LRMP T3 Cromwell_T-2443-0150 - RFP Book 3 2026-07-15_redacted.pdf

BOOK 3 – Technical Requirements

Light Rail Modernization Program (LRMP)

CROMWELL MAINTENANCE AND STORAGE FACILITY

MODERNIZATION PROJECT

TRANCHE 3

DESIGN-BUILD (DB)

BOOK 3 – TECHNICAL REQUIREMENTS

CONTRACT NUMBER: T-2443-0150

Maryland Transit Administration Light Rail Modernization Program (LRMP) TRANCHE 3

T-2443-0150 Page i of iv Book 3 (Technical Requirements)

TABLE OF CONTENTS

1 CIVIL, STREETS, AND ROADWAYS

1.1 Overview

1.2 Administrative Requirements

1.3 Functional Requirements

1.4 Design Requirements

1.5 Slopes and Earth Embankments

1.6 Pavement

1.7 Materials and Equipment

1.8 Summary of Submittals

2 LAND SURVEYING

2.1 Overview

2.2 Administrative Requirements

2.3 Design and Construction Requirements

2.4 Summary of Submittals

3 GEOTECHNICAL

3.1 Overview

3.2 Administrative Requirements

3.3 Design Requirements

3.4 Construction Requirements

3.5 Summary of Submittals

4 TRACKWORK

4.1 Overview

4.2 Administrative Requirements

4.3 Design Requirements

4.4 Design Submittal Requirements

4.5 Construction Requirements

4.6 Summary of Submittals

5 DRAINAGE, STORMWATER MANAGEMENT AND EROSION AND SEDIMENT CONTROL

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5.1 Overview

5.2 Administrative Requirements

5.3 Surface Drainage

5.4 Stormwater Management and Erosion and Sediment Control

5.5 Surface Drainage Submittal Requirements

5.6 Summary of Submittals

6 TRAFFIC

6.1 Overview

6.2 Administrative Requirements

6.3 Functional Requirements

6.4 Design Requirements

6.5 Construction Requirements

6.6 Summary of Submittals

7 UTILITIES

7.1 Overview

7.2 Administrative Requirements

7.3 Design Requirements

7.4 Construction Requirements

7.5 Summary of Submittals

8 CROMWELL MAINTENANCE AND STORAGE FACILITY (MSF)

8.1 Overview

8.2 Administrative Requirements

8.3 Functional Requirements

8.4 Design Requirements

8.5 Construction Requirements

8.6 Summary of Submissions

9 LANDSCAPE

9.1 Overview

9.2 Administrative Requirements

9.3 Functional Requirements

9.4 Design Requirements

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9.5 Plant Selection Requirements

9.6 Landscape Establishment Period

9.7 Design Submittal Requirements

9.8 Summary of Submittals

10 OVERHEAD CONTACT SYSTEM

10.1 Overview

10.2 Administrative Requirements

10.3 Functional Requirements

10.4 Design Requirements

10.5 Material and Equipment Requirements

10.6 Construction Requirements

10.7 Summary of Submittals

11 TRACTION POWER SYSTEM

11.1 Overview

11.2 Cromwell Yard Project Scope

11.3 Administrative Requirements

11.4 Functional Requirements

11.5 Design Requirements

11.6 Material and Equipment Requirements

11.7 Construction Requirements

11.8 Summary of Submittals

12 TRAIN CONTROL

12.1 Overview

12.2 Administrative Requirements

12.3 Design Requirements

12.4 Summary of Submittals

13 COMMUNICATION SYSTEMS

13.1 Overview

13.2 Administrative Requirements

13.3 Communication System Functional Requirements

13.4 Material and Equipment Requirements

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13.5 Construction Requirements

13.6 Summary of Submittals

14 CORROSION CONTROL

14.1 Overview

14.2 Administrative Requirements

14.3 Functional Requirements

14.4 Design Requirements

14.5 Material and Equipment Requirements

14.6 Construction Requirements

14.7 Summary of Submittals

15 CROMWELL YARD FIRE PROTECTON

15.1 Overview

15.2 Administrative Requirements

15.3 Functional Requirements

15.4 Design Requirements

15.5 Construction Requirements

15.6 Fire Protection Design Deliverables

15.7 Summary of Submissions

16 SUSTAINABILITY

16.1 Overview

16.2 Administrative Requirements

16.3 Sustainability Design Deliverables

16.4 Summary of Submittals

APPENDIX A – GEOTECHNICAL BORINGS

APPENDIX B – NEPA DOCUMENT

APPENDIX C – VIDEO SURVEILLANCE SPECIFICATION

APPENDIX D – DESIGN GUIDELINES

APPENDIX E – NOT USED

APPENDIX F – PROPERTY BOUNDARY AND DEED

T-2443-0150 Page 1 of 323 Book 3 (Technical Requirements) Civil, Streets, and Roadways

1 CIVIL, STREETS, AND ROADWAYS

1.1 Overview

Design-Builder (DB) shall perform all civil, site, and roadway work in accordance with Section 1.

This section specifies the Basis of Design for access roads, service roads, parking lots, pedestrian facilities, and pavement design. This design shall be in accordance with the Maryland Transit Administration Light Rail Transit – Design Criteria Manual (DCM), and as otherwise required.

1.2 Administrative Requirements

1.2.1 Codes and Standards

All civil, street, and roadway work shall comply with the requirements of the codes, standards, manuals, and guidelines including, but not limited to those listed in Table 1-1. DB shall use the most current version of each listed Codes and Standard unless otherwise noted.

Table 1-1: Codes and Standards

No. Organization Name

1 ACI Code 318-25

2 AASHTO A Policy on Geometric Design of Highways and Streets

3 AASHTO Roadside Design Guide

4 AASHTO Guide for Design of Pavement Structures

5 AASHTO Guide for the Planning, Design and Operation of Pedestrian Facilities

6 FHWA Geotechnical Engineering Circular No. 5 – Evaluation of Soil and Rock Properties

7 FHWA/MDOT Maryland Manual on Uniform Traffic Control Devices

8 MDOT SHA Book of Standards for Highway & Incidental Structures

9 MDOT SHA Guidelines for Traffic Barrier Placement and End Treatment Design

10 MDOT SHA Highway Policies and Procedures Manual

11 MDOT SHA Pavement & Geotechnical Design Guide

12 MDOT SHA Pedestrian and Bicycle Design Guidelines

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No. Organization Name

13 MDOT SHA Standard Specifications for Construction and Materials

14 MDOT SHA Supplemental Specifications and Provisions

15 USDOJ ADA Standards for Accessible Design

16 USDOJ Americans with Disability Act Accessibility Guidelines

17 USDOT Public Right-of-Way Accessibility Guidelines (PROWAG)

18 COMAR Code of Maryland, Maryland Accessibility Code Section 09.12.53

19 COMAR Maryland State Fire Prevention Code, Amended NFPA 1 – 2024 Edition

20 CPTED Crime Prevention Through Environmental Design

1.3 Functional Requirements

Unless otherwise specified, roadway design shall be in conformance with the MDOT State Highway Administration (SHA) manuals, standards, and publications, and the American Association of State Highway and Transportation Officials (AASHTO) standards, except as modified herein. The most currently adopted editions of these standards are to be referenced and shall be adhered to in the design of roads and pedestrian facilities, except when a state or local agency having jurisdiction specifies otherwise. If standard criteria conflict, MDOT SHA standards shall be used. The standards are listed above in Table 1-1 and are in no particular order of preference.

The Access Road design shall be in accordance with, but not limited to, the following functional requirements:

A. Provide an Access Road from the existing north entrance from MD 648 (Baltimore Annapolis Blvd.) to the Cromwell Maintenance Facility Existing Shop and Proposed Annex Buildings. The Access Road shall be designed to accommodate an AASHTO WB-67 Design Vehicle, unless otherwise directed by the MTA.

B. The Access Road shall allow access to all sides of the Proposed Annex Building and meet the requirements of the Maryland State Fire Prevention Code and approved by the Maryland State Fire Marshall and the Anne Arundel County Fire Department (AACoFD).

C. Provide access to the Employee Parking lot, adjacent to the public parking lot, from the proposed Access Road.

D. Provide access to a loading area for proposed Track 22. This loading area shall be adjacent to both proposed Track 22 and the Access Road.

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E. Provide Service roads between the proposed tracks. These Service roads shall be accessible from the Access Road.

F. Provide a two-lane Access Road configuration.

G. Provide full access for pedestrians and motorists to the Cromwell Maintenance Facility Existing Shop and Proposed Annex Buildings.

H. Provide retaining wall for roadways to handle traffic loads, lateral earth pressure, and environmental conditions. Design requirements for the retaining wall shall be in accordance with the DCM.

1.4 Design Requirements

1.4.1 Clearing and Grubbing and Site Preparation

The existing site demolition plan shall note that prior to demolition of the existing site, all existing storage containers and materials located in areas of demolition or that may be in the way of or damaged by construction, shall be relocated by the DB to another location as designated by the Administration.

Any materials designated by the Administration for removal and retention for future use shall be relocated to a location specified by the Administration.

1.4.2 Roadway Geometry

DB shall design access and service roadways in accordance with the Codes and Standards provided in Table 1-1. DB shall match the posted speed (15 mph) of the existing access and service roads located within the Cromwell Yard property.

1.4.2.1 Horizontal Alignment

The Access Road horizontal alignment shall accommodate the proposed LRT system and minimize impacts to the existing parking lots and buildings. The horizontal alignment shall be designed in accordance with the Codes and Standards provided in Table 1-1, based on the functional classification of the roadway and posted speed (15 mph) of the existing and proposed roadways.

1.4.2.2 Vertical Alignment

The Access Road vertical alignment shall be designed in accordance with the Codes and Standards provided in Table 1-1. The alignment shall be based on the posted speed (15 mph) of the roadway and shall be designed to accommodate track vertical alignment. The service road vertical alignments shall match the alignments of the adjacent proposed track.

Refer to Section 10 and applicable OCS design requirements for vertical clearance of catenary wires above the travel lanes and shoulders on roadways crossing LRT guideways.

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1.4.3 Typical Section

Travel lanes, shoulders, parking lanes, and other typical section elements shall comply with the requirements as follows:

A. Widths of new roadway and pedestrian facilities shall comply with the DCM.

B. Widths of existing roadway and pedestrian facilities shall not be reduced unless approved by the Administration.

C. Smooth transitions shall be made from new and reconstructed portions of the road to the existing typical sections.

D. At locations where the Access Roadway is adjacent to the Existing Main Building or Proposed Annex Building, the design shall comply with the Maryland State Fire Prevention Code and approved by the Maryland State Fire Marshall and the Anne Arundel County Fire Department (AACoFD).

1.4.4 Cross Slopes

Cross slopes on existing roadways to be wedged and leveled to reach a 1.5% minimum to 2.5% maximum slope or shall meet AASHTO standards based on roadway functional classification, unless otherwise directed by MTA. Cross slopes on new roadways shall conform to the Codes and Standards provided in Table 1-1 unless otherwise directed by the Administration.

1.4.5 Limits of Roadway Work

DB shall identify the necessary Limits of Work (LOW) on roadways to comply with the requirements of the Cromwell Yard Project. The localized LOW shall conform to the following:

A. For widening or reconstruction of any portion of a roadway, DB shall, at a minimum, resurface the entire roadway width within the longitudinal limits of the reconstruction.

B. Resurface the entire width of a roadway after any portion of the roadway has been subject to eradication of permanent or temporary pavement markings that result in visible damage to the existing roadway surface compared to what is shown in the Existing Conditions Site Documentation; and

C. When Utility patching on roadways is within 50 feet of the otherwise established paving or resurfacing limits, DB shall extend the paving or resurfacing limits to cover the Utility patching.

1.4.6 Sidewalks

Existing sidewalks within the Cromwell Yard that are impacted by the project or do not meet ADA standards shall be reconstructed or replaced in accordance with the Codes and Standards provided in Table 1-1 and ADA design standards. DB shall provide new sidewalks to ensure pedestrians have access to all Cromwell buildings and the employee parking lot per the Codes

T-2443-0150 Page 5 of 323 and Standards provided in Table 1-1. At a minimum, sidewalks shall have a 5 feet clear width, measured from back of curb, and shall have a maximum cross slope of 2%.

The replacement of sidewalks due to other incidental work, such as utility relocations, lighting, etc. shall be considered part of the project. Limits of replacement shall be approved by the Administration.

1.4.7 ADA Curb Ramps

DB shall provide ADA compliant sidewalk curb ramps within the limits of all sidewalk and roadway Work including roadway resurfacing. DB shall construct sidewalk curb ramps in accordance with the Codes and Standards provided in Table 1-1.

DB shall provide new ramps where sidewalks cross vehicular ways and the curb returns consequently require modifications as part of the project. It shall not be necessary to provide ramps and curb cuts where no sidewalk exists.

1.4.8 Curbs

DB shall provide concrete curbs, combination curb and gutter along new, widened, or reconstructed access roads to be owned or maintained by the Administration, unless ESD practices require open sections for sheet flow into the facilities. Concrete curb or curb and gutter shall be installed around the islands of the reconfigured employee and public parking lots.

Concrete curb height shall be 6 or 8 inches depending on posted speed and subject to approval by the Administration.

1.4.9 Parking

DB shall reconfigure the existing parking lots to accommodate the new tracks and Access Road, or as approved by the Administration. DB shall maintain as many existing parking spaces as possible.

Non-ADA parking spaces shall be a minimum of 9 feet wide and 18 feet long with aisle widths at a minimum of 20 feet. Parking shall include the number and size of handicapped spaces according to the Code of Maryland.

A separate access-controlled parking lot shall be provided for Cromwell Yard employees. This lot shall have entrances from the Access Road and the public parking lot. This lot shall also be connected to the Cromwell buildings with a sidewalk.

1.4.10 Traffic Barriers

DB shall determine the use of traffic barriers and minimize the need for traffic barriers by relocating roadside obstacles outside the clear zone, according to the Codes and Standards provided in Table 1-1. Where clear zone requirements cannot be met, DB shall provide traffic barriers in accordance with the DCM.

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DB shall evaluate all existing traffic barriers within the Cromwell Yard property to determine if they are impacted by the Project. If the traffic barrier meets the DCM and is in acceptable condition as approved by the Administration, it may remain in place. If the traffic barrier does not meet current standards, DB shall upgrade or replace the traffic barrier.

1.4.11 Fencing and Gates

DB shall place fence along the perimeter of the Cromwell Yard, proposed LRT, and Access Road, to secure the facility and/or as directed by the Administration. Fencing type and materials shall be in accordance with the DCM.

In locations where the use of ROW fence is deemed appropriate by the Administration, ROW fence shall be constructed 2 feet inside the project ROW line, except where the fence shall be located a maximum of 2 feet inside the limit of disturbance (LOD) where the project LOD has been adjusted inside the ROW to minimize impacts to environmental resources. The alignment of ROW fence shall be adjusted to minimize clearing of and damage to existing trees. ROW fence shall have a minimum height of 6 feet and be in accordance with the DCM.

Damaged and/or detached existing fencing within the project limits shall be removed and replaced with the appropriate fence as specified by the Administration. Fencing shall be replaced in 25-foot minimum lengths. Damaged sections to be replaced within 100 feet of each other shall be replaced throughout the 100-foot section. Fence sections shall only be removed if they can be replaced on the same day. No openings in the fence are allowed overnight.

Vehicular access gates shall be provided at the Access Road and employee parking lot, or as directed by the Administration. The gates shall be motor-operated and designed to slide horizontally to provide a 25-foot unobstructed opening. The vehicular gates shall be operated locally through coded identification proximity card readers located on either side of the gate.

1.4.12 Roadway Design Submittal Requirements

DB shall prepare Roadway Design Documents that include, at minimum, the following:

A. Initial Roadway Design Submittal

1. Plans

A) Geometry control and data sheets for roadway baselines;

B) Existing site demolition plan sheets;

C) Roadway plan sheets including but not limited to the following elements:

sidewalks, sidewalk curb ramps, loading areas, curbs, medians, islands, traffic barriers, parking lots, and limits of roadway work;

D) Vertical alignment sheets for roadways;

E) Retaining wall plans and details sheets including but not limited to wall limits, wall types, elevations, and typical sections

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F) Typical section sheets including roadway and pedestrian elements;

G) Pavement detail sheets; and

H) Miscellaneous detail sheets to show non-standard details or additional details as required.

2. Design Calculations for all proposed and temporary alignments including, but not limited to:

A) Horizontal sight distance;

B) Vertical sight distance; and

C) Clear zone.

3. Design calculations for common types of walls with specific material and construction requirements.

4. An Outline Specification.

B. Intermediate Roadway Design Submittal

1. Updates to all plans and calculations included in the Initial Roadway Design Submittal.

2. Plans

A) Intersection detail sheets including but not limited to the following elements:

curb ramps, curb return stakeout charts, islands, sidewalk stakeout charts;

and

B) Cross sections at even 50-foot stations, at driveways, and at other critical locations.

3. Calculations

A) Intersection geometrics, including but not limited to, curb radii and stakeouts, etc.; and

B) Traffic barrier length of need.

4. Technical Specifications.

C. IFC Roadway Design Submittal

1. Updates to reports, plans, and technical specifications in the Final Roadway Design Submittal.

2. Retaining Wall

DB shall submit the Roadway Design Documents for each primary Submittal package to MTA in accordance with Table 1-2.

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1.4.13 Potential Design Exceptions

DB shall verify potential exceptions to determine if a design which satisfies all the requirements of the DCM can be provided. If an exception is still required, DB shall provide a design with noncompliant values that are as close to the required values as reasonable. DB shall prepare a Design Exception Report for each exception and obtain approval for all design exceptions from the Administration. The Design Exception Report shall include, at a minimum, the following:

A. Specific design criteria that will not be met;

B. Existing roadway characteristics;

C. Alternatives considered;

D. Comparison of the safety and operational performance of the roadway;

E. Impacts such as ROW, environmental, cost, schedule, and usability by all modes of transportation related to obtaining the minimum criteria;

F. Proposed mitigation measures; and

G. Exhibits showing the proposed design.

1.5 Slopes and Earth Embankments

Compaction, material, slope, and analysis requirements for embankment fill shall be in accordance with the DCM.

DB shall analyze the effect of embankment and train loads on existing and proposed Utilities, structures, and other facilities. DB shall mitigate impacts through protection or replacement of impacted Utilities, structure, or other facilities as required by the DCM.

1.6 Pavement

1.6.1 Pavement Design

DB shall match the existing pavement section as shown in the as-built plans provided by the Administration for all new, reconstructed, and overlayed pavement.

DB shall confirm that the existing pavement section including, but not limited to pavement type, minimum thickness, and subgrade design values are in accordance with the DCM and have a minimum 25--year design life. In instances where the existing pavement section is not in accordance with the DCM, pavement designs for roadways and parking lots shall be performed in accordance with the MDOT SHA Pavement and Geotechnical Design Guide, the AASHTO Guide for the Design of Pavement Structures, and the applicable MTA design requirements. DB shall obtain acceptance of the pavement design from the Administration, in accordance Section 1.6.3.

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1.6.2 Paving Limits

DB shall chamfer all horizontally tapered pavement sections in order to prevent a narrow section of resurfaced asphalt from having a width less than 1-foot.

1.6.3 Pavement Design Report

DB shall prepare a Pavement Design Report that includes, at a minimum, the following:

A. A summary of the existing pavement history;

B. A full description of the planned improvements;

C. A discussion of the design traffic loadings used for determination of pavement sections;

D. The design parameters used for the determination of pavement sections; and

E. Recommended pavement type and structural sections.

1.7 Materials and Equipment

Roadway materials including but not limited to, sidewalk, curb, combination curb and gutter, curb ramps, islands, detectable warning surfaces, fences, and barriers for new and reconstructed facilities shall conform to the requirements of the DCM.

1.7.1 Pavement

Roads and parking surfaces shall be either Portland cement concrete or bituminous asphalt.

Reconstructed or widened pavements shall be of materials similar to those which existed prior to transit construction, except where obsolete paving materials existed. In those instances, replacement will not be in-kind, but current specifications and practices shall control.

Pavement materials shall conform to the Codes and Standards provided in Table 1-1 and shall be approved by the Administration.

1.7.2 Borrow

Soil and aggregate borrow materials, and compaction shall comply with the requirements of the

DCM.

Lightweight fill materials consisting of expanded poly styrene (EPS), lightweight foamed concrete fill (LFCF), or lightweight aggregate may be used provided that applicable testing is performed in accordance with AASHTO standards, NCHRP Report 529, NCHRP Web Document 65, ACI guidelines, and the DCM. If DB intends to use such lightweight fill materials, DB shall prepare a DB formatted Lightweight Fill Materials Request that includes, but not limited to the following:

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A. A full description of the planned improvements;

B. The design parameters;

C. Reason for the use;

D. An exhibit showing the proposed location of where it is to be used; and

E. Correspondence from the MTA approving of the use of the lightweight fill material.

DB shall submit the Lightweight Fill Materials Request to the Administration in accordance with Table 1-2.

1.8 Summary of Submittals

Table 1-2 reflects a list of Submittals identified in this Section 1 and is not intended to be an all-inclusive listing of Submittals. DB shall determine and submit all Submittals as required by the Codes and Standards provided in Table 1-1, Governmental Approvals, and the Administration.

Table 1-2: Submittal Summary

CDRL

No.

Submittal Submittal Schedule Section Reference

B3-01-01 Initial Roadway Design Submittal

When the design for a given element or segment is approximately 30% complete

1.4.12

B3-01-02 Intermediate Roadway Design Submittal

When the design for a given element or area is approximately 85% complete

1.4.12

B3-01-03 IFC Roadway Design Submittal

When the design for a given element or area is 100% complete and all previous comments have been addressed and appropriately incorporated

1.4.12

B3-01-04 Design Exemption Report

With the Initial Design Submittal for the associated roadway plans

1.4.13

B3-01-05 Pavement Design Report

With the Initial Design Submittal for the associated roadway plans

1.6.3

B3-01-06 Lightweight Fill Materials Request

With the Intermediate Design Submittal for the associated roadway plans

1.7.2

END OF SECTION

T-2443-0150 Page 11 of 323 Book 3 (Technical Requirements) Land Surveying

2 LAND SURVEYING

2.1 Overview

This section specifies the Basis of Design for Land Surveying. The Land Surveying shall be in accordance with the Maryland Transit Administration Light Rail Transit – Design Criteria Manual (DCM), and as otherwise required.

2.2 Administrative Requirements

2.2.1 Codes and Standards

All land survey Work shall comply with the requirements of the codes, standards, manuals, and guidelines including, but not limited to those listed in Table 2-1. DB shall use the most current version of each listed Codes and Standard unless otherwise noted.

Table 2-1: Codes and Standards

No. Organization Name

1 MDOT SHA Survey Field Procedures Manual

2 MDOT SHA Integrated Design System CAD Standards, Committee, MicroStation V8 CAD Standards manual

2.2.2 Survey Data Provided to DB

DB shall review all existing survey data and determine the requirements for updating or extending the existing survey and mapping data. DB is responsible for the final precision, accuracy, and comprehensiveness of all surveys and mapping. DB shall be responsible for all surveys necessary for the Work. DB shall perform all land surveying and mapping under the direction of a Maryland Registered Professional Land Surveyor or Property Line Surveyor. All survey plans shall be signed and sealed by a licensed Maryland Registered Professional Land Surveyor.

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2.3 Design and Construction Requirements

2.3.1 Datum and Units

DB shall perform all land survey and mapping in accordance with the following:

A. Units: U.S. Survey Feet;

B. Horizontal Datum: Maryland State Plane Coordinate System, NAD 83 (2011) Epoch 2010; and

C. Vertical Datum: North American Vertical Datum (NAVD88).

2.3.2 Control Requirements

2.3.2.1 Monuments

DB shall protect all land monuments and property marks from disturbances or damages until DB has recorded their location. DB shall replace such monuments and marks upon completion of construction.

2.3.2.2 Horizontal Accuracy Requirements

2.3.2.2.1 Primary Control

The Administration has established primary control using conventional traversing methods.

2.3.2.2.2 Secondary Control

DB shall establish secondary control to control the mapping of the Cromwell Project. Secondary control shall be tied to and connect the primary control. DB shall establish secondary control using conventional traversing methods.

DB shall survey the secondary control to an accuracy standard of 0.01 feet of positional tolerance.

2.3.2.2.3 Supplemental Control

DB shall establish supplemental control for the purpose of gathering design-related data and meets and bounds surveys.

The supplemental control shall be tied to either the secondary control networks or the primary control networks, or a combination of both, and DB shall survey the supplemental control to an accuracy standard of two centimeters plus 50 parts per million of positional tolerance.

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2.3.2.3 Vertical Accuracy Requirements

The Administration has established vertical control.

2.3.2.4 Permanent Control Monuments

The Administration has established permanent control monuments.

2.3.2.5 Control Survey Records

DB shall reference each monument to at least three permanent, physical features to remain during Construction Work. DB shall prepare detailed sketches showing the monument and reference ties, as well as the general physical location.

DB shall prepare Control Survey Records and that includes all horizontal and vertical control work, including angles, distances, adjusted coordinates, levels, elevations, and references. DB shall catalog copies of their horizontal and vertical control adjustment files and final adjusted coordinates and elevations. The Control Survey Records shall also include:

A. All survey calculations related to control survey and design survey data;

B. Documentation of the information and rationale used to perform the land surveying Work;

C. Field notes;

D. Raw data and corrected data;

E. Research information, including deeds, title reports, assessors’ data, plats, and records of surveys;

F. Maps; and

G. CAD files and DTM files.

DB shall submit Construction Stakeout Field Records in accordance with Table 2-2.

2.3.2.6 ROW and Permanent Easement Records

The Administration has prepared ROW and Permanent Easement Records that include all ROW and permanent easement monument stakeout, including traverse used, stakeout computations with angles and distances, and references sketches. These records are provided in Appendix F.

2.4 Summary of Submittals

Table 2-2 reflects a list of Submittals identified in this and is not intended to be an all-inclusive listing of Submittals. DB shall determine and submit all Submittals as required by the Technical

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Requirements and Governmental Approvals MTA. At a minimum and unless otherwise specified in the Technical Requirements, DB shall submit the following to MTA:

Table 2-2: Submittal Summary

CDRL

No. Submittal Submittal Schedule Section Reference

B3-02-01 Signed and Sealed survey plans

Upon completion of the survey

2.2.2

B3-02-02 Control Survey Records Within 15 days of establishment of control.

2.3.2.5

T-2443-0150 Page 15 of 323 Book 3 (Technical Requirements) Geotechnical

3 GEOTECHNICAL

3.1 Overview

DB shall establish a geotechnical program as necessary to support the Work and enable design and construction of the Cromwell MSF Project. DB shall develop and execute plans to monitor and protect existing structures. The design shall be in accordance with the Maryland Transit Administration Light Rail Transit – Design Criteria Manual (DCM), and as otherwise required.

3.2 Administrative Requirements

3.2.1 Codes and Standards

All geotechnical Work shall comply with the requirements of the codes, standards, manuals, and guidelines including, but not limited to those listed in Table 3-1. DB shall use the most current version of each listed Codes and Standard unless otherwise noted.

Table 3-1: Codes and Standards

No. Organization Name

1 Maryland Dept. of Labor Maryland Building Performance Standards (MBPS)

2 International Code Council

International Building Code

3 AREMA Manual for Railway Engineering

4 AASHTO Manual on Subsurface Investigations

5 MDOT SHA Standard Specifications for Construction and Materials

6 MDOT SHA Supplemental Specifications and Provisions

7 MDOT SHA Pavement and Geotechnical Design Guide

8 MDOT SHA Standard Specification for Subsurface Explorations

9 FHWA Geotechnical Engineering Circular No. 5 – Evaluation of Soil and Rock Properties

3.2.2 Permits/Authorizations

Obtain all necessary permits and authorizations required to provide geotechnical services including those required to perform investigations.

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Permits and authorizations include but are not limited to those required for Utility clearance, property access, environmental, and roadway safety and traffic control.

All field personnel will be required to comply with Administration’s regulations including applicable training and insurance requirements.

In addition to public utility clearance, DB shall coordinate with the Administration and others when applicable to locate private utilities. Soft Dig techniques can be utilized to locate utilities if no damage to existing utilities is expected. The guidance in the MDOT Standard Specification for Subsurface Explorations, 2019 shall be followed.

3.2.3 Existing Geotechnical Information

MTA has provided existing geotechnical information for the Cromwell MSF Project. This information is from a Geotechnical Engineering Report prepared by E2CR, Inc. dated September 19, 2025. The available geotechnical data is limited to the Building Annex footprint.

This information is included in Book 4 – Reference Documents.

Although the geotechnical reports and geotechnical information included in Book 4 may include interpretations, extrapolations, analyses, and recommendations concerning data, design solutions, technical issues and solutions, and construction means and methods, such interpretations, extrapolations, analyses, and recommendations are subject to all the provisions and are:

A. Preliminary in nature;

B. Not intended to represent the views or preferences of the Administration or any other Governmental Entity or represent any statement of approval or acceptance thereof by Administration or any other Governmental Entity; and

C. Without representation or warranty by, or recourse to, the Administration

The information provided is not comprehensive and may not be sufficient to effectively design the geotechnical elements on the Project to meet construction and long-term performance requirements. The DB shall determine, design and execute supplemental subsurface investigations that ensure constructed Work meets the requirements.

The DB shall form its own interpretation of the existing geotechnical data and satisfy itself as to the nature and behavior of the ground and sub-soil, the form and nature of the Site, and nature of the Work that may affect its detailed design, construction method, and tools.

The DB shall perform its own geotechnical analyses and calculations to develop independent geotechnical recommendations for the Cromwell MSF Project to support DB’s design.

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3.3 Design Requirements

Provide geotechnical analysis and design for all structures and improvements, including, but not limited to building, retaining walls, embankments, cut slopes, utilities, and stormwater management facilities. Refer to Section 1.6 (Pavement) for requirements related to pavement design for the Project.

3.3.1 Supplemental Subsurface Investigations

Conduct supplemental subsurface investigations and subsequent geotechnical analysis and designs, as necessary, to meet minimum boring requirements based on the DB’s design and to supplement the existing geotechnical information provided in Book 4.

3.3.1.1 Test Boring and in Situ Testing Requirements

DB shall perform subsurface exploration in accordance with MDOT MTA, MDOT-SHA, AASHTO, and AREMA standards and as required to complete final design. In addition to the techniques described in the MDOT-SHA Standard Specification for Subsurface Explorations and AASHTO Manual on Subsurface Investigations, DB may utilize other testing methods as deemed necessary for final design. In case of conflict between the codes, state and local codes take precedence over the federal ones, for example, MDOT-SHA Subsurface Exploration Specifications precedes that of AASHTO.

Boring locations shall be selected to provide a complete profile along the element being evaluated. Select boring locations specifically for each element and do not use a general or non-specific approach.

DB shall follow the requirements of MDOT SHA Subsurface Exploration Specifications for the information to be shown on the boring logs and other test probes, as well as soil/rock sample descriptions.

Drilling fluids must be utilized below the groundwater table where soft clays or running sands are encountered.

DB shall describe and classify soil and rock in accordance with MDOT SHA Subsurface Exploration Specifications Section TS-12 and TS-13, respectively.

DB shall prepare final boring and rock core logs.

The soils and rock samples obtained by DB for the supplemental subsurface investigation must be the property of MTA. DB shall deliver samples to a designated location, as determined by the Administration, upon completion of construction. DB shall store soil and rock samples during Design Work and Construction Work, and the samples must be available for inspection by the Administration between the hours of 7:00 AM and 5:00 PM, Monday through Friday.

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3.3.1.2 Laboratory Testing

DB shall select laboratory testing to adequately characterize the soil and rock, support the design parameters, and provide information for evaluation of the DB’s design. Testing and methods are dependent upon the materials encountered and may include, but is not limited to, the tests listed in AREMA and the AASHTO Manual on Subsurface Investigations. For facilities and structures that will be owned, operated, or maintained by third parties or Utility Owners, DB shall comply with the standards of the third party or Utility Owner in addition to the standards referenced herein.

DB shall implement corrosion testing, including such tests as sulfate and chloride concentration, organic content, pH, and resistivity, using the general criteria of AASHTO.

DB shall use AASHTO Materials Reference Laboratory-accredited laboratories for all laboratory testing. Test methods must be performed in accordance with the appropriate AASHTO or ASTM standards.

All laboratory data shall be entered into the project gINT software file.

3.3.1.3 Subsurface Exploration Plan

Supplemental subsurface investigations may include SPT soil borings, CPT soundings, geophysical surveys, or other methods. DB shall prepare a Subsurface Exploration Plan that presents the full scope of the supplemental subsurface investigation and includes, at a minimum, the following elements:

A. Description of geology and ground types expected to be encountered including description of the existing geotechnical information;

B. Narrative describing the interpretation of the pertinent geotechnical data used as a basis for preliminary selection and design of the proposed project elements;

C. Boring plans including existing boring locations, proposed boring locations, relevant site features, and the site layout plan;

D. Exploration methods, and reporting and documentation procedures including borehole termination criteria, and borehole filling upon completion;

E. Anticipated laboratory testing;

F. Field organization, safety equipment, and precautions/procedures;

G. Infiltration testing methods (if required);

H. Methods for mitigating potential environmental hazards and contamination (if required);

I. Traffic control plans (if required);

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J. Methods and procedures to access boring locations and obtain right of entry (if required);

K. Procedures to avoid damage to utilities and existing adjacent structures (if required);

L. Site restoration and disposal of spoils; and

M. Health and safety plan.

DB shall submit the Subsurface Exploration Plan to the Administration in accordance with Table 3-2.

3.3.2 Design Criteria

3.3.2.1 Analysis and Design

DB shall perform geotechnical analysis and design based on the field and lab information collected during the supplemental subsurface investigation and existing information provided by the Administration (if applicable) considering the proposed structural and earthwork design geometry, locations, loading, and performance requirements for stability and deformation.

3.3.2.2 Geotechnical Engineering Report

DB shall prepare a Geotechnical Engineering Report (GER) for the Cromwell MSF Project, including at a minimum, the following:

A. Description of the project in enough detail to support the evaluations and recommendations in the report;

B. Definition of the engineering and design approach and the code requirements that will be followed;

C. Site description, including identification of existing above and below ground utilities and existing foundations that may be affected by the proposed construction or that weigh on the geotechnical evaluations and recommendations;

D. Definition of the geotechnical conditions as evaluated from field and laboratory test data and used in the development of the geotechnical design;

E. Graphics that clearly depict soil information with respect to the project elements. Plot borings on cross-sections or profiles. Plot to a reasonable and legible scale and include boring numbers, elevations, and content necessary to easily review proposed works in context with stratigraphy and material properties.

F. Assessment of the engineering properties of soil types, including the expected average, standard deviation, and range of soil strengths and deformation properties, and the design parameters for soil and rock types;

G. Summary of any design and analysis performed;

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H. Plan showing locations of borings, rock coring, geophysical testing, and other in situ testing;

I. Completed boring logs and laboratory testing results;

J. Relevant plan sheets and cross sections; and

K. Geotechnical recommendations and construction considerations for site-specific topics, including, but not limited to the following:

1. Summary of soil parameters recommended for design;

2. Recommended site-specific seismic design criteria and seismic site class;

3. Recommended ground improvement method(s) and/or use of lightweight fills (if any);

4. Corrosion potential of soils; applicable standards are:

A) Soil Resistivity per AASHTO T288, Sulfate ion (in Soil sample) per AASHTO T290 or ASTM D4327, Chloride ion (in Soil sample) per AASHTO T291 or ASTM D4327, pH in soil sample per AAHTO 289, Sulfide ion (per SM 4500-S2-D) and Oxidation reduction potential (Redox) per ASTM G200.

5. Impact of proposed construction to existing adjacent structures, utilities, and groundwater;

6. Dewatering recommendations and concerns;

7. Support of excavation requirements (if any) and open cut requirements with impact on adjacent structures and/or utilities;

8. Evaluations and recommendations for embankment and cut slope stability;

9. Any settlement or ground movement issues due to grade raise or earthwork that may affect existing or proposed facilities;

10. Waiting periods or construction sequencing requirements associated with consolidation settlement or construction using materials that require time to cure or gain strength (if any);

11. Railway track subgrade soil classification and bearing capacity;

12. Evaluations and recommendations for OCS pole and light pole foundations.

13. Construction recommendations for earthworks, stormwater facilities, roadways, and railway track including subgrade preparation and fill placement;

14. Vibration and deformation monitoring, including threshold and limiting criteria for each instrument, to prevent damage to nearby, above and below ground structures; and

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15. Quality control procedures during construction including field sampling and testing procedures for materials.

The Geotechnical Engineering Report must be prepared, signed, and sealed by a geotechnical engineer licensed in the State of Maryland. DB shall submit the Geotechnical Engineering Report to the Administration in accordance with Table 3--2. Foundation Design Reports. DB shall prepare a separate Foundation Design Report (FDR) for the following individual project elements or logical groups of project elements:

A. Buildings;

B. Retaining walls;

C. Reinforced slopes;

D. Culverts and headwalls;

E. OCS poles;

F. High-mast lighting; and

G. Temporary shoring.

DB shall organize the Foundation Design Report (FDR) in accordance with Maryland Building Performance Standards (MBPS) and the International Building Code (IBC) with the MBPS taking precedence in case of conflicts. The Foundation Design Reports must include, but not be limited to the following:

A. Project description to include foundation loads, settlement/deflection criteria, height of walls/abutments, and other design constraints;

B. Site description, including identification of existing utilities and existing foundations that may be affected by the proposed construction;

C. Definition of the engineering and design approach and the code requirements that will be followed;

D. Definition of the geotechnical conditions as evaluated from field and laboratory test data and used in the development of the geotechnical design;

E. Graphics that clearly depict soil information with respect to the project elements. Plot borings on cross-sections or profiles. Plot to a reasonable and legible scale and include boring numbers, elevations, and content necessary to easily review proposed works in context with stratigraphy and material properties;

F. Assessment of the engineering properties of soil types, including the expected average, standard deviation, and range of soil strengths and deformation properties, and the design parameters for soil and rock types;

G. Plan showing locations of borings, rock coring, geophysical testing, and other in situ testing; and

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H. Relevant boring logs and laboratory testing results;

I. Relevant plan sheets and cross sections;

J. Engineering analysis as applicable to each structure, including but not limited to:

1. Bearing capacity,

2. Settlement,

3. Overturning,

4. Sliding,

5. Global stability,

6. Lateral deformation, and

7. Seismic analysis.

K. Recommendations as applicable to each structure, including but not limited to:

1. Foundation type selections and design recommendations, including but not limited to, the following (as applicable);

A) Bearing capacity

B) Minimum size or length

C) Bearing stratum

2. Foundation subgrade preparation, excavation below subgrade requirements, foundation bedding material and backfill requirements;

3. Construction staging requirements, construction sequencing, waiting periods, setup times and other pertinent measures as it pertains to foundation performance and stability;

4. Results of corrosion testing and recommendations for corrosion protection;

5. Dewatering recommendations and concerns;

6. Vibration and deformation monitoring, including threshold and limiting criteria for each instrument, to prevent damage to nearby, above and below ground structures;

7. Recommended quality control procedures including field sampling and testing for materials;

8. Recommended axial testing of deep foundations;

9. Verification and proof testing of elements for the retention systems used for support of excavations (if any) such as tieback anchors, nails, or similar; and

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10. Quality control procedures during construction including field sampling and testing procedures for materials.

The FDR’s must be prepared, signed, and sealed by a geotechnical engineer licensed in the State of Maryland. DB shall submit the Foundation Design Reports to MTA in accordance with Table 3-2.

3.3.2.2.1 Reporting Requirements for Construction Failures

Additional design analysis is required if, during construction, an unexpected soil or rock failure (e.g., bearing capacity lower than predicted, overall stability not as predicted, slope failure, damage to unfinished construction due to rainfall events, or excessive deformation of temporary sheeting and shoring causing damage to constructed Work or private property) occurs. The results of the analysis and supplemental site investigation and design changes should be documented in an FDR meeting the previously defined report requirements and be submitted for MTA acceptance.

DB must complete additional soil borings or geotechnical exploration as required to support analyses in cases where damage or distress impacts planned permanent structural works, slopes, track, or pavement, depending on the severity of the issue and the proposed remediation. In cases where significant and unanticipated deformation occurs, additional deformation monitoring may be required to evaluate the performance of the solution depending on the nature of the remediation.

3.3.2.3 Depicting Geotechnical Works on Project Plan Sheets

Include in the IFC Documents construction details for geotechnical Works to ensure appropriate construction of these features. References in IFC Documents to the GERs and FDRs are not allowed.

3.4 Construction Requirements

3.4.1 Soil Management Plan

DB shall prepare a Soil Management Plan that includes, at a minimum, the following:

A. Cover sheet.

B. Table of contents.

C. Describe all items that DB shall test for, in the soil including, but not limited to:

1. Volatile organic compounds.

2. Polycyclic aromatic hydrocarbons.

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3. RCRA metals.

4. pH.

5. Toxicity characteristic leaching procedure metals

6. Synthetic precipitation leaching procedure metals by EPA methods.

D. Describe the method of testing of soil.

E. Include the percentage (10% minimum) of all soil tests that will be tested for polychlorinated biphenyls, pesticides, and herbicides.

F. Include the frequency of testing based on the cut volume of material.

G. Describe the depths of soil sampling for testing purposes.

H. Describe how DB shall log and submit all test results.

I. Describe procedures and location to dispose of soil waste.

DB shall submit the Soil Management Plan to MTA in accordance with Table 3-2.

3.4.1.1 Potential Environmental Hazards

No data is currently available at the Cromwell MSF Project site regarding soil corrosivity or environmental contamination. The Design Build team shall perform the required testing to identify any potential environmental hazards and/or corrosive soils that could impact construction.

3.4.2 Geotechnical Instrumentation and Monitoring Plan

DB shall determine what geotechnical instrumentation is required to monitor the impact of construction or demolition activities to protect the Project area and verify the stability of the proposed Work. The DB shall develop, implement, and maintain a documented Geotechnical Instrumentation and Monitoring Plan (GIMP). The DB shall install and monitor all geotechnical instruments. Any instruments that are damaged during construction and require removal and/or recalibration shall be replaced and/or recalibrated by DB.

The GIMP shall include the recommended instrument types, locations, installation requirements, zones of influence, critical readings, and frequency of readings. An action plan shall be presented that protects the nearby structures, utilities, or other elements if defined vibration thresholds or defined settlement limits are exceeded.

Depending on the DB approach to the work, the plan shall include instrumentation to provide information to help protect adjacent structures, pavements, utilities, slopes or other elements.

The Geotechnical Instrumentation and Monitoring Plan may include such parameters as:

A. Settlement and settlement rates of embankments;

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B. Pore water pressures;

C. Groundwater levels;

D. Stability of footings, walls and…