All earthwork, paving, materials and methods used for the construction of streets shall conform to the State Department of Transportation’s standard specifications for highway construction, with the following minimum requirements:
(A) Remove any stumps or roots larger than two inches in diameter, rocks larger than three inches and any matted roots to a depth of 18 inches below the original ground surface;
(B) Following initial site preparation, the exposed soils should be scarified to a depth of at least eight inches, moisture conditioned to within -2% to +2% of the material’s optimum moisture and recompacted to at least 95% of the material’s standard proctor maximum dry density. Moisture shall be maintained until the placement of paving. All areas which will receive pavement should be carefully proof- rolled with a loaded tandem axle dump truck prior to fill placement or construction. The owner’s representative shall determine subgrade suitability;
(C) Fill shall be placed in lifts not exceeding eight inches loose thickness and compacted to a least 95% of its maximum dry density;
(D) Earthworks shall be performed in such a manner so as to minimize ponding water on the subgrade. The site shall be maintained near optimum during construction;
(E) All construction signing will be done in accordance with the standards set forth in the Manual on Uniform Traffic Control Devices, 2003 edition, Rev. I, and as shown on the drawings;
(F) All street construction materials and methods shall be in accordance with the State Department of Transportation’s standard specifications;
(G) The development or owner shall employ the services of a competent geotechnical investigation firm to sample and test the in-site materials and to provide recommendations for paving sections and site work, if applicable. Actual paving sections shall be recommended by a geotechnical engineer licensed to practice in the state. Paving sections shall not be less than the minimums shown unless approved by the town. A copy of the geotechnical engineer’s recommendations and reports shall be provided to the town;
(H) The contractor shall not vary from the approved plans without the approval of the design engineer and the town;
(I) The developer, owner or contractor shall employ the services of a competent construction materials testing firm to provide quality assurance and quality control testing on all street construction activities. A copy of all test reports shall be provided to the town. The town shall have the right to request additional testing at no cost to the town if there are compelling issues or questions regarding the materials placed;
(J) The minimum testing frequency shall be as follows:
Asphalt finished | In-place density | 1 per 5,000 square feet |
Asphalt haul truck | Percent asphalt in mix | 1 per 500 tons |
Sieve analysis | 1 per 500 tons | |
Base/subbase | Moisture and density | 1 per 2,500 square feet, minimum 3 tests per lift |
Concrete | Slump, air, temp | 1 per 50 cubic yards placed or per day |
Cylinders | 1 set (4 cylinders) per 50 cubic yards or per day | |
Embankment/base | Gradation | 1 per source |
Atterberg limits | 1 per source | |
Proctor | 1 per material | |
Embankment/subgra de | Moisture and density | 1 per 2,500 square feet, minimum 3 tests per lift |
(K) The aggregate base shall be ODOT Type “A;” and
(L) Concrete for paving.
(1) Concrete shall have a 3,500 psi, 28-day compressive strength as a minimum unless noted otherwise.
Cement | ASTM C150, Type I or III, unless otherwise noted |
Course aggregate | Crushed rock, washed gravel or other inert materials conforming to ASTM C33 |
Forms | No wood rot or deteriorated wood shall be accepted |
Plywood: waterproof, resin-bonded, exterior type, face to concrete Grade B or better | |
Lumber: straight, uniform width and thickness and free from knots, offsets, holes, dents and other surface defects | |
Strips: three-fourths-inch clear white pine, surface against concrete planed | |
Form coating: industrial lubricants “non-crete” form coating, protex “pro-cote” or equal | |
Expansion joints: preformed, bituminous type STM D994, unless otherwise noted | |
Air-entraining admixture: ASTM C60 | |
Water-reducing admixture: ASTM C494 Type A, fly ash; not allowed | |
Moisture-retaining cover | Polyethylene film, or polyethylene-coated burlap meeting ASTM C171 |
Liquid-membrane curing compound: meeting AASHTO M148/ASTM C309 Type 2 or Type 1-D; white pigment or red dye | |
Reinforcing steel | ASTM A615, Grade 60, unless otherwise noted |
Welded wire fabric: ASTM A185 | |
Water | Potable, clean and free from deleterious substances |
(2) Finish surfaces to the proper line and grade as shown on the plans or as directed by the town.
(3) Paving surfaces shall receive a “burlap drag” texture and be grooved or tined to produce a skid-resistant surface.
(4) After surface finishing and as soon as practical, cover and cure the entire surface with cotton or burlap mats, impervious membrane spray or polyethylene sheeting.
(5) The contractor shall submit a placement and jointing layout plan for approval. Joint panels shall be situated so as to avoid joints within a flow line for swale.
(6) Construction joints may be approved only at locations approved by the town.
(7) Contraction joints are to be placed at a maximum of 15 feet each way as noted on the plans or as directed by the town. Contraction joints may be saw-cut or formed.
(8) Expansion joints shall be placed so as to isolate the pavement from structures or fixed objects, such as light foundations, drainage inlets and buildings.
(9) Surface tolerance shall be tested with a ten-foot straight edge between any two contact points and shall not exceed one-eighth inch. The contractor shall correct surface irregularities exceeding the aforementioned tolerance in an acceptable manner.
(10) Exclude traffic from the surface for a period of at least 14 days after the concrete is placed. The paving shall be protected from damage, staining, marring and the like.
(11) Pavement may be rejected because of unsound concrete, uncontrolled cracking, malfunctioning of the sawed joints, spalling, honeycombing, surface irregularities or insufficient thickness.
(12) Grade changes within the pavement such as crowns or valleys shall be rounded within five feet on each side of the crown or valley to provide a smooth surface.
(13) Hot and cold weather methods shall be employed as required and shall be in accordance with ACI 306.
(Prior Code, § 12-105-1) (Ord. 2016-02, passed 3-8-2016)