WPC 2QB$R ZCourierw RomanCourierCourier BoldCourier Italic@`7@HP LaserJet 4HPLAS4.PRS 4dp@sQ\*"P@lr5ddd,Oed6X@`7@s4ddd,鑡d `7r5ddd,d6Nhez7HF6裷p=^Y[Xð6SQV&t18 <t &:uCF&? t &?.tddddddddddddddddddddddddddddddddddddddddNEssEX`AT`````6=`:=`:AATT`BBs``uEssErkkAT`:"`soh`kss`!|dHPLAS4.PRS 4?f\  P6G;\*"P?P2r7ZCourierCourier Boldp x (#%'0*,.8135@8:, P age,  s5  F ooter, B , E dit. Delete the "Project Name (ftr B)" text and replace it  s5 with the name of the project (bolded) . , until you arrive at the document text.(# D.The Guide Specifications are being reviewed and revised. Your technical comments on any guide spec would be greatly appreciated. Also, any specs that are written "from scratch" that would benefit others could be sent to either Dion Dishong or Lori Quayle, RS110.(#  s5  DRAWING DATA REQUIRED: Use the following standard drawings as appropriate; add location and detail drawings as needed:(# 1.Drawing No. 021411: Typical Dry Well Surface Drainage(# 2.Drawing No. 021412: Typical Dry Well Roof Drainage(#  s4  REVISIONS OF THIS SECTION:  r5o  CSI format, editorial changes: 4/97 Metric: Technical Update: 9/91 POINT OF CONTACT: Mary Anne Belding Phone: (303) 2369521d0*(( XM s4 #d `7#`4!(#UWELLS Project Name (ftr B)` (#T[4/97] .02241   b-SECTION 02241``>@@C  HLQ!!V!!V!!V!!V!!V(#! */DRY WELLS PART 1: GENERAL 1.1SUMMARY(# A.Section Includes: Furnishing and installing dry wells.(# B.Related Sections:(# ************************************************** DELETE EITHER 01009 OR 01010. EITHER SECTION 01330 OR 01458 MUST BE USED WHEN 01010 IS USED. ************************************************** General Information and Requirements(#`(#MSection 01009 Summary of Work(#`(#MSection 01010 Certificates(#`(#MSection 01331 Minor Concrete(#`(#MSection 03306 Structural Concrete(#`(#MSection 03310 Roof Drainage Piping System(#`(#MSection 15495 1.2SUBMITTALS(# A.General: Submittals shall be according to [Section 01009 General Information and Requirements] [Section 01330 Submittal Procedures] [and] [Section 01331 Certificates].(# B.Manufacturer's Literature: Submit three copies of the manufacturer's descriptive data for the rigid insulation.(# C.Shop Drawings: Submit three copies of the shop drawings for the grate and frame to be used on this project.(# D.Certificates of Conformance: Submit three copies of written certification from the supplier of the Contractorfurnished gravel aggregates to be used on this project that they conform to the requirements of this specification section. (# 1.3QUALITY ASSURANCE(# A.Failure Criteria: Not limited to the following: Units that are warped, broken, cracked, or spalled are not acceptable.(# 1.5PROJECT/SITE CONDITIONS(# A.Adjacent Structures: Gravel around the dry well shall remain intact after backfill for the adjacent structure has been placed. (#  PART 2: PRODUCTS 2.1MATERIALS(# A.Gravel: [Shall be from [1/2] to [2 1/2] inches maximum diameter and shall be free from excessive amounts of fines, dust, sand, or clay.] [The gravel used in the filter pack around the dry well shall have a minimum crosssection 5% larger than the perforations in the concrete sections.] (# }&0*s's'ԌB.Grate: Shall be [[Standard Convex] [Beehive Grate] [____] with frame, gray iron, according to ASTM A 48, Class 35B, of uniform quality, free from blowholes, shrinkage, distortion, and shall be smooth and well cleaned by shotblasting.] (# C.Precast Perforated Concrete Sections: Shall have minimum 1 inch diameter perforations spaced no greater than 2 ft apart in circumference and 1 ft in height. The overall diameter of the section shall be no less than 4 ft nor greater than 5 ft. The sections shall be designed so that they key together at the joint and they shall conform to ASTM C 478.(# D.Rigid Insulation: Shall be extruded polystyrene rigid foam insulation [of thickness according to the drawings] [with a minimum R value of 5.0] and [ a minimum compressive strength of [60 psi], complying with ASTM C 578.(# E.Concrete: Shall be according to [Section 03306 Minor Concrete.] [Section 03310 Structural Concrete.](# F.Geotextile Filter: Shall be synthetic polymer fibers, composed of at lease 85% by weight of polyolephins, polyesters, or polyamides, tensile strength of 80 lb according to ASTM D 1682, puncture strength of 25 lb according to ASTM D 751, a burst strength of 130 psi according to ASTM D 3786, trapezoid strength of 25 lb according to ASTM D 1117, and with apparent opening size less than 0.6 mm.(# 2.2FABRICATION(# A.Precast Sections: Shall be fabricated to the dimensions shown in the drawings within casting tolerances. Concrete shall be minimum 28 day compressive strength of 3000 psi.(# 2.3MIXES(# A.Concrete Mix Design: Shall be according to [Section 03306 Minor Concrete.] [Section 03310 Structural Concrete.](# 2.4SOURCE QUALITY CONTROL(# A.Concrete Testing: Shall be according to [Section 03306 Minor Concrete.] [Section 03310 Structural Concrete.](#  PART 3: EXECUTION 3.1INSTALLATION(# A.[Excavation:] [Drilling:] Dry holes shall be [excavated] [36 inches in diameter] [drilled] to a depth of [40 ft] [without the use of drilling mud.] [Drilling] [Excavating] to a depth greater than the water table [plus [5] ft will not be] [allowed.] [required.](# B.Compaction: The bottom of the hole shall be compacted to existing densities before the footing is poured. Should noncompactable material be encountered, the hole shall be excavated an additional two feet and backfilled with gravel specified in Part 2 before being compacted. After the dry well is installed, the unclassified fill material over the dry well shall be compacted to the density of the surrounding soil.(# C.Concrete: Shall be according to [Section 03306 Minor Concrete.] [Section 03310 Structural Concrete.](#}&0*s's'ԌD.Precast Perforated Concrete Sections: Shall be installed, plumb in the hole. Holes for drain pipe inlets shall be neatly cut or broken in the rings so that the pipes can be grouted in place before the gravel pack covers.(# E.Rigid Insulation: Shall be installed as indicated on the drawing, to completely cover the concrete top. Backfill shall be placed so as not to disturb the foam.(# F.Gravel: The [drilled] [excavated] hole shall be filled with the specified gravel to a depth of [2 inches above the bottom on the concrete apron.](# G.Precast Concrete Lid: Shall be installed to cover the rings and support the fill and loads above.(# H.Grate: Shall be installed as shown on the drawings.(# 3.2FIELD QUALITY CONTROL(# A.Inspection: The interior and exterior of the dry well will be inspected and approved by the Contracting Officer before backfill is placed. (# B.Testing: The Contractor shall coordinate testing of piping systems required under Section 15495 Roof Drainage Piping Systems, before placing precast concrete lid and backfill.(#  PART 4: MEASUREMENT AND PAYMENT 4.1METHOD OF MEASUREMENT(# ***************************************************** WHEN A "LUMP SUM" CONTRACT IS USED, DELETE THE TITLE PART 4: MEASUREMENT AND PAYMENT, AND BOTH ARTICLES FROM THIS SECTION. MEASUREMENT AND PAYMENT WILL BE ADDRESSED IN PART 4 OF SECTION 01009 GENERAL INFORMATION AND REQUIREMENTS OR SECTION 01010 SUMMARY OF WORK. WHEN NOT A "LUMP SUM" CONTRACT, SELECT APPLICABLE PHRASES; USE THE "NO MEASUREMENT" PHRASE WHEN NONE OF THE PAY ITEMS IN THIS SECTION ARE INCLUDED IN THE BID SCHEDULE. ***************************************************** A.Units: The work described in this section will [not be measured for payment.] [be measured and paid for] [on a lump sum basis.] [by the number of units constructed.](# 0*s's'ԌZ4.2BASIS OF PAYMENT(# ***************************************************** WHEN NOT A "LUMP SUM" CONTRACT, SELECT APPLICABLE PHRASES; USE THE "NO DIRECT PAYMENT" PHRASE WHEN NONE OF THE PAY ITEMS IN THIS SECTION ARE INCLUDED IN THE BID SCHEDULE. WHEN NOT A "LUMP SUM" CONTRACT AND PAYMENT IS TO BE MADE UNDER THIS SECTION, SELECT APPLICABLE PAY ITEMS. DO NOT CHANGE PAY ITEM NUMBER. ***************************************************** A.Payment: [No direct payment for the work described under this section will be made. Consideration for this item shall be included in the bid price for other items of the Contract.] [Prices and payment will be full compensation for the work described in this section. Payment will be made under:](# Pay Item@ @  !&+Pay Unit(# 02241(01) Dry Well . . . . . . . . . . . . . . . . . . . . . Lump Sum(# 02241(02) Dry Well . . . . . . . . . . . . . . . . . . . . . Each(# Z 0,END OF SECTION