663RAILROAD-HIGHWAY GRADE CROSSINGS

663

6-269SECTION 663 – RAILROAD -HIGHWAY GRADE CROSSINGS

663.01DESCRIPTION . This work includes rehabilitation of existing railroad -highway grade crossings

and construction of new full depth bituminous concrete or precast concrete railroad -highway grade crossings, including furnishing all required materials and necessary incidentals in accordance with the Contract and as directed by the Engineer.

663.02MATERIALS . Materials shall meet the requirements of the following subsections:

Aggregate for Railroad Ballast ................................ ................................ .................. 704.03 Cross Ties ................................ ................................ ................................ ................... 709.04( c) Corrugated Polyethylene Pipe (CPEP) ................................ ................................ ......710.03 Polyvinyl Chloride (PVC) Plastic Pipe ................................ ................................ ......710.05 New Rail ................................ ................................ ................................ .................... 715.06(a) Relay Rail ................................ ................................ ................................ ................... 715.06(b) Other Track Material (OTM) ................................ ................................ ..................... 715.0 8 Bituminous Concrete Mixtures ................................ ................................ .................. 716.02 Geotextile under Railroad Ballast ................................ ................................ .............. 720.03 Precast Concrete Grade Crossing Systems ................................ ................................ 781.01 Rubbe r Rail Seal ................................ ................................ ................................ ........ 781.02

663.03SUBMITTALS . The following information shall be prepared and submitted for review and

approval by the Engineer . Submittals shall meet the requirements of Subsection 105.0 6.

staging, any proposed temporary paving or temporary detours, and material storage sites. The work shall comply with the approved traffic control plan.

related sections and production quality control documentation.

operation.

construction affects existing CWR, the Contractor shall submit a plan (CWR Maintenance Plan) for maintenance of the Operating Railroad’s neutral temperature in accordance with their CWR program or submit a plan to adjust the CWR to the Operating Railroad’s neutral temperature.

663 6-270 (e) Layout Plan . A site -specific plan showing schematically the track layout, rail sections to be used, location of joints, location of welds, location of compromise joints or compromise w elds, and connections to existing rails.

manufacturer shall submit fabrication drawings within 15 working days after onsite field measurements are taken by the manufacturer. Fabrication drawings shall show details of crossing surface, and for other materials in related sections and production quality control documentation. The fabrication drawings shall include a full cross section v iew of the panels on cross ties, a plan view of panels in the track, and a detail of the flangeways. The fabrication drawings shall also indicate data on panel weights, loading specifications, lifting eye specifications, and any other applicable informatio n.

concrete railroad grade crossing panels crossing surface, and for other materials in related sections and production quality control documentation.

663.04CONSTRUCTION REQUIREMENTS

installation and highway grading, drainage, and paving work, so that paving between tracks and adjac ent to tracks can be accomplished in a single operation with highway paving.

663 6-271 (3) Where necessary to open crossings to highway traffic before final precast concrete panel installation and paving is completed, temporary panels or paving may be required. The Contractor shall ensure that temporary panels and pavement surfaces are properly maintained to avoid adverse highway traffic loads to the track structure. Any temporary paving shall be completely removed and the surfaces restored before final paving.

on the Plans. Underdrain flushing basins shall be installed at the upstream end of the underdrain and at intermediate points as required to provide cleanout access points no more than 200 feet apart.

following.

Welds that fall within the area of the rubber rail seal shall be ground down to the profile of the rail.

and surfaced to final horizontal and vertical location, and with ballast tamped and dressed, before the embedded rubber rail seal interface is installed. The embedded rubber rail seal shall be installed in accordance with the manufacturer ’s procedures and requirements.

allowed to traverse the crossing prior to establishing final line and surface, so as to attain the optimum ballast compaction in the crossing.

accordance with Section 406 , as directed by the Engineer. The Contractor shall coordinat e the installation of new pavement with the embedded rubber rail seal manufacturer’s installation requirements.

663 6-272 (f) Precast Concrete Grade Crossing Panels . Precast concrete grade crossing panels shall be installed in accordance with AREMA Chapter 5, Secti on 8.2 ; AREMA Chapter 5, Section 8.3 ; and the manufacturer’s recommendations.

and the adjacent crossing surface and shall be compatible with the railroa d grade crossing for which it is to be installed. The Contractor shall install rail seals level, in accordance with the manufacturer’s recommendations and as directed by the Engineer. The elastomeric interface shall provide a tight fit with the rail to m inimize moisture infiltration and facilitate easy installation on both tangent and curved track. The ends of each piece of elastomeric interface shall be precision cut to ensure straight square ends.

Plans.

663.05PRECAST CONCRETE PANEL GRADE CROSSING REPAIR

accordance with the manufacturer’s recommendations, including furnishing and installing all hardware required to reattach the existing panels at a railroad -highway crossing, at the location indicated in the Plans.

including the removal and resetting of the panel as necessary to complete the work per the manufacturer’s recommendations. The Contractor shall be responsible for any damage to the existing panel, the elastomeric interface , and any other railroad facilities, and shall repair all damage caused by their operations at their own cost.

the timber cross tie and bottom of the concrete panels.

The filler shall be flush and level with the top of panel. The gage flangeway filler shal l be 2 -3/4 inches to 3 inches maximum from the ball of rail to concrete panel in standard 56 -1/2-inch gage for tangent track.

663 6-273 663.06 METHOD OF MEASUREMENT . The quantity of Reconstruct Railroad -Highway Grade Crossing to be measured for payment will be on a lump sum basis for each crossing installed in the complete and accepted work. The quantity of Precast Concrete Panel Grade Crossing System to be measured for payment will be on a lump sum basis for each crossing installed in the complete and accepted work. The quantity of Precast Concrete Panel Grade Crossing Surface Repair at the location specified to be measured for payment will be for each precast panel repaired in the complete and accepted work. The quantity of Rubber Rail Seal to be measured for payment will be the number of linear feet of rail seal installed in the complete and accepted work. Field and gage side seals will be considered a single installation unit and will not be measured separat ely.

663.07BASIS OF PAYMENT . The accepted quantity of Reconstruct Railroad -Highway Grade Crossing

at the location specified will be paid for at the Contract lump sum price. Payment will be full compensation for removal and disposal of existing materials ; excavation; furnishing, transporting, handling, and installing the materials specified including rubber rail seal, spikes, tie plates, other track material, underdrain, geotextile; temporary paving on roadways; and for furnishing all labor, tools, equipm ent, and incidentals necessary to complete the work. Where required, underdrain carrier pipe and all appurtenances, such as joints, bends, and caps, underdrain flushing basins, material used for backfilling voids created by the removal of unsuitable material below subgrade, all associated excavation, backfill, geotextile fabric, and outletting of underdrain to the existing drainage swale will not be paid for directly but will be considered incidental to Reconstruct Railroad - Highway Crossing. Restoring roadw ay surfaces, emulsified asphalt used in the treatment of surfaces prior to placing permanent pavement, and furnishing and placing final roadway pavement will be paid for separately under the appropriate Contract items. The accepted quantity of Precast Conc rete Panel Grade Crossing System at the location specified will be paid for at the Contract lump sum price. Payment will be full compensation for furnishing, transporting, handling, and installing the materials specified, including precast concrete panels with elastomeric

flangeway filler, elastomeric bearing pads, and other track material; and for furnishing all labor, tools,

equipment, and incidentals to complete the work.

663

The accepted quantity of Precast Concrete Panel Grade Crossing Surface Repair at the locations specified

will be paid for at the Contract price for each panel. Payment will be full compensation for furnishing the

necessary hardware, removing, and installing the panel with the associated materials specified, including

the protection and reuse of the elastomeric flangeway filler, elastomeric bearing pads, and other track

material; and for furnishing all labor, tools, equipment, and incidentals to complete the work.

Where not incidental to Reconstruct Railroad-Highway Grade Crossing, the accepted quantity of Rubber

Rail Seal will be paid for at the Contract unit price per linear foot. Payment will be full compensation for

furnishing, transporting, handling, and placing the materials specified and for furnishing all labor, tools,

equipment, and incidentals necessary to complete the work.

Payment will be made under:

Pay Item Pay Unit

00 Reconstruct Railroad-Highway Grade Crossing .......................................Lump Sum

00 Precast Concrete Panel Grade Crossing System .......................................Lump Sum

50 Precast Concrete Panel Grade Crossing Surface Repair ...........................Each

70 Rubber Rail Seal .......................................................................................Linear Foot

664

6-275SECTION 664 – RAILROAD SIGNALS

664.01DESCRIPTION . This work includes designing, furnishing and installing new railroad -highway

active warning systems with new metered power services, traffic preemption interconnection where indicated on the Plans, and testing of equipment, material, hardware, and all nece ssary appurtenances specified or required to provide a safe and operating automatic highway crossing warning systems

664.02MATERIALS . Materials shall meet the requirements of the followi ng subsections:

Sand Borrow and Cushion ................................ ................................ ......................... 703.03 Dense Graded Crushed Stone for Subbase ................................ ................................ 704.06 Electrical Conduit ................................ ................................ ................................ ......752.0 6 Automatic Highway Crossing Warning System (AHCWS) ................................ ......781.03

664.03SUBMITTALS

and approval by the Engineer . Submittals shall meet the requirements of Subsection 105.0 6.

herein.

layout, including detailed bills of material. Fabrication drawings shall include detailed drawings of signal masts, cantilever gates, shelters and cases, and their respective foundations.

cantilever gates, and their respective foundations.

the new wiring.

including rack, lighting, convenience outlet arrangement, and exhaust fan mounting and location.