Any extra stone curb not needed for the work shall be delivered and neatly piled at Central Service

Building, 34 Middletown Avenue, New Haven, Connecticut or where directed by the Engineer within the City limits. If due to the Contractor’s operations any of the stone is damaged, the

Contractor shall replace the damaged stone curb with like curb.

The setting of the stone curb shall conform with Section 40.09.3 of these Contract

Specifications.

Where used for steps, stepping stones or planter edging, the stone shall be installed in conformance with the plans.

40.19.5 BASIS OF PAYMENT

Payment for this work will be made at the contract unit price “Reset Stone Curb” complete and in place, which price shall include all materials, equipment, tools, gravel base, and labor necessary to complete the work. Said price shall include excavation of all materials, necessary removal of all pavements and bases, the removal of existing curb to be relocated, the installation of stone curbs at the location shown on the Contract Plans the loading, transportation, unloading and piling of surplus stone curb as specified or directed the replacement of any pavement removed and all incidental work necessary for the complete installation of the relocated and reset stone as specified.

When no item for “Reset Stone Curb” appears in the proposal, the cost of this work shall be included in the various contract unit prices.

All invoices must be emailed to NHInvoice@newhavenct.gov.

SECTION 20.08

UNCLASSIFIED EXCAVATION

20.08.1 DESCRIPTION

Unclassified excavation shall consist of the removal and satisfactory disposal, in the manner herein required, of all material other than water taken from within the limits of the work contracted for, the removal of which is necessary for the construction of the embankment, subgrade, shoulders, slopes, entrances, gutters and other miscellaneous construction, to the dimensions and limits shown on the plans or as ordered by the Engineer. It shall also include the disposal of surplus or unsuitable material.

20.08.2 MATERIALS NOT APPLICABLE

20.08.3 CONSTRUCTION METHODS

Unclassified excavation shall be made in conformity with the requirements of the plans.

The slopes of earth cuts shall be smooth, neat and true to the lines given or as directed.

Stumps, trees, sod, weeds, and material that will not compact under rolling shall not be placed in embankments, but shall be disposed of as directed by the Engineer.

Placement of Excavated Material: Except as specifically provided elsewhere herein, suitable material removed from the excavation shall be used as directed in the formation of embankments, subgrade, shoulders, etc., and at such other places as may be required.

When embankments are to be constructed on existing slopes steeper than 1 vertical to 3 horizontal, the slope of the existing ground on which the embankment is to be placed shall be plowed deeply or cut into steps before the filling is begun.

Embankments are to be constructed of earth, rock, or a mixture of earth and rocks, deposited in successive layers for the full width of the embankment. Except, as herein after permitted, the depth of each layer shall not be more than 12 inches before compaction. Each layer shall be leveled off by the use of blade graders or bulldozers with adequate power for the work involved. The entire area of each layer shall be compacted by distributing the hauling over the area, by the use of tread type equipment, by power rollers weighing not less than 10 tons, or by other mechanical means satisfactory to the Engineer.

Compactions shall be continued until each layer is thoroughly consolidated for its full width.

The dry density of each layer after compaction shall not be less than 90 percent of the dry density achieved by the A.A.S.H.O. Method T-99 for that soil. Depending on the material and weather conditions, it may be necessary to supplement mechanical compaction methods by control of moisture in the material.

No stone over 5 inches in its greatest dimensions shall be placed within 12 inches of the subgrade. The subgrade shall be the bottom of the pavement base course.

Surplus Excavated Material: All surplus excavated material shall be used as required to uniformly widen embankments, to flatten slopes, to fill low places in the right-of-way, or for such other purposes as the Engineer may direct. Any surplus or unsuitable material not required, or permitted to be used for such purposes shall be removed from the limits of the work and deposited at such point or points as the Engineer may direct on other property owned by the City of New Haven. Material shall be deposited and spread uniformly as directed by the Engineer, within the limits of the area designated by him to receive the surplus material.

20.08.4 METHOD OF PAYMENT

Payment lines for “Unclassified Excavation” shall coincide with the slope and subgrade lines as shown on the plans or as ordered.

The amount of unclassified excavation will be determined by the method of average end areas.

20.08.5 BASIS OF PAYMENT

Unclassified excavation will be paid for at the contract units price per cubic yard for

“Unclassified Excavation”, which price shall include all equipment, tools, transportation and labor incidental to the completion of the excavation, the formation and compaction of embankments and the disposal of surplus or unsuitable material in accordance with provisions of the plans and of these specifications. All invoices must be emailed to NHInvoice@newhavenct.gov.

3.04.03

SECTION 3.04

PROCESSED AGGREGATE BASE

3.04.01-Description

3.04.02- Materials

3.04.03-Construction Methods

3.04.04-Method of Measurement

3.04.05-Basis of Payment

3.04.01—Description: The base shall consist of a foundation constructed on the prepared subbase or subgrade in accordance with the lines, grades, compacted thickness and typical cross-section as shown on the plans.

3.04.02—Materials: All materials for this work shall meet the requirements of Article M.05.01.

3.04.03—Construction Methods: The same type of coarse aggregate shall be used throughout a

Project unless otherwise permitted by the Engineer.

Prior to placing the processed aggregate base, the prepared subbase or subgrade shall be maintained true to line and grade, for a minimum distance of 200 ft in advance of the work. The aggregate courses shall not be placed more than 500 ft ahead of the compaction and binding operation on that particular course.

The processed aggregate base shall be spread uniformly by a method approved by the Engineer.

The thickness of each course shall not be more than 4 in after compaction, unless otherwise ordered.

After the aggregate is spread, it shall be thoroughly compacted and bound by use of equipment specifically manufactured for that purpose. Rollers shall deliver a ground pressure of not less than

300 lbs/in of contact width and shall have a weight not less than 10 tons. Vibratory units shall have a static weight of not less than 4 tons. Water may be used during the compaction and binding operation and shall be applied from an approved watering device. The compacting and binding operation shall begin at the outside edges, overlapping the shoulders for a distance of not less than 6 in and progress towards the middle, parallel with the centerline of the pavement. The work shall cover the entire surface of the course with uniform overlapping of each preceding track or pass. Areas of super-elevation and special cross slope shall be compacted by beginning at the lowest edge and proceeding towards the higher edge, unless otherwise directed by the

Engineer. The compacting and binding operation shall be continued until the voids in the aggregates have been reduced to provide a firm and uniform surface satisfactory to the Engineer.

The amount of compactive effort shall in no case be less than 4 complete passes of the compacting and binding operations. All aggregate shall be completely compacted and bound at the end of each day's work or when traffic is to be permitted to operate on the road. The dry density of each layer of processed aggregate base after compaction shall not be less than 95% of the dry density for that material tested in accordance with AASHTO T 180, Method D.

Should the subbase or subgrade material become churned up or mixed with the processed aggregate base at any time, the Contractor shall, without additional compensation remove the mixture. The Contractor shall add new subbase material, if required, and reshape and recompact the subbase in accordance with the requirements of Article 2.12.03. New aggregate material shall be added, compacted and bound, as hereinbefore specified, to match the surrounding surface.

Any surface irregularities which develop during, or after work on each course, shall be corrected by loosening material already in place and removing or adding aggregate as required. The entire area, including the surrounding surface, shall be re-compacted and rebound until it is brought to a firm and uniform surface satisfactory to the Engineer.

3.04.04—Method of Measurement: Processed Aggregate Base will be measured horizontally in place after final grading and compaction. Materials placed beyond the horizontal limits indicated on the plans will not be measured for payment.

The total thickness shall be as indicated on the plans, or as ordered by the Engineer, within a tolerance of -3/4 in to +1/2 in. Measurements to determine the thickness will be taken by the

Engineer at intervals of 500 ft or less, along lanes, and shall be considered representative of the lane. For the purpose of these measurements, a shoulder will be considered a lane.

If a thickness measurement is taken and found deficient, additional measurements considered necessary by the Engineer will be taken to determine the longitudinal limits of the deficiency.

Areas not within allowable tolerances shall be corrected, as ordered by the Engineer, without additional compensation to the Contractor.

3.04.05—Basis of Payment: This work will be paid for at the Contract unit price per cubic yard for "Processed Aggregate Base,'· complete in place, which price shall include all materials, tools, equipment and work incidental thereto.

Pay Item Pay Unit

Processed Aggregate Base c.y.

SECTION 3.05

PROCESSED AGGREGATE

3.05.01—Description: Work under this item shall consist of furnishing, placing, shaping and compacting processed aggregate to be used for back-up to bituminous concrete overlays in areas shown on the plans or where directed by the Engineer.

3.05.02—Materials: The material for this item shall meet the requirements of Article M.05.01, except that coarse aggregate shall be broken stone, and fine aggregate shall be stone sand, screenings, or a combination thereof.

3.05.03—Construction Methods: The material shall be placed, shaped, and compacted in a single continuous operation to the lines, grades, and cross slopes shown on the plans or as directed by the Engineer. Only the amount of material that can be placed, shaped, and compacted during the work shift shall be placed. No excess loose material shall be left along the edge of road.

Compaction will be by vibratory equipment determined to be acceptable to the Engineer prior to the start of the work. No specific percent of compaction is required; however, no loose material shall be evident after completion of compaction as approved by the Engineer.

During the hauling and placing operations, the Contractor shall immediately remove any material dumped or spilled on the shoulders or pavement.

It shall be the Contractor's responsibility to maintain and restore any eroded areas to the required line, grade, and cross slope with approved material and to keep the areas in acceptable condition until the construction work is considered complete by the Engineer.

3.05.04—Method of Measurement: The quantity of processed aggregate to be included for payment will be determined by the net weight, in tons, measured in the hauling vehicles. Scales shall be of a type satisfactory to the Engineer and shall be sealed by the Department of Consumer Protection at the expense of the Contractor, as often as the Engineer may require. When required, weighing shall be done in the presence of a Department representative.

3.05.05—Basis of Payment: This material will be paid for at the Contract unit price per ton for

“Processed Aggregate”, complete in place, which price shall include all materials, equipment, tools, and labor incidental thereto.

Pay Item Pay Unit

Processed Aggregate ton

5.07.03

SECTION 5.07

CATCH BASINS, MANHOLES AND

DROP INLETS

5.07.01-Description

5.07.02-Materials

5.07.03-Construction Methods

5.07.04-Method of Measurement

5.07.05-Basis of Payment

5.07.01—Description: Work under this heading shall include the construction of all catch basins, junction boxes, manholes and drop inlets (and also the alteration, reconstruction or conversion of such existing structures) all in accordance with the lines, grades, dimensions and details shown on the plans, or as ordered, and in accordance with the provisions of these specifications for the various materials and work which constitute the completed structure.

When it becomes necessary to increase the horizontal dimensions of manholes, catch basins, junction boxes and drop inlets to sizes greater than those shown on the plans in order to provide for multiple pipe installations or large pipes or for other reasons, the Contractor shall construct such manholes, catch basins and drop inlets to modified dimensions as directed by the Engineer.

5.07.02—Materials: The materials to be used in the construction shall be those indicated on the plans or ordered by the Engineer and shall meet the requirements in Article M.08.02.

Protective compound material shall be as specified in Article M.03.09.

Galvanizing shall be as specified in Article M.06.03.

Mortar shall be as specified in Article M.11.04.

Pervious material shall be as specified in Article M.02.05.

Geotextile shall be of a type appearing on the Department's Qualified Products List for

Geotextiles, as referred to in Subarticle M.08.01-19.

5.07.03—Construction Methods: These structures shall be constructed in accordance with the requirements contained herein for the character of work involved. The provisions of Article

6.02.03 pertaining to bar reinforcement shall apply except that shop drawings need not be submitted for approval, unless called for on the plans or directed by the Engineer. Welding shall be performed in accordance with the applicable sections of the AWS Structural Welding Code, D1.1.

The surfaces of the tops of all catch basins, junction boxes and drop inlets shall be given a coat of protective compound material immediately upon completion of the concrete curing period at the rate of .04 gal./s.y.

All masonry units shall be laid in full mortar beds.

Metal fittings for catch basins, junction boxes, manholes or drop inlets shall be set in full mortar beds or otherwise secured as shown on the plans.

Inlet and outlet pipes shall extend through the walls for a sufficient distance beyond the outside surface to allow for satisfactory connections, and the concrete or masonry shall be constructed around them neatly to prevent leakage along their outer surfaces. The pipe shall be cut flush with the inside face of the wall, or as shown on the plans.

When constructing a new drainage structure within a run of existing pipe, the section of existing pipe disturbed by the construction shall be replaced with new pipe of identical type and size extending from the drainage structure to the nearest joint of the existing pipe.

Pervious material shall be used for backfilling the upper portion of the excavation made for catch basins and drop inlets down to the elevation of the invert of the outlet pipe but in no case to a depth greater than 3 ft below the top of the structure. Drainage openings shall be formed in the four walls of the structure at or immediately above the bottom of the pervious backfill to convey subsurface drainage. The openings shall be covered with geotextile. Depending on the masonry used in the walls, such openings shall be formed by the insertion of 2 in pipes, omission of a header or brick by leaving 2 open vertical joints in the masonry.

Frames, covers and tops which are to be reset shall be carefully removed from their present beds, the walls or sides shall be rebuilt to meet the requirements of the new construction and the tops, frames and covers reset, or the grates or covers may be raised by extensions of suitable height approved by the Engineer.

Extensions shall not be used on catch basins or drop inlets at pavement low points or where adjacent curbing is being raised. Extensions for catch basins or drop inlets shall be tack welded to the frame in four locations approximately at the mid points of each side of the frame. If the frames, covers or tops are broken or so damaged as to be unfit for further use, they shall be replaced with new, sound material meeting the above requirements for the material involved.

5.07.04—Method of Measurement: Construction, reconstruction and conversion of catch basins, manholes and drop inlets will be measured as units.

The depth of a unit shall be the total depth, measured from the highest point of the grate or cover to bottom of floor slab.

Conversion of catch basins to catch basins of the type specified or to manholes, as the case may be, will be measured for payment as a unit including excavation, cutting of pavement, removal and replacement of pavement, pervious material, backfill and all necessary alterations to the walls and furnishing and setting the frame and grate or cover, whichever applies.

There will be no measurement or direct payment for the application of the protective compound material, but the cost of this work shall be considered as included in the general cost of the work.

Resetting tops, frames and covers will be measured as units.

Replacement of tops, frames and covers will be paid for as a unit for resetting plus the unit for catch basin top or manhole frame and cover.

When resetting tops, frames and covers, there will be no measurement for excavation; cutting, removal and replacement of pavement; pervious material and backfill.

Measurement for payment for work and materials involved with installing pipes to connect new drainage structures into a run of existing pipe will be as provided for under the applicable

Contract items.

5.07.05—Basis of Payment:

1.Excavation will be paid for as "Trench Excavation'' in accordance with the provisions of Article

2.05.05.

2. Catch Basins, Junction Boxes and Manholes having a depth not over 10 ft will be paid for at the

Contract unit price each for “Junction Box”, “Catch Basin,” of the type specified, or “Manhole,” of the type specified, complete in place, which price shall include all materials, equipment tools, and labor incidental thereto.

3. Catch Basins, Junction Boxes and Manholes having a depth of more than 10 ft will be paid for at the Contract unit price for “Catch Basin Over 10 Feet Deep,” Junction Box Over 10 Feet Deep,” or

“Manhole Over 10 Feet Deep,” of the type specified, complete in place, which price shall include all materials, equipment, tools, and labor incidental thereto.

4. Drop Inlets will be paid for at the Contract unit price each for “Drop Inlet,” of the type specified, complete in place, which price shall include all materials, equipment, tools, and labor incidental thereto.

5. Reset Units be paid for at the Contract unit price each for "Reset Manhole,"

"Reset Catch Basin," or "Reset Drop Inlet," of the type specified, respectively, complete in place, which price shall include excavation, pervious material, backfill, cutting of pavement, removal and replacement of pavement structure, and all materials, equipment, tools and labor incidental thereto, except that when the work requires reconstruction greater than 3 ft, measured vertically, then the entire cost of resetting the unit will be paid for as extra work in accordance with the provisions of Article 1.04.05.

6. Manholes, Catch Basins, and Drop Inlets, constructed to modified dimensions as directed by the

Engineer, will be paid as follows:

Where the interior floor area, as measured horizontally at the top of the base of the completed structure, does not exceed 125% of the interior floor area as shown on the plans for that structure, the structure will be paid for at the Contract unit price for "Manhole," "Catch Basin,'' or "Drop

Inlet'' of the type specified. The increase in the unit price for the individual structure shall be in direct proportion to the increase of the completed interior floor area over the interior floor area as shown on the plans for that structure. Such increased unit price shall include all materials, equipment, tools, and labor incidental to the completion of the structure.

Where shown on the plans or where directed by the Engineer, catch basins shall be constructed with paved inverts and no sumps. Paved inverts in catch basins without sumps shall be formed as shown on the plans for manholes. These will be paid for as catch basins of the type specified, as provided above.

7. Pervious Material and Geotextile will not be paid for directly, but the cost thereof shall be included in the Contract unit price each for the type of drainage structure where used.

8. Frames, Covers and Tops when required in connection with reset units, will be paid for at the

Contract unit price each for such "Manhole Frame and Cover" or "(Type) Catch Basin Top,'' complete in place, including all incidental expense; or when no price exists, the furnishing and placing of such material will be paid for as extra work. When the catch basin top has a stone or granite curb in its design, this curb or inlet shall be included in the cost of the top.

9. Conversion of drainage structures will be paid for at the Contract unit price each for "Convert Catch Basin to (Type) Catch Basin," "Convert Catch Basin to Manhole," or

"Convert of Manhole to Catch Basin," complete in place, which price shall include excavation, cutting of pavement, removal and replacement of pavement, pervious material, backfill, all alterations to existing catch basin or manhole, all materials including catch basin frame and grate of the type specified, or manhole frame and cover, all equipment, tools, and labor incidental thereto.

The maximum change in elevation of frame under these items shall not exceed 3 ft. Greater changes if required will be paid for as extra work, in accordance with the provisions of Article l.04.05, unless otherwise provided.

Pay Item Pay Unit

(Type) Catch Basin ea.

(Type) Catch Basin Over 10’ Deep ea.

(Type) Drop Inlet ea.

Manhole (Type) ea.

Manhole (Type) Over 10’ Deep ea.

Reset Catch Basin (Type), Drop Inlet (Type), Reset Manhole ea.

Manhole Frame and Cover ea.

Convert Catch Basin to (Type) Catch Basin ea.

Convert Catch Basin to Manhole ea.

Convert Manhole to Catch Basin ea.

(Type) Catch Basin ea.

(Type) Junction Box ea.

(Type) Junction Box – Over 10’ Deep ea.

SECTION 30.11

SUPPLY AND SET NEW, OR RESET EXISITING MANHOLE, CATCH BASIN OR

DROP INLET FRAME, GRATE OR COVER, AND GRANITE CURB INLET TO

EXISITING STRUCTURE

30.11.1 DESCRIPTION

The Contractor shall supply and set new, or reset existing catch basin or drop inlet frames, grates, and granite curb inlets, or manhole frames and covers to existing or new grades all as shown on the plans and/or as directed by the Engineer. A frame and cover or grate, and granite curb inlet will be considered as a group under this section.

When the new grade is greater than three feet above the existing grade, the work and material required to build up the walls or sides of the existing structure, so the top of the structure will be of the required size or shape to receive the group at the new grade, will not be considered under this section, but will be considered under Section 30.08, “After Existing Manhole, Catch Basin, or Drop Inlet,” of these contract specifications.

30.11.2 MATERIALS

The materials to be used in the construction shall be those indicated on the plans or ordered by the Engineer and they shall conform to the requirements of Sections 2.07, 2.08, 2.09, 30.5 and 30.7 wherever applicable.

Cast Iron, for frames and covers shall conform to American Society of Testing Materials

(ASTM) Standard Specification for Gray Iron Castings, ASTM Designation A 48 Class 25 B for frames and 30 B for covers.

Steel for catch basins shall be noted in the plans.

Paint shall be red lead past in oil conforming to AASHO M-71 and finish coat shall be semi-green enamel conforming to the Connecticut Department of Transportation Specification Form 811

Section M.07.14(2) Color #510, page 551.

30.11.3 CONSTRUCTION METHODS

The frame, cover, or grate and granite curb inlet shall be removed from their present bed.

They shall be stored safely at the site if they are to be reset. If they are not to be reused, they shall be delivered to the City at 34 Middletown Avenue by the Contractor.

When specified on the plans, new frames, grates, covers and granite curb inlet shall be supplied by the Contractor and shall conform to the Standard City of New Haven Details and

Specifications.

Where the top of the structure is not of the required size or shape to receive the frame or granite curb inlet, the Contractor shall reconstruct and reinforce the structure so the frame or granite curb inlet will have full bearing on the structure. Frames and granite curb inlets shall be set in an even bed of mortar.

30.11.4 METHOD OF MEASUREMENT

Each manhole, catch basin or drop inlet to which a new group has been supplied and set, or existing group reset, will be measured as a unit.

30.11.5 BASIS OF PAYMENT

Payment under this item will be as follows:

a) Each manhole, catch basin or drop inlet to which a new group has been supplied and set, shall be paid for at the contract unit price for “Supply and Set New Group to Existing Manhole, Catch Basin or Drop Inlet”, or

b) Each manhole, catch basin or drop inlet which has had its existing group reset shall be paid for at the contract unit price for “Reset Existing Group to Existing Manhole, Catch Basin or

Drop Inlet”, Complete in place which price shall include all materials (including new frame, cover or grate and granite curb inlet when specified), equipment, and tools and labor incidental thereto, all in accordance with the plans and specifications and as directed by the Engineer.

The Contractor’s attention is called to the fact that any existing pavement, curbing or sidewalk damaged during the process of this work shall be replaced in accordance with these contract specifications and said cost shall be included in the contract unit price for setting or resetting, and no additional payments will be made under any other item or work.

The Contractor’s attention is called to the fact that any frames, grates, covers or granite curb inlet damaged during the resetting operation will be replaced by the Contractor at no extra cost to the

City of New Haven. All invoices must be emailed to NHInvoice@newhavenct.gov.

SECTION 40.11

REINFORCED CONCRETE DRIVEWAYS

40.11.1 DESCRIPTION

Reinforced concrete driveways shall be made with Class “B” AE concrete with reinforcing steel at applicable locations, constructed on the prepared base in accordance with the dimensions and details shown on the plans or as ordered and in conformity with these contract documents.

40.11.2 MATERIALS

1. Concrete shall conform to the requirements for Class “B” AE concrete in Section 2.07 of these specifications.

2. Reinforcing steel shall conform to the requirements of Section 2.11 of these specifications and shall be the sizes shown on the drawings.

3. Bituminous joint filler shall conform to Section 2.15 of these specifications for the type shown on the plans.

4. Gravel shall conform to Section 2.02.2 of these specifications.

40.11.3 CONSTRUCTION METHODS

Construction methods will conform to the Connecticut Highway Department Standard

Specifications From 814, Article 4.01.03.

40.11.4 METHOD OF MEASUREMENT

Measurement for payment of Reinforced Concrete Driveway shall be made by the actual number of square yards of payment completed and accepted by the Engineer, in accordance with the limits and the dimensions shown on the contract drawings, or as determined by the Engineer.

40.11.5 BASIS OF PAYMENT

Payment for this work will be made at the contract unit price per square yard for “Reinforced

Concrete Driveway” as measured and approved for payment by the Engineer. Said payments shall include the cost of all labor, materials, tools, equipment and appliances incidental thereto, all excavation below the finish grade of the driveway, backfilling, disposal of surplus material and gravel base. All invoices must be emailed to NHInvoice@newhavenct.gov.

Note to Contractor

The Engineer may order the use of Type III High Early Strength cement in place of Type IIa as specified in 2.07 of the Material Section of these specifications. The use of High Early cement shall be at no additional expense to the City of New Haven.

LENGTH OF CONTRACT

The length of the contract as a result of this bid will be for one (I) year commencing

July 1, 2026 through June 30, 2027. The City reserves the right to cancel said contract without cause, with a 30-day written notice.

PERMANENT ROAD PATCHING

CPN: 20-115-05

Specification

The work under bid shall consist of providing a Permanent Road Patch in areas as directed.

In accordance with City Standards identified for such work: reference is made to City

Standard Details NH-01, NH-01A, NH-20, NH20A, NH20B, and NH20-C.

LOCATIONS:

ADDRESS BETWEEN