MASSACHUSETTS BAY TRANSPORTATION AUTHORITY

WIDETT LAYOVER FACILITY

Contract No.: F60PS01

136RE RAIL

Material

Summary

Item 136RE Rail

Name Railroad Running Rail

Spec No. 02851P

Quantity 15,000

Unit LF

Delivery:

• FOB to 100 Widett Circle, Boston, MA 02118

• Delivery is within the Project limits, which is defined as the 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 136RE RAIL MBTA N.A.

2026 02851P - 1

SECTION 02851P

136RE RAIL

PART 1 - GENERAL

1.1 DESCRIPTION

A. This Section specifies the furnishing, and delivery of 136RE rail within Project limits. The work consists of:

1. Furnishing the 136 rail.

2. Coordinating the shipment of 136RE head hardened rail from the rail manufacturer to the Project area.

3. Delivery coordination and proper distribution of rail within project limits.

B. Related work specified elsewhere:

1. Section 02851 – RAILROAD RUNNING RAIL.

C. Project Conditions and General Requirements for 136RE Rail:

1. All 136RE Rail shall be head hardened.

2. 136RE furnished by the Supplier shall meet the MBTA’s Material Specification No. 9633-A Rail-

Head Hardened Running Rail.

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.

2026 02851P - 2

b. Coordinating ship dates with the Supplier and storage of the track materials at the manufacture’s 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.

b. The Contractor shall be responsible for inspection and approval of all the materials that are delivered.

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 SUBMITTALS

A. Submit all inspection reports required in the material specification for 136RE at the back of this section.

B. All submittals will be reviewed for general conformance with the intent of the contract documents by the

EOR. This review will not relieve the Supplier of final responsibility for the means, methods, procedures, and sequences to be utilized.

1.4 QUALITY CONTROL

A. General

1. See MBTA‘s Material Specification No. 9633-A Rail-Head Hardened Running Rail.

PART 2 - PRODUCTS

2.1 MATERIALS TO BE FURNISHED BY THE SUPPLIER.

A. Provide new 136RE Rail in standard grade with minimum Brinell Hardness of 285 BHN in accordance with the attached MBTA Commuter Rail Standard Specification No. 9633-A RAIL-HEAD HARDENED

RUNNING RAIL.

1. 2020 AREMA Manual for Railway Engineering, Chapter 4, Part 2, pages 4-2-4.5 thru 4-2-4.10, Supplementary Requirements 5-2, and Appendix 1 shall also apply.

2. Short rails, 30 foot to 38 foot in length, will be accepted up to nine percent (9%) of the total rail required.

B. Refer to material specification for 136RE at the back of this section for more details.

2026 02851P - 3

2.2 WARRANTY

A. The 136 Rail shall be warrantied 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 DELIVERY, STORAGE AND HANDLING

A. The Supplier shall be responsible for the purchase, quality control, and testing of the rails at the point of manufacture, as well as coordinating and executing all freight, transport, and delivery of the rails 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.

PART 4 - MEASUREMENT AND PAYMENT

4.1 MEASUREMENT

A. Measurement of Liner Foot (LF) of 136RE Rail will be made for the work of this Section. The cost for all work, furnishing all materials required; providing all labor, transportation, handling, and storage at manufacturers; 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 shall be included in the Contract Unit Price for Item

0290.991P – 136 RE Rail.

4.3 PAY ITEMS

ITEM NO. DESCRIPTION UNIT

0290.991P 136 RE Rail LF

END OF SECTION

F60PS01 RAILROAD RUNNING RAIL MBTA N.A.

2026 02851 - 1 DES REV 03/2026

SECTION 02851

RAILROAD RUNNING RAIL

PART 1 - GENERAL

1.1 DESCRIPTION

A. This Section specifies electric flash butt welding of rail into continuous welded rail (CWR) strings and delivery and distribution of CWR strings within Project limits. The work consists of:

1. Coordinating and unloading the shipment of 136RE head hardened rail from the rail Supplier to the Project area.

2. Review of the materials from the Supplier

3. Electric flash butt welding of rail into CWR strings with length in accordance with Article 3.2.A.2 of this section

4. Delivery coordination and proper distribution of rail strings within project limits.

B. Related work specified elsewhere:

1. Section 02853 - CONTINUOUS WELDED RAIL INSTALLATION; Procedures for installation, thermal adjustment, and maintenance of CWR.

C. Project Conditions and General Requirements for CWR fabrication:

1. The Contractor shall plan the work to minimize the total number of welds in completed track.

2. Head hardened rails shall be used for all new track.

1.2 SUBMITTALS

A. Prior to production welding, prepare a list of all welded rail strings, their location, required length, and their location in the string.

B. Submit welding plant or mobile unit company name.

C. Prior to production welding, submit proper certification that each weld will be warranted by the

Contractor against workmanship or alignment defects.

D. Submit the identity and qualifications of the certified independent testing laboratory that will perform sample weld inspection and testing.

E. Prior to commencement of production welding, submit certification that each sample weld has passed required tests and inspections.

F. Submit daily during periods of production welding, the following:

FOR INFORMATION ONLY

2026 02851 - 2 DES REV 03/2026

1. Log of inspections and tests made using “WELD INSPECTION LOG” form included in this

Section.

2. Number of acceptable welds made.

3. Number of rail strings completed and number and length of each string and type of rail in each string, standard or head hardened rail.

G. Upon the completion of welding CWR strings, submit recorder charts and a record documenting the production of each string of CWR. Included shall be string number; string length; heat number of each piece of rail in the string; number of welds in the string; and number of any weld which had been cut out and re-welded. Use form “Welding Plant Rail Heat Numbers” included in this Section.

H. All submittals will be reviewed for general conformance with the intent of the contract documents. This review will not relieve the Contractor of final responsibility for the means, methods, procedures, and sequences to be utilized.

1.3 QUALITY CONTROL

A. General

1. Production welds, in track after final acceptance, will be warranted by the Contractor for one full year. Any weld found to be defective during the warranty period shall be replaced by the Authority and a penalty of $5,000.00 per defective weld shall be paid by the Contractor to the Authority.

2. Perform sample and production electric flash butt weld inspection and testing at no additional cost to the Authority.

3. Sample weld inspection and testing shall be performed by the approved certified independent testing company or laboratory. The Engineer may audit operations to ensure that inspections and tests are being performed in accordance with approved procedures and in compliance with these

Specifications.

4. Production weld inspection and magnaflux testing shall be performed by the welding crew and each weld shall be certified free of defects. The Engineer may audit inspection and testing to ensure that tests are being performed in accordance with these Specifications.

5. Sample and production welds made in head hardened rail shall be air quenched.

6. Sample and production welds shall have full penetration and complete fusion with no evidence of surface or internal fissures, cracks, porosity, or slag type defects.

7. To be accepted each weld must fulfill all the requirements of these Specifications.

B. Electric Flash Butt Weld Qualification, Inspection, and Testing

1. Prior to commencement of welding, each welding machine and operator shall be qualified based on sample welds passing the tests specified in this Article 1.3.B of this Section.

a. Each welding machine and operator shall make two sample welds of each type of head hardened rail. There shall be three samples of 136RE head hardened rail to 136RE head hardened rail. There shall be three samples of 132RE head hardened rail to 132RE head

2026 02851 - 3 DES REV 03/2026

hardened rail. Each of the two samples from every set of samples shall be inspected and tested.

b. Assign each sample weld a number and mark each weld with that number and type of rail using a permanent marking device.

c. Submit with each sample weld for inspection and testing, a record of the following signed by the welding supervision:

1). Sample Weld number.

2). Welding machine identification.

3). Welding machine operator.

4). Brand, rolling date, heat number, and type of rail used on each side of the weldment.

5). Date welded.

d. The sample weld shall join two pieces of rail each a minimum of 30 inches to a maximum of 36 inches in length. Rail pieces to be used for the sample welds shall be cut from both

136RE running rail and 132RE restraining rail received for this project. Each rail shall be coded for identification and comparison with the record submitted.

2. Test each set of two sample welds as follows:

a. Perform Slow Bend Test specified in Article 1.3.B.3 of this Section on one sample weld.

b. Perform Hardness Test specified in Article 1.3.B.4 of this Section on one sample weld.

3. Slow Bend Test

a. Subject sample weld which has pass to the Slow Bend Test in accordance with the recommended practices of the current AREMA Manual for Railway Engineering (MRE), Chapter 4, Section 3.10.

b. The acceptance criteria for this test shall be a minimum deflection of 0.75 inch deflection with minimum 125,000 pounds per square inch modulus of rupture for head hardened rail.

4. Hardness Test

a. Longitudinally cut a cross-section of a second sample weld of each type of rail for a maximum distance of one foot each side of the weld and test by the Brinell Hardness or

Rockwell C Hardness Test.

b. No weld shall have hardness values greater than 400 BHN or 43 Rc. Test welded zone in accordance with the recommended practices of the current AREMA MRE Chapter 4, Section 3.10. The minimum Brinell Hardness number of parent metal is published at 310 for standard rail and a minimum of 370 for high strength rail.

c. For a weld to be acceptable the weld material and heat affected zone of each rail, not more than 6 inches from weld center line, must meet the minimum hardness above for standard or head hardened rail. Hardness within the weld shall be within plus or minus 30 BHN points or plus or minus 5 Rc of parent rails head hardness except at decarburized centerline and at the spherodized edge of the heat affected zone.

d. Inspect macro etched section for compliance with shop weld requirements of full penetration, complete fusion, and internal defects specified herein.

2026 02851 - 4 DES REV 03/2026

5. Approval of welding process, welding machine, and operator will depend upon sample welds satisfying the specified requirements. Should any sample weld fail to satisfy specified requirements, then the welding process, welding machine or both shall be altered or adjusted to produce an acceptable weld and the tests shall be repeated. Any change required correcting sample weld failure, or any change of procedure, equipment or personnel shall require additional submittals as specified in Article 1.2 of this Section.

6. Satisfactorily complete qualification testing specified herein, prior to production welding.

C. Production Welding – Inspection and Testing

1. During production welding test and inspect welds as specified herein to ensure compliance of each shop weld with requirements of these Specifications.

2. Magnaflux Testing

a. Inspect welds by the dry powder magnetic particle method in accordance with ASTM

E709.

b. Cut out welds giving fault indication in magnetic particle inspection and re-weld rails in accordance with these shop welding specifications.

3. Physical Inspection

a. Inspect welds with a three-foot certified straightedge similar to a No. 270 Starrett, along the centerline of top of rail and 5/8 inch below top of rail on gauge side of the rail head.

b. With straightedge centered over weld the gap between straightedge and rail shall not exceed the recommended practices of the current AREMA MRE of Chapter 4 for surface misalignment tolerance and gauge misalignment tolerance. The relevant data from the recommended practices of the AREMA MRE for surface alignment is shown in this

Section.

c. Cut out welds not meeting these straightness tolerances and re-weld rails in accordance with these shop welding specifications.

d. Shop or Mobile Weld Machine Performance

1). During preparation of sample welds and during production welding attach a chart recorder, with certified calibration, to each welding machine to record platen movement and current impulses during welding. Chart recorder shall be calibrated at least daily.

2). The weld will be rejected if the record indicates a performance which is not in conformance with standards submitted and approved under this Article.

4. Rejected Welds

a. Welds cut out due to not passing Magnaflux test, physical Inspection or due to improper welding machine function shall be replaced at Contractor's expense.

2026 02851 - 5 DES REV 03/2026

PART 2 - PRODUCTS

2.1 MATERIALS TO BE FURNISHED BY THE AUTHORITY

A. MBTA will provide all 136RE rail. There will be no material purchased and supplied by the Contractor for this work.

2.2 MATERIALS TO BE FURNISHED BY THE CONTRACTOR.

A. None

PART 3 - EXECUTION

3.1 DELIVERY, STORAGE AND HANDLING

A. The Contractor is responsible for reviewing for conformance with specifications material from the

Supplier.

B. The Contractor is responsible for the unloading of CWR rails from the manufacturer. The Contractor is responsible for the subsequent handling, storage, loading, unloading, and security of rail relative to the welding and distribution of CWR strings. The Contractor is responsible for scheduling associated with the movement, unloading, welding, delivery, and distribution of rail.

3.2 FABRICATION

A. Continuous Welded Rail

1. General

a. Provide continuous welded rail for running rail within work limits as indicated on Contract

Drawings.

b. Electric flash butt weld rail in accordance with the recommended practices of the current

AREMA Manual of Railway Engineering (MRE) for the Fabrication of Continuous Welded

Rail, Chapter 4, except as modified herein.

c. Weld rails with brand of each rail on same side of CWR string. All CWR strings shall have the brand on the same side throughout the Contract.

d. Make all welds by the electric flash butt welding process.

e. Straightening of welds shall be performed in a manner which minimizes the bending of rail.

f. Incomplete welds or welds that fail to pass inspections per Article 1.3 of this Section shall be cut out using a rail saw and the rails re-welded. The section cut out of rail must include heat affected zone of each rail. Use of cutting torch or other heat dependent device to cut out defective weld shall not be permitted.

2. Continuous Welded Rail String Lengths

a. The Contractor shall determine the maximum CWR string length required for the proposed work. CWR string lengths shall be a minimum of 1500 feet long. Where site constraints prevent such strings, CWR strings may be created to a minimum length of 500 feet, with

2026 02851 - 6 DES REV 03/2026

approval of the MBTA. The Contractor shall create a schedule of required strings, their location, and length, locating all field welds. Do not weld any length of rail less than 18 feet into a CWR string.

b. Using a permanent marker, in the web of standard rail, clearly mark string number on first rail in a CWR string and string number and length of string, in feet, on the last rail in the string. Use Nissen metal marker as manufactured by J. P. Nissen, Jr., Co. or approved equivalent.

c. All rails shall be head hardened.

d. If it is necessary to drill a hole in the first rail of a CWR string for handling purposes the hole shall be drilled as the second hole per MBTA Standard Plan 300. If rail is damaged at hole location, the damaged end shall be cut off at Contractor's expense.

3.3 DISTRIBUTION OF CONTINUOUS WELDED RAIL (CWR) FROM A MOBILE OR FIXED

PLANT

A. General

1. Only load continuous welded rail strings onto rail cars, or other suitable transporting equipment, specially equipped to handle CWR.

2. Handling, loading, transporting, and unloading of continuous welded rail shall be in accordance with the recommended practices of the current AREMA MRE and these Specifications.

B. Distribution

1. Distribute CWR strings within project limits where required.

a. Ends of CWR strings shall be offset and blocked to prevent buckling and the standard overlap shall be two feet.

b. Rails shall not be run out over crossings or across side track side of turnouts but shall be laid on either side of crossings and side tracks unless otherwise directed by the Engineer.

c. Rail strings shall be set on crossties removed from existing track at minimum 100 foot intervals, one-tier high.

d. Rail strings shall be moved to the approved locations by equipment designed to handle

CWR without causing damage to the rail, existing or newly constructed track. Dragging of welded strings is prohibited.

C. Rail Installation shall be as specified in Section 02853 – CWR INSTALLATION.

2026 02851 - 7 DES REV 03/2026

PART 4 - MEASUREMENT AND PAYMENT

4.1 MEASUREMENT

A. No separate measurement will be made for the work of this Section. The cost for all work, complete in place; installing all materials furnished by the MBTA, equipment and accessories required; providing all tools, labor, transportation, handling and storage; 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. Payment for Railroad Running Rail will be included in the Contract Unit Price for Item 0291.012 –

TRACK CONSTRUCTION and Item 0291.248 SPECIAL TRACKWORK INSTALLATION.

END OF SECTION

2026 02851 - 8 DES REV 03/2026

2026 02851 - 9 DES REV 03/2026

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2026 02851 - 12 DES REV 03/2026

2026 02851 - 13 DES REV 03/2026

2026 02851 - 14 DES REV 03/2026

j l.t-..., DO NOT DRILL FIRST HOLE UNLESS

I SPECIFICALLY ORDERED. TO BE FIELD

DRILLED WHEN REQUIRED.

,,,.L.,. _Lb .

-----+-l \ . ~--·---- .. ----l'lt:J tl,.dJ

-~t.....--~~--~---6"~------------J-.· ~1-..-.----at• ______ __....._io--____________ ,.~------------..... --------~---t"~--~--~~~---J~

SECTION DRILLING

MINIMUM

Atta Sq.In.

Htod····· 4.42 Wtb···-·U& eo ........ 4,11

Totol····l2,9!5

MATHEMATICAL ATTRIBUTES

Percent 34.1 28.3

...IL.!.

100.0

Moment or lnertlo ...... - -.- .. --- 88.2 Section l'n0dulut hffd•- ..... ____ 22.s

Section modulut bo11 .... - ...... ___ 27.6

RoUo m.I. to arto-- ... ·------- 6.91 Rotlo 1,m.tltod ioorta---.. --.. - 1.74

Rotlo hth~flt to boH· -- ----.. - 1.19 CotculOttd welghf,lbt.Ptf yord- ---132.1 Net Ton• per M II• of Track - • • 232.!SO ftoU1 shall eonfOf'm fo currant A A.£'.A.

"SPtCmcotlon For°"" Heorth StHI Rollt,11

9KC&pt all rolls within 11peclul tr®tlwC>rk 8hall be fully he cat t reo ted, :::ucHUSETTS RAlLROAD ~~~· 1302 !~;~~~?NATION OPERATIONS oc t. 2.6, 1992 (2)

ISSUE OllT!: 1ss'ui"" uo .

· 13 2 LB R E RAIL

AREMA

136RE

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

PUR-CK-006

90% DESIGN

SUBMISSION

PRE-PURCHASE

SUBMISSION

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

PUR-CK-101

90% DESIGN

SUBMISSION

PRE-PURCHASE

SUBMISSION

New 136RE Rail and Timber Ties (in green)

New 136 RE Rail and composite ties (in yellow)

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

PUR-CK-102

90% DESIGN

SUBMISSION

PRE-PURCHASE

SUBMISSION

New 136RE Rail and Timber Ties (in green)

New 136RE Rail and composite ties (in yellow)

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

PUR-CK-501

90% DESIGN

SUBMISSION

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

PUR-CK-502

90% DESIGN

SUBMISSION