01400

TESTING LABORATORY SERVICES

PART 1 - GENERAL

	A.	An independent testing laboratory shall be retained by the contractor and appointed by the Parish for the purpose of sampling and testing materials or performing inspections.

	B.	Cooperation of the Contractor

		The Contractor shall cooperate with the laboratory and shall:

		1.	Make available without cost samples of all materials to be tested in accordance with applicable standard specifications.

		2.	Furnish such nominal labor and sheltered working space as is necessary for testing laboratory to obtain samples at the project site.

		3.	Advise the laboratory of the identity of material sources and instruct the suppliers to allow tests or inspections by the laboratory.

		4.	Notify the laboratory sufficiently in advance of operations to allow for completion of initial tests and assignment of inspection personnel.

		5.	Notify the laboratory sufficiently in advance of cancellation of required testing operations.  The Contractor shall be responsible to the Parish for charges due to failure to notify it requirements for testing are cancelled.

PART 2 - TESTING METHODS

	A.	Test and inspections shall be conducted in accordance with the latest applicable A.S.T.M., A.C.I., A.A.S.H.T.O., or L.D.O.T.D. requirements, or the requirements of other recognized authorities.

	B.	Rejection of Materials

		1.	The laboratory shall notify the Contractor of any materials which are not in full conformance with the specifications.  The Project Engineer shall be informed of such notifications.

	C.	Test Reports

		The laboratory shall promptly submit written reports of each test and inspection made to the Parish, Project Engineer, Contractor and to such other parties the Engineer may specify.  Payment applications will not be processed until Department of Engineering receives test data for the payable items of the payment application.  If test reports are not received prior to final acceptance then there will be an automatic 50% reduction in pay for the item(s) in question.

	D.	Shoulder Material

		If test data for the shoulder material does not meet the specifications then there shall be a reduction in pay for that item by 10%.

PART 3 - PORTLAND CEMENT CONCRETE

3.1	TESTS AND INSPECTIONS

	A.	Mix Design
		1.	The laboratory shall be responsible for the design of each specified mix.

		2.	The design shall be based on a statistical analysis provided by a qualified testing laboratory or by trial batches which will be performed by the designated laboratory.  Both methods shall be in accordance with and  limited to the requirements set forth by the American Concrete Institute (A.C.I.) 318-86, Chapter 4.

		3.	Of trial batches are required, sufficient time must be given to the laboratory to perform all tests that are required.

		4.	Regardless of what method is employed, the following tests are required prior to use on a given project:

			A.S.T.M. C-136 - 	Sieve Analysis for Fine & Coarse Aggregates

			A.S.T.M. C-127 - 	Test Method for Specific Gravity & Absorption of Coarse Aggregate.

		5.	Certificates of Delivery which include test results shall be submitted by the concrete producer for cement, fly ash and additives to the testing laboratory for review.  These certificates must certify that the material conforms to the specifications.

	B.	Batch Plant

		1.	Prior to initial start-up of pavement operations for the project the testing laboratory shall visit the concrete suppliers batch plant to determine if the operation substantially conforms to the requirements of A.S.T.M. C94.  Any substandard conditions observed shall be immediately reported to the Engineer and the Contractor.

		2.	Plant inspector is not required to be present at the plant during production.  However, the Engineer may require an inspector to be provided periodically at his discretion.

		3.	The plant must be approved prior to beginning production for a given project.  This approval will be given by the Engineer and/or his representative.   Conditions for approval shall include but not be limited to the following:

			i.	A.S.T.M. C-94 (latest revision) Standard Specifications for Ready Mixed Concrete.

			ii.	Whenever fly ash is used, the plant shall have a separate silo or bin to store the fly ash.

			iii.		Prior to and periodically during construction the laboratory shall sample and test appregates proposed for use in concrete to determine their compliance with these specifications.

	C.	Roadway Inspection

		1.	The laboratory shall provide a qualified technician at the job site during all times concrete is being placed.  This technician shall be responsible to perform the required field tests and promptly notify the Contractor of any substandard materials or workmanship being incorporated in the work.

		2.	Samples of fresh concrete shall be gathered in accordance with A.S.T.M. C-172 (latest revision).  

		3.	Test for slump - A.S.T.M. C-143 (latest revision) and air content - A.S.T.M. C-173 or C-231 (latest revisions) if applicable, must be performed whenever test cylinders are taken, and more frequently when deemed necessary.

		4.	The concrete temperature shall be measured and recorded when each set of cylinders is molded.

		5.	Test cylinders shall be cast in accordance with A.S.T.M. C-31 (latest revision) as follows:

			i.	Pavements:				One set consisting of four (4)  cylinders shall be cast for each 100 cubic yards or fraction thereof.  A minimum of four (4) cylinders shall be cast per visit.

			ii.	Curbs:					One set of four (4) cylinders shall be cast in the A.M. and one set shall be cast in the P.M.  A minimum of four (4) cylinders shall be cast per visit.

			iii.	Combination Curb & Gutters:	One set of four (4) cylinders shall be cast for each 50 cubic yards or any fraction thereof.  A minimum of four (4) cylinders shall be cast per visit.

		6.	Test cylinders are to be tested in accordance with A.S.T.M.C-39 (latest revision) as follows:

				2 @ 7 days of age 
				2 @ 28 days of age

		7.	During production, if any truck of ready mixed concrete fails to conform to specifications, the Laboratory will immediately notify the Contractor and the Director of Streets and this material shall not be incorporated in the work.

		8.	Re-tempering of concrete is not permitted.

	D.	Cores for Thickness Verification

		1.	Cores shall be taken by the Laboratory no later than 30 days after the conclusion of paving operations.

		2.	A minimum of one (1) core shall be obtained from each three hundred (300) linear feet of each pavement lane.

		3.	Final locations of the cores shall be reported in a manner than is acceptable to the Engineer.

PART 4 - ASPHALTIC CONCRETE MIXTURES

	A.	Tests and Inspections:
		1.	The Contractor will be required to design the mixtures for optimum asphalt content and comply with all requirements of L.D.O.T.D. designation TR 303, Method A, however, Method B may be used when approved by the Parish's Engineer.  Mixes which have been previously approved and are current within six months may be submitted for approval subject to the same criteria as required by TR 303, Method A.

		2.	The Job Mix Formula shall be submitted for approval to the designated Parish Testing Laboratory and the Engineer, supported by appropriate design data.  No mixture shall be produced for the job until the Contractor's Job Mix Formula has been approved by the Engineer.  Approval or rejection of Job Mix Formula shall be accomplished within seven (7)  calendar days of submittal.

		3.	The Job Mix Formula will allow full range of gradation mix tolerances within the mix type specification limits.

		4.	The plant shall be so operated as to produce on a continuing basis a mixture conforming to the approved Job Mix Formula, the requirements in Table 1 of L.D.O.T.D. Section 501 and other specifications requirements.  When this is not the case, the Contractor shall begin making satisfactory adjustments or cease operations.  The Engineer may permit the Contractor to submit a new Asphaltic Concrete Job Mix for approval.

	B.	Preliminary Tests

		Prior to starting plant operations, the following materials will be sampled and/or tested by the Parish's designated Testing Laboratory:

		1.	Obtain L.D.O.T.D.  Certificates of Delivery covering asphalt cement in working tank.  (Also to be obtained on a daily basis during production.)

		2.	Obtain the refinery test report covering chemical and physical properties of the asphalt cement.  

		3.	Verify that the Anti-Stripping agent is included in the L.D.O.T.D. Qualified Products List.

		4.	Other admixtures - L.D.O.T.D.  Qualified Products List.

		5.	Aggregates - Verify that the source of aggregates to be used are included in the L.D.O.T.D. Qualified Products List.

		6.	Sample the Contractor's fine sand.  Test in accordance with A.A.S.H.T.O. T-90 to determine if PI is Zero (0).  Visually inspect Contractor's stockpile to verify absence of clay balls and excessive clay coating.
	
	C.	Validation of the Job Mix Formula

		1.	For acceptance of the Job Mix Formula, the Contractor must include the following:

			a.	Design Curves (L.D.O.T.D. TR 303)
			b.	Apparent Specific Gravity for each material employed and its source (L.D.O.T.D. TR 301)
			c.	Proposed Bin Proportions
			d.	Proposed A.C. Content (L.D.O.T.D.  TR 303)
			e.	A single recommended gradation for each specified sieve size.
			f.	% Crushed of Coarse Aggregate (if applicable).

		2.	The Job Mix Formula shall be validated during the first day's production or when enough mixture has been produced to have four (4) Marshall Stability Tests and two (2) Extraction Tests.  In order for a Job Mix Formula to be validated, the test results must meet the requirements set forth by these specifications using design criteria for each specified mix.

	D.	Tests Conducted at the Asphalt Plant

		Tests to be conducted on the hot mix material at the asphalt plant will be conducted by the Parish's Designated Testing Laboratory's technician.  All tests will be conducted in accordance with L.D.O.T.D. specifications.  Test results shall conform to the properties in Table 1 of Section 501.  A sampling plan will be utilized such that samples are taken and tested as follows:

		1.	0 to 200 tons - Full sample is taken upon which the following tests are to be conducted:

			Temperature - Read to the nearest 5 degrees.

			Extraction

				Extracted Gradation			TR-309
				% Extracted Asphalt Cement		TR-308
				% Crushed				TR-306

			Marshall Stability & Flow			TR-305
			(Two briquettes are made.)

			Unit Weight, Voids & % V.F.A.		TR-304

				Record Anti-Strip content from meters and scales.

		2.	201 tons to 400 tons - Smaller sample is taken.

			Temperature - Read to the nearest 5 degrees.

			Marshall Stability & Flow			TR-305
			(One briquette is made.)

		3.	401 tons to 600 tons - Full sample is taken.  Conduct tests as described for 0 to 200 tons.

		4.	In excess of 600 tons - Smaller sample is taken.  Conduct tests as described for 201 to 400 tons.

	E.	Mix temperatures at the time of molding the briquettes shall be within 15 degrees Fahrenheit of the mix temperature at the time of sampling.

		1.	In addition to the above, the temperature of the mix is to be taken at least once per hour, when the mix has been loaded into haul trucks and is ready to leave the plant.

		2.	If the test results during the production of a lot are outside the limits given in Table 1 of Section 501 of the Parish's Testing Laboratory, a representative shall immediately notify the Contractor's qualified technician.

		3.	When an individual  test or the average of tests representing the lot is outside acceptance limits shown in Table 1 of L.D.O.T.D. Section 501, an adjustment in unit price for the lot will be made in accordance with Table 2 of L.D.O.T.D. Section 501.
	F.	Pavement Samples

		1.	The density requirements will be for the average of all cores for each lot per project, determined in accordance with L.D.O.T.D.  TR-304.  Payment will be made in accordance with Table 2 of L.D.O.T.D. Section 501.

		2.	Samples that result in less than 1 1/4" thickness will not be tested for density.

	H.	Roadway Inspection

		Inspection of Roadway Asphaltic Concrete Work at the job site shall be performed by a qualified roadway technician furnished by the Testing Laboratory.  his duties will include, but not be limited to, the following:

		1.	Record locations, tonnage, type of mix, lot number, and other pertinent data in his daily report.

		2.	Temperatures will be checked and recorded in accordance with these specifications during the production of each lot.

		3.	Observe the general operations of the Contractor to assure compliance with all requirements.

		4.	Observe and record the tack and prime coat operations.  (Square yards covered, # of gallons used).

		5.	Determine the location of cores to be taken by the Contractor for thickness and density.

		6.	Witness the drilling or cutting of the roadway samples and deliver same to laboratory for further testing.

		7.	Witness the surface finish testing performed by the Contractor and report the findings of such testing.

		8.	Inspect all mix hauled to the roadway for any obvious deficiencies which may include uncoated aggregate, segregated mixtures, mixtures with lumps, mix not of the proper temperature, excessive moisture, color and general appearance of the mixtures.  Any loads found deficient shall be brought to the attention of the Contractor and rejected.  Also no trucks will be accepted without a haul ticket.  

		9.	Observe weather conditions and advise the Contractor of weather limitations when they apply.

		10.	Check actual yield of mixture during production to assure proper mat thickness.  The Contractor should be advised of improper thickness and corrections shall be made.

PART 5 - BASE REHABILITATION

5.1	MATERIALS

	A.	The testing laboratory shall test representative samples of materials to confirm compliance with specification.

	B.	Representative samples of pulverized base shall be tested for gradation.

	C.	Representative areas of compacted base shall be tested for compaction.

PART 6 - PRECAST CONCRETE BRIDGE

	A.	Concrete

		1.	The testing laboratory shall prepare a minimum of four (4) 6" x 12" sample cylinders for each fifty (50) cubic yards of concrete cast, with a minimum of four (4) samples cast per day.  If only one (1) element should be cast in one day's work, four (4) samples shall be prepared.

	B.	Piles

		1.	All treated piles shall be inspected by the testing laboratory for retention of preservative at the treatment facility.  Contractor shall notify testing laboratory forty-eight (48) hours in advance of this work.

		2.	The testing laboratory shall verify all pile dimensions prior to driving of piles.		

		3.	The testing laboratory shall log the driving of all piles and submit the driving logs to the Engineer and Contractor within twenty-four (24) hours after driving.  Contractor shall notify Engineer and testing laboratory twenty-four (24) hours in advance of pile driving.

	C.	Precast Concrete

		1.	The Contractor shall notify both the Engineer and the testing laboratory twenty-four (24) hours prior to castings of any concrete elements.

		2.	Reports of all laboratory and field inspections shall be furnished to the Engineer within forty-eight (48) hours after the inspection or test.  A copy of each report shall also be furnished to the Contractor and the Owner.  Reports shall otherwise be kept confidential.

						

				02510

PAVEMENT BASE & SUBBASE, RECONSTRUCTED
				
PART 1 - GENERAL

1.1	DESCRIPTION

	A.	Work Included:

		1.	Removing and replacing existing base, subbase and subgrade where required.

		2.	Breaking and pulverizing existing asphalt pavement and mixing with existing base to form new base.

		3.	Adding gravel and sand and mixing where required.

		4.	Compacting and shaping.

		5.	Stabilizing with cement or lime where noted.

1.2	DEFINITIONS

	A.	Base:		That engineered select layer of material which lies above the subbase, or subgrade as the case might be, upon which the pavement is constructed.

	B.	Subbase:	That engineered select layer of material between the subgrade and base.

	C.	Subgrade:	The existing or insitu soils upon which the subbase or base is constructed.

1.3	REFERENCED SPECIFICATIONS

	A.	Those parts of the referenced specifications which are applicable hereto shall be considered as if written herein in full.

		1.	L.D.O.T.D.:  Louisiana Standard Specifications for Roads and Bridges, 1992 Edition as amended, and the "Highway Specifications Workbook", Latest edition.

		2.	A.S.T.M.:  American Society of Testing Materials.

		3.	A.C.I.:  American Concrete Institute

		4.	A.A.S.H.T.O.:  American Association of State Highway and Transportation Officials "Standard Specifications for Transportation, Materials and Methods of Sampling and Testing".

1.4	QUALITY ASSURANCE

	A.	Use adequate numbers of skilled workmen who are thoroughly trained and experienced in the necessary crafts, and who are completely familiar with the specified requirements and the methods needed for proper performance of the work of this section.  

		1.	During all of the time that this work is in progress the Contractor must have present at the work site a foreman or superintendent who is not an equipment operator.
	B.	Use only equipment which is specifically manufactured and properly sized for the work to be performed.

		1.	Vibrating rollers cannot be used except with the written approval of the Engineer.

		2.	The gradation of the pulverized base is essential in obtaining proper compaction.  The proper gradation can generally only be obtained by the use of certain types of equipment.  A pulverizer or rotary mixer can produce the proper gradation.

PART 2 - MATERIALS

2.1	GENERAL REQUIREMENTS

	A.	Sand shall be a natural deposit or pumped material with ninety-five percent (95%) by weight falling between the No. 16 and the No. 200 screen sieve.  It shall have a maximum liquid limit of twenty-five (25) and a maximum plasticity index of six (6) and be free of trash, roots and weeds.

	B.	Sand-clay-gravel shall conform to the requirements of L.D.O.T.D. 1003.03a.

	C.	Shell shall conform to the requirements of L.D.O.T.D. 1003.03b.

	D.	Crushed stone and crushed concrete shall conform to the requirements of A.S.T.M. 2940.

	E.	Stone shall conform to the requirements of L.D.O.T.D. 1003.03d.

	F.	Cement shall conform with the requirements of A.S.T.M. C150 Type 1.

	G.	Fly ash shall conform to the requirements of A.S.T.M. C618 Class C.

	H.	Lime shall meet the requirements of L.D.O.T.D. 1018.03.

2.2	IN PLACE MATERIAL REQUIREMENTS

	A.	Reconstructed base shall be a homogeneous mixture of pulverized asphalt and base material and, when specified or noted, cementitious material, compacted to a minimum of 95% of the maximum theoretical density as determined by ASTM, D1557.

	B.	Sand used as a base or subbase material shall be compacted to a minimum of 96% of ASTM D698.

	C.	Except as included herein or as noted on the plans all work shall conform with the requirements of Part III of L.D.O.T.D.  "Standard Specifications for Roads and Bridges" and except as specified herein, density requirements shall be those specified in 301.15 of L.D.O.T.D.

PART 3 - EXECUTION

3.1	TEST SECTION

	A.	Base Mixture

		1.	Prior to beginning work the Contractor shall make one or, if directed by the Engineer, two test sections of pulverized base using the equipment and procedure that he proposes to use for the work.  The materials testing laboratory shall obtain samples of the homogeneously mixed material and run gradation and Atterburg limit tests.  Work on the base will be delayed until the Engineer has a chance to study the results of the laboratory tests but the delay shall not exceed five (5) days.

		2.	The procedure used by the Contractor to pulverize and mix the base shall produce a mixture conforming to the following requirements:

			Screen Size				Percent Passing

			2" x 2"				100% minimum
			1/2"					90% maximum
			#4					45% minimum
			#200					25% maximum

		3.	The approved percentage of material passing the screen sizes may be varied by the Engineer.

		4.	The Engineer, at his discretion, may require the Contractor to add sand and gravel to the base to be thoroughly blended into the mixture.

3.2	SCARIFYING, PULVERIZING AND MIXING

	A.	Where noted on the plans and where directed by the Engineer the existing asphalt surfacing shall be broken, pulverized, mixed with the existing base, shaped and compacted.

	B.	Unless otherwise approved by the Owner, the existing asphalt surfacing shall first be scarified and broken into pieces, then pulverized and thoroughly mixed.

		1.	Gravel or sand will be added to the pulverized base, if so directed by the Engineer, and the mixing continued until it is homogeneous.

		2.	Cement or lime, as specified, will be added at this time to the pulverized base and then thoroughly mixed with the proper amount of water.

	C.	Mixing shall be performed by a preparizer traveling pugmill or a single or multiple shaft rotary mixer capable of breaking and thoroughly mixing the asphalt, base and any added material into a uniform homogenous mixture of the gradation required and thickness shown on the plans or directed by the Engineer and when compacted of not less than six (6") inches or more than eight inches (8") in thickness.

		1.	Exercise care not to pick up any deleterious material from under the base.

		2.	The material or materials to be used to modify the existing base will be uniformly spread over the surface to be improved in the amounts specified or directed and thoroughly blended into the mixture.

		3.	The base shall be combined with lime or cement and water only by a traveling plant.  The spreading of bulk lime or cement onto the base is not permitted except with written permission of the Engineer.  This permission will not be given when a dusting problem can exist or when the roadway must be open to traffic while this operation  is in progress.

		4.	Pulverization and mixing and cement and/or lime mixing shall be separate operations.

	E.	Only six hundred (600) feet of base will be open at a time without the written permission of the Engineer.  Mixing, compaction, grading and curing shall take place before the Contractor opens up another section of base.

	F.	When not in conflict with this section the requirements of L.D.O.T.D. will govern.
	G.	When the base is modified with cement or lime the Contractor shall keep the roadbase closed to construction traffic for 72 hours.  Local traffic will be allowed on the base during this period.

3.3.	SHAPING AND COMPACTING

	A.		Potable water, in the amount required to obtain maximum compaction, shall be added and mixed into the base.

	B.	Mixing shall continue until uniformity is reached.

	C.	Compaction, shall follow directly behind the mixing without interruption and shall continue until the base is uniformly compacted to a minimum of ninety-five percent (95%) of theoretical maximum density as determined by A.S.T.M. D1557, modified proctor.

	D.	Required densities must be obtained within three (3) hours of mixing cement into the base.  If the Contractor demonstrates his ability to obtain the required density within the three hour period then the Engineer will consider enlarging the six hundred (600) foot limit.  Conversely, if the Contractor fails to obtain the required densities within three hours within the entire six hundred (600) foot limit then the Contractor shall, at no expense to the Owner, reduce the six hundred (600) foot limit to three hundred (300) feet.

	E.	The finished base shall have a smooth, uniform, closely knit surface, free from ridges, depressions or loose material.  The finished base shall conform to the thickness, lines, grades and side slopes shown on the plans.

	F.	The finished base shall be protected by the application of an asphaltic curing membrane conforming to the requirements of L.D.O.T.D. Section 506.

	G.	Prior to the application of the asphaltic cement concrete, the surface of the base where damaged shall be replaced.

	H.	The Contractor can elect to keep the base moist by watering for the first 72 hours instead of applying the asphaltic curing membrane.  The design and weight of the watering truck must be approved by the Engineer.

	I.	If more than fourteen (14) days pass between completion of the base and the application of the asphalt, an additional application of asphalt curing membrane shall be applied prior to surfacing and in accordance with L.D.O.T.D. Section 506.

	J.	Contractor shall be careful in the section of his equipment to use the lightest available in order to avoid pumping or damage to the base.

4.0	SUBBASE REPAIRS

	A.	Wherever noted on the plans or directed by the Engineer, the Contractor shall excavate and remove roadway base and subbase in order to establish a firm surface upon which to build the roadway.

		1.	Excavate to the depths shown on the plans, directed by the Engineer or, if not so noted, to a depth of 24" below the top of pavement.

		2.	Replace excavated deleterious material with sand conforming to 2.1A or such other material as directed by the Engineer.

	B.	Place sand fill in loose layers of 12" maximum thickness and compact to 97% of A.S.T.M. D698.

		1.	Do not replace or construct base until subgrade complies with density requirement.

5.0	MEASUREMENT AND PAYMENT

	A.	Breaking, pulverizing and mixing into the existing surfacing and base, shaping, compacting, curing and maintaining until surfacing is in place shall be measured by the square yard and paid for at the contract unit price for base complete in place.

	B.	Gravel, sand or shell required to be added to the base shall be measured by the cubic yard net section.  Payment for this material shall be by the cubic yard net section at the contract price or if no contract price exists then payment shall be at a mutually agreed upon price.  If no price can be mutually agreed upon then the Owner may deliver and spread upon the base the required aggregate.  There shall be no direct payment for mixing.

	C.	Cement, lime, asphalt, etc. added, mixed and compacted into the base shall be measured as indicated on the proposal and paid for at the contract unit price complete in place.

	D.	All other costs associated with the base work including curing, water etc. shall be non-direct pay items.

	E.	Subgrade replacement shall be measured by the square yard.  Payment shall be at the contract square yard price for removal and disposal of material to the depth shown on the plan (24" if not shown) and the replacement with acceptable material compacted to required density.

									02513

	ASPHALTIC CEMENT CONCRETE PAVEMENT
			
1	GENERAL

1.1	Description

	A.	Work included:

		1.	Hauling, spreading and compacting the asphaltic cement concrete to the lines, grades, sections and thicknesses shown on the plans.

	B.	Work not included:

		1.	Base repair and drainage.

1.2	Referenced Specifications

	A.	Those parts of the referenced specifications which are applicable hereto shall be considered as if written herein in full.

		1.	L.D.O.T.D.:  Louisiana Standard Specifications for Roads and Bridges, 1992 Edition as amended, and the "Highway Specifications Workbook", Latest edition (Section 501 and any related sections).

		2.	A.S.T.M.:  American Society of Testing Materials.

		3.	A.C.I.:  American Concrete Institute

		4.	A.A.S.H.T.O.:  American Association of State Highway and Transportation Officials "Standard Specifications for Transportation, Materials and Methods of Sampling and Testing".	

2	MATERIALS

	A.	Asphaltic cement concrete shall conform with all of the requirements of L.D.O.T.D. for the various types shown on the plans.  95% density shall be required in lieu of 96% as required by Silver Book & Table and in the Silver Book these be adjusted accordingly.

	B.	Recycled asphalt is disallowed for use in asphaltic mix designs for any materials being placed on parish projects per Resolution Police Jury Series No. 89-4073.

3	EXECUTION

	A.	All work shall be in conformance with the requirements of L.D.O.T.D.

	B.	All intersecting roads and streets to be constructed a minimum of 20' from the edge of roadway being overlayed, in accordance with the typical details.

	C.	Minimum turning radius of 35' (where existing conditions allow) at intersecting roads or otherwise specified by the Engineer or a representative of the Engineer.

	D.	All driveway aprons shall be a minimum of one (1) foot behind the back side of the culvert whether installed under this contract or not, and shall cover all fill material added for installation of new culverts.  If no culvert is present the minimum apron shall be three (3) feet.  Apron shall be placed at same time as surface course is placed and shall be sufficient to transition existing driveways to the edge of the road being overlayed.  Minimum driveway radius is twelve (12) feet.  (Per Resolution Police Jury Series No. 93-6042 adopted January 21, 1993).

4	MEASUREMENT AND PAYMENT

	A.	Asphalt shall be measured by the square yard and paid for at the contract unit price per square yard complete in place minimum any deduction for deficiencies.

	B.	No direct payment shall be made for 20' paving and construction of intersecting roads and driveway transitions in accordance with typical details.

	C.	If the final product reveals areas of segregation, multiple clay lumps, ravels, or any type of rough areas/deficiencies then the area(s) in question shall be removed and replaced at the contractors expense.

5	ASPHALTIC CONCRETE MIXTURE

	A.	By Resolution 89-4181 - Table 1 of "Section 501-Asphaltic Concrete Mixtures" is replaced by Exhibit A.

			

				02520

PAVEMENT MARKINGS AND BARRICADES
			
PART I  -	GENERAL

1.1	MAINTENANCE OF TRAFFIC

	A.	Provisions, approved by the Engineer, for maintaining traffic throughout the length of the project and life of the contract must be made by the Contractor.

	B.	The Contractor shall keep the portion of the project being used by public traffic, whether through or local traffic, in such condition that traffic (including mail delivery) will be adequately accommodated.  He shall furnish, erect and maintain barricades, warning signs and delineators, and shall provide flagmen and pilot cars in accordance with the plans and the M.U.T.C.D.  He shall also provide and maintain in a safe condition all required temporary approaches or crossings, intersections with roads, streets, business, parking lots, residences, and garages.

	C.	The Contractor shall place no more than one-half (1/2) of each days work in one lane and the remainder in the adjacent lane.

	D.	At the end of each days operation, temporary pavement marking shall be placed and proper signs and barricades displayed.  During the period that all lanes are open to traffic, the Contractor shall neither store material nor park equipment on roadway shoulders.

	E.	The Contractor shall be responsible for supplying, maintaining and moving, when necessary, adequate barricades, warning signs and lights to safely inform the traveling public as to the location of the work at all times.

	F.	No direct payment shall be made for providing for an maintaining traffic as required herein, except as provided in the proposal.

1.2	SIGNS, BARRICADES, PAVEMENT MARKINGS AND MARKERS

	A.	Both temporary and permanent shall conform to latest L.D.O.T.D. specifications and the M.T.U.C.D.

	B.	Pavement shall be permanently marked as shown on the plan.

		1.	Thermoplastic pavement markings shall be reflectorized and in conformance with 1992 L.D.O.T.D. Standard Specifications.

		2.	Location, size and color as shown on the plan.

		3.	Painted traffic striping in accordance with 1992 L.D.O.T.D. Standard Specifications.

PART II -	MEASUREMENT AND PAYMENT

	A.	Signs, barricades, pavement markers, relocation of traffic, permanent markings, flagmen and all related work shall be measured at a lump sum item and paid for at the contract lump sum price complete.

					02525

PAVEMENT SHOULDERS, AGGREGATE
			
PART 1	GENERAL

1.1	Description

	A.	Work included:   Removing surface vegetation, casting, spreading, shaping and compacting aggregate shoulder material.

	B.	Work not included:

		1.	Relocating ditches, filling existing ditches.

PART 2 	MATERIALS

	A.	Shoulder material shall be one of the types of aggregate material listed below.

		1.	Crushed stone L.D.O.T.D. 1003.04
		
		2.	Sand clay gravel L.D.O.T.D. 1003.04

		3.	Crushed concrete A.S.T.M. 2940

		4.	Reef shell A.S.T.M. 1003.03b modified to contain a maximum of 50% clam by weight.

PART 3	EXECUTION

	A.	Remove vegetation, spread, shape and compact shoulder material from edge of road to edge of ditch embankment, unless otherwise specified.  Compaction to ninety-three percent (93%) A.S.T.M. D1557 or to a lesser degree as approved by the Owner.

	B.	Compacted shoulder material to match surface elevation at edge of new pavement and to be sloped toward ditch at a slope of 1/8" per foot.

	C.	The minimum width of the shoulder material shall be three (3) feet from the edge 		of the new asphalt unless conditions exist such that the minimum width can not be 		obtained.

	D.	Shoulder material shall be placed within thirty (30) days from the time that the 		wearing course of asphalt is laid.

PART 4	MEASUREMENT AND PAYMENT

	A.	Shoulder material shall be measured by the lump sum and payment shall be at the contract unit price for shoulder material complete in place.

	B.	Contractor to estimate the quantity of material needed when preparing lump sum estimate.

				

					02725

DITCH EXCAVATION AND INCIDENTAL DRAINAGE
			
1	GENERAL

1.1	Description

	A.	Work included:  cleaning and shaping roadside ditches, constructing new ditches, cleaning existing culverts and structures and installing new structures and culverts.

1.2	Quality Assurance

	A.	Use adequate number of skilled workmen who are thoroughly trained and experienced in the necessary crafts and who are completely familiar with the specified requirements and the methods needed for proper performance of the work of this section.

	B.	Use equipment adequate in type, size, capacity and numbers to accomplish the work in a timely manner.

2	MATERIALS

2.1	All materials shall conform to the requirements of 1992 L.D.O.T.D.  Standard Specifications for Roads and Bridges.

3	EXECUTION

3.1	Cleaning Existing Ditches

	A.	Clean and shape roadside ditches where shown on the plans removing all weeds and shaping so that water flows and does not stand.  Exercise care not to over excavate.

	B.	Remove debris and excavated material from job site.

	C.	Clean existing culverts and structures where noted on the plans.

	D.	All drainage work, including ditch construction and culvert installation, shall be done in a manner than allows the ditches to drain without retaining any water.

3.2	Constructing New Ditches

	A.	Excavate new ditches accurately to the lines, grades and sections shown on the plans.

	B.	When not noted otherwise remove excavated material from site, including any trash, vegetation, trees, and soil.

	C.	Backfill abandoned ditches with A4 or better material in twelve inch (12") layers compacting each layer to a minimum of ninety-six percent (96%) of A.S.T.M. D698.

3.3	New Drains, Culverts and Structures

	A.	Drains and culverts shall be installed where noted on the plans or as directed by the Owner.

	B.	Structures shall be constructed where noted on the plans.
	C.	All materials and construction, if not shown otherwise, shall conform to L.D.O.T.D. requirements.

	D.	Bids accepted after July 16, 1992 on roads under the Capital Improvement Program shall strictly adhere to Section 701.08 of the Louisiana Standard Specifications for Roads and Bridges, and shall incorporate Type 2 Joints as noted in Section 701.06 of the aforesaid specifications per Resolution 92-5782 as amended.

4	MEASUREMENT AND PAYMENT

4.1	Cleaning and Reshaping Ditches

	A.	Cleaning and reshaping ditches shall be measured horizontally by the linear foot and paid for at the contract unit price per linear foot.

4.2	New Ditches

	A.	New ditches shall be measured horizontally by the linear foot and shall be paid for at the contract unit price per linear foot for new ditch complete in place.

4.3	Drains, Culverts and Structures

	A.	Drain pipe shall be measured by the linear foot for the various types and sizes shown on the plans or directed installed by the Owner and paid for at the contract unit price per linear foot.  Payment per linear foot includes cost of all material, excavation, foundation material, embedment material, jointing and backfill.

	B.	Structures shall be measured per each and paid for at the contract unit price per structure complete in place.

									EXHIBIT  "A"

	TABLE I
REQUIREMENTS FOR ASPHALTIC CONCRETE MIXTURES

A.	MIXTURE REQUIREMENTS

"DPW TYPE I"
BINDER COURSE & WEARING COURSE

	U.S. SEIVE

	1 1/2"								-----
	1"								100
	3/4"								100
	1/2"								95 - 100
	3/8"								-----
	No. 4								60 - 75
	No. 10								32 - 55
	No. 40								16 - 35
	No. 80								08 - 20
	No. 200							3 - 9
	Extracted Asphalt %
	Mix Temperature
	% Crushed Ret on No. 4 (8)					85 Min.
	Course Aggregate (1)						A, B, C

	Marshall Stab (lbs)
		No. of Blows						75
		Average of 4 Tests
			Design (2)					1400
			Minimum					1200
			Individual Test (Min.)			1000
	Mar. Flow (1/100")						6 - 15
	% Voids							3 - 5
	% VFA							70 - 80