am_04.pdf

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore changed, remains unchanged and in full force and effect.

15A. NAME AND TITLE OF SIGNER (Type or print)

30-105-04 EXCEPTION TO SF 30

APPROVED BY OIRM 11-84

STANDARD FORM 30 (Rev. 10-83) Prescribed by GSA

FAR (48 CFR) 53.243

The Solicitation for Vehicle Bridge; Fort Hood, Texas is amended as follows.

See SF30 Continuation Sheet(s)

NOTE: Proposal receipt date 7 Aug 2020 at 2pm CT.

1. CONTRACT ID CODE PAGE OF PAGES

J 1 2

16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)

16C. DATE SIGNED

BY

16B. UNITED STATES OF AMERICA 15C. DATE SIGNED 15B. CONTRACTOR/OFFEROR

(Signature of Contracting Officer) (Signature of person authorized to sign)

8. NAME AND ADDRESS OF CONTRACTOR (No., Street, County, State and Zip Code) X 9A. AMENDMENT OF SOLICITATION NO.

W9126G20R0020

X 9B. DATED (SEE ITEM 11)

13-Apr-2020

10B. DATED (SEE ITEM 13)

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

X The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offer is extended, X is not extended.

Offer must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended by one of the following methods:

(a) By completing Items 8 and 15, and returning copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted;

or (c) By separate letter or telegram which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF YOUR OFFER. If by virtue of this amendment you desire to change an offer already submitted, such change may be made by telegram or letter, provided each telegram or letter makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

12. ACCOUNTING AND APPROPRIATION DATA (If required)

13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACTS/ORDERS.

IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE

CONTRACT ORDER NO. IN ITEM 10A.

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation date, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(B).

C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER (Specify type of modification and authority)

E. IMPORTANT: Contractor is not, is required to sign this document and return copies to the issuing office.

14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

10A. MOD. OF CONTRACT/ORDER NO.

2. AMENDMENT/MODIFICATION NO. 5. PROJECT NO.(If applicable)

6. ISSUED BY

3. EFFECTIVE DATE

03 -Aug-2020

CODE

US ARMY ENGINEER DISTRICT, FORT WORTH

ATTN: CESWF-CT

819 TAYLOR ST, ROOM 2A19

P.O. BOX 17300

FORT WORTH TX 76102-0300

W9126G 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODE CODE

EMAIL: TEL:

W9126G20R0020

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

CHANGES TO SOLICITATION W9126G20R0020

1. Replacement Sections: Replace the following section with the accompanying new section of the same number and title bearing the notation W9126G20R0020 0004:

01 10 00 - STATEMENT OF WORK

End of Summary of Changes

Turkey Run Road Bridge over Clear Creek Fort Hood (FY20)

Section 01 10 00 Page 1

Section 01 10 00

STATEMENT OF WORK

TABLE OF CONTENTS

Part 1 General Requirements Part 2 Structural Requirements Part 3 Telecommunications Requirements Part 4 Lighting Requirements Part 5 Demolition of Existing Structures

APPENDICES

Appendix A – Government Geotechnical Report.

Appendix B – Project Location Map, Haul Route, Topo Survey and Proposed Layout Appendix C – Existing Bridge As-Builts Appendix D – Site Utility Drawings Appendix E – Fort Hood NEC T-IDG requirements Appendix F – I3A Design Requirements Appendix G – Not Used Appendix H – CADD & HEC-RAS Files Appendix I – Nationwide Permit 14 Appendix J – Not Used Appendix K – Fort Hood Installation Design Guide 2014

PART 1: GENERAL

1.1 Scope

This section encompasses the requirements for the Contractor’s design and construction of a new bridge along Turkey Run Road across Clear Creek, new utilities, and demolition of existing structures and utilities. The design shall include the: establishment and maintenance of the stormwater pollution prevention plan, signage, striping, traffic control and the removal of the existing concrete low water crossing (LWC) roadway and elliptical corrugated metal pipes (CMPs). Included in this section are referenced standards and publications, design and construction criteria, and submittals.

For specific structural requirements related to the new bridge structure, see Part 2. For specific telecommunications requirements, see Part 3.

1.2 Options

Option 1 – All work required for clearing of trees and bushes.

Option 2 – All work required to widen tactical roadway to 24’ & provide 1’ of freeboard.

Option 3 – All work required for bridge lighting conduit system.

W9126G20R0020 0004

Turkey Run Road Bridge over Clear Creek Fort Hood (FY20)

Section 01 10 00 Page 2

Option 4 – All work required for anti-graffiti paint.

Option 5 – All work required for the demolition of existing low water crossing and related infrastructure.

1.3 References

The design, construction, inspection and demolition of structures shall be in accordance with (IAW) the following listed standards, unless otherwise stipulated herein. The contractor shall utilize the Fort Hood Installation Design Guide 2014 (Appendix K) for guidance. If there is conflict between standards, the more stringent requirement shall govern. Any standards specifically cited in this section shall have precedence over others. It is the Contractor’s responsibility to obtain clarification from the Contracting Officer of any unresolved ambiguity in standards before proceeding with design or construction.

• TxDOT: Standard Specification for Construction and Maintenance of Highways, Streets, and Bridges (November 2014)

• TxDOT: Bridge Design Manual – LRFD (July 2018)

• TxDOT: Roadway Design Manual (April 2018)

• TxDOT: Bridge Railing Manual (September 2019)

• TxDOT: Geotechnical Manual (March 2018)

• TxDOT: Highway Illumination Manual (January 2018)

• AASHTO: LRFD Bridge Design Specifications (8th Edition, September 2017)

• AASHTO: A Policy on Geometric Design of Highways and Streets 7th

Edition 2018

• USACE: Lateral Load Distribution Factors for Military Vehicles on

Multi-Girder Bridges (July 2002 – ERDC/GSL TR-02-11)

• U.S. Army: TM 3-34.22 (October 2013)

• AASHTO: The Manual for Bridge Evaluation (3rd edition, 2018)

• SHSD: Standard Highway Sign Designs – (Revision 1 –October, 2014)

• I3A: Installation Information Infrastructure Architecture (February

2010, Chapter 3)

• Fort Hood T-IDG: Telecommunications – Installation Design Guide

(January 2017)

• Unified Facilities Criteria: UFC 3-310-08 Non-Expeditionary Bridge

Inspection, Maintenance and Repair (17 July 2018)

• UFC 3-201-01 Civil Engineering

• U.S. Code of Federal Regulations: 23 CFR 650

1.4 EXISTING CONDITIONS

A project location map of the existing concrete low water crossing across Clear Creek on Turkey Run Road is provided in Appendix B. The existing conditions at the Clear Creek Low-water crossing on Turkey Run Road consists of an 8” thick

Turkey Run Road Bridge over Clear Creek Fort Hood (FY20)

Section 01 10 00 Page 3 concrete paved low water crossing LWC with 4 elliptical corrugated steel culverts 12’-10” x 8’-4” 83’-2” long. The lower portion of culverts are partially filled with rock & gravel. The concrete paved portion of the existing LWC consists of a 2 lane 26’ wide asphalt paved vehicle access and a 21’ tactical vehicle or tank trail.

The sides of the LWC are provided with 1:1 sloping concrete embankments from the concrete pavement down to and around the Corrugated Metal Pipes CMP ends. Appendix C contains as-builts of the existing low water crossing. The approaching vehicle roadways, Turkey Run Road on either side are 2 lane 24’ wide asphalt paved roadways with 10’ wide gravel surface shoulders. The current posted speed on Turkey Run road is 45 miles per hour. The tank trails consists of approximately 26’ wide stabilized compacted earth surface roadways.

A chain-link security fence is located on the north side of Turkey Run Road that will need to be relocated farther north to construct the new road and bridge.

Overhead communication lines are mounted on utility poles that are routed parallel to the north side of Turkey Run Road. A section of these overhead lines lies in the path of the new bridge and roadway. The government furnished topo survey is provided in Appendix B. A microstation CADD file of the topo survey is provided as well.

A large number of trees existing along each side of Turkey Run Road will need to be cleared and grubbed for construction of the new road and bridge. Under the base bid of the solicitation, trees will be cut and cleared prior to award of this solicitation. The boundary of trees cleared prior to the award of the solicitation will be as shown on drawings C103 and C104 in Attachment B. The contractor will be responsible to grub remaining stumps and vegetation necessary to construct the new roads and bridge. Under Option 1 of the solicitation the contractor shall clear the existing trees and vegetation as shown on sheets CS-103 and CS104 of Appendix B. Tree clearing under option 1 shall begin soon after the notice to proceed and be complete prior to March 15. Any additional tree trimming/removal required between the dates of 15 March and 15 August to construct the new roads and bridge shall be performed by the contractor within the requirements of the Migratory Bird Treaty Act.

All contractors who will be removing trees or vegetation on site must comply with the Migratory Bird Treaty Act MBTA. Contractors must take the MBTA course (1 Hour course - free of charge),offered in-person by DPW Natural Resources staff, before 15 March, if any vegetation removal will occur between 15 March and 15 August. Any contractor not educated by that time shall not work cutting trees. DPW Natural Resources biologists will conduct site visits during the tree trimming/removal process to ensure compliance."

1.5 Phasing of Work

The contractor shall close down access to the asphalt paved lanes of Turkey Run Road and the construction area including the existing low water crossing and provide traffic control to effectively redirect traffic around the construction limits.

The contractor shall maintain and provide tactical military vehicle and emergency

Turkey Run Road Bridge over Clear Creek Fort Hood (FY20)

Section 01 10 00 Page 4 vehicle access through the Clear Creek crossing at all times during construction of the new roads and bridge. <AM003> The Detour route around the construction area will be to close Turkey Run Road at Clarke Road on the west and Munitions Road on the east utilizing Clear Creek Road on the east and Tank Destroyer Blvd to the south then back to Clarke Road on the west as the detour route. See G104 of Appendix B for a proposed detour route.

</AM003> The contractor shall submit for approval and maintain a construction detour plan for all phases of the construction. Provide temporary roadways as necessary. All tree clearing and grubbing shall be as mentioned in paragraph 1.4 above. The Contractor shall coordinate with the Fort Hood NEC, via the COR, to schedule any and all disruptions in the telecommunications service.

1.6 D/B CONTRACTOR TxDOT DESIGN REQUIREMENTS

1.6.1 The D/B contractor shall use TxDOT design criteria within this RFP

1.6.2 The roadway horizontal and vertical geometry shall be based on the design speed of 45 miles per hour.

1.6.3 Traffic control, signage, and striping shall be based on the Texas MUTCD and the SHSD. The contractor shall provide Military Load Classification signage on each end of the bridge per the requirements of Technical Manual 3-34-22.

1.6.4 Permanent Erosion Control to stabilized disturbed areas and prevent erosion shall be IAW the TxDOT Landscape and Aesthetics Design Manual.

1.6.5 Bridge conduit and spacing shall be IAW the TxDOT ITS

requirements, found at the location below http://www.dot.state.tx.us/insdtdot/orgchart/cmd/cserve/standard/toc.

htm

1.6.6 OPTION 3: Bridge light pole locations shall be IAW the TxDOT Bridge Lighting Details, found at the location below http://www.dot.state.tx.us/insdtdot/orgchart/cmd/cserve/standar d/bridge-e.htm.

1.6.7 OPTION 3: Bridge lighting conduit system shall be IAW

Dominion Energy Streetlight requirements and the TxDOT Highway Illumination Manual. Coordinate with the Fort Hood Privatized Utilities COR (Fort Hood COR) for the Dominion Energy requirements. The TxDOT illumination manual can be found at the location below http://onlinemanuals.txdot.gov/txdotmanuals/hwi/index.htm

1.6.8 Bridge, roadway, and site specifications shall be TxDOT format, with the exception of measurement and payment provisions which are governed by this RFP.

W9126G20R0020 0004 http://www.dot.state.tx.us/insdtdot/orgchart/cmd/cserve/standard/toc.htm http://www.dot.state.tx.us/insdtdot/orgchart/cmd/cserve/standard/toc.htm http://www.dot.state.tx.us/insdtdot/orgchart/cmd/cserve/standard/bridge-e.htm http://www.dot.state.tx.us/insdtdot/orgchart/cmd/cserve/standard/bridge-e.htm http://onlinemanuals.txdot.gov/txdotmanuals/hwi/index.htm

Turkey Run Road Bridge over Clear Creek Fort Hood (FY20)

Section 01 10 00 Page 5

1.7 D/B CONTRACTOR USACE DESIGN REQUIREMENTS

1.7.1 The D/B contractor shall comply with USACE geotechnical and paving parameters in Appendix A.

1.7.2 USACE CADD files and HEC-RAS model have been provided within

Appendix H for bidding purposes.

1.7.3 The road section for the new Turkey Run Road roadway and bridge shall be a 24 foot wide 2 lane paved roadway with 8 foot gravel surface shoulders. In the base bid of the solicitation, the new tactical vehicle roadway and bridge shall provide a 21 foot wide stabilized road section.

Option 2: The new tactical vehicle roadway and bridge will provide for a 24 foot wide stabilized road section. See Appendix b drawings C501 and C501A.

1.7.4 The D/B Contractor shall use the following methods and models for the hydrologic and hydraulic analysis required for the final design of the proposed bridge, embankments and channel modifications that may be required. The models used for the preliminary estimates will be provided to the contractor by the USACE.

1.7.5 The D/B Contractor shall utilize the November 2015 HEC-HMS watershed runoff modeling developed by Freese and Nichols, Inc.

(FNI) as part of their 2016 Fort Hood Main Cantonment Master Drainage Study.

1.7.6 The D/B Contractor shall utilize May 2016 HEC-RAS backwater modeling (also) developed by FNI as part of their 2016 Fort Hood Main Cantonment Master Drainage Study. The contractor shall use these existing conditions models, provided by USACE, as the basis for the bridge design. The contractor may upgrade and/or enhance this modeling (i.e. add cross sections, etc.) as they deem prudent to either better define the hydraulic conditions or as becomes necessary to fully reflect localized impacts of the hydraulic design of the bridge. If the hydraulic modeling is being upgraded and/or enhanced by the contractor, those modeling results shall be reviewed and approved by a USACE representative before the bridge sizing and layout are finalized. Any additional hydraulic related design modifications shall be reviewed and approved by a USACE representative prior to construction.

1.7.7 The USACE shall provide the contractor with the baseline HEC-RAS models, and their associated hydrologic and hydraulic model documentation which was developed by FNI and used for the preliminary proposed project configuration and initial estimates. This model may be used as the basis for computing the water surface profiles for the 100-year and lesser flood events passing through the

Turkey Run Road Bridge over Clear Creek Fort Hood (FY20)

Section 01 10 00 Page 6 bridge structure for both the existing condition and proposed conditions.

1.7.8 In the base bid of the solicitation the minimum low chord (soffit) elevation of the proposed bridge structure must be sufficiently high to freely pass the 100-year water surface and result in an upstream water surface elevation increase of no greater than 0.25 feet relative to the existing 100-year water surface elevation and shall cause no impact to existing real property or infrastructure.

Option 2: The minimum low chord (soffit) elevation of the proposed bridge structure must be sufficiently high to freely pass the 100-year water surface with at least 1 foot of freeboard and result in an upstream water surface elevation increase of no greater than 0.25 feet rise in water surface elevation for the proposed condition relative to the existing condition upstream of the bridge for the 100-year flood event, considering any hydraulic effects of the encroaching bridge abutments and the bridge piers.

1.7.9 The final bridge and roadway approach designs will provide complete road access to and over the bridge during passage of a 100-year flood event, with no overtopping of the road and/or bridge surface. The bridge deck supporting piers should be configured to reasonably minimize hydraulic head losses through the structure as well as the risk of debris accumulation. Furthermore, the pier bents should be spaced such that they optimally straddle Clear Creek’s primary channel.

1.7.10 The contractor shall evaluate for possible erosive flow velocities in the project area, providing erosion protection\armoring as necessary (for this project erosive velocities are defined as 5 feet per second or greater for the 25-year storm event flow). If erosive flow velocities are observed the contractor shall design and install erosion protection\armoring based on the 25-year storm event flow. The armoring design shall, at a minimum cover: the channel 50 feet from the upstream and downstream faces of the bridge; bent\piers; and, the area under the bridge defined across the bridge opening from upstream embankment toe to downstream embankment toe. The contractor shall provide the analysis and supporting data confirming that the proposed design meets the above-stated requirements. The armoring design shall be reviewed and accepted by USACE before the layout of the bridge can be finalized.

1.7.11 The contractor shall provide the applied HEC-RAS modeling analysis and supporting data, confirming that the proposed design meets the above-stated requirements. Any revised modeling shall be reviewed and accepted by USACE prior to finalization of the bridge opening design and the overall project layout.

1.7.12 Hydraulic Submission Requirements:

Turkey Run Road Bridge over Clear Creek Fort Hood (FY20)

Section 01 10 00 Page 7

1.7.12.1 Prior to construction and\or any bridge design modifications, the contractor shall submit Design Drawings, Hydraulic Models and Hydraulic Model Documentation listed below for review and acceptance by USACE.

1.7.12.2 Upon completion of the entire project the contractor shall submit an as-built model of the accepted bridge design and constructed conditions.

1.7.13 Design Drawings and Hydraulic Models:

1.7.13.1 Schematic/conceptual plans showing a scaled plan and elevation view of the bridge, embankment, channel, and channel armoring elements. Profile view of the channel along with typical channel cross sections view. Indicate all bridge, embankment and channel elements. Select the format of the drawings provided to best illustrate compliance with the requirements of the Statement of Work.

1.7.13.2 All HEC-RAS and associated hydraulic models developed for review and approval shall be submitted in an electronic format. The applied backwater modeling submittals shall be in Version 5.0.1 (or newer) and be horizontally geo-referenced (in coordinate system - NAD 1983 (2011) State Plane Central, US FT units, vertical datum - NAVD88)

1.7.13.3 All supporting HEC-RAS hydraulic model related GIS

shapefiles, survey data, DEM, imagery and other complimentary data developed for this project shall be submitted in an ESRI file geodatabase, ArcMap 10.5 compatible. (in coordinate system - NAD 1983 (2011) State Plane Central, US FT units, vertical datum - NAVD88).

1.7.13.4 If erosive flow velocities are observed, in the project site’s area, in the HECRAS hydraulic model then submission is required of all supporting channel armoring design calculations and design plan sets for the project site covering design and associated calculations.

1.7.14 Hydraulic Model Documentation:

1.7.14.1 Provide technical documentation on the hydraulic model(s) developed for the project, as follows:

1.7.14.2 Brief narrative covering modifications to the base model, assumptions used, impact on the 100-year base flood elevation, results and comparison to the baseline existing conditions model results for all HECRAS models submitted in an electronic Word and\or PDF format.

Turkey Run Road Bridge over Clear Creek Fort Hood (FY20)

Section 01 10 00 Page 8

1.7.14.3 Submittal of all hydraulic models developed for the project in an electronic format. The HEC-RAS model will be documented internally in both the project and plan description windows. Documentation will cover a brief generalization of the responsible party\contact and model description.

1.7.14.4 Brief narrative covering evaluation of erosive flow velocities in and around the bridge area. If erosive velocities are observed the narrative shall include discussion on the armoring design\implementation and associated calculations.

1.7.14.5 The Erosive Velocity and Armoring documents shall be in an electronic Word and\or PDF format.

1.7.14.6 A scaled site exhibit presenting the cross sections, bridge alignment and post project conditions at the site in a PDF format.

1.7.14.7 The contractor shall provide the minimum typical roadway sections shown in Appendix B. The shoulders of the new roadway shall be paved through the Metal Beam Guard Fence approach. Metal beam guard fence shall be provided for the roadway and tank trail Approaches (with exception of where tank trail is immediately adjacent to civilian roadway where concrete barrier will be required to separate tank trail from civilian traffic with type 3 object markers at each end to separate the travel lanes from the tank trail lane. SKT Terminal ends shall be provided at all locations. Provide concrete mow strips at all Metal Beam Guard Fence system.

1.7.15 The Contractor must protect area natural resources IAW mandates and guidelines set forth by federal and state regulations. IAW the Migratory Bird Act, regional migratory birds must be protected between 15 March and 15 August. Clearing of trees must be completed under the requirements of the MBA to protect nesting habitat. The Contractor is to comply with all Section 404, Nationwide and other permit requirements and Nationwide Permit 14 (Appendix I) for working in the Waters of the U.S. The contractor will be required to coordinate with Fort Hood DPW and Fort Worth District for all permit issues. For more information on the <AM #0002> regulator regulatory </AM #0002> requirements for the Fort Worth District, please visit http://www.swf.usace.army.mil/Missions/Regulatory.aspx

1.7.16 The contractor laydown area shall be no more than 3.0 acres and as shown on sheet G100. No construction equipment or material shall remain unattended and within the 100-year floodplain. The final configuration and location of the contractor laydown area shall be http://www.swf.usace.army.mil/Missions/Regulatory.aspx

Turkey Run Road Bridge over Clear Creek Fort Hood (FY20)

Section 01 10 00 Page 9 approved by the COR.

1.7.17 The existing low water road crossing shall remain in place and open to military tactical vehicle traffic and emergency vehicles until the new bridge and approach roadways are fully constructed and able to be open to traffic.

1.7.18 Option 5: The Contractor shall demolish and remove the existing low water crossing. Removal of all material shall be off government property at the Contractors expense at a federal and state approved landfill. The Contractor shall submit demolition plans IAW the TxDOT “Standard Specifications for Construction and Maintenance of Highways, Streets, and Bridges” unless noted otherwise herein. All calculations and plans shall be in English units and stamped by a registered Professional Engineer.

The Contractor shall also include in the demolition plans a narrative indicating the stability of the partially demolished structure is maintained throughout the demolition process. Refer to Appendix C for asbuilt documents. The existing concrete low water crossing and culverts shall be removed <AM #0003>to a minimum of 2-feet below the existing channel ground line.

Square off any remaining structures and cut all reinforcement flush with the concrete surface.</AM #0003> Any voids left from removal shall be backfilled to the permanent ground line. The new channel bottom and side slopes shall match the adjacent grades of the channel upstream and downstream of the removed structure. <AM #0003>The HEC-RAS model shall reflect the conditions that will exist in the channel upon project completion, whether the low water crossing remains or is removed. </AM #0003> If Option 5 is awarded, the Contractor shall then demolish the existing low water crossing and all infrastructure related to the existing low water crossing only after the new bridge is fully constructed and is open to traffic. All costs associated with maintaining access to the existing low water crossing on both sides of the creek shall be at the Contractor’s expense.

1.7.19 There are limited temporary utilities available on the site. There is no water, natural gas or sanitary sewer at the new road and bridge location. There is an existing aerial power line and aerial fiber optic line running through this area on utility poles. There is no electrical power available in at the project site. Contractor will need to provide their own power and data source to the site. Note: The nearest construction water fill station is on Turkey Run Road just west of Clear Creek Road near Building 44015. See spec 01 35 10.00 44 for utility installation requirements and American Water and Dominion Energy requirements.

1.7.20 The D/B contractor shall comply with the following SWPPP

Turkey Run Road Bridge over Clear Creek Fort Hood (FY20)

Section 01 10 00 Page 10 requirements. The site contractor shall comply with all applicable requirements of the Fort Hood Construction Site Storm Water Inspection Program Memorandum of Instruction (MOI) and the Construction General Permit issued by the Texas Commission on Environmental Quality (TCEQ) (TPDES General Permit No.

TXR15000). If a project creates a land disturbance greater than one acre OR is part of a larger common plan of development, a Storm Water Pollution Prevention Plan (SWPPP) is required. Submit the completed SWPPP, Construction Site Notices (CSNs), and Notice of Intent (NOI) to DPW-ENV prior to the start of construction of land-disturbing activities. Projects requiring a SWPPP will not have utility locates performed until the SWPPP is submitted and approved by COR. It is the site contractor’s responsibility to develop and have an approved SWPPP by the date of the scheduled utility locate (as provided by the Dig permit office upon submitting a dig permit).

1.7.21 The D/B contractor shall ensure that their design meets the requirements as outlined by 01 57 20.00 ENVIRONMENTAL

PROTECTION, 01 57 23 TEMPORARY STORM WATER POLLUTION

CONTROL, 01 57 24.01 44 STORM WATER PREVENTION

POLLUTION PLAN (TEXAS) AND 01 57 25.00 44 SWPP PLAN

INSPECTION AND MAINTENANCE REPORT FORM. See individual specification sections for more detail. The design-build contractor shall prepare site specific plans and a detailed SWPPP that meets the Texas Discharge Elimination System (TDPES) and requirements of 01

57 24.01 44 STORMWATER PREVENTION POLLUTION PLAN

(TEXAS), including any notes to the designer.

1.7.22 Bridge embankment ends shall be concrete RIP RAP (RR8) with a maximum slope of 2 horizontal: 1 vertical. Steeper slopes shall requires retaining wall.

PART 2: STRUCTURAL REQUIREMENTS

2.1 General

The Contractor shall complete the design of all the bridge structural elements IAW the AASHTO LRFD Bridge Design Specifications and as modified by the TxDOT Bridge Design Manual – LRFD unless noted otherwise herein. All design calculations and plans shall be in English units.

The design service life of all structures shall be 75 years per AASHTO LRFD 1.2. Bridge elements shall be designed for direct exposure to salt water IAW AASHTO LRFD 5.10. The Contractor shall ensure all structural components are adequately braced and/or supported as required during construction. Upon completion of the bridge and within 90 days after beneficial occupancy, the Contractor shall perform the Initial Inventory Inspection and shall provide an engineered Load Rating Analysis IAW AASHTO procedures for HL-93 loads and Military Load Classification (MLC) 150 vehicles (ref. UFC 3-310-08, para 3-2.2.1.1, and 23 CFR 650). Load

Turkey Run Road Bridge over Clear Creek Fort Hood (FY20)

Section 01 10 00 Page 11 ratings shall be based on the latest version of the AASHTO Manual for Bridge Evaluation (MBE) and shall include State Legal- and Routine Permit Loads and MLC Class 150 for Track, Wheel, and HETS (treated as a special permit vehicle) vehicles.

2.2 Loads and Forces

The Contractor shall design the bridge structural elements IAW the AASHTO LRFD Bridge Design Specifications for HL-93 loading. In addition, the bridge shall be designed for military Class 150 loading per TM 3-34.22.

The dynamic load allowance, IM, for MLC 150 vehicles shall be 15%. For military loading, assume design vehicles are occupying all travel lanes simultaneously. For a single lane, the military vehicles shall be placed within the roadway width limits necessary to produce maximum stress for each member being analyzed. Distribution factors for single lane and multiple lanes shall be IAW USACE “Lateral Load Distribution Factors for Military Vehicles on Multi-Girder Bridges”. Substructures shall be designed for the travel lane occupancy which generates the greatest structural demand, using the load combinations listed in the AASHTO LRFD Bridge Design Specifications. Assume vehicle spacing within a lane to be 100 ft. Bridge rails shall be designed for a minimum TL-4 impact loading.

Hydraulic loads due to channel flow shall be considered in the bridge design.

Retaining walls with barrier rails mounted on the cap must be designed and constructed to resist impact loads as prescribed in the AASHTO Specifications.

2.3 Bridge Geometry

Bridge geometry shall comply with the design criteria within this document and the TxDOT Roadway Design Manual. The bridge width shall accommodate a 2-lane roadway with 12-foot-wide travel lanes and 8-foot-wide shoulders, and a tank lane with a width of 21 feet. All dimensions noted above are minimum clear widths, not inclusive of railings and barriers.

The minimum low chord elevation of the bridge girders must be above the anticipated water surface elevation of the 100-year flood. Refer to Part 1 of this Specification Section for additional USACE and TxDOT design requirements.

Option 2: The bridge width shall be as described above for the base contract, except the tank lane width will be increased to 24 feet. The bridge height will also be increased to provide an additional 1-foot freeboard allowance between the minimum low chord elevation of the bridge girders and the anticipated water surface elevation of the 100-year flood.

Option 3: Provide cast-in-place concrete brackets for light poles along

Turkey Run Road Bridge over Clear Creek Fort Hood (FY20)

Section 01 10 00 Page 12 the bridge deck edge at locations required for installation of bridge lighting conduit system. The concrete brackets shall be designed and constructed in accordance with TxDOT standards. Refer to Part 4, LIGHTING REQUIREMENTS, for additional requirements.

2.4 Inspection Access

All superstructure elements shall be made accessible for long-term inspection and shall be designed for ease of replacement.

2.5 Bridge Structural Components

2.5.1 Bridge Rails – The Contractor shall use standard railings per the TxDOT Bridge Railing Manual at the outside shoulders of the bridge, with a concrete vehicle barrier separating the tank lane from the 2-lane roadway. Outer rails shall be a TxDOT Combination-type rail, rated for both vehicle impact and pedestrian use, with no sidewalk.

All railings shall be designed for vehicle impact loads as stated in Section 2.2. Bridge rails shall be provided with slot drains. Bridge railing shall be designed for TL-4 impact loading minimum.

2.5.2 Bearings – Elastomeric bearing pads shall be used. Use 50 durometer material (3 steel laminates) for the bearing pads.

2.5.3 Bents/Abutments – Pre-cast abutment caps may be used in lieu of cast-in-place. The Contractor shall ensure seat and roadway elevations are maintained. Integral abutments are not permitted.

Cement stabilized backfill shall be used behind the abutment backwalls.

2.5.4 Beams – Spans shall be simply supported for pre-stressed concrete beams. If steel girders are used, a continuous support may be assumed.

2.5.5 Slab – Pre-cast panels may be used as forms only; the design thickness of cast-in-place concrete deck slabs shall be the full thickness necessary to resist shear and bending loads without relying upon the pre-cast panel strength. Stay-in-place metal forms are not allowed to be used. The slab shall be thickened at the ends of the span per TxDOT Standards. A ½- inch-thick minimum sacrificial wearing surface shall be provided for the bridge deck. Sealed armored joints shall be located at both ends of the structure, as well as at all expansion joints.

2.5.6 Foundation - A reinforced concrete drilled shaft foundation system is required for this bridge. The Government Geotechnical Report (GGR) provides the minimum standards and requirements for the foundation, earthwork, and pavement structures for this project. No other foundation systems shall be allowed. Additionally, the following foundation systems are specifically prohibited: Spot and/or continuous spread footings, reinforced concrete drilled and under-

Turkey Run Road Bridge over Clear Creek Fort Hood (FY20)

Section 01 10 00 Page 13 reamed piers, and auger cast piles. Alternative foundation systems beyond those specified in the GGR are not permitted. The Contractor’s final geotechnical design analysis and all aspects of the foundation design and construction shall meet or exceed the requirements presented in the GGR attached as part of this RFP document. The Contractor’s geotechnical report shall include the soil site class per AASHTO. The use of slurry construction methods shall be subject to Government approval, and if approved for use, the Contractor must provide adequate control of runoff material and be in full compliance with all federal and state environmental and ecological requirements in the Clear Creek waterway. The Contractor shall design and construct the drilled shafts to a size and depth as necessary to prevent unacceptable amounts of settlement or uplift in the structure IAW the requirements provided in this RFP.

2.5.7 Joints – Joints in asphaltic and concrete pavement shall be designed and constructed IAW TxDOT standards.

2.5.8 Surface Treatments – The Contractor shall provide a silane penetrating concrete surface treatment to the bridge deck according to TxDOT specifications.

Option 4: Provide an anti-graffiti coating for swallow nesting mitigation consisting of non-pigmented Si-Coat 530 or approved equal at the underside of the bridge, extending a minimum of 6 inches horizontally and vertically from all right angles.

2.6 Materials

In general, all materials shall comply with the TxDOT Standard Specifications. Payment methods for all TxDOT specifications are void. All TxDOT references to incidentals, payment clauses, measurement and items 1 through 9 “General Requirements and Covenants” are void.

2.6.1 Concrete – Use type II cement for all cast-in-place structures.

TxDOT Class C concrete is preferred for Abutments, Bents, Railings and Drilled Shafts. Class S concrete is preferred for slabs and Class H concrete for pre-stressed girders. Culverts and junction boxes shall be Class C concrete except for top of slab direct traffic culverts, which shall be Class S. Minimum allowable concrete strengths are as specified in item 421 of the TxDOT standard specifications.

2.6.2 Reinforcement – all reinforcing steel shall be ASTM Grade 60 unless noted otherwise.

2.6.3 Pre-stressing Steel – Pre-stressing steel for pre-stressed concrete girders shall be 7-wire steel strand conforming to TxDOT DMS-4500 “Steel Strand, Uncoated Seven-Wire Stress Relieved and Low Relaxation for Pre-stressed Concrete”. The minimum allowable diameter of the pre-stressing wire shall be 1/2”.

2.6.4 Structural Steel – Pre-stressed concrete girders are anticipated to

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Section 01 10 00 Page 14 be used for this contract; however the Contractor may submit a steel girder bridge design. The Contractor shall include the cost to clean and paint the steel structures. Steel shall conform to ASTM A709 Grade 50 or Grade HPS70W. Structural Steel for light structures shall be galvanized.

2.6.5 Fasteners – Fasteners shall conform to ASTM F3125, either Grade A325 or Grade A490.

PART 3: TELECOMMUNICATIONS REQUIREMENTS

3.1 General

Maintain the existing level of telecommunications service, throughout the construction process. Re-locate the existing outside plant (OSP) telecommunications cabling in order to accommodate the new road and vehicle bridge on Turkey Run Road, at Clear Creek. Also, provide infrastructure for future bridge lighting. All design calculations and plans shall be in English units.

3.2 Outside Plant (OSP) Cabling

The Contractor shall provide and install (provide), in kind, all required telecommunications cabling in accordance with (IAW) Ft Hood NEC Telecommunications – Installation Design Guide (T-IDG) and the Installation Information Infrastructure Architecture (I3A) requirements; see Appendices E and F, respectively, for more information.

The Contractor shall perform all splices/tie-ins IAW Fort Hood NEC T-IDG requirements. Ensure that all necessary cabling, tools, and equipment (i.e.

splice trailer) is onsite and ready for splice/tie-in activities. Per Fort Hood NEC, splices/tie-ins shall be started and completed in the same day, and shall not exceed 6-hours in duration. Immediately coordinate, in writing, with the COR all construction activities that could result in a disruption of telecommunications.

The Contractor shall test all telecomm to be used IAW Fort Hood NEC T- IDG requirements. Communicate, in writing, all construction activities that could result in a disruption of telecommunications with the Fort Hood NEC, via the CoR. Provide ductbanks IAW the I3A requirements, for OSP cabling that is routed underground or along the new bridge.

3.2.1 Temporary Telecommunication Cabling

In order to maintain the existing level of telecommunications service throughout the new bridge construction process, provide temporary OSP telecomm along the north side of Turkey Run Road, and across Clear Creek. Splice/tie-in this temporary telecomm to the existing overhead

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Section 01 10 00 Page 15

OSP telecomm. See sheet ES100 in Appendix D, Site Utility Drawings, for a conceptual plan of the estimated splice/tie-in locations.

The temporary OSP telecomm shall be routed overhead, and shall be mounted on new utility poles that will be provided by Dominion Energy.

See sheet ES100 in Appendix D, Site Utility Drawings, for a conceptual layout of the temporary OSP telecomm pathway. Coordinate with Dominion Energy, via the Fort Hood Privatized Utilities COR (Fort Hood COR), to schedule activities for providing the temporary overhead telecomm. The Fort Hood COR is responsible for coordinating with Dominion for all design and construction work in support of this project.

Refer to Specification 01 35 10.00 44 SPECIAL PROJECT PROCEDURES FOR FORT HOOD for details.

3.2.2 Permanent Telecommunications Cabling

Provide new OSP telecomm along the north side of the new Turkey Run Road and the new bridge. Splice/tie-in this permanent telecomm to the existing overhead telecomm. See sheet ES101 in Appendix D, Site Utility Drawings, for a conceptual layout of the estimated splice/tie-in locations.

The permanent OSP telecomm shall be routed through a pathway between the maintenance holes located on each side of the new bridge.

See sheet ES101 in Appendix D, Site Utility Drawings, for a conceptual layout of the pathway.

3.3 Outside Plant (OSP) Pathway

Provide and install (provide) new, 2-way ductbanks for the new OSP telecomm pathway IAW requirements from both the I3A and TxDOT. The I3A requirements are associated with the pathway equipment and materials, and can be found in Appendix F. The TxDOT requirements are associated with the pathway location alongside the road and approaching the bridge.

They can be found by visiting the websites listed in paragraph 1.6, D/B CONTRACTOR TxDOT DESIGN REQUIREMENTS

This pathway shall be routed underground and alongside the new bridge.

Also, it shall consist of: overhead transition, bridge approach, and bridge traverse. The 2-way ductbanks shall consist of 2ea, 4-inch conduits. One conduit shall have <AM #0002> 3ea, 1-inch 2ea, 3-inch, </AM #0002> mesh innerducts, and the other conduit shall be a spare with a nylon pullstring.

3.3.1 Overhead Transition

Provide a pole-mounted, conduit on the roadside utility pole, nearest the designated splice/tie-in point on each side of the new bridge. See sheet ES100 in Appendix D, Site Utility Drawings, for a conceptual layout of the splice/tie-in points. Allow sufficient space near the top of the utility pole for the overhead cabling to be pulled through the conduit without exceeding

Turkey Run Road Bridge over Clear Creek Fort Hood (FY20)

Section 01 10 00 Page 16 the cabling manufacturer’s bending radius. This conduit shall extend down the pole, then transition underground and tie into a new, underground maintenance hole. Coordinate with Dominion Energy, via the Fort Hood COR, to verify which utility pole has been designated for transitioning to an underground maintenance hole.

3.3.2 Bridge Approach

Provide a 2-way, underground ductbank between the splice/tie-in point, in the underground maintenance hole, and pullbox on each end of the bridge. See sheet ES101 in Appendix D, Site Utility Drawings, for a conceptual layout. Each pullbox shall be located on the bridge side of each abutment, and shall be mounted to the face of the bridge beam on the downstream side of the bridge, and below the bridge deck. Due to the ductbank length, additional maintenance holes might be necessary.

Positioning of this ductbank with respect to roadway, guardrail, etc. shall follow TxDOT ITS design requirements.

3.3.3 Bridge Traverse

Provide a 2-way ductbank between the pullboxes at each bridge abutment. This ductbank shall be mounted to the face of the bridge beam on the downstream side of the bridge, and below the bridge deck. See sheet ES101 in Appendix D, Site Utility Drawings, for a conceptual layout.

Due to the ductbank length, additional pullboxes might be necessary.

Although this ductbank might be oriented vertically, at no point along the bridge beam shall the ductbank, pullboxes, or mounting hardware extend below the bottom face of the bridge beam.

Ensure that all bridge conduit is braced and/or supported as required by TxDOT ITS design requirements, both during and after bridge construction. Also, provide covers for all empty pullboxes.

3.4 Grounding and Bonding

Provide grounding and bonding IAW the I3A requirements, found in Appendix F, for conduit, mounting hardware, manholes, hand holes, etc.

3.5 Materials

Except where noted otherwise, provide equipment and materials IAW Fort Hood NEC T-IDG.

3.5.1 OSP Telecomm – Cabling is estimated by NEC to be:

- 12-strand, single-mode fiber

- 100-pair, twisted copper

Coordinate with the COR to confirm all telecommunications cabling types and quantities before beginning design and construction activities.

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3.5.2 Conduit – Provide UV-resistant conduit for above ground, PVC conduit.

Provide concrete encased, DB conduit for the underground approach to each bridge abutment. Provide rigid galvanized steel (RGS) conduit for the bridge traverse. Provide conduit for the bridge lighting IAW TxDOT Highway Illumination manual.

3.5.3 Junction Boxes – For the bridge traverse, provide junction boxes IAW TxDOT Bridge and Lighting Details.

3.5.4 Pull Boxes – For the bridge traverse, provide pullboxes IAW the I3A requirements for bridges.

3.5.5 Maintenance Holes / Hand Holes – Provide maintenance holes and hand holes IAW the I3A requirements for installation in a cantonment area.

PART 4: LIGHTING REQUIREMENTS (OPTION 3)

4.1 General

Provide a conduit system to support future bridge lighting along the new Turkey Run Road Bridge over Clear Creak IAW requirements from both Dominion Energy and TxDOT. The Dominion Energy requirements are associated with the light fixtures, light poles, and connections. The TxDOT requirements are associated with the light pole bracket locations, wingwall conduit, and spacing from structural bridge features.

Due to the inherent, physical features of the bridge, whenever a conflict over the locationg of infrastructure arises between the two aforementioned requirements, the TxDOT requirement shall preside.

All dimensions, calculations, and plans shall be in English units.

4.2 Bridge Lighting Design

The bridge lighting design will be provided by Dominion Energy, so the Contractor shall coordinate with Dominion Energy, via the Fort Hood COR, to determine the location of the conduit system for the future bridge lighting. Also, the Contractor shall communicate all TxDOT infrastructure conflicts to Dominion Energy, via the Fort Hood

COR.

4.3 Conduit System

The conduit system shall include: light pole brackets, 2-way ductbank, 2-inch conduit, junction boxes, and associated mounting hardware.

Provide nylon pullstrings and caps throughout the conduit system, including for all empty conduit, junction boxes, etc. All materials and the location of the conduit and fasteners shall be IAW the requirements of the TxDOT bridge lighting details. Ensure that the

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Section 01 10 00 Page 18 conduit system is braced and/or supported as required by TxDOT ITS design requirements, both during and after bridge construction.

<AM #0004> For bidding purposes, assume a 200 foot spacing for future light poles, and the conduit system will be provided for one wingwall only. The Contractor shall coordinate with Dominion Energy, via the Fort Hood COR, to verify which wingwall, or if both wingwalls, will need this conduit system. </AM #0004> Ensure that the conduit system, especially the light pole brackets, accommodate the light poles used by Dominion Energy. Refer to Option 3, under Part 2.3 Bridge Geometry, for additional requirements for the light pole brackets.

4.4 Materials

Except where noted otherwise, provide materials IAW the TxDOT Standard Bridge Lighting Details and the TxDOT Highway Illumination Manual.

https://ftp.dot.state.tx.us/pub/txdot-info/cmd/cserve/standard/bridge/blstde01.pdf

PART 5: DEMOLITION OF EXISTING STRUCTURES

5.1 General

Option 5: the existing low-water crossing at Clear Creek and Turkey Run Road will be removed by the Contractor upon completion of the new bridge and approaches. The Contractor shall submit demolition plans IAW the TxDOT Standard Specifications for Construction and Maintenance of Highways, Streets, and Bridges unless noted otherwise herein. All calculations and plans shall be in English units.

5.2 Existing Culverts and Aprons

Option 5: the existing culverts and reinforced concrete aprons shall be removed to at least 2 feet below the permanent ground line. Square off remaining structures and cut reinforcement flush with the surface of the concrete. Any voids left from removal shall be backfilled to the permanent ground line.

5.3 Existing Overhead Cabling

Coordinate with Dominion Energy, via the Fort Hood COR, to develop a schedule for construction activities associated with removal of the existing overhead OSP telecomm.

After being informed, in writing, by the COR that the overhead temporary OSP telecomm is fully functional, remove and dispose of the existing overhead OSP telecomm from the existing utility poles alongside the low water crossing that have been designated by Dominion Energy to be removed in order to make room for the new bridge. See sheet ED100 in

W9126G20R0020 0004 https://ftp.dot.state.tx.us/pub/txdot-info/cmd/cserve/standard/bridge/blstde01.pdf https://ftp.dot.state.tx.us/pub/txdot-info/cmd/cserve/standard/bridge/blstde01.pdf

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Section 01 10 00 Page 19

Appendix D, Site Utility Drawings, for a conceptual layout.

After being informed, in writing, by the COR that the underground, permanent telecomm is fully functional, remove and dispose of the overhead, temporary OSP telecomm from the new utility poles. See sheet ED101 in Appendix D, Site Utility Drawings, for a conceptual layout.

Coordinate these activities with Dominion Energy, via the Fort Hood COR.

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