615MONUMENTS, MARKERS, AND PARKING BARRIERS

615.01Description

This work shall consist of furnishing and setting, setting only, or resetting right-of-way markers, monuments for marking section or other lines, benchmark posts and tablets, and parking barriers in accordance with 105.03.

MATERIALS

615.02Materials 10

Materials shall be in acco rdance with the following:

Coarse Aggregate, Class A or Higher, Size No. 8 or 91 .................................................... 904.03 Fine Aggregate, Size No. 23 ........................................ 904.02 Portland Ceme nt .......................................................... 901.01(b) Post .............................................................................. 911.02(f) Reinforcing Bars .......................................................... 910.01

615.03Reinforced Cement Co ncrete Right-of-Way Markers 20

These markers shall conform with the dimensions and lettering shown on the plans. The reinforcement shall be securely held in place by at least four spacers of an approved design. The concrete ingredients shall be graded and proportioned to produce a strong dense concrete.

When tested as hereinafter described, a specimen shall support a total load of at least 2,400 lb before the first crack appears. The specimen will be tested as a simple beam. The distance between supports shall be exactly 24 in. with the load applied at the rate of approximately 1,200 lb per minute in the center of the span. Loading will continue until the first crack appears. 30

The cement concrete shall absorb no m o r e t h a n 8 % w a t e r . S p e c i m e n s f o r absorption may be taken from the markers tested for strength. The absorption test shall 615.01

be as described in accordance with AASHTO T 280 except the specimen tested shall be the full cross-section marker.

The markers shall have a smooth workmanlike finish free from cracks, patches, honeycomb, exposed reinforcement, and excessive bubble holes. Each marker shall be plainly marked near the bottom with the trademark or initials of the manufacturer and the date of manufacture. These letters and figures shall be no less than 1 in. in height 40 and shall be indented 1/8 in.

A Type C certification in accordance with 916 shall be provided for the right-of- way markers.

615.04Monuments

Monuments shall be of the type specified in the Proposal, the details of which are shown on the plans. Any portion extending above the ground shall be finished in accordance with 702.21.

Where concrete is required, it shall be class A in accordance with 702. When placed in the forms it shall be tamped in layers until mortar covers the outer surface. The tops of the monument shall be floated smooth. Monuments may be precast or cast- in-place.

The pin shall be set perpendicular to and flush with the top of the monument while the concrete is plastic and left undisturbed until the concrete has set. The pin shall be steel and shall be 1 in. in diameter and 5 in. long. If for Type D monuments, the hole shall be drilled in the center with a 1/8 in. drill for a depth of 1 1/2 in. The hole shall be filled with lead flush with the end of the pin. Castings for protected monuments 60 shall be in accordance with 910.05(b).

615.05Benchmark Posts

Benchmark posts shall be of the dimensions shown on the plans and cast in accordance with applicable provisions of 615.03, except the strength shall be determined by concrete cores taken from the finished product. At least two concrete cores will be taken from each unit and the average strength of the unit shall be at least 4,000 psi with no individual core strength less than 3,600 psi. Tablets will be furnished by the Department and shall be set in the posts as indicated on the plans.

615.06Parking Barriers

Parking barriers shall be of the dimensions shown on the plans.

Placement of parking barriers shall be at the locations and in accordance with the details shown on the plans, or as otherwise directed.

Existing parking barriers to be rem oved and reset shall be removed without damage, stored and reinstalled as shown on the plans.

615.06

The concrete barriers shall be cast and tested in accordance with the applicable requirements of 615.03, except the strength shall be determined by concrete cores taken from the finished product. At least two concrete cores will be taken from each unit and the average strength of the unit shall be at least 4,000 psi with no individual core strength less than 3,600 psi.

Vertical timber posts as parking barriers shall be round, roofed on top, and be dimensioned as shown on the plans. The posts shall be in accordance with the applicable requirements of 911.02(f). 90

CONSTRUCTION REQUIREMENTS

615.07Setting Right-of-Way Markers

The back face of these markers sha ll be set on the right-of-way lines approximately 1,000 ft apart as hereinafter provided. They shall be set at all corners of irregular right-of-way lines, opposite each P.C. and P.T. of curves, and not to exceed 500 ft apart on the inside and outside of curves. Care shall be used in locating markers on tangents so that a marker is plainly visible from each of those adjacent.

Markers shall be set plumb, to the depth required on the plans, and with the letters facing the pavement. Portions of the holes not occupied by markers shall be backfilled and compacted in layers with suitable material up to the level of the original ground. The markers shall not be displaced during backfilling.

615.08Resetting Right-of-Way Markers

When the proposal provides that existing right-of-way markers be reset, the existing markers shall be removed and reset at designated locations in accordance with

615.09Setting Monuments

If the location of a monument falls within the limits of a cement concrete pavement, a steel pin, the details of which are shown on the plans, shall be set perpendicular to and flush with the top of the finished pavement. It shall be placed just before the concrete takes initial set and then left undisturbed until the concrete has set. Other monuments shall be of the type show n on the plans, depending on the type or surface of the pavement in which they are to be placed or if they are to be placed outside of pavement. Necessary excavation shall be to the required depth. The bottom of the excavation shall be firm and true to line and grades given. After a monument is in place, the remaining excavated areas shal l be backfilled with suitable material 120 firmly tamped in layers. The monument shall not be disturbed.

Existing monuments which are not required to be disturbed or re-established, but which are disturbed during construction operations, shall be re-established.

615.07

615.10Re-Established Monuments

It may be necessary to re-establish existing monuments in pavements or bases which are disturbed unavoidably or covered by operations embraced in the contract.

If the existing monument is, or contains a brass, copper, or steel pin, the pin shall 130 be extended to the surface of the new pavement by attaching a pin of the same metal with at least a 1 in. diameter and of the length required. Such extensions shall be attached by tapping the original pin and providing a necessary screw attachment such that the extension can be fastened securely to the original pin. The tapped hole shall be at least 1/4 in. in diameter and no less than 1 in. deep. The screw attachment shall have the same diameter as for the hole in the original pin and shall be no less than 1 in. in length.

Where an existing monument of the type specified above has not been re-established on a previous contract, the monument shall be re-established in the same 140 manner as set out above.

Where existing monuments are protected and encased in cast iron, such castings shall be adjusted to meet the elevation of the proposed surface by means of an asphalt coated, cast iron, adjustment casting. The size shall be the same as the original casting and of the depth necessary to meet the elevation of the proposed new surface.

615.11Setting Benchmark Posts and Tablets

Benchmark posts shall be set at locations marked on the plans or as directed. Excavation shall be to the depth indicated and to dimensions sufficient to provide for 150 the concrete backfilling. This concrete shall be class A and shall extend for 6 in. around and below the post. The bottom shall be monolithic with the sides. The remainder of the excavation up to the original ground line shall be backfilled with suitable material well tamped in layers. Care shall be taken not to disturb the post. When specified on the plans, or directed, benchmark tablets furnished by the Department shall be placed in newly constructed or existing drainage structures located within the limits of the contracts.

615.12Reset Benchmark Posts

When the Proposal provides that existing benchmark posts be reset, the existing 160 benchmark posts shall be removed and reset at designated locations in accordance with

615.13Method of Measurement

Right-of-way markers, reset right-of-way markers, monuments, re-established monuments, castings adjusted to grade monuments, benchmark posts, reset benchmark posts, parking barriers, and reset parking barriers will be measured by the number of units installed.

615.14Basis of Payment 170

The acceptable quantities of right-of-way markers, reset right-of-way markers, 615.14

monuments, re-established monuments, castings adjusted to grade monuments, benchmark posts, and reset benchmark posts, parking barriers, and reset parking barriers will be paid for at the contract unit price per each, complete in place.

Payment will be made under:

Pay Item Pay Unit Symbol

Benchmark Post ......................................................................... EACH 180 Benchmark Post, Reset .............................................................. EACH Casting Adjusted to Grade, Monument ..................................... EACH Monument, _____ ..................................................................... EACH type Monument, Re-Establish ........................................................... EACH Parking Barrier, Concrete .......................................................... EACH Parking Barrier, Reset ............................................................... EACH Parking Barrier, Timber Post ..................................................... EACH Right-of-Way Marker ................................................................ EACH Right-of-Way Marker, Reset ..................................................... EACH 190

The cost of extensions for monuments, adjustment castings, backfill, disposal of surplus materials, re-establishing dist urbed existing monuments, and all other necessary incidentals shall be included in the cost of the pay items in this section. The cost of setting tablets in benchmark posts or structures shall be included in the cost of Construction Engineering.

The cost of existing parking barrier re moval, storage, resetting, and all other necessary incidentals needed for resetting shall be included in the cost of parking barrier, reset. Existing barriers that are da maged by the Contractor shall be replaced 200 with no additional payment.