544 SECTION 638 PROJECT MARKERS, RIGHT -OF-WAY MARKERS, SURVEY MARKERS , AND OUTLET MARKERS
638.1 -DESCRIPTION : This work shall consist of furnishing, and placing or installing at the points designated on the Plans, in the Contractor’s Proposal or by the Engineer, metal (signpost) project markers, right - of-way markers, concrete survey markers, and outlet markers in accordance with these Specifications and in reasonably close conformity to the lines, grades, dimensions, locations, and sections shown on the Plans, in the Contractor’s Proposal or established by the Engineer.
638.2 -MATERIALS : Right -of-way Markers shall consist of # 6 (# 20) deformed reinforcing steel bars meeting the requirements of AASHTO M 31 and caps provided by the Division. Materials for project markers shall conform to the requirements specified on the Plans. Survey mar kers shall be constructed of concrete conforming to subsections 715.12 or 715.19. Survey Markers constructed without reinforcement shall contain sufficient steel near the top to provide magnetic detection. The materials for Outlet Marker Signs, such as f or the sign panels, their supports, and for the legend and background, are to be of a type and method of fabrication that will be consistent with the conditions and estimated period of use. Signs shall have black letters for the legend on a white backgrou nd. Reflective sheeting will be permitted, but not required.
CONSTRUCTION METHODS
638.3 -RIGHT -OF-WAY MARKERS : 638.3.1 -Right -Of-Way Marker Inst allation: Markers shall be set plumb and to a minimum depth of thirty -six ( 36) inches and shall be flush to the ground. When rock is encountered in areas of proposed markers, they shall be grouted to a depth of eighteen ( 18) inches into the rock. Right -of-way markers shall be installed at points designating the right - of-way boundaries and at each break in the right -of-way line as shown on the Plans or as directed by the Engineer.
638.3.2 -Installation: Markers shall be set plumb and to the depth shown on the Plans. The holes shall be backfilled with suitable material and thoroughly tamped. Right -of-way markers shall be set at points designating the right -of-way boundaries and at each break in the right -of-way line as shown on the Plans or as directe d by the Engineer. Right - of-way markers shall be accurately set to the mark given by means of intersecting strings. If approved by the Engineer, other equally accurate methods may be substituted.
638.4 -CONCRETE SURVEY MARKERS : Survey markers shall be installed where indicated on the Plans or as designated by the Engineer. When locations for survey markers conflict with other construction, the survey markers shall be offset as directed by the Engineer. Precast concrete markers shall be set plumb and to the depth shown on Plans. Installation shall be backfilled with suitable material and thoroughly tamped to obtain a very rigid installation. If a manufactured point on the bronze casting does not coincide with the survey point after installation, it shall be filed and the actual survey point shall be center punched and outlined by a cross.
545 638.5 -METAL (SIGN -POST) PRO JECT MARKERS : Project markers shall be constructed in accordance with details and requirements on the Plans. Project markers shall b e placed at the beginning and end of projects, on the right side of the road or highway at the points designated by the Engineer. Project markers shall be located at the maximum practical distance not to exceed thirty ( 30) feet from the edge of the paveme nt without obscuring or detracting from the effectiveness of other official signs. Project markers shall be driven in place, plumb and to the depth shown on the Plans. Defective or damaged markers will be rejected.
638.6 -OUTLET MARKERS : 638.6.1 -General: Outlet Markers Signs shall be furnished by the Contractor and placed during the mobilization of the project. The Outlet Marker Sign shall be in accordance with Figure 638.6.1 below. The Outlet Marker Signs shall become the property of the Division and remain in place upon completion of the project unless otherwise directed by the Engineer. No shop drawings shall be required.
Figure 638.6.1: Outlet Marker
638.6.2 -Location And Content: The Outlet Marker Signs for projects shall be placed at each discharge point as indicated in the Special Provision for NPDES permits contained within the Contractor’s Proposal and conform to the exa mple as shown on the attached drawing. The following information shall be placed on the Outlet Marker Signs:
638.6.3 -Installation: Mounting, transverse location, and similar features for Outlet Marke r Signs shall be consistent with practices used for the installation in 636.9 on wooden or steel U -channel supports to comply with small sign support safety practices. The sign shall be mounted as directed by the Engineer.
546 638.7 -METHOD OF MEASUREMENT : The quantity of work done will be the actual number of "Project Markers", "Right -of-Way Markers", "Survey Markers" or “Outlet Markers”, complete in place and accepted.
638.8 -BASIS OF PAYMENT : The quantities, determined as provided above, will be paid for at the contract unit prices bid for the items listed below, which prices and payments shall be full compensation for excavating, backfilling, disposing of surplus material, furnishing all the material and doing all the work prescribed in a workmanlike and acceptable manner, including a ll labor, tools, equipment, supplies, and incidentals necessary to complete the work.
638.9 -PAY ITEM : ITEM DESCRIPTION UNIT 638001 -* Project Marker Each 638002 -* Right -Of-Way Marker Each 638003 -* Survey Marker Each 638004 -* Outlet Marker Each
* Sequence number
547 SECTION 639 CONSTRUCTION SURVEYING
639.1 -DESCRIPTION : This work consists of construction surveying, calculations, and staking, in accordance with these specifications.
639.2 -MATERIALS : Provide the necessary materials to complete the specified surveying services.
CONSTRUCTION METHODS
639.3 -CONSTRUCTION LAYOUT STAKES : The Division shall provide, to the Contractor, reference points along the line of improvement for proper layout of work. The reference points will serve as the horizontal and vertical control for the project. The Contractor shall provide field forces and shall set all additional stakes needed, such as offset stakes, reference point stakes, slope stakes, pavement and curb line and grade stakes, stakes for bridges, sewers, roadway drainage, pipe underdrains, pave d gutter, fence, culverts or other structures, supplementary bench marks, and any other horizontal or vertical controls necessary to secure a correct layout of the work. The Contractor shall also do all layout work and shall set stakes necessary for carryi ng out utility changes when such utility changes are an obligation of the Contractor under the Contract. The location of the slope stakes for grading work shall be determined by a calculation method. Stakes for line and grade of pavement and curb shall b e set at station intervals of twenty -five ( 25) feet maximum distance on curves and at fifty ( 50) feet maximum distance on tangents. Elevation control points with guard stakes shall be set, at a convenient distance outside the construction limits, opposite every fifty ( 50) foot station and all stations where original cross -sections have been taken. The centerline station, the distance from centerline, and the elevation of the hub shall be recorded on each guard stake. For right -of-way staking, iron pins ( WVDOT CAP on #5 Bar, 36” in length) with guard stakes shall be set on both sides of roadway at all locations where right -of-way changes width; the station number and the distance from the centerline shall be marked on each guard stake. The Contractor shal l be responsible for having the layout staking work conform to the lines, grades, elevations, and dimensions called for on the Plans. The Contractor shall furnish a copy of their survey records for checking by the Engineer and for the Division's permanent file. These records shall be furnished as they are completed during the progress of the work. Any inspection or checking of the Contractor's layout by the Engineer and the acceptance of all or any part of it shall not relieve the Contractor of their res ponsibility to secure the proper dimensions, grades, and elevations of the several parts of the work. The Contractor shall exercise care in the preservation of stakes and bench marks and shall have then reset at their expense when any are damaged, lost, d isplaced or removed. The Contractor shall use competent personnel and suitable equipment for the layout work required and shall provide that it be done under the supervision of, or directed by, a Registered Professional Engineer or Professional Surveyor. The Contractor shall not engage the services of any person or persons in the employ of the Division for the performance of any of the work covered by this item.