00811.41 853 Section 00811 - Cable Barrier
Description
00811.00Scope - This Work consists of furnishing and installing cable barrier to the lines, grades,
and at the locations shown or directed.
Materials
00811.10Cable Barrier - Furnish cable barrier from the QPL. Provide all cable barriers on the
Project from the same manufacturer regardless of the number of runs of cable barr ier required and regardless of the types of cable barrier required.
Use precast or cast -in-place concrete socketed foundation line posts. Furnish and place concrete meeting the requirements of Section 00440.
00811.11Cable Barrier Terminals - Use the following options as specified:
• Option 1 - Use cable barrier terminals from the QPL that matches the system used. • Option 2A - Tie the cable barrier to new guardrail as approved by the cable barrier manufacturer.
• Option 2B - Tie the cable barrier to existing guardrail as approved by the cable barrier manufacturer.
Equipment
00811.20Tension Measuring Device - Measure the cable barrier tension with a manufacturer
supplied measuring device.
Labor
00811.30Manufacturer's Representative - If it is a requirement of the manufacturer to have a
manufacturer's representative on-site during installation, provide the services of a manufacturer's representative at no additional cost to the Agency.
Constr uction
00811.40Cable Barrier - Install cable barrier according to the manufacturer's directions at the
locations shown. Cable anchors and cable overlap as shown are approximate. Locate and overlap the actual anchor according to manufacturer's instructions.
Keep a tension log and give it to the Engineer upon completion of installation. The tension log shall show the time, date, location, ambient temperature, and the final tension readings, and be signed by the person performing the tension readings. Provide a copy of the manufacturer's recommended tension chart along with the tension log.
Perform all tension checks or adjustments required by the manufacturer within a 30 Day period of installation.
00811.41Cable Barrier Terminals - Place terminals according to the manufacturer's directions, at
locations shown, and as required by the cable barrier manufacturer to meet their minimum requirements. Ensure that there is compatibility between terminals and the cable barrier system installed. 00811.42 854
00811.42Placement - Place the concrete anchors and footings, and backfill them at least 2 weeks
prior to tensioning the cables. Set the concrete anchors into the excavation as shown. Set the bottom of the anchor so it has full and even bearing in the s urface under it. Excavate and backfill according to 00810.41.
Maintenance
00811.60Training - After installation, provide at least one 4 hour manufacturer presented training
session to Agency maintenance personnel at no additional cost to the Agency.
Measurement
00811.80Measurement - The quantities of cable barrier will be measured on the length basis, from
center of end post to center of end post along the line and grade of each separate run. Measurement will be made through the ends of the term inals and guardrail connections.
The quantities of cable barrier terminals and cable barrier guardrail connections will be measured on the unit basis.
Payment
00811.90Payment - The accepted quantities of cable barrier will be paid for at the Contract unit
price, per unit of measurement, for the following items:
Pay Item Unit of Measurement
Items (c) and (d) include all special rail elements, brackets, posts , and all necessary appurtenances and hardware. Payment will be payment in full for furnishing and placing all Materials, and for furnishing all Equipment , labor, and Incidentals necessar y to complete the Work as specified.