- 111 - SECTION 201 -- GENERAL REQUIREMENTS
201.01 General
1.Work in the area of existing or relocated utilities shall be done in accordance with the requirements of Subsections 105.06 and 107.16.
2.Salvageable materials are any items that the Contractor removes and the Department designates in the contract to be salvaged. All nonsalvageable material shall become the property of the Contractor and must be promptly removed from the project.
3.The Contractor shall place right- of-way markers as one of the first orders of work.
4.The Contractor shall conduct t he operations and maintain the work so that adequate drainage is in place at all times. This shall include the subsurface drainage of embankments during construction.
5.The Contractor shall employ be st management practices to prevent petroleum products, chemicals, harmful materials, construction debris, and suspended solids in exce ss of permitted limits from entering waterways.
6.The Contractor shall be resp onsible for the stability of all constructed embankments and shall repl ace, at no additional cost to the Department, any portions which have become displaced or unstable due to construction.
7.Mandatory borrow material shall be obtained as indicated in the contract.
8.Borrow sites may be designated and described in the contract. The quality of material in such borrow sites will be acceptable in general, but the Contractor shall determine the amount of selective excavation, blending, screening, mixing, and other work required to provide a finished product meeting the contract requi rements. The Engineer ma y order procurement of material from any portion of the designated borrow sites and may reject unacceptable portions of the borrow sites.
9.When waste or borrow locations are not designated in the contract, the Contractor shall provi de waste or borrow sites.
10.The Department may acquire and make available to the Contractor the right to take soils from designated sources, together with the right to use the land for purposes such as plant si tes, stockpiles, and hauling roads. Terms of the land contracts are shown in the contract.
11.If the Engineer directs the Contra ctor to change from a designated borrow site to another not designated in the contract, the work of moving from one site to another, any additional stripping or hauling of the material, and any other additional costs occasioned by such change shall be considered "extra work".
12.Only materials authorized by the Engineer shall be permanently piled or buried within the right-of-way of any public road.
13.When pre-watering is required, proposed pre-watering methods will be explained by the Contractor at the preconstruction conference.
14.Surplus excavated material shall be disposed in waste areas provided by the Contractor and in co mpliance with any applicable state,
201.01 General Requirements
- 112 - federal, or local rules and regulations. Surplus excavated material may be disposed of in the toes of embank ments if approved by the Engineer.
15.At the preconstruction conference, the Contractor shall submit for acceptance specific plans for accomplis hing temporary erosion control, in accordance with Section 800.
16.The use of a borrow site shall be restricted to one contract or one pay item until the appropriate pa yment measurements are taken. The Department will do the initial and final cross section survey.
17.The Contractor shall furnish c opies of the water distributor and supply tank calibrations to the Engineer.
18.All equipment shall be adequate for its intended use and shall be maintained in satisfactory working condition.
19.The Contractor shall be responsible for all equipment calibrations. 20. The Contractor shall prot ect all structures and roadway appurtenances like signs, guardrails, an d curbs. If the Contractor damages items, the Contractor shall repair or replace the item s at no additional cost to the Department.
21.The finish grading operations shall be started in accordance with Section 800. - 113 - SECTION 202 -- CLEARING AND GRUBBING
202.01 Description
1.This work shall be describ ed as either "General Clearing and Grubbing" or "Large Tree Removal" in the contract and the bid proposal Schedule of Items.
2.Clearing and Grubbing:
a.Clearing and Grubbing is a lump sum bid item that includes:
1."Clearing" -- removing and properly disposing of all material from the surface, such as trees, vegetation, boulders, and trash unless designated by the Engineer.
2."Grubbing" -- removing and properly disposing of all material from underground, such as sod, boulders, stum ps, roots, buried logs, or other debris unless designated by the Engineer.
b.“General Clearing and Grubbi ng” requires the Contractor to remove all living or dead vegetation, including trees, and trash from within the limits of construction, including borrow pits and channel changes unless designated to remain.
c.If “Large Tree Removal” is not included in the Contract, then no payment will be made for the removal of large trees above and beyond the payment for “Clearing and Grubbing”.
3.Large Tree Removal:
a.If Large Tree Removal is included in the contract, then Large Tree Removal is an Each bid item that includes trees whose circumference exceeds 80 inches (2 m) at 40 inches (1 m) above ground level or stumps whose circumference exceeds 80 inches (2 meters) at (or near) ground level.
b.Large tree removal does not include “General Clearing and Grubbing.”
4.Live trees, hedges, shrubs, or grass designated to remain shall be protected as shown in the contract.
5.Live trees outside the limits of construction shall not be injured or damaged.
202.02 Construction Methods
1.The Contractor shall remove and properly dispose of all unwanted material from the clearing and grubbing operations unless designated by the Engineer.
2.Grubbing: a. All stumps, including large roots, shall be removed to a depth of at least 6 inches (150 mm) below th e preconstruction ground level or the finished grade elevation in cut sections.
b.When authorized by the Engineer, the Contractor may leave stumps, roots, and nonperishable solid objects in place provided that such objects will be a minimum of 36 inches (900 mm) below subgrade or embankment slopes. These st umps will be cut to within 1 foot (300 mm) of the original ground surface.
Source: Nebraska Standard Specifications for Highway Construction, 2017 Edition. Pages 145–146 of 1,048.