6-89 Grout used for rock-anchore d foundations shall be non-shrink gr out included on the MaineDOT Qualified Product List (QPL) and approved by the Resid ent. Backfill for spread footing foundations shall be Gravel Borrow meeting the requirements of Section 703.20 - Gravel Borrow. Gravel Borrow shall be place d in layers not exceeding 8 inches in depth before compaction (i.e., loose lifts). Each lay er of backfill shall be thoroughly compacted to at least 95% of the material’s maximum dry density as measured in the field by an approved method using a calibrated nuclear devi ce. All backfilling and compacting shall be in accordance with the applicable provision s of Section 206 – Structural Excavation. Before placing concrete, the required elbows of entrance condui ts, reinforcing steel and anchor bolts shall be carefully positioned in accordance with S tandard Specification 633. The anchor bolt size and the bolt circle diameter shall be dete rmined from data furnished by the supplier of the above-grade components of the highway light ing, traffic signals, and highway signing structure(s) or a s shown in the Contract Docume nts. Anchor bolts for use with breakaway couplings, longitudinally grooved-type, shall be 1-inch diameter and shall project between 2½ and 3 inches above the top of the foundation . All other anchor bolts shall be a minimum of 1-inch diameter and shall project suffici ently to accommodate the thickness of the base plus all nuts and washers. The bolt lengt h shall also be sufficient to allow clearances of approximately ½ inch below the leveling nut and ¼ inch above the top nut. At least two threads on each anchor bolt shall project bey ond the outside of the nuts holding the plumbed pole. All foundations shall be warrantied against leaning and corrosi on for two (2) years after the project is completed. If the lean is greater than 2 degrees from normal or the foundation is spalling within the first two (2) years, the Contractor shal l replace the foundation at no extra cost. The finished ground at each foundation shall be graded flush wi th the top of the foundation except at locations where the foundation is protecte d by guardrail, by curb, or is outside the clear zone in which case the foundation shall have a 3-inch reveal. If required, approved backfill material shall be added to grade the slopes a s specified. There will be no additional compensation for furnishing, placing and compacting material flush around the foundation. In all cases, the surface area around the foundatio ns shall be graded to drain away from the foundation and loamed and seeded in accordance wi th the requirements of The concrete portion of the foundations exposed to view shall h ave a troweled finish. A drainage groove shall be formed i n the horizontal surface of th e foundation. The top of the concrete foundation shall be horizontal. The above ground portion of concrete foundation surfaces shall receive an application of Type 1c penetrating silane concrete sealer from the MaineDOT QP L. The application rate and method of application shall be in accordance with the manuf acturer’s published recommendations. On surfaces to be treated, all voids shall be filled with mortar and the 6-90 entire surface shall be dressed by dry rubbing to remove marks and blemishes to present a neat appearance. The silane application shall not be done until a minimum of 14 days after casting and the surfaces shall be free of laitance, oil, grease , dirt, dust, curing compound or any other deleterious material. The temperature of the concrete shall be above 40oF and below 90oF at the time of application, or per the manufacturer’s publish ed recommendations. When the anchor bolt template is removed, the threads of the an chor bolts shall be greased and protected with a metal sleeve, held in position wit h nuts and washers to be furnished with the bolts. This thread protection shall remain in place until the pole or other equipment is installed. A copper-clad steel ground rod shall be installed when shown in the Contract Documents. 626.035 Foundations to be Modified or Removed Concrete founda tions designated to be modified or removed shall be m odified or removed as shown in the Contract Documents. Debris resulting from the modification or removal shall be remo ved from the project. Once removal has been completed, the area shall be brought to grade by addition of granular material and loam, or by loam only, depending on the extent of modification or removal as directed by the Resident. The area shall then be seeded in acco rdance with Section 618. 626.036 Precast Foundations In the absence of foundation type and size and any other foundation-specific details and information, as designed by the Department, provided in the Contract Documents, precast foundations will be permitted for 1 8- and 24-inch diameter foundations for structures less than 30-feet tall with no proje cting arms. No foundation design will be required for precast 18- and 24-inch diameter fo undations for structures less than 30-feet tall with no projecting arms. A foundation design prepared by a Professional Engineer licensed in the State of Maine will be required for al l other foundations. Where precast foundations are permitted flowable concrete fill shall be used as backfill in the annular space and placed from the bottom up. Construction of pr ecast foundations shall conform to the Standard Details and all requirements of Section 712.061 except that the concrete shall have a minimum permeability of 17 kOhm-cm and th e use of calcium nitrite will not be required. The construction requirements of Section 626.034 apply to preca st foundations used by the Contractor and their Subcontractor(s).
626.04 Method of Measurement Precast Concrete Junction Box, a nd Remove or
Modify Concrete Foundation will be measured by each unit. All conduit will be measured by the number of linear feet. Drilled shaft foundations in soil, bedrock, or anchored to bedr ock will be measured by Linear Foot. Spread footing foundations will be measured by Cu bic Yard. Grouted, rock- anchored foundations will be meas ured by Cubic Yard. Modified o r removed concrete 6-91 foundations will be measured by Each unit. Special Foundations will be measured by Each unit. The quantity of structural earth excavation to be measured for payment below grade will be the amount actually excavated from 1 foot below the bottom o f the foundation to the required foundation bottom elevation, provided the maximum allo wable horizontal dimensions do not exceed those bounded by vertical surfaces 9 i nches each side of the installation, as shown in the Contract Documents. The quantity of structural rock excavation to be measured for payment will be the number of cubic yards ac tually removed, provided the maximum allowable horizontal dimensions do not exceed those bounded by vertical surfaces specified herein.
626.05 Basis of Payment The accepted quantity and/or volume o f foundations will be
paid for at the Contract Un it Price for each type of foundation . This payment shall include: all excavation, bedrock removal, unsuitable soil excavation, co ncrete, anchor bolts, reinforcing steel, conduit within the foundation and extending 12 inches from the foundation, backfill, loam, seeding, mulching and all labor, eq uipment, and materials, necessary to complete the work. If a design is required by the Contractor, payment shall include the test boring(s), structural, and geotechnical design . The accepted quantity of junction boxes will be paid for at the Contract Unit Price Each. Payment for junction boxes shall include furnishing and install ing precast concrete or bituminized fiber boxes as designated, including that portion o f conduit extending 12 inches outside the box. Excavating and backfilling for junction boxes, foundations, and excavating, backfilling and sand bedding for conduit ducts will be considered incidenta l in the respective Contract Unit Prices and no separate payment will be made, except as her eafter provided. Excavating and backfilling as shown in the Contract Documents, or as required to overcome soft or otherwise unsuitable material, or for excavati ng rock will be paid for as provided in Section 206. Required backfill material, except san d bedding as shown on the detail Plan, will be paid for as provided in Section 304. Payment will be made for the total number of linear feet of pre wired conduit actually furnished, installed, and accepted at the Contract Price per Li near Foot. This price shall include the cost of hand digging, t renching, or plowing; furnis hing and installing the prewired conduit; and all labor, equipment and incidentals nece ssary to complete the work. The accepted quantity of ground mounted cabinet foundations wil l be paid for at the Contract Unit Price Each, which payment shall include conduit w ithin the foundation and extending 12 inches from the foundation and for loam, seeding, mulching and all incidentals necessary to complete the work. The accepted quantity of Remove or Modify Concrete Foundations will be paid for at the Contract Unit Price Each. Such price shall include disposin g of concrete removed, 6-92 backfilling with granular material, loaming, seeding, and all i ncidentals necessary to complete the work. Payment for restoration of roadway pavement, sidewalks, grass a reas and resetting curbing removed in conjunction with this work shall be consider ed incidental to the respective Contract Unit Prices for each related item except as otherwise provided. Payment will be made for the total number of linear feet of und er pavement conduit actually furnished, installed and accepted at the Contract Pric e per Linear Foot. This price shall include the cost of: furnishing and installing the condui t; excavating; furnishing special backfilling materials, pull wire, fittings, grounding and bondi ng; test cleaning interiors of conduits and all materials, labor, equipment and incidentals ne cessary to complete the work. P a y I t e m P a y U n i t
626.11 Precast Concrete Junction Box E a c h
626.21 Metallic Conduit L i n e a r F o o t
626.22 Non-metallic Conduit L i n e a r F o o t
626.221 Non-metallic Conduit, Concrete Encased Linear Foot 626.251 Non-Metallic Under Pavement Conduit Linear Foot (Schedule 80 or greater rating) 626.35 Controller Cabinet Foundation E a c h
626.36 Remove or Modify Concrete Foundation Each 626.37 Special Foundation E a c h
626.38 Ground Mounted Cabinet Foundation Each 626.411 18-inch Diameter Foundation L i n e a r F o o t
626.421 24-inch Diameter Foundation L i n e a r F o o t
626.43 30-inch Diameter Foundation L i n e a r F o o t
626.44 36-inch Diameter Foundation L i n e a r F o o t
626.451 42-inch Diameter Foundation L i n e a r F o o t
626.46 48-inch Diameter Foundation L i n e a r F o o t
626.47 54-inch Diameter Foundation L i n e a r F o o t
626.48 60-inch Diameter Foundation L i n e a r F o o t
626.501 Spread Footing Foundation C u b i c Y a r d
626.60 Grouted, Rock-Anchored Foundation C u b i c Y a r d
SECTION 627 - PAVEMENT MARKINGS
627.01 Description This work shall consist of furnishing and pl acing reflectorized
pavement lines and markings, removing pavement lines and markin gs, and furnishing and applying reflectorized paint t o curbing in reasonably close con formity with the plans and as designated.