622MARKERS AND BOUNDS

New Hampshire Department of Transportation Standard Specifications – 2016 Description

1.1This work shall consist of furnishing and erecting witness markers and bounds in accordance with and at the locations shown

on the plans. Materials

2.1Witness markers shall be studded “ T” posts galvanized steel conforming to ASTM A 499. Galvanizing shall conform to

AASHTO M 111 (ASTM A 123). The post shall be 1 -3/8” wide, and 1-3/8” deep with a weight per foot of 1.33 lb. Post shall have a 5” high by 4” wide and 3/32” thick anchor plate riveted or swaged approximately 12” from the bottom. Posts shall be 7 ft. long. 2.1.1 All deliveries of witness markers shall be accompanied by a certificate of compliance, a certified mill test report, and a detailed bill of lading.

2.2Concrete bounds shall be as shown on the plans with Concrete Class A conforming to Section 520, and reinforcing steel

conforming to Section 544.

2.3Stone bounds shall be cut from hard and durable granite and shall be free from seams which would impair their structural

integrity; solid quartz or feldspar veins will not be cause for rejection. Dimensions shall be 4 to 8” square by not less than 4 ft. in length. The top of the bound shall be roughly perpendicular to the length of the stone and shall have a 1/2 ” drill hole at least 1/2” deep near or at the center.

2.4Backfill shall conform to 209.2.1.2.

Construction Requirements

3.1Witness markers shall be set plumb and firm to mark ditch line drainage structures, ends of cross culverts, ends of slope

drains and underdrains, or as ordered. Markers will not be used for pipes 36” and over. 3.1.1 Witness markers shall be installed 30” in the ground.

3.2Concrete Bounds.

3.2.1 Bounds shall be set as ordered on the Right-of-Way lines, at the beginning and end of the project, at the beginning and end of curves, at the beginning and end of spirals, at angle points, and on tangents. The maximum distance between bounds shall be 1,000 ft. 3.2.2 The exact location for each bound will be established from reference stakes set by the Engineer, and those reference stakes shall not be removed until the position of the bound has been checked by the Engineer. 3.2.3 The excavation shall be made to sufficient depth to allow the bound to protrude above the natural ground surface 4 ” if in land to be mowed, 6” if in land not under cultivation, or 12” if in woodland. Bounds in the roadway slope shall be set to protrude not more than 6” on the low side. Bounds set in lawn areas shall be set flush with the existing ground. Bounds set in pavement areas shall be recessed approximately 1/2” from the pavement surface. The bound shall be set with the letters “ NH” to read from the road, and the backfill shall be thoroughly tamped in place. 3.2.4 Unless otherwise ordered, when rock is encountered, the bounds may be cut off as required and shall be firmly bonded to the rock as directed. 3.2.5 When a tree or heavy root is encountered in setting a bound, a steel pin at least 12 ” long and 3/4” in diameter shall be driven when ordered. The bound shall then be set at the nearest practicable location as directed.

3.3Stone Bounds.

3.3.1 Stone bounds shall be set at points shown or ordered in accordance with 3.2 except that 3.2.1 and references to letters “ NH” in 3.2.3 will not apply.

3.4Resetting.

3.4.1 Bounds to be reset shall be removed and reset without causing damage to the bounds. Method of Measurement

4.1Witness markers, concrete bounds, and stone bounds of the type specified will be measured by the number of each installed

or reset.

New Hampshire Department of Transportation Standard Specifications – 2016 Basis of Payment

5.1The accepted quantities of witness markers, concrete bounds, stone bounds, and bounds reset will be paid for at the Contract

unit price per each for the kind specified complete in place. 5.1.1 All excavation required for this work is subsidiary except for ordered excavation of solid rock for bounds will be paid as provided in 109.04. 5.1.2 No extra allowance will be made for handling of bounds to be reset or for any excavation required to remove bounds from their original sites. 5.1.3 Pins used as specified in 3.2.5 will be subsidiary. Pay items and units:

622.1Steel Witness Markers Each

622.2Concrete Bounds Each

622.4Stone Bounds Each

622.51Setting Bounds Each

622.52Resetting Bounds Each

New Hampshire Department of Transportation Standard Specifications – 2016

Description

This work shall include the installation and operation of gates, bell systems, warning lights, and other protective devices, all

as required by the Railroad to protect the operation and assure the safety of its equipment.

1.2Refer to 104.07 and the Special Provision to Section 104.07 for additional railroad information and requirements.

Method of Measurement

Railroad Protection – Devices and Installation will be measured as a unit and shall include all labor and materials needed to

install and operate gates, bell systems, warning lights, and other protective devices. Basis of Payment

Railroad Protection – Devices and Installation will be paid for at the Contract lump sum price.

Pay item and unit: 624.2_ Railroad Protection – Devices and Installation Unit