equipment onto the project that is designated for use within a waterway. 111.5.2 Temporary Encroachments 1 Do not allow, to an extent greater than specified, temporary encroachments to reduce
waterways, increase depth of flow, cause bank erosion or bottom scour, or inhibit the movement of fish or other wildlife. Use cofferdams, silt barriers (staked or floating booms), bypass flumes, or sediment traps to minimize turbidity. Be ready to remove temporary encroachments if warranted by flood or threat of flood. 2 Use commercially available dikes, commercially available cofferdams, or clean gravel
(free of contaminants) for temporary encroachments. Obtain clean gravel fill material from a non-streambed, contractor-furnished source in accordance with Subsection 106.3.3, Contractor-Furnished. Do not use a source located within a surface water. Ensure a coarseness equal to or greater than the gradation of the natural streambed and that 90 percent of the material is greater than 0.05 in [0.6 mm]. Remove fine material that would unacceptably increase turbidity. 3 Release fish trapped by temporary fills, culverts, or other work into nearby unrestricted
or open surface waters.
Remove temporary encroachments as soon as practical; do so in a manner that minimizes disturbance. After removing the temporary encroachments, dispose of fill and other waste materials in accordance with Subsection 111.3.1, Erosion and Pollution Controls, General, and return the affected environment, such as stream banks, bottoms, and wetlands, to their configuration before disturbance. Remove temporary pilings or sheeting to a depth of at least 3 ft [1 m] below the streambed. 111.5.3 Emergency Fills
When it becomes necessary to temporarily place fill material in surface waters or wetlands to avoid flooding or retain spilled hazardous wastes, the department will obtain after the fact permits and certifications from the U.S. Army Corps of Engineers and WDEQ. 2 To
the extent possible, place emergency fill in accordance with Subsection 111.5.2, Temporary Encroachments; remove the material and restore the affected site in accordance with that same subsection. When approved by the engineer, the department will pay for this work in accordance with Subsection 109.4, Extra and Force Account Work.
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Archaeologic, Paleontologic, and Historic Sites
112.1Discovery of Potential Sites
1 Upon discovering evidence of a potential archaeologic, paleontologic, or historic site,
stop work in the area and notify the engineer. The engineer will contact the proper authorities, who will conduct a field inspection to evaluate the findings. Cooperate fully in facilitating this evaluation. The engineer will notify the contractor of the results and of when work in the area may resume. For delays due to the discovery, the engineer may make an extension to the contract completion date in accordance with Subsection 108.6, Extension to the Contract Completion Date.
112.2Cultural Clearances
1 The department will obtain and provide the cultural clearances and permits for the
specified right-of-way and for material, plant, and similar sites and facilities as described in Subsection 106.3.2, Department-Furnished. Before using sites other than those provided, obtain such clearances and permits, in accordance with Subsection 107.2, Permits, Licenses, and Taxes, and Subsection 106.3.3, Contractor-Furnished.
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Acceptance
113.1Acceptance of Aggregate
1 The department will accept the gradation of crushed or screened aggregates used for
pavements, bases, subbases, chip seals, and stockpiled materials with a gradation specification based on random samples taken at the direction of the engineer and a quality level analysis of the test results. Quality level analysis is a method of analyzing aggregate gradation test results to determine compliance with the contract requirements. The quality level analysis will include an evaluation for outlier test results using the department’s computer software. 2 The engineer will determine the quality level, acceptance, and pay factor for each lot.
Lot and sublot sizes are specified in the respective technical sections. The engineer will include partial lots with less than three samples with the previous lot for quality level analysis. All test results for a lot will be analyzed to determine the pay factor for the lot. The lowest pay factor computed for any one sieve will be used to adjust the pay for that lot. Acceptance procedures will not apply to sieve designations with requirements of 100 percent passing, 97 to 100 percent passing, and 95 to 100 percent passing. Only the PL (percent within lower limits) will be calculated for the sieve designations requiring 90 to 100 percent passing, and the PU (percent within upper limits) will be set at 100. 3 The maximum obtainable pay factor will be 1.05. 4 A lot containing material that does not meet the contract requirements will be:
5 To avoid a pay factor less than 1.00, the contractor may remove defective material and
replace it with new material, which the department will sample, test, and evaluate in accordance with this specification. 6 Without testing, the engineer may isolate and reject material that is obviously defective.
Do not continue producing material that does not meet contract requirements. If two consecutive lots have a pay factor less than 1.00, change procedures to meet the requirements.
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Acceptance