MASSACHUSETTS BAY TRANSPORTATION AUTHORITY

WIDETT LAYOVER FACILITY

Contract No.: F60PS01

Amtrak Timber Tie Turnout

Material

Summary

Item Amber Standard Timber Tie 136RE Left-

Had #8 Turnouts

Name No.8 Wood Tie Turnout Specification with

RBM Frog, 136RE

Spec No. 02855AP

Quantity

1 - Amber Standard Timber Tie 136RE Left-

Had #8 Turnouts (Hand Throw)

2 - Amber Standard Timber Tie 136RE Left-

Had #8 Turnouts (Powered)

Unit EA

Delivery:

• 100 Foodmart Road, Boston, MA, 02118

• Project limits defined as MBTA owned property within Widett Circle

• Delivery: By September 2, 2027

• Materials will be at manufacturer’s risk until accepted by the Authority

• Materials rejected for non-compliance with these specifications will be returned and replaced at Manufacturer’s expense within one month.

Submittal:

• Prior to manufacture, the manufacturer shall submit complete shop drawings for each item.

F60PS01 AMTRAK TIMBER TIE TURNOUT MBTA N.A.

2026 02855AP - 1

SECTION 02855AP

AMTRAK TIMBER TIE TURNOUT

PART 1 - GENERAL

1.1 DESCRIPTION OF WORK

A. The work specified in this Section includes furnishing all labor, materials, and equipment for the design, manufacture, testing, fabricating, and delivery of wood ties, switch point rails, stock rails, frogs, guard rails, switch plates, frog plates, lead rails, closure rails, and all other materials to construct portions of track as shown in the Contract Documents.

B. Related Work:

1. Amtrak Specification No. 065-RBM-136 (No.8 Wood Tie Turnout Specification with RBM Frog, 136RE)

1.2 PROCUREMENT INFORMATION

A. Attention is directed to the procurement requirements of the CONTRACT

B. Definitions

1. Installation Contract: The MBTA will advertise and award the project which involves the construction of the new MBTA railyard.

2. General Contractor (GC) – General Contractor who is awarded the above-mentioned project.

3. MBTA – The Massachusetts Bay Transportation Authority, owner of the railyard being constructed.

4. Supplier (vendor) – The supplier of the track materials described in this specification and the provided design documents.

C. Responsibilities

1. MBTA

a. The MBTA will be responsible for pre-purchasing the track materials and all associated components.

b. Coordinating ship dates with the Supplier and storage of the track materials until the GC is given an executed contract.

2. General Contractor

a. The General Contractor is responsible for coordinating the transfer/delivery, unloading, and storage of the track materials at the Widett Circle. Amtrak shall be responsible for inspection and approval of all the materials that are delivered.

2026 02855AP - 2

3. Supplier

a. The supplier is responsible for providing track materials that can meet the specifications and design documents. The supplier is responsible for coordinating submittals to the

MBTA, coordinating the delivery of the track materials from the manufacturer, and providing support through the purchase process.

1.3 APPLICABLE STANDARDS

A. Pertinent provisions of the following listed standards and publications shall apply to the Work, except as they may be modified herein, and are hereby made part of these Specifications to the extent required.

1. Current American Railway Engineering and Maintenance of Way Association, Manual for Railway

Engineering, herein referred to as the AREMA MRE.

2. Current American Railway Engineering and Maintenance Association, Portfolio of Trackwork

Plans, herein referred to as the AREMA Portfolio.

3. Amtrak Standard Drawings.

4. Codes and regulations of the jurisdictional authorities.

1.4 QUALITY ASSURANCE

A. The Supplier shall perform all measures necessary to assure quality of the Work.

B. The Supplier shall be experienced in the construction of all types of trackwork included in this Contract.

Such experience shall have been gained on at least three previous contracts of similar volume of work with other North American transit properties or railroads.

C. The Supplier shall implement a comprehensive quality assurance program to assure that the Work is performed as specified in the Contract Documents.

D. The Supplier’s Quality Assurance program shall be supervised by designated persons qualified to supervise the installation, restoration and renewal of tracks.

1.5 SUBMITTALS

A. The Supplier shall submit the following for approval:

1. A detailed description of the methods and procedures to be used in the construction of special trackwork as specified herein, including:

a. Proposed construction and installation procedures for installation of special trackwork components as specified in the Contract Drawings, including tie installation.

2. Test results required for the work specified in this Section.

3. Submit shop drawings of the Amtrak turnouts for review.

2026 02855AP - 3

PART 2 - PRODUCTS

2.1 SUPPLIER FURNISHED MATERIALS

A. The following track materials shall be furnished along with additional items necessary to construct an acceptable completed special trackwork. Materials to be furnished shall include all materials required to complete the special trackwork indicated on the Contract Drawings and as specified in these

Specifications.

B. Amtrak Turnouts shall be of timber ties.

C. Track Joints in turnouts will have the last hole blank at end of each rail.

2.2 WARRANTY

A. The complete turnout shall be warranted for a period of one year after installation. The warranty shall repair or replace defective materials, workmanship that develop within this period.

PART 3 - EXECUTION

3.1 HANDLING, SHIPPING AND UNLOADING

A. The Supplier shall be responsible for the purchase, quality control, and testing of all materials at the point of manufacture, as well as coordinating and executing all freight, transport, and delivery of all materials to the designated on-site drop-off location. Additionally, the Supplier shall provide all relevant material certifications, bills of lading, and shipping manifests to the Contractor at least ten (10) business days prior to delivery, and must ensure that all transport vehicles are properly equipped to allow for safe unloading operations by the Contractor’s personnel.

B. Carefully handle all rail and special trackwork components to minimize the chance of damage. Rails shall not be dropped or struck sharply. Handle and ship all rail and special trackwork in accordance with the recommended current practices of the AREMA MRE, Chapter 4.

3.2 SWITCH TIES

A. All ties in designated special trackwork shall be installed.

B. Switch plates shall be fully fastened as indicated in the approved shop drawings, as specified herein.

PART 4 - MEASUREMENT AND PAYMENT

4.1 MEASUREMENT

A. Separate measurement will be made for the work of this Section. The cost for all work, complete in place;

furnishing and installing all materials, equipment and accessories required; providing all tools, labor, 2026 02855AP - 4 transportation, handling, and storage at manufacturer’s facility; and performing all work incidental to completion of work of this Section shall be included in the Contract Unit Price payment item below.

4.2 PAYMENT

A. All costs of this Section as it pertains to the Supplier scope shall be included in the total Contract Unit

Price for Item 0290.995P Amtrak Timber Tie Turnout (Hand Throw).

B. All costs of this Section as it pertains to the Supplier scope shall be included in the total Contract Unit

Price for Item 0290.996P Amtrak Timber Tie Turnout (Powered).

4.3 PAY ITEMS

ITEM NO. DESCRIPTION UNIT

0290.995P Amtrak Timber Tie Turnout (Hand Throw) EA

0290.996P Amtrak Timber Tie Turnout (Powered) EA

END OF SECTION

SPEC NO. 65 ©

NO.8 WOOD TIE TURNOUT SPECIFICATION

WITH RBM FROG

AMTRAK PLAN 73184

1. Overview

1.1. This specification is for the purchase of one or more No.8 wood tie turnouts or crossovers with RBM frogs.

1.2. Manufacturer shall supply all rail, fasteners and other track materials beginning with the stock and switch rails and extending past the frog to insure coverage to the last long switch tie. Exact lengths will be at the discretion of Amtrak.

1.3. When crossovers are specified, successful bidder will supply an overall tie layout plan showing all ties and track material including rail within the area shown.

1.4. Crossovers will consist of two turnouts and all necessary materials to connect the two, including insulated joints and flexible tie splices when required.

When crossovers with track centers of less than 16 feet are specified, it may be necessary, when required by track centers, to connect crossover ties end to end through the use of tie splice plates.

2. Specifications

2.1 Specifications covering material and assembly will meet:

• Amtrak Standards and Specifications

• AREMA, (American Railway Engineering Maintenance Association)

• ASTM, (American Society for Testing and Materials)

• AWS, (American Welding Society)

In the event that there is a conflict between specifications, the most restrictive will apply.

2.2. Turnouts shall be in accordance with the latest Amtrak Standard Track Plans numbers 73184 (Sheets 1 and 2), 73180 (Sheets 1 and 2), 73519, 73530, 73518, 72220 (Sheet 1), 74160 (Sheets 1 and 2), 71810 (13’-0”), 71820 (13’- 0”), 74170, 73620, 71950, 71161, Amtrak Standard C & S Plans SP818 Test 27, SP-195 (Sheets 1 and 2), Rail Specification No.1806 and Treated Timber Specification No.1907.

2.3 All Amtrak standard plans listed are to be adhered to except where superseded by modifications noted in this specification or on purchasing document.

3. Drawings

3.1. Complete shop drawings will be furnished to Amtrak Standards Department within 60 days after receipt of order. Complete erection drawings will be furnished at least 30 days prior to inspection.

3.2. Complete sets of drawings in Portable Document Format (PDF) format will be furnished electronically to Amtrak for review. Amtrak will return submitted drawings marked approved within 14 working days after receipt of them.

Drawings not approved will be revised and resubmitted. Amtrak does not assume responsibility for any manufacturing that commences prior to submission of approved drawings.

3.3. All drawings will be formatted 22" x 34". Index to all shop drawings will be provided. All drawing dimensions and text will be in the English system. A 3" x 5" blank area will be left above the title block for Amtrak’s approval stamp.

3.4. All drawings become the property of Amtrak for the purposes of future replacement. The source for ordering complete components, spare components and parts will be at the sole discretion of Amtrak.

4. Rail

4.1. Rail used in fabrication will be new 136RE head hardened. Rail must meet

Amtrak Specification No.1806 including the 350 - 388 BHN rail hardness.

4.2 Rail must be in compliance with AREMA Chapter 4, Table 4-2-2, “Tolerances for trackwork rail”.

4.3. Mill certification showing compliance with specification will be furnished at time of inspection. It is the responsibility of the manufacturer to inspect rail including verifying rail hardness prior to commencing machining.

4.4. Unless otherwise specified on purchase order or drawing, rail end drilling shall be 9 ½”-6”, 1-5/16" Dia. @ 3-3/32” elevation for field welding and 3 ½”- 6”-6”, 1-5/16" Dia. @ 3-3/32” elevation at insulated joint locations.

4.5. Any raised brand on web of rails within joint bar area is to be ground flush with web.

4.6. All rail of a like section will be from same manufacturer.

4.7. Raised rail brand is to be kept to the field side of all rails.

5. Rail Clips and Tie Plates

5.1. Unless otherwise agreed upon in writing, all fasteners in this section will be of U.S. manufacture and furnished with certificates of origination and conformance at time of inspection.

5.2. “E” clips and screw spikes are preferred method for all rail, switch and frog fastening. Use 16” Victor plates with elastic fastener at intermediate locations with four screw spikes (see Section 5.9).

5.3. Toe load on “E” clips used with weld on shoulders will meet manufacturer's specification, (2750 Ft. lbs. +10% -20%).

5.4. Trackwork manufacturer will be prepared to demonstrate compliance with

Section 5.3 at the direction of Amtrak or its agents.

5.5. Toe load tests: When practical by design, a minimum of 5% of the “E” clips, (equally distributed about switch and frog), will be tested to determine if the toe loads are within the manufacturer's specified requirements. If any 1 of the clips does not meet the specified toe load, both adjacent clips will be tested.

If either of those clips fail, all clips on turnout must be tested. Weld on shoulder out of tolerance can be removed and replaced.

5.6. Forged weld on shoulders will be allowed in the toe and heel of frog and switch heel areas. All weld on shoulders will incorporate the Amtrak anti-backout feature.

5.7. “E” clips must not interfere with joint bolts. Modified "E" clips will be furnished at all bonded insulated joint locations. The latest version of “C” clips will be furnished at all field weld joint locations.

5.8. In those areas where adjacent rail base locations will not allow the use of "standard" weld on shoulders, the "special" weld on shoulder, (part No. 7299- 7300), will be the approved alternate. Where required these shoulders may be further modified to allow both legs of “E” clip to bear upon base of rails.

5.9. Plates will be fastened to the ties using Lewis “SG2UR” 15/16” x 6 1/2” Rect-

UP single head screw spikes.

6. Threaded Fasteners

6.1. Unless otherwise agreed upon in writing, all threaded fasteners in this section will be of U.S. manufacture and have certificates of origination and compliance to specification furnished at time of inspection. No metric threads are permitted.

6.2. Oval neck track bolts (A183, GR-2), square track nuts (J995, GR-8) and spring washers conforming to AREMA Chapter 4 Section 3.6 will be used at all rail joint locations unless otherwise specified.

6.3. Frog body bolts will be sq. head (J-429, GR-8) used with (J995, GR-8) heavy hex lock nuts with elliptical spring steel insert and (F-436) hardened steel flat washers.

6.4. Grade 5 heat treated square head bolts with matching hex castle nuts or square nuts and cotter pins are used in conjunction with switch clips, switch stops, heel blocks and switch rod applications.

6.5. Other configurations of threaded fasteners may be used where appropriate at the discretion of Amtrak.

6.6. All bolts, where two metal surfaces are clamped together, will be tightened with the following torque:

7/8" 470 ft. lb. +5% -0% 1" 710 ft. lb. +5% -0% 1-1/8" 960 ft. lb. +5% -0% 1-1/4" 1,350 ft. lb. +5% -0% 1-3/8" 1,700 ft. lb. +5% -0%

6.7. Threads must be in as received condition, (not plated or coated). Nuts will be tightened with calibrated torque wrenches and torques recorded for inspection purposes.

6.8. Bolts, which have reduced thickness heads due to clearance, will use special forged heads made for the specific purposes.

6.9. Provide a minimum of 3% above required quantity of all fasteners, including clips, spikes, track and frog bolts, nuts and washers.

7. Joints

7.1. All joints to be field welded with the exception of any insulated joint locations.

7.2. Where insulated joints are specified Poly joints shall be supplied. On crossovers there will be 2 Poly-bar joints per turnout and 2 Poly-bar joints located between the frogs, exact layout will vary by track centers.

7.3. All field welds and Poly joint locations shall be of the suspended type.

7.4. Field weld kits will not be furnished by the manufacturer. Conventional six (6) hole joint bars with four (4) bolts per bar will be provide for all field weld locations by the manufacturer.

7.5. Field weld locations shall have no, (0"), opening between rail ends.

7.6. All joint bars and bolts shall be applied at time of inspection. Rail head mismatch may not exceed .040" on gage face or running surface of rail.

7.7. All joint bars are to be stamped 136RE.

8. Switch Points & Stock Rails

8.1. All switch points and stock rails shall be undercut per AREMA design 5100, (unless specified otherwise on purchase order).

8.2. The stick-out on the straight stock rail will always be longest.

8.3. Toe end of stock rails to be left undrilled.

8.4. Huck bolts are the approved method to fasten switch reinforcing bars to the switch points.

8.5 Switch points to be equipped with Ekoslide adjustable switch point rollers as shown on Amtrak Standard Plan 73180 Sheet 1.

9. Switch Plates

9.1. All adjustable braces at stock rails for switches are to be the modified

Bethlehem Steel Co. Mark II boltless adjustable brace, Progress Rail “Clamptite” brace with fasteners, or approved equal. Brace shall be housed for the Calrod switch heater installation on the outside of the stock rails.

9.2. Rail braces shall provide a cavity for a 1” diameter Calrod electric heater element on the outside of the stockrail.

9.3. “E” clips will secure outside of running rails, including stock rails to the plate throughout with the use of a weld on shoulder.

9.4. Switch heel plates shall be set perpendicular to the straight line of the turnout.

10. Castings

10.1. Turnout frogs are to be rail bound manganese insert. A copy of the analysis of the manganese steel (and test drilling, if required by the inspector) shall be furnished by the manufacturer to the Amtrak Inspector. The steel of manganese steel castings shall conform to the following requirements as to chemical composition:

Carbon, percent......................................1.00-1.30 Manganese, min., percent....................12.00 Silicon, max., percent.............................2.00 Phosphorus, max., percent...................0.10 Sulphur, max., percent...........................0.05

10.2. Castings for manganese insert frogs are to be high integrity per AREMA 1012-96 and explosion hardened per AREMA specifications for special trackwork, paragraph M2.7, except castings failing to meet hardness requirement will not be acceptable. Minimum hardness to be 352 BHN.

10.3. All frog heel inserts are to be bonded to frog.

11. Frog Plates

11.1. All frogs are to have machined frog plates.

11.2. Plates should be perpendicular to the straight side of turnout.

11.3. All frog plates will fasten to ties through the use of screw spikes.

11.4. Frog plates under the casting portion of the frog shall be secured to base of frog with adjustable wedge style frog clamps with “E” clips per latest Amtrak Plan 74170.

12. Guard Rails

12.1. U-69 adjustable design guardrails are the preferred design per Amtrak

Standard Plan 71820.

12.2 Where U-69 guardrails are specified, Hook Flange guardrails are the approved equal per Amtrak Standard Plan 71810.

12.3. Guard rail lengths shall be at minimum 13’-0”.

13. Switch Timbers

13.1 Provide treated switch timber in accordance with Amtrak Specification

No.1907.

13.2 Provide 2 x 13’ 0” switch timbers at head-block locations for manual switch stand unless otherwise specified on purchase order or drawing.

14. Inspection

14.1. Manufacturer, if not already having done so, must furnish a complete quality control plan, which must be approved by Amtrak Engineering prior to any award.

14.2 Manufacturer shall notify Amtrak, or its designated inspector agency, a minimum of five (5) business days prior to desired inspection. Layout must be 100% complete and fully ready for inspection upon the arrival of the Amtrak inspection group.

14.3. Turnouts and crossovers will be fully floor assembled at shop for inspection including all clips, bars and bolts. Vendor will demonstrate capability of direct interchangeability, upon request, of applicable components at time of inspection.

14.4. In addition to internal inspection procedures, manufacturer should be ready to follow Amtrak latest inspection checklist.

14.5. Fully assembled turnout will be subject to Insulation Resistance Test for switches per C & S Plan SP818, notes 1, 3 and 4, and Test 27, as applicable.

14.5.1. Inspection procedure of Test 27(modified for new turnouts) is:

All insulation must be visually inspected and if inspection indicates poor conditions of insulation, test shall be made in accordance with Standard Plan SP818. Insulated joints MUST also be inspected for spikes, rail anchors, tie plates, end post missing and any that would bridge the insulation of the joint.

In addition, switches MUST be inspected for rod clearances that would bridge the insulation and affect the integrity of the track circuit. Conditions accountable to the C&S Department that would affect the integrity of the track circuit, MUST be corrected.

15. Shipment & Storage

15.1. Upon completion of successful inspection, turnout is to be disassembled for shipment with the exception of the switch area which shall remain assembled and shipped intact as practical.

15.2. All efforts must be made to prevent damage to components by handling.

Proper lifting points shall be indicated on all material.

15.3. Rail must be handled with proper devices. The use of chains is prohibited.

15.4. The frog should be fully supported by a lifting cradle.

15.5. Ties to be marked with tie number stamped on metal tag fastened to top of tie on straight side of turnout.

15.6. Orders greater than two turnouts will be color coded by applying paint on the end of tie which indicates tie number, the heads of all rails, frogs and switch points. Marking must be able to remain legible for approximately 5 years of exposure to the elements.

15.7. Long flexible components are to be banded together, firmly supported for shipment with lift points and weight clearly identified for each package.

15.8. Each rail component (frog, switch point, stock rail, guard rail if shipped loose and connecting rails) shall have an attached metal identification tag in the rail web area. In addition to the conventional required information, Amtrak order number, location and switch number must also be included if specified on Amtrak purchase order. (Example: 50000XXXXX, Location, Sw. No. XX).

Marking must be able to remain legible for approximately 5 years of exposure to the elements.

15.9. Base of rail (field side) to be marked with ½ inch wide stripe in white paint to locate tie placement and tie number.

15.10. Color code each turnout (frogs, heel blocks and ties) on rail head and end of ties. All rails and trackwork parts are to be match marked with a number and a paint color at each joining location on the head of the rails.

Do not use brown or red colors.

15.11. Coloring and numbering used shall be shown on assembly drawings.

15.12. Loose material will be packed in wood crates with lid and sealed with shrink wrap.

15.13. Two detailed packing slips will be included with each container. Both slips will be inside the container and attached to the manifest.

15.14. Container will be identified by Amtrak order number, color code, location, switch number (if specified on Amtrak purchase order) and quantity.

(Example: 50000XXXXX, Interlocking location, Sw. No. XX, container 1 of 2).

The identification shall be as large as possible and the identification shall be on all 4 sides of the container. Each identification location shall be underlined boldly with the chosen color for job location.

16. Miscellaneous

16.1. If bidder takes exception to any section of these specifications, they must refer to the section and detail their exceptions.

16.2 Bidder must furnish information as requested in items 14.1 and 16.1 at time of bid. Failure to do so will render bid not in compliance with specifications.

16.3. In the event of discrepancy on the sketches, standard plans or specifications, it is the responsibility of the manufacturer to prove any contested information. This may include but is not limited to making a visit to verify field conditions.

16.3.1. The supplier/manufacturer or other designated representative must be Roadway Worker Protection (RWP) qualified prior to entering Amtrak Right of Way.

Paul P. Rice

Director, Track Standards and Specifications Dec 17, 2020

12/17/2020 Rev G 05/20/2020 Rev. F 06/30/2017 Rev. E 02/27/2017 Rev. D 05/27/2016 Rev. C 07/30/2015 Rev. B 06/29/2001 Original issue

GRAVITY) OF ALL SWITCH POINT AND STOCK RAIL SETS, FROGS, AND GUARD RAILS.

MANUFACTURER TO CLEARLY MARK IN BRIGHT INDELIBLE INK THE LIFTING POINT (CENTER OF20.

" DIA. HOLES, 3" ABOVE BASE FOR POLYBAR INSULATED JOINTS.16

" - 6" - 7",32

23" DIA. HOLES, 3" ABOVE BASE FOR BOLTED JOINTS, AND 216

" -7",32

23WHEN SPECIFIED ON PURCHASE ORDER, ALTERNATE RAIL JOINT DRILLING TO BE 819.

IN GROUPS OF FOUR.

SWITCH PANEL FURNISHED ASSEMBLED; REMAINDER OF TIES PRE-PLATED AND BUNDLED18.

TIES MAY BE SHIFTED LATERALLY UP TO 6" WHERE NECESSARY.17.

ALL INSULATED JOINTS TO BE SUSPENDED TYPE WITH STAGGER MIN. = 24", MAX. = 56".16.

PROVIDE INSULATED JOINTS AS SHOWN WHEN INDICATED ON PURCHASE ORDER.15.

ALL BOLTED JOINTS MUST CLEAR TIE PLATES BY 2" MINIMUM.14.

" FOR OVER 39'-0".8

5" FOR RAIL LENGTHS 39'-0" AND UNDER, ± 16

7SHALL BE ±

SWITCHES AND FROGS SHALL HAVE A.R.E.M.A. TOLERANCES, CLOSURE RAIL TOLERANCE13.

" x 45°.16

1ALL BOLT HOLES TO BE CHAMFERED 12.

FLOATING HEEL BLOCK AS PER PLAN 73260.001.11.

PROVIDE TWO 13'-0" LONG UIC-33 TYPE GUARD RAILS AS PER PLAN 71820.001.10.

RBM FROG AND FROG PLATES AS PER PLAN 74160.001-.002.9.

CLIPS AS PER PLAN 73158.001.

VERTICAL INSULATED SWITCH RODS AND ADJUSTABLE ROCKER8.

TURNOUT PLATES NO. 8-2 THROUGH 8-11 AS PER PLAN 72220.001.7.

SWITCH PLATES NO. 0, 1, 1R, 1P, TR, TR-1, AND TR-2 AS PER PLAN 73530.001.6.

GAGE PLATES TO BE SUPPLIED AS PER PLAN 73159.001.

GAGE PLATE NO. 1G AS PER PLAN 73519.001.5.

FOR SWITCH DETAILS, SEE PLAN 73180.001.4.

39'-0" STOCK RAILS TO BE UNDERCUT PER PLAN 73180.002.3.

ALL RAILS TO BE FURNISHED HEAD HARDENED.2.

NO. 065-RBM-136 (NO.8 WOOD TIE TURNOUT SPECIFICATION WITH RBM FROG, 136RE).

TRACKWORK TO BE MANUFACTURED IN ACCORDANCE WITH AMTRAK SPECIFICATION1.

NOTES:

OFFSETS FOR NO. 8 R.H. TURNOUT

T R

0 1 R

T R

14,415#

T R

T R

T

R T

R

P

P1 P

P

11 1 R

P

P

P

P

R

R

F

R

F

R

F

R

F

F

R -0

F

R

R

F

R

F

R

F

P O

IN

T

O F

S W

IT

C

H

.5

F L

O A

T

IN

G H

E E

L B

L O

C K

.3

E N

D O

F S

W

IT

C H

R A

IL

/2

P

O I N

T O

F F

R O

G

O .R

.4

E N

D O

F F

R O

G A

R M

FROG ANGLE = 7°-09'-10"

SWITCH ANGLE = 1°-48'-32"

GAGE LINES

T R

T

R

T R

T R

P.T.

3" SHIFT

16'-0" EA.

8 TIMBERS

15'-0" EA.

4 TIMBERS

14'-0" EA.

5 TIMBERS

13'-0" EA.

5 TIMBERS

12'-0" EA.

6 TIMBERS

INSULATED JOINTS

11'-0" EA.

7 TIMBERS

" RAIL4

334'-11

39' UNDERCUT

STOCK RAIL

STOCK RAIL

39' UNDERCUT

10'-0" EA.

11 TIMBERS

9'-0" EA.

8 TIMBERS

HEADBLOCK TIES SUPPLIED BY AMTRAK

20'-0" RAIL

TAN

P.C.

16'-6" SWITCH ALIGNMENT

F L

O A

T

IN

G

H E

E L

B L

O C

K S

G A

G E

P.S.

P.S.

E N

D L

O N

G T

IM

B

E R

S

C TIE4"

24'-10"LEAD = 68'-0"

27'-0" SWITCH RAILS

R A

D

IU

S

.7

"4 @ 20" C.C.8 @ 21" C.C.2

"5 @ 20" C.C.

A 0 1 5 10 15 20 25 30 35 40 45 50 55

7'-0" 11'-0"

SWITCH PANEL 42'-4"

CLOSURE, FROG & LEAD PANEL 72'-0"

37,691

D C

'1

D C

'2

R

L

R

L

R

L

R

L

R

L

R

L

R

L

R

L

R

R

L

R

R

L

L

R

L

L

R

L

L R

L R

R 11 G

BLANK END

BLANK ENDBLANK END

BLANK END

BLANK END

BLANK END 20'-0" RAIL

12'-0" RAIL

" RAIL8

718'-9

40'-0" RAIL

40'-0" RAIL

½

P .T

⅞

P .C

¼

8 @ 19½" C.C.

½

9 @ 19½" C.C.

½

½

6 @ 20½" C.C.

27'-3½" RAIL

" RAIL8

315'-4

95' - 9½"

½" POINT OF FROG

12'-1½" RAIL

5'-2�"

½

22¾"

8'-6¾"

½

½

½

½

½

P

P

SEE NOTE 9

GUARD RAIL,

L

73180.001

PLATES, SEE PLAN

EKOSLIDE ROLLER

6'-8" 6'-4"

7'-0" 6'-0"

LEGEND:

" OPENING)8

3INDICATES POLYBAR INSULATED JOINT (

INDICATES INSULATED GAGE PLATE

" OPENING)8

1INDICATES BOLTED JOINT BAR (

"32

6"

6"6""2

BOLTED JOINTS

3 HOLE DRILLING FOR

POLYBAR INSULATED JOINTS

3 HOLE DRILLING FOR

AREMA END DRILLING (136RE)

" DIA.16

HOLES

6""2

SAP #

RH

LH

TIE> "2

2'-10½"

SHEET 01 OF 01

AMTRAK

NO. 8 BOLTED TURNOUT ON WOOD TIES

16'-6" SWITCH POINT (UNDERCUT)RBM FROG,

TIMBER AND RAIL LAYOUT - 136RE16 09-14-23 KLH

17 09-05-24 DRS

18 06-13-25 GAH

UPDATED, CONVERTED TO NEW STANDARD DESIGN

REQUIREMENT, DRAWING FRAME AND TITLE BLOCK

REV. TO BOLTED IJs, REMOVED HEADBLOCK TIE

UPDATED BOM, J CLIPS, BRACES, SCREW SPIKES

MULTI-TIE PLATE, REV. NOTE 9 AND 10, UIC-33 GR

ADD FROG GAGE PLATE, TAPERED HEEL FROG,

02-19-99

73184.001.18

IVE

06-13-25June 13, 2025

Standard Plan No.

and Special Trackwork Amtrak Track StandardsSTANDARD TRACK PLAN

Checked By:

Designed By:

CHIEF ENGINEER OF TRACK

OFFICE OF THE

Philadelphia, PA

Approved:without the express written consent of the National Railroad Passenger Corporation, Office of Engineering, is prohibited.

maintenance of Amtrak track-related material and facilities. The reproduction, display, sale, or other disposition of this document

Office of Engineering, and is supplied on a confidential basis solely for use in connection with the design, construction, and

This material is owned by and is the sole and exclusive property of the National Railroad Passenger Corporation (Amtrak), ByDateRevisionsNo.

COMPOSITE ROD DESIGN IS CONSIDERED AN APPROVED EQUAL TO INSULATED DESIGN SHOWN.6.

ALL INSULATION PARTS TO BE LAMICOR GRADE GP9306 (RED) MANUFACTURED BY NVF COMPANY.5.

NO.3 ROD FOR WELDED TURNOUTS ONLY.4.

(EXAMPLE: NO.1, 16'-6", 115/119-136)

" HIGH, WITH ROD, SWITCH, AND RAIL DESIGNATION.2

1NOT LESS THAN

EACH SWITCH ROD SHALL BE MARKED WITH DEEPLY CUT CHARACTERS,3.

SIGNAL SECTION MANUAL, PART 58, PART 116, AND PART 178.

ALL INSULATED PARTS AND ASSEMBLIES SHALL CONFORM TO CURRENT A.A.R.2.

ALL SWITCH RODS SHALL CONFORM TO CURRENT A.R.E.M.A. SPECIFICATIONS.1.

NOTES:

½"

10" 9½"

1" 1"

¼"

2½" NUT AND ¼" COTTER PIN

¾" x 4¼" MACH. BOLT, SQ.

5'-10"

2'-10¾"

1'-2�" 2'-11⅞"

LOCK WASHER

BUSHING

ADJUSTABLE BASKET

(SEE NOTE NO. 3)

ROD, SWITCH AND RAIL DESIGNATIONS TO BE MARKED ON SIDE OF ROD.

1¼"

3¾"

SPLICE PLATE

INSULATION

1¼" DIA. OPERATING ROD

STD HEX NUT

(FREE)

1¼"

SPRING

DIA.

1�"

(A.S.T.M. A229 CL1)

�" WIRE

1�"1⅜"

1�" DIA.

DIA.

2¼"

⅜" 2⅜"

SLEEVE

1⅞"�"

⅝"

CASTELLATED NUT

1¼"

B BX

2½" 3"

8" 2½"

3" 2½"

8"

NUT AND ¼" COTTER PIN

¾" x 4¼" MACH. BOLT, SQ.

LOCK WASHER

SPLICE PLATE

½"

2'-1¾"

4'-4"

⅛" SERRATIONS

HOLES

1�" DIA.

BUSHING

9½"

10"

¼"

CHANNEL

INSULATION

1¼"

1�" DIA.

(SEE NOTE NO. 3)

ROD, SWITCH AND RAIL DESIGNATIONS TO BE MARKED ON SIDE OF ROD.

¼"

SWITCH ROD

INSULATION

BASKET

ADJUSTABLE

DRAIN HOLE DOWN

APPLY BASKET WITH

LOCK WASHER

SPLICE PLATE

INSULATION

BUSHING

1"

�" R⅛"

1�" 2�"

10"

1¼" 2½"

1�" DIA. HOLES

�" R½"

1�"

2�"

¾" 1" 1"

2½"

9½"

�" DIA. HOLES

2½" 1¼"

½"

5"

2½"1�" DIA.

¾" R

1¼"

⅛" SERRATION

4¾"

⅜"

1�"

½"

2�"

1�"

1�" R

3⅞" 3"

1¾"

6"

8½"

2½" 5�"

2⅞" ½"

2½" R

¾"

4:1

⅛" SERRATION

2�"

⅝"

⅝"

⅜" ⅜"

½"

⅜"

1½"

2¾"

2¾"

1½"

¼

½

½" ¼"

½" FLAT SURFACES

1�"�"

1"

1⅜" 2¾"

⅛"

1¼"

INSULATED SWITCH ROD NO. 1 WITH ADJUSTABLE BASKET

BASKET DETAILED ON PLAN AM-73603

ROCKER CLIP PARTS

END VIEW

INSULATION FOR CHANNEL

CHANNEL - STEEL

SPLICE PLATE - STEEL

FOR SPLICE PLATE

INSULATION PLATE

BUSHING

INSULATED SWITCH ROD NO. 2 & NO. 3

ADJUSTABLE ROCKER CLIP

ROD DIMENSIONS

ROD NO. X

3'-0�"

3'-2⅛"

B

"16

4�"

AND COTTER PINS

CASTELLATED NUTS, SPRING WASHERS

1" x 3½" H.T. MACH. BOLTS WITH

VERTICAL SWITCH ROD

1⅛"

ROCKER CLIP

COTTER PIN

CASTELLATED HEX NUT,

⅜" THICK HEAD, SPRING,

1"x5⅜" H.T. MACH. BOLT, MALLEABLE IRON SPRING SLEEVE

OPEN END, GROUND, COMPRESSION SPRING

REINFORCING BARS

SWITCH RAIL

STOCK RAIL

2⅞"

½" MIN.

⅛"2 ⅜

2½"

ASSEMBLED ROCKER CLIP

DETAIL "A"

ELEVATION - SWITCH ROD

8"

2½"

3"

⅛" SERRATIONS

1�" DIA.

1¼" 2½"

OFF TOP OF VERTICAL SWITCH RODS)

(SEE DETAIL "A" SHOWING ⅛" MACHINED

⅜

1¼"

(BOTH ENDS)

OF VERTICAL SWITCH ROD

⅛" MACHINED OFF TOP

2½"2½"

2½"2½"

1�" DIA. HOLES

10"

1¼" 2½"

1¼" 2½"2½"

1" 1" 2½"

9½"

2½"2½"

�" DIA. HOLES

2½"

1¾"

¼

2'-1¾"

2½"2½"

⅛" SERRATIONS

SLEEVE NUTSLEEVE NUT

STD HEX NUT

2½" 3"

8"

⅛" SERRATIONS

1�" DIA.

3" 2½"

8"

⅛" SERRATIONS

1'-2�"

2'-10¾"

(SEE NOTE NO. 4)

2½" 2½"

SHEET 01 OF 01

AMTRAK

VERTICAL SWITCH RODS

AND ADJUSTABLE ROCKER CLIPS

16'-6" SW. 115RE/119RE OR 136RE RAIL08 09-22-17 KJW

09 07-27-23 KJW

10 06-26-25 DRS

UPDATED ROD 3 DIMENSION B.

CONVERTED TO NEW STANDARD DESIGN,

DRAWING FRAME AND TITLE BLOCK UPDATED,

REVISED ROD NO.3 DIMENSIONS

REVISED NOTES, ADDED NOTE 6

06-21-99

73518.001.10

KWK

07-22-25July 22, 2025

Standard Plan No.

and Special Trackwork Amtrak Track StandardsSTANDARD TRACK PLAN

Checked By:

Designed By:

CHIEF ENGINEER OF TRACK

OFFICE OF THE

Philadelphia, PA

Approved:without the express written consent of the National Railroad Passenger Corporation, Office of Engineering, is prohibited.

maintenance of Amtrak track-related material and facilities. The reproduction, display, sale, or other disposition of this document

Office of Engineering, and is supplied on a confidential basis solely for use in connection with the design, construction, and

This material is owned by and is the sole and exclusive property of the National Railroad Passenger Corporation (Amtrak), ByDateRevisionsNo.

TRACK FT_1

ELEMENT ID

L1

L2

C1

L3

ELEMENT

TANGENT

TANGENT

CURVE

TANGENT

STATION

41+69.16 41+99.16

41+99.16 46+43.12

P.C. = 46+43.12 P.T. = 49+26.32

49+26.32 56+19.28

BEARING

S31° 58' 08.19"W

S24° 48' 58.19"W

S09° 07' 14.70"E

NORTHING

2948685.672 2948660.222

2948660.222 2948257.255

P.C. = 2948257.255 P.T. = 2947980.286

2947980.286 2947296.092

EASTING

774626.149 774610.265

774610.265 774423.930

P.C. = 774423.930 P.T. = 774385.755

774385.755 774495.600

DATA

Lt = 30.00'

Lt = 443.96'

CURVE SET:

ANGLE(I) = 033°56' Dc = 011°59'

LENGTH = 283.72 R = 479.00'

PI: N = 2948124.595 E = 774362.587 Lc(CHORD) = 279.59'

PI STATION = 47+89.28 CC: N = 2948056.215 E = 774858.699

Lt = 692.96'

TRACK FT_3

ELEMENT ID

L7

L8

C3

L9

ELEMENT

TANGENT

TANGENT

CURVE

TANGENT

STATION

44+65.55 44+95.55

44+95.55 46+69.56

P.C. = 46+69.56 P.T. = 48+93.07

48+93.07 56+19.28

BEARING

S24° 48' 58.19"W

S17° 39' 48.19"W

S09° 07' 14.70"E

NORTHING

2948434.400 2948407.170

2948407.170 2948241.365

P.C. = 2948241.365 P.T. = 2948020.095

2948020.095 2947303.067

EASTING

774505.843 774493.252

774493.252 774440.454

P.C. = 774440.454 P.T. = 774423.928

774423.928 774539.043

DATA

Lt = 30.00'

Lt = 174.01'

CURVE SET:

ANGLE(I) = 026°47' Dc = 011°59'

LENGTH = 223.92 R = 479.00'

PI: N = 2948132.697 E = 774405.850 Lc(CHORD) = 221.89'

PI STATION = 47+83.60 CC: N = 2948096.024 E = 774896.871

Lt = 726.21'

TRACK FT_4

ELEMENT ID

L10

L11

C4

L12

ELEMENT

TANGENT

TANGENT

CURVE

TANGENT

STATION

45+79.73 46+09.73

46+09.73 47+05.96

P.C. = 47+05.96 P.T. = 48+69.78

48+69.78 56+19.28

BEARING

S17° 39' 48.19"W

S10° 30' 38.19"W

S09° 07' 14.70"E

NORTHING

2948332.918 2948304.332

2948304.332 2948209.722

P.C. = 2948209.722 P.T. = 2948046.415

2948046.415 2947306.396

EASTING

774469.608 774460.505

774460.505 774442.952

P.C. = 774442.952 P.T. = 774440.971

774440.971 774559.778

DATA

Lt = 30.00'

Lt = 96.22'

CURVE SET:

ANGLE(I) = 019°38' Dc = 011°59'

LENGTH = 164.12 R = 479.00'

PI: N = 2948128.240 E = 774427.834 Lc(CHORD) = 163.32'

PI STATION = 47+88.83 CC: N = 2948122.344 E = 774913.915

Lt = 749.50'

TRACK FT_5

ELEMENT ID

L13

L14

C5

L15

ELEMENT

TANGENT

TANGENT

CURVE

TANGENT

STATION

40+84.21 41+14.21

41+14.21 44+89.92

P.C. = 44+89.92 P.T. = 48+71.58

48+71.58 56+19.28

BEARING

S31° 58' 08.19"W

S24° 48' 58.19"W

S09° 07' 14.70"E

NORTHING

2948787.868 2948762.418

2948762.418 2948421.398

P.C. = 2948421.398 P.T. = 2948048.444

2948048.444 2947310.200

EASTING

774689.931 774674.047

774674.047 774516.357

P.C. = 774516.357 P.T. = 774464.953

774464.953 774583.474

DATA

Lt = 30.00'

Lt = 375.71'

CURVE SET:

ANGLE(I) = 033°56' Dc = 008°54'

LENGTH = 382.04 R = 645.00'

PI: N = 2948242.764 E = 774433.756 Lc(CHORD) = 376.48'

PI STATION = 46+86.73 CC: N = 2948150.687 E = 775101.798

Lt = 747.70'

TRACK FT_6

ELEMENT ID

L16

L17

C6

L18

ELEMENT

TANGENT

TANGENT

CURVE

TANGENT

STATION

43+86.28 44+16.28

44+16.28 46+02.57

P.C. = 46+02.57 P.T. = 48+26.08

48+26.08 56+19.28

BEARING

S24° 48' 58.19"W

S17° 39' 48.19"W

S09° 07' 14.70"E

NORTHING

2948522.546 2948495.316

2948495.316 2948317.810

P.C. = 2948317.810 P.T. = 2948096.541

2948096.541 2947313.371

EASTING

774563.129 774550.538

774550.538 774494.013

P.C. = 774494.013 P.T. = 774477.487

774477.487 774603.221

DATA

Lt = 30.00'

Lt = 186.29'

CURVE SET:

ANGLE(I) = 026°47' Dc = 011°59'

LENGTH = 223.92 R = 479.00'

PI: N = 2948209.142 E = 774459.409 Lc(CHORD) = 221.89'

PI STATION = 47+16.61 CC: N = 2948172.470 E = 774950.431

Lt = 793.20'

TRACK FT_AMTRAK MOW

ELEMENT ID

L19

L20

C7

L21

ELEMENT

TANGENT

TANGENT

CURVE

TANGENT

STATION

0+00.00 0+30.00

0+30.00 1+73.29

P.C. = 1+73.29 P.T. = 2+32.30

2+32.30 3+31.53

BEARING

S54° 58' 56.91"W

S47° 49' 46.91"W

S54° 54' 04.97"W

NORTHING

2948400.867 2948383.652

2948383.652 2948287.456

P.C. = 2948287.456 P.T. = 2948250.568

2948250.568 2948193.513

EASTING

774388.927 774364.358

774364.358 774258.158

P.C. = 774258.158 P.T. = 774212.005

774212.005 774130.820

DATA

Lt = 30.00'

Lt = 143.29'

CURVE SET:

ANGLE(I) = 007°04' Dc = 011°59'

LENGTH = 59.12 R = 479.00'

PI: N = 2948267.586 E = 774236.221 Lc(CHORD) = 59.08'

PI STATION = 2+02.89 CC: N = 2948642.468 E = 773936.587

Lt = 99.23'

TRACK FT_MBTA MOW

ELEMENT ID

L22

L23

ELEMENT

TANGENT

TANGENT

STATION

0+00.00 0+30.00

0+30.00 2+88.92

BEARING

S24° 48' 58.19"W

S17° 39' 48.19"W

NORTHING

2948701.431 2948674.201

2948674.201 2948427.488

EASTING

774645.846 774633.255

774633.255 774554.693

DATA

Lt = 30.00'

Lt = 258.92'

TRACK FT_2

ELEMENT ID

L4

L5

C2

L6

ELEMENT

TANGENT

TANGENT

CURVE

TANGENT

STATION

45+55.21 45+85.21

45+85.21 46+89.72

P.C. = 46+89.72 P.T. = 49+13.23

49+13.23 56+19.28

BEARING

S24° 48' 58.19"W

S17° 39' 48.19"W

S09° 07' 14.70"E

NORTHING

2948344.466 2948317.236

2948317.236 2948217.649

P.C. = 2948217.649 P.T. = 2947996.379

2947996.379 2947299.263

EASTING

774464.257 774451.666

774451.666 774419.954

P.C. = 774419.954 P.T. = 774403.428

774403.428 774515.347

DATA

Lt = 30.00'

Lt = 104.52'

CURVE SET:

ANGLE(I) = 026°47' Dc = 011°59'

LENGTH = 223.92 R = 479.00'

PI: N = 2948108.981 E = 774385.350 Lc(CHORD) = 221.89'

PI STATION = 48+03.77 CC: N = 2948072.308 E = 774876.372

Lt = 706.04'

MASSACHUSETTS BAY TRANSPORTATION AUTHORITY

PL

O

TT

ED

D

R

AW

IN

G

MBTA CONTRACT NO. F60PS01

BOSTON, MASSACHUSETTS

.0 3.

0:

:0

PM

WIDETT LAYOVER FACILITY

DP1 - DEMOLITION & SIX LAYOVER TRACKS

c:

\U se rs

\p al m er tg \D

C \A

C C

D oc s\ st v in co rp or at ed \4

-w id et t l ay ov er fa ci lit y\ pr oj ec t f ile s\

_b im _c ad \D

P1 \0

4_ C

K_ Tr ac k\

D P1

_C K-

3(

Ta bl es ).d w g

ONE FINANCIAL CENTER,

3RD FLOOR,

BOSTON, MA 02111

(617) 482-7298 www.stvinc.com

ISSUE

BY

CHECK

BY

DESIGN

BY PLAN NO:SCALE:

DRAWN

SHEET:DATE:

MASSACHUSETTS BAY

TRANSPORTATION AUTHORITY

Director of Design and ConstructionDateProject Manager Date

APPROVED BY:

REV.

NO

DATE DESCRIPTION BY

APPROVED BY:

90% DESIGN

SUBMISSION

NOT AUTHORIZED

FOR CONSTRUCTION

CK-006

TRACK

GEOMETRY DATA TABLES

AS NOTED

PB 3/27/2026 PB JS

T

M

T

T

E

E

E

E E E

E

S

S

S

S SS

S

S

D

D

D

D

D

D

D

D

D

D

D

S

D

D

D

D

D

D

D

D

D

D

D

D

D

D DD

D

495051525354

PC +43.12

PT +26.32

49505152

545556

PI +85.21

PC +89.72

PT +13.23

4950515253545556

PI +95.55

PC +69.56

PT +93.07

4950515253545556

484950515253545556

PC +89.92

PT +71.58

484950515253545556

PI +30.00

PC +73.29

PT +32.30

TRACK FT-1

TRACK FT-2

TRACK FT-3

TRACK FT-4

TRACK FT-5

TRACK FT-6

AM

TRAK-M

O W

TRACK

AM

TRAK DRY LO

O

P TRACK

AM

TRAK W

ET LO

O

P TRACK

PS

T

O-M B-

#8

L H

ST

A.

5+

.0

(F

T- 1)

ST

A.

5+

.2

(F

T- 2)

PS

T

O- M

B-

#8 L

H

ST

A.

5+

.4

(F

T- 3)

ST

A.

5+

.7

(F

T- 4)

PS TO-MB-3 #8 LHSTA. 44+47.95 (FT-1) =STA. 44+65.54 (FT-3)

WIDETT

CIRCLE

WIDETT CIRCLE

WIDETT

CIRCLE

FOODMART

ROAD

FOODMART

ROAD

FOODMART

ROAD

FOODMART

ROAD

FOODMART ROAD

1-63

FOODMART ROAD

W

IDETT CIRCLE

W

ID

ET

T

CI

RC

LE

AMTRAK

TRAIN

WASH

PC +02.57

PT +26.08

PI +09.73

PC +05.96

PT +69.78

SOUTH BOSTON BYPASS

(OVERHEAD)

EXISTING MBTA WARMING

TRACK TO REMAIN

EXISTING MBTA WARMING

CURVE C-1

CURVE C-7

CURVE C-6

CURVE C-5

CURVE C-4

CURVE C-3

CURVE C-2

TRACK FT-6

TRACK FT-3

PS TO-MB-2 #8 LHSTA. 43+78.48 (FT-5) =STA. 43+86.28 (FT-6)

END MOW TRACK

BUMPING POST

STA. 3+31.53

END AMTRAK DRY LOOP

TRACK REHAB. STA. 15+04.59

PROPOSED BUMPING POST (TYP.)

PROPOSED BUMPING POST

BE

G

IN

A

G

AR

T R

AC

K

R

EM

O

VA

L

ST

A.

1+

EN

D

A G

AR

T R

AC

K

AN

D

A G

AR

T

R

AC

K R

EM

O

VA

L

ST

A.

0+

EXISTING MBTA WARMING

TRACK SHED TO REMAIN

EXISTING AGAR TRACK TO REMOVED

EX.AGAR TRACK

EX.AGAR 1 TRACK

EXISTING AGAR 1 TRACK TO BE REMOVED

21'-6" TRACK CENTERS

PROPOSED OCS STRUCTURE L25A

STA. 13+16 (DRY LOOP TRACK)

EXISTING OCS STRUCTURE TO BE REMOVED

BEGIN AGAR

REMOVAL ST

CK-101

TRACK

PLAN

AS NOTED

PB 3/27/2026 PB JS

MASSACHUSETTS BAY TRANSPORTATION AUTHORITY

PL

O

TT

ED

D

R

AW

IN

G

MBTA CONTRACT NO. F60PS01

BOSTON, MASSACHUSETTS

.0 3.

:4 7:

P

M

WIDETT LAYOVER FACILITY

DP1 - DEMOLITION & SIX LAYOVER TRACKS

C :\U se rs

\p al m er tg \D

C \A

C C

D oc s\ st v in co rp or at ed \4

-w id et t l ay ov er fa ci lit y\ pr oj ec t f ile s\

_b im _c ad \D

P1 \0

4_ C

K_ Tr ac k\

D P1

_C K-

1.

dw g

ONE FINANCIAL CENTER,

3RD FLOOR,

BOSTON, MA 02111

(617) 482-7298 www.stvinc.com

ISSUE

BY

CHECK

BY

DESIGN

BY PLAN NO:SCALE:

DRAWN

SHEET:DATE:

MASSACHUSETTS BAY

TRANSPORTATION AUTHORITY

Director of Design and ConstructionDateProject Manager Date

APPROVED BY:

REV.

NO

DATE DESCRIPTION BY

APPROVED BY:

90% DESIGN

SUBMISSION

NOT AUTHORIZED

FOR CONSTRUCTION

40'

SCALE: 1"=40'

40' 020'

N

M

AT

CH

LI

NE

SE

E

SH

EE

T

CK

-1

KEY PLAN

CK-101

N

CK-102

S

D

D

D

D

D

D

D

D

D

D

CM

CM

PI +99.16

PC +43.12

PI +85.21

PC +89.72

PI +95.55

PC +69.56

PI +14.21

PC +89.92

PI +30.00

PI +30.00

0+00

2+88.92

PS

T

O -M

B-

#8 L

H

ST

A.

5+

.0

(F

T- 1)

ST

A.

5+

.2

(F

T-

2) PS TO-AM-3 #8 LH

STA.11+77.69 =

STA. 0+00

PS

T

O -M

B-

#8 L

H

ST

A.

5+

.4

(F

T- 3)

ST

A.

5+

.7

(F

T- 4)

PS TO-MB-3 #8 LH

STA. 44+47.95 (FT-1) =

STA. 44+65.54 (FT-3)

MBTA MOW TRACK

TRACK FT-5

TRACK FT-1

AMTRAK DRY LOOP TRACK

AMTRAK WET LOOP TRACK

PS

T

O-A M

-1

LH

ST

A.

+8

2.

(D

RY

L

OOP)

ST

A.

0+

.2

(F

T- 5)

PS

T

O-A M

-2

LH

ST

A.

+0

3.

(D

RY

L

OOP)

ST

A.

1+

.1

(F

T- 1)

PS

T

O -M

B-

#8 L

H

ST

A.

1+

.4

(F

T- 5)

ST

A.

+0

(M

O W

T

RK

BE

G

IN

A

M

TR

AK

W

ET

/D

R Y

LO

O

P

TR

AC

K R

EH

AB

. S

TA

. 0 +0

0.

EN

D

AM

TR

AK

W

ET

L

OOP

TR

AC

K

RE

HA

B.

S

TA

. 4 +5

0.

AMTRAK

TRAIN

WASH

WIDETT CIRCLE

WIDETT

CIRCLE

PI +16.28

PC +02.57

PI +09.73

EXISTING MBTA WARMING

TRACK TO REMAIN

AMTRAK LOOP TRACK TO BE REHABBED

EXISTING AMTRAK

MOW TRACKS TO

BE REMOVED

TRACK FT-6

TRACK FT-3

EN

D

AM

TR

AK

E

XI

ST

. M

OW

TR

AC

K

RE

HA

B.

S

TA

. 5 +9

1.

PS TO-MB-2 #8 LH

STA. 43+78.48 (FT-5) =

STA. 43+86.28 (FT-6)

PROPOSED BUMPING POST

BE

GIN

M

OW

T

RA

CK

RE

M

OVA

L

ST

A.

+8

EX.MOW TRK 1

EX.MOW TRK 2

BE

G

IN

M

O W

T

RA

CK

RE

M

O

VA

L

ST

A.

+6

END M

OW TRACK 1

REMOVAL S

TA. 1

0+

END M

OW TRACK 2

REMOVAL S

TA. 1

0+

BE

G

IN

A

G

AR

T R

AC

K

R

EM

O

VA

L

ST

A.

1+

END AMTRAK WORK

BEGIN MBTA WORK

STA. 41+77.04 (FT-5) =

STA. 7+74.54 (DRY LOOP)

EN

D

AM

TR

AK

W

ORK

BE

GIN

M

BT

A W

ORK

ST

A.

2+

.9

(F

T- 1)

ST

A.

+9

6.

(D

RY

L

OOP)

EXISTING TURNOUT TO REMAIN

EX

IS

TI

NG

P S

TO

R

EM

AI

N

ST

A.

+9

8.

EX

IS

TI

NG

P S

TO

R

EM

AI

N

ST

A.

+9

4.

EX

IS

TI

NG

P S

TO

R

EM

AI

N

ST

A.

+9

7.

BEGIN AGAR 1 TRACK

REMOVAL STA. 10+61

CK-102

TRACK

PLAN

AS NOTED

PB 3/27/2026 PB JS

MASSACHUSETTS BAY TRANSPORTATION AUTHORITY

PL

O

TT

ED

D

R

AW

IN

G

MBTA CONTRACT NO. F60PS01

BOSTON, MASSACHUSETTS

.0 3.

:2 0:

A

M

WIDETT LAYOVER FACILITY

DP1 - DEMOLITION & SIX LAYOVER TRACKS

c:

\U se rs

\p al m er tg \D

C \A

C C

D oc s\ st v in co rp or at ed \4

-w id et t l ay ov er fa ci lit y\ pr oj ec t f ile s\

_b im _c ad \D

P1 \0

4_ C

K_ Tr ac k\

D P1

_C K-

1.

dw g

ONE FINANCIAL CENTER,

3RD FLOOR,

BOSTON, MA 02111

(617) 482-7298 www.stvinc.com

ISSUE

BY

CHECK

BY

DESIGN

BY PLAN NO:SCALE:

DRAWN

SHEET:DATE:

MASSACHUSETTS BAY

TRANSPORTATION AUTHORITY

Director of Design and ConstructionDateProject Manager Date

APPROVED BY:

REV.

NO

DATE DESCRIPTION BY

APPROVED BY:

90% DESIGN

SUBMISSION

NOT AUTHORIZED

FOR CONSTRUCTION

40'

SCALE: 1"=40'

40' 020'

N

M

AT

CH

LI

NE

SE

E

SH

EE

T

CK

-1

KEY PLAN

CK-101

N

CK-102

MASSACHUSETTS BAY TRANSPORTATION AUTHORITY

PL

O

TT

ED

D

R

AW

IN

G

MBTA CONTRACT NO. F60PS01

BOSTON, MASSACHUSETTS

.0 3.

0:

:0

PM

WIDETT LAYOVER FACILITY

DP1 - DEMOLITION & SIX LAYOVER TRACKS

c:

\U se rs

\p al m er tg \D

C \A

C C

D oc s\ st v in co rp or at ed \4

-w id et t l ay ov er fa ci lit y\ pr oj ec t f ile s\

_b im _c ad \D

P1 \0

4_ C

K_ Tr ac k\

D P1

_C K-

1(

Tr ac k_ D et ai ls ).d w g

ONE FINANCIAL CENTER,

3RD FLOOR,

BOSTON, MA 02111

(617) 482-7298 www.stvinc.com

ISSUE

BY

CHECK

BY

DESIGN

BY PLAN NO:SCALE:

DRAWN

SHEET:DATE:

MASSACHUSETTS BAY

TRANSPORTATION AUTHORITY

Director of Design and ConstructionDateProject Manager Date

APPROVED BY:

REV.

NO

DATE DESCRIPTION BY

APPROVED BY:

90% DESIGN

SUBMISSION

NOT AUTHORIZED

FOR CONSTRUCTION

CK-501

DETAILS

MASSACHUSETTS BAY TRANSPORTATION AUTHORITY

PL

O

TT

ED

D

R

AW

IN

G

MBTA CONTRACT NO. F60PS01

BOSTON, MASSACHUSETTS

.0 3.

0:

:1

PM

WIDETT LAYOVER FACILITY

DP1 - DEMOLITION & SIX LAYOVER TRACKS

c:

\U se rs

\p al m er tg \D

C \A

C C

D oc s\ st v in co rp or at ed \4

-w id et t l ay ov er fa ci lit y\ pr oj ec t f ile s\

_b im _c ad \D

P1 \0

4_ C

K_ Tr ac k\

D P1

_C K-

1(

Tr ac k_ D et ai ls ).d w g

ONE FINANCIAL CENTER,

3RD FLOOR,

BOSTON, MA 02111

(617) 482-7298 www.stvinc.com

ISSUE

BY

CHECK

BY

DESIGN

BY PLAN NO:SCALE:

DRAWN

SHEET:DATE:

MASSACHUSETTS BAY

TRANSPORTATION AUTHORITY

Director of Design and ConstructionDateProject Manager Date

APPROVED BY:

REV.

NO

DATE DESCRIPTION BY

APPROVED BY:

90% DESIGN

SUBMISSION

NOT AUTHORIZED

FOR CONSTRUCTION

CK-502

DETAILS

NOTE, INSULATED JOINTS NOT NEEDED

INSULATED JOINTS NOT NEEDED