631TRAFFIC BARRIER TERMINALS

631.01 Description. This work shall consist of furnishing and erecting traffic

barrier terminals.

631.02 Materials. Materials shall be according to the following.

Item Article/Section

631.03 General. Traffic barrier terminals shall be furnished and erected as

shown on the plans and as specified herein and constructed according to Articles 630.03 through 630.06. Art. 631.04 Traffic Barrier Terminals

631.04 Traffic Barrier Terminal, Type 1 Special (Tangent) and Traffic

Barrier Terminal, Type 1 Special (Flared). These terminals shall be on the Department’s qualified product list. The terminal shall be installed according to the manufacturer’s specifications. The beginning length of need point of the terminal shall be placed within 12 ft 6 in (3.8 m) of the length of need point shown on the plans. The terminal shall be delineated with a terminal marker direct applied. No other guardrail delineation shall be attached to the terminal section.

631.05 Traffic Barrier Terminal, Type 1B. The excavated area around the

buried portion of the terminal shall be backfilled according to Article 502.10, except that granular material shall not be used.

631.06 Traffic Barrier Terminal, Type 5. The face of the guardrail shall be

installed flush with the face of the bridge rail or parapet.

631.07 Traffic Barrier Terminal, Type 6. When attaching the end shoe to

concrete, constructed with forms and with a thickness of 12 in. (300 mm) or less, the holes may be formed, core drilled, or an approved 3/4 in. (19 mm) cast-in-place insert may be used. When attaching the end shoe to concrete, constructed with forms and with a thickness greater than 12 in. (300 mm), an approved 3/4 in. (M20) bolt with an approved expansion device may be used in lieu of core drilled or formed holes. When attaching the end shoe to concrete constructed by slipforming, the holes shall be core drilled. When no bridge approach curb is present, Type B concrete curb shall be constructed according to Section 606 and as shown on the plans.

631.08 Traffic Barrier Terminal, Type 6B. Attachment of the end shoe to

concrete shall be according to Article 631.07, except the tapered, parapet, wood blockout will not be required.

631.09 Reserved.

631.10 Traffic Barrier Terminal, Type 10. If any portion of the existing name

plate of the bridge will be covered by the end shoe, the name plate shall be moved to an adjacent area along the rail or end post before the end shoe is installed. The standard end shoe shall be attached to the existing concrete with pre-drilled or self-drilling anchor bolts. The anchor cone shall be set flush with the surface of the concrete. Externally threaded studs protruding from the surface of the concrete will not be permitted. The standard end shoe shall be placed between the splice plate and the rail element. The distance between any anchor and the edge of existing concrete shall be 6 in. (150 mm). Guardrail and Cable Road Guard Removal Art. 632.01 When a bridge expansion joint exists between the end shoe and the first post, all splice bolts at the end shoe shall be fitted with a lock nut or double nuts and tightened only to a point that will allow guardrail movement.

631.11 Shoulder Widening. When widening of existing shoulders is required

for the construction of traffic barrier terminals, the earthwork shall be constructed as shown on the plans and according to Sections 202, 204, and 205.

631.12 Method of Measurement. The various types of traffic barrier terminals

will be measured for payment, complete in place, in units of each. The pay limit between the traffic barrier terminal and the adjacent guardrail shall be as shown on the plans, except for the following:

631.13 Basis of Payment. This work will be paid for at the contract unit price

per each for TRAFFIC BARRIER TERMINAL, of the type specified. The contract unit price per each for TRAFFIC BARRIER TERMINAL, TYPE 11, shall include any relocation of the traffic barrier terminal required in conjunction with the relocation of the temporary bridge rail. Excavation in rock will be paid for according to Article 502.13. Earthwork for shoulder widening will be paid for according to Article 202.08 and/or 204.08. Terminal markers-direct applied for traffic barrier terminal Type 1, Special will be paid for separately. Construction of Type B concrete curb for traffic barrier terminal, Type 6 will be paid for according to Article 606.15. SECTION 632. GUARDRAIL AND CABLE ROAD GUARD REMOVAL

632.01 Description. This work shall consist of the removal and disposal of

existing guardrail, including traffic barrier terminals, and cable road guard. CONSTRUCTION REQUIREMENTS Art. 632.02 Removing and Reerecting Guardrail and Terminals

632.02 General. The guardrail and cable road guard shall be removed so that

all material considered suitable by the Engineer for future use shall be salvaged. Posts having salvage value shall be removed without damage and those having no salvage value shall be pulled, or cut off at least 6 in. (150 mm) below the ground surface. All holes shall be filled and tamped. The salvaged material shall be stored at locations and in a manner approved by the Engineer. Any of this material having salvage value and which has been damaged by the Contractor shall be replaced at his/her own expense with new material of the same kind.

632.03 Method of Measurement. This work will be measured for payment in

feet (meters), measured from center to center of end posts.

632.04 Basis of Payment. This work will be paid for at the contract unit price

per foot (meter) for GUARDRAIL REMOVAL or CABLE ROAD GUARD REMOVAL. SECTION 633. REMOVING AND REERECTING GUARDRAIL AND TERMINALS

633.01 Description. This work shall consist of the complete removal and

reerection of existing steel plate beam guardrail and traffic barrier terminals, or the rail elements of existing steel plate beam guardrail and traffic barrier terminals.

633.02 Materials. New materials, when required, shall be according to

Articles 630.02 and 631.02. CONSTRUCTION REQUIREMENTS

633.03 General. The removal, temporary storage, and reerection of existing

guardrail and traffic barrier terminals shall be performed according to the applicable portions of Sections 630, 631 and 632. New bolts, nuts and washers shall be used throughout in the reerection work. All existing C posts shall be replaced with new posts. Rail elements and posts that are damaged during removal or that are otherwise unsatisfactory for reerection shall be replaced. Where existing steel blockouts are encountered, exclusive of Type C guardrail, they shall be replaced with either new wood or new plastic blockouts. The existing steel posts may be drilled to match the bolt pattern shown on the plans for the wood block-out or a new steel post shall be provided. Existing bolts shall be removed by removing or shearing the nuts. The use of a cutting torch to remove existing bolts will not be allowed. When removal and reerection includes the rail element only, the guardrail shall be temporarily stored against the posts or at the shoulder line. The existing posts shall not be exposed overnight without rail elements. The complete guardrail, guardrail elements, and traffic barrier terminals shall be reerected at the locations and according to the details shown on the plans.