Attachment_1_-_SOW_03-14-2024.pdf

Horse Camp and Englewood Bridge Replacements Statement of Work Page 1 of 12

HORSE CAMP AND ENGLEWOOD BRIDGE REPLACEMENTS

STATEMENT OF WORK

PART 1: GENERAL

1.1 SUMMARY

A. There are two bridge locations under the scope of this contract.

Horse Camp Bridge Site, near Sturgis, South Dakota. This bridge will be replaced. See attached bridge inspection reports and project maps for more information, including location and detailed description of Horse Camp Bridge.

Englewood Bridge Site, located near Lead, South Dakota. This site is also referred to as Whitewood Creek Bridge as well. The original bridge to be replaced at this site is called Englewood Bridge and will be referred to herein as the original Englewood Bridge. See attached bridge inspection reports for more information, including location and detailed description of original Englewood Bridge. At the Englewood bridge site, there is also a portable bridge adjacent to the original bridge. This portable bridge is still in use since the original bridge was closed.

This portable bridge will be moved at the end of the project. Work regarding the portable bridge and the embankments will be detailed below. See attached bridge inspection reports and project maps for more information, including location and detailed description of portable Englewood Bridge.

B. Description of Work:

Applies to both Horse Camp and Englewood unless stated otherwise: Furnishing labor, equipment, supplies, and materials to design and construct abutments, riprap abutment protection, and roadways and to install an appropriately designed steel bridge, designed in accordance with AASHTO “LRFD Bridge Design Specifications.” Bridge construction shall follow the FHWA “Standard Specifications for Construction of Roads and Bridges on Federal Highway Projects (FP‐14).” All design facets of the project shall be designed, reviewed, and stamped by a Professional Engineer registered in the State of South Dakota. The bridge shall be prefabricated as supplied by the original manufacturer and be warranted by the manufacturer’s standard warranty. The bridge shall have a minimum 16‐foot‐wide rail‐to‐rail deck width complete with traffic railing and edge dams. The length of the bridge shall be a minimum of 30 feet and validated in the contractor’s design.

See Sequencing and Scheduling Section 1.9 for requirements of maintaining public access and allowable closures.

Contractor is responsible for performing a geotechnical investigation and performing a hydraulic analysis.

Contractor is responsible for removal of the existing Horse Camp bridge and transporting and off‐ loading it at the US Forest Service Work Center approximately two miles south of Spearfish, SD on Tinton Road. Location Coordinates: 44D 28M 21S North Latitude, 103D 54M 2S West Longitude.

Contractor is responsible for removal of the existing original Englewood bridge, which will become the property of the Contractor. Contractor is responsible for transporting and off‐

Statement of Work Page 2 of 13 loading the portable Englewood bridge at the US Forest Service Work Center approximately two miles south of Spearfish, SD on Tinton Road. Location Coordinates: 44D 28M 21S North Latitude, 103D 54M 2S West Longitude.

Contractor is responsible for all permits required for transportation and hauling bridges and bridge materials. Provide the Contracting Officers Representative (COR) 7 working days’ notice prior to scheduling delivery to the US Forest Service Work Center so that delivery and access can be coordinated.

C. Location: Work location is shown in the attached inspection reports.

D. Government furnished documentation: 1) Bridge inspection reports for each bridge are attached. 2) 2011 Contract drawings for installation of the temporary USFS Bridge at Englewood Bridge location.

1.2 REFERENCES

A. Referenced Specifications/Standards with Abbreviations and/or Acronyms: Wherever the following acronyms are used in these specifications or on the drawings, they are to be construed the same as the respective expressions represented. The Contractor is responsible for obtaining copies of FP‐14 and LRFD.

FP‐14 Standard Specifications for Construction of Roads and Bridges on Federal

Highway Projects, 2014 (FHWA) LRFD Load and Resistance Factor Design (LRFD) Bridge Design Specifications, 6th

Edition, 2012 with current interim revisions (AASHTO)

1.3 DEFINITIONS

A. Approvals: Approval of the submittals is an indication that the Contractor's submittals have been reviewed and that there are no objections, except as noted. Approval of deviations shall apply only to those deviations or omissions from the requirements of the drawings and specifications brought to the Contracting Officer's attention in writing. After approval of an item, submit a substitute for approval when the approved item cannot be purchased or delivered in time to avoid delay in completion of the project.

B. Acronyms: The following is a list of acronyms with their definition that are referenced in this project:

AASHTO American Association of State Highway and Transportation Officials BLM Bureau of Land Management CO Contracting Officer FHWA Federal Highway Administration HEC‐RAS Hydraulic Engineering Center, River Analysis System SCR Special Contract Requirements USACE US Army Corp of Engineers LRFD Load and Resistance Factor Design FP‐14 Federal Lands Highways

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1.4 SUBMITTALS

A. Scope: Submittals include those for:

Design Phase: initial survey, geotechnical report, hydraulic report, geotechnical and structural calculations, design specifications.

Construction Phase: shop drawings, final design drawings, manufacturers' literature, as‐ built drawings, samples, and testing results.

B. Construction phase submittal requirements will be included in the construction specifications.

Allow 10 working days for review.

C. The Contractor is required to provide electronic copies of the submittals. Electronic copies shall be emailed to the designated Contracting Officer and Contracting Officer’s Representative.

D. Submittal Procedures.

1. Submittals to be in electronic form.

a. Electronic submittals: Submittals to be neatly organized in file tree structure according to specification reference. The cut sheets and product data would have titles specific to the submittal.

E. Cover Sheet: Use standard form “Submittal‐Bureau of Land Management” cover sheet which will be provided in electronic form to the Contractor.

1. Ensure that cover sheet includes the following information:

a. Submittal Number. Note whether the submittal is an original submittal or re‐ submittal.

b. Contract Number and project name.

c. Specification section number and title, paragraph, and complete description of item being submitted. Be specific and clearly identify what is being submitted. When appropriate, reference a specific sheet and detail of the Drawings. Note multiple items individually.

d. Signature and date.

e. Name, address and telephone number of individual to contact for further information, if other than Contractor.

2. Submitted Information:

a. Link submittal to cover sheet by contract number, project name, and submittal number. Stamp is recommended but may be hand‐written on each copy; ensure submittal stamp includes project name and contract number and blank space in which to write submittal number. Stamp or write this information on all copies.

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b. Each item shall clearly note the manufacturer's name and address, trade name, product, lot, style, color, catalog designation or model number, and locations of use.

F. Operations and Maintenance (O&M) Manual: Contractor shall submit three (3) hardcopies of a comprehensive operations and maintenance manual for review at least 15 days prior to final inspection. Manual shall include cut sheets that list the manufacturer, make and model of unique materials and products used for the construction project. Government may request additional material related to the project to be included in the operations manual. Government will review O&M and note any required changes. Submit revisions, if required, within two weeks. Submit final electronic copy to CO and COR.

1.5 CERTIFICATES OF CONFORMANCE

A. Requirements: The Contracting Officer may permit use, prior to sampling and testing, of materials when accompanied by Certificates of Conformance. Materials used on the basis of a Certificate of Conformance may be sampled and tested. Installation of materials on the basis of Certificates of Conformance shall not relieve the Contractor of responsibility for incorporating materials which conform to the requirements the drawings and specifications. Material not conforming to those requirements will be subject to rejection, whether in place or not.

B. Format: The Certificate of Conformance provided by the supplier shall:

1. State that the named product conforms to the Contract requirements.

2. Either be accompanied with a certified copy of the test results, or certify that such test results are on file with the manufacturer and will be furnished to the Contracting Officer Representative upon request.

3. Provide the name and address of the manufacturer, the testing agency, and the date of tests.

4. Set forth the means of identification, which will permit field determination of the product delivered as being the product covered by the certification.

1.6 QUALITY ASSURANCE

A. Codes and Standards: The design shall comply with LRFD. The construction shall comply with Federal Highways Standard Specifications, FP‐14 and any Special Contract Requirements (SCR’s) developed for the project. This Contract incorporates materials, applications, and tests by reference, with the same force and effect as when they were given in full text.

B. Conflict: Where a conflict occurs between reference documents and project specifications, the project specifications shall govern.

C. Measurements: Where approved manufacturer's diagrams and shop drawings give specific measurements or rough‐in dimensions for equipment, these dimensions shall take precedence over dimensions indicated on the drawings.

1.7 DELIVERY, STORAGE, AND HANDLING

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A. Delivery: Protect products incorporated into the work from damage while in transit to the site.

Products must be delivered in original unopened containers with manufacturer's name, brand designation, and contents legibly indicated.

B. Storage: Provide temporary storage facilities for products. Storage shall comply with the manufacturer's instructions. The storage area shall permit access for inspection and handling.

While stored on site, prior to installation, prefabricated steel bridge shall be elevated off the ground using wooden spacer blocks.

C. Handling: Load and unload products protecting them from damage.

1.8 PROJECT/SITE CONDITIONS

A. Access to the Work: Both project sites are accessible via paved and graveled roads continuously open to the public, subject to adverse weather conditions.

1.9 SEQUENCING AND SCHEDULING

A. Work Schedule: The schedule shall be submitted at the pre‐work conference. Submit an updated work schedule when schedule changes have been noted. In addition, when requested by the government, submit an updated schedule within 3 calendar days. As a minimum, the estimated start and completion dates shall be shown in the estimate as well as other major activities that are pertinent to the work as provided by this SOW.

B. Englewood Site: Schedule shall include maximum use by public of portable bridge until new permanent bridge is open. Moving portable bridge and repairing streamside embankments at that location shall occur after new bridge is open to public. Project schedule for Englewood Bridge site shall show a completion date no later than 210 calendar days after issuance of the Notice to Proceed. (NTP)

C. Horse Camp Site: Schedule shall include maximum use by public of existing bridge until the new bridge is ready for installation. The Horse Camp Site takes reservations from the public for use.

In order to minimize impacts to public use of this site, removal of existing bridge and installation of new bridge shall be accomplished in a single efficient closure timeframe. This construction closure timeframe shall be as short and concise as practicable to allow proper removal and replacement of the bridge. High use timeframes should be avoided such as the weeks preceding and following the Memorial Day Holiday (May 27, 2024) and Labor Day Holiday (September 2, 2024). Additionally, this site is adjacent to Sturgis, South Dakota and thus the week preceding, and the week of the Sturgis Motorcycle Rally (August 2‐11, 2024) should also be avoided.

Additionally changes in the planned construction schedule shall not be allowed within 30 days of the planned start of onsite construction work without approval from the government so as to minimize disruptions to any reservations made by the public. Project schedule for Horse Camp Bridge site shall have a completion date no later than 210 calendar days after issuance of the

NTP.

D. Project Stipulations:

1. The contractor will notify the Bureau of Land Management (BLM) at least 2 weeks before onsite construction begins in order to coordinate for the BLM staff to be available to be on the ground during project construction.

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2. The bridge designer is required to obtain and adhere to all necessary permits for working in waters of the United States.

3. The contractor will indemnify the United States against any liability for damage to life or property arising from the occupancy or use of public lands under this project proposal.

4. Disturbance of improvements such as fences, roads, watering facilities, etc., encountered during the construction will be kept to an absolute minimum. The contractor is required to immediately restore any damaged improvements to at least their former state.

5. The installation of bridges will only be authorized by the BLM during dry or frozen conditions.

6. Maintain stream channels so that it remains fish and aquatic species passable.

7. Maintain the stream channel so that is equal to the bank full width of the adjacent upstream and downstream reaches.

8. Maintain the structural integrity of the shoreline (in‐water slope) to help prevent shoreline erosion and scour.

9. Final reseeding and re‐vegetation of the project areas will be the responsibility of the BLM.

10. Whitewood creek is designated by the state of South Dakota as cold‐water fish life propagating stream. No instream heavy equipment uses or other surface disturbing activities that may mobilize and/or input sediment into the Whitewood Creek during fish spawning, incubation, and emergence periods from October 15 through April 1. Alkali creek is intermittent and not likely to be fish bearing.

11. Ground disturbing activities would be avoided during the peak migratory bird season from April 15 to July 15. Notify the BLM if project schedule necessitates work during this period for potential mitigation options. No guarantee of work during this season should be assumed. (It may be possible for migratory bird nesting surveys to determine that no nesting sites are present in the construction area. These surveys must be completed by the BLM wildlife biologist 7‐days prior to work the starting. Vegetation removal prior to nesting dates may also be considered adequate mitigation subject to BLM discretion)

12. Any tree removal will need to be completed by BLM personnel during the endangered northern long‐eared bat and proposed endangered tricolored bat hibernation season between October 1 to March 31. BLM has attempted to anticipate the required tree removal for the work areas and has cleared the trees. Any additional tree removal needed to complete the work shall follow these requirements.

13. Bridge removal would be completed during the hibernation season for bats between October 1 to March 31. If bridge removal is necessary outside of the hibernation season dates, provide a minimum of 2 weeks notice to the BLM prior to Bridge Removal activities.

Outside of the bat hibernation seasons, bat surveys must be completed by the BLM wildlife biologist to assure that northern long‐eared bats and tricolored bats are not roosting under the bridge at the time of project implementation or bats can be excluded from the bridge (using tarps with bat escape tunnels) within 7‐days of the bridge being removed. BLM will be responsible for completing the surveys or tarping the bridges as needed with proper notice and coordination from the contractor.

14. Englewood Road will be allowed for transporting equipment and materials during dry or frozen conditions to the Whitewood creek project. The Horse Camp bridge project will use Horse Soldier Road as the main access point.

15. Any cultural and/or paleontological resource (historic or prehistoric site or object) discovered during the project on public or federal land will immediately be brought to the

Statement of Work Page 7 of 13 attention of the Contracting Officer Representative (COR). The contractor will suspend all operations in the immediate area of such discovery until written authorization to proceed is issued by the CO.

16. All construction equipment and vehicles must be washed prior to being brought on site to help prevent the spread of noxious weeds. Cleaning shall consist of the removal of all dirt, grease, debris, and materials that may harbor noxious weeds and their seeds. Cleaning shall occur off public lands.

17. All equipment (heavy equipment, waders, etc.) that have been used in waterbodies outside the Whitewood Creek drainage that will be used for any instream activities would adhere to Clean‐Drain‐Dry methods to prevent the spread of aquatic invasive species, as outlined on the following webpage: https://fwp.mt.gov/conservation/aquatic‐invasive‐species/what‐ you‐can‐do.

18. All equipment (heavy equipment, waders, etc.) that have been used in waterbodies outside the Alkali Creek drainage that will be used for any instream activities would adhere to Clean‐ Drain‐Dry methods to prevent the spread of aquatic invasive species, as outlined on the following webpage: https://fwp.mt.gov/conservation/aquatic‐invasive‐species/what‐you‐ can‐do.

19. If fill material is needed at the project site, the BLM must be notified where the fill material is coming from prior to it being brought on site.

20. The contractor will take all necessary measures to protect the health and safety of all persons involved in the project and will immediately alleviate any health or safety hazards.

21. The project will be completed during adequate weather conditions as to not disturb additional resources.

PART 2: PRODUCTS

(There are no applicable requirements.)

PART 3: EXECUTION

3.1 PROJECT MEETINGS

A. Pre‐Work Conferences for both design and construction phases:

1. A pre‐work conference will be held prior to the start of work. The Contractor will be notified in advance of meeting time, date, and place. The purpose will be to review required work, project drawings and specifications, construction schedules, payroll and payments, and administrative provisions of the Contract.

2. The Contractor, subcontractors, and the persons responsible for coordination of the work shall be present at the meeting.

3. Be prepared to summarize and explain procedures planned for the project and present the submittals requested in the specifications.

B. Progress Meetings:

1. To be held at the project site, or as determined by the Contracting Officer.

2. May be called by either the Contracting Officer, Contracting Officer Representative, or the

Contractor. Request shall state who should attend and include an agenda.

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C. Final Inspection:

1. To be held at the project site, or as determined by the COR.

2. Notify the Contracting Officer and COR in writing at least 5 working days before the completion date so the Government can schedule final inspection.

3. The superintendent shall be present during this inspection.

3.2 SURVEYS

A. Requirements:

Site surveys for the design will be obtained by the Contractor. Minimum of two permanent control points shall be set at each site during the survey. Survey monuments or benchmarks disturbed or removed during construction shall be reset by the Contractor at the Contractor's expense.

Hydraulic survey shall be done as detailed below under Hydraulic Analysis.

B. Submittal: The Contractor is required to submit an AutoCAD Civil3D.dwg file of the survey to the

Government for approval or rejection.

3.3 GEOTECHNICAL INVESTIGATION

A. Requirements for each site: The Contractor is required to perform a geotechnical investigation of the bridge site. One borehole shall be drilled at each of the abutment locations, to a depth of 50 ft. below grade or refusal. At refusal, the Contractor shall drill a 10 ft. core of the rock material to verify that the rock is bedrock and not a boulder. The Contractor shall also dig one test pit at one of the abutments to a depth of at least 8 ft. The Contractor shall backfill test pits after completion. The Contractor shall make recorded observations of the soil type and characteristics during digging. Samples of the drilling and test pit shall be taken, and the Contractor shall develop a testing plan and conduct testing. The Contractor shall also take samples of the channel bed material in order to determine D50 grain size that will be used in the scour analysis.

B. Submittal: The Contractor shall develop a geotechnical investigation report based on the drilling observation and testing. The report shall make recommendations on the foundation types for Englewood Bridge and Horse Camp Bridge.

3.4 HYDRAULIC ANALYSIS

A. Requirements: The Contractor is required to design each bridge so that the bridge can pass a

100‐year flood with 2 ft. of freeboard below the bottom of the girders or the low chord shall be at the 500 year flood elevation whichever lower. Contractor shall consult with BLM after the minimum girder elevation is determined before proceeding. The Contractor shall develop a Hydraulic model using industry accepted hydraulic software that shows the 100 year and 500‐ year flood elevations with the proposed structure in place.

The bridge design shall withstand the effects of scour without failing for the worst conditions resulting from floods equal to or less than the 100‐year flood frequency. A comprehensive scour

Statement of Work Page 9 of 13 analysis following the requirements detailed in FHWA HEC‐18 shall be performed using industry‐ accepted 2D modeling software with a Scour Design Flood equal to the 200‐yr flood event and Scour Design Check Flood equal to the 500‐yr event.

B. Submittal: The Contractor is required to submit a Hydraulic Report to the Government for approval. The Hydraulic Report shall include:

1. Details on how the hydrologic flood events were determined

2. Details on the model parameters that were used in the hydraulic modeling

3. Discussion of the hydraulic analysis results

4. Details on how the scour analysis model was created

5. Discussion of scour analysis with recommendations on foundation design type and depth

3.5 BRIDGE DESIGN

A. Foundation: The Contractor shall design the foundation and abutments based on the recommendations of the geotechnical report and the hydraulic report. The foundation design shall follow LRFD. Any concrete utilized in the foundation or abutments shall be 4000 psi or greater compressive strength.

B. Plans: The Contractor shall develop design plans. The Contractor shall submit the design plans to the Government at the 60% design, 95% design, and 100% design stages. The Contractor shall acquire all necessary permits for this project (USACE 404, 402 NPDES Permits, etc.). Final plans shall be stamped by a registered Professional Engineer in the State of South Dakota. The designs plans shall, at a minimum, include the following:

1. Existing Site Plan

2. Proposed Site Plan

3. Stream side and watershed protection, including repair of embankments and any road rehabilitation as required to rehabilitate the Englewood portable bridge site

4. Bridge Plan and Elevation view showing 100‐ and 500‐year water surface elevation

5. Foundation details

6. Deck joint details

7. Road typicals/details as needed for bridge approach transitions

C. Specifications: The bridge shall be constructed in accordance with FP‐14. The Contractor shall develop a Special Contracting Requirements (SCR) document in accordance with FP‐14 that references specific FP‐14 sections that need to be modified. SCR’s developed for this project override FP‐14 standard specifications per Part 1.6.B.

D. Superstructure: The superstructure shall be a pre‐engineered, shop assembled, modular, clear span, steel bridge superstructure. The superstructure shall be designed and fabricated by a company regularly engaged in the manufacture of pre‐engineered bridges and currently certified by the American Institute of Steel Construction (AISC) in accordance with LRFD. The fabricator shall be certified to have the personnel, organization, experience, capability, and commitment to produce fabricated structural steel for the category "Simple Steel Bridges" as set forth in the AISC Quality Certification Program. Quality control shall be in accordance with procedures outlined for AISC Certification. The superstructure shall be designed in accordance

Statement of Work Page 10 of 13 with LRFD. The superstructure shall be designed by or under the direct supervision of a registered Professional Engineer experienced in the design of such work. Superstructure plans and calculations shall be stamped by a registered Professional Engineer in the State of South Dakota. The superstructure shall meet the following requirements:

1. Structure Type. The structure shall be a simple beam type of bridge with four steel girders supporting the deck.

2. Live Load. The design live load shall be HL93 with dynamic load allowance. The deflection for service live load plus impact shall not exceed 1/800 of the span.

3. Structural Steel. The superstructure shall be fabricated from high‐strength low‐alloy structural steel conforming to AASHTO M‐270 (ASTM A 709), Grade 50W (self‐weathering steel).

4. Decking. The steel bridge decking shall be fabricated from galvanized, roll‐formed, corrugated steel and shall be placed perpendicular to the direction of traffic. If the superstructure is furnished in two pieces, the deck shall have a positive connection for splicing the deck panels of the modular bridge sections.

5. End Dams. The deck shall be furnished with end dams of sufficient height to match the top of the specified asphalt wearing surface.

6. Edge Dams. The deck shall be furnished with edge dams in the longitudinal direction along both sides of the bridge of sufficient height to match the top of the specified asphalt wearing surface.

7. Traffic Railing. Traffic railing shall meet AASHTO requirements for geometry and be designed for a minimum Test Level 2 (TL‐2) as specified by NCHRP Report 350. The railing posts shall be fabricated from high‐strength, low‐alloy structural steel conforming to AASHTO M‐270 (ASHTM A 709), Grade 50W (self‐weathering steel). The bridge railing shall be galvanized steel. Hardware for traffic railing shall be of an approved corrosion resistant material conforming to or exceeding the requirements of ASTM A307.

8. Finish. All exposed surfaces of the self‐weathering steel shall be prepared after fabrication in accordance with the Steel Structures Painting Council Surface Preparation Specification No. 6 Commercial Blast Cleaning (SSPC‐SP) to assure uniform weathering of all visible surfaces.

9. Hardware. The manufacturer shall furnish all necessary bearing plates, elastomeric bearing pads, and assembly bolts. Bearing plates for the expansion abutment shall be appropriately slotted to allow for thermal expansion.

10. Galvanizing. All galvanized material shall be hot dipped after fabrication in accordance with ASTM Standard Specification A 123. All galvanized hardware shall be hot‐dipped galvanized in accordance with ASTM Standard Specification A 153.

11. Welding. All welding shall conform to the requirements of AWS D1.5.

E. Wearing Surface: The bridge shall be designed with an asphalt wearing surface that extends at least 3 inches above the corrugated steel deck.

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F. Deck Joint: The bridge shall have an elastomeric joint seal between the concrete backwall and superstructure end dam at both abutments. The joint shall be covered with a steel plate welded to the deck that is allowed to move with thermal expansion of the bridge.

G. Road Surfacing: Contractor shall re‐surface a minimum of 100 feet of road on both sides of bridge ends to a 4” depth. Specify to match existing surfacing or similar during design.

H. Stream Banks. Contractor shall design appropriate rip rap, gabions, or similar bank stabilization as needed at each bridge location. Contractor shall regrade and protect stream bank at Englewood portable bridge location after moving portable bridge offsite.

3.6 CONSTRUCTION

A. Traffic Control Plan: Before construction commences, the Contractor shall submit a traffic control plan to the CO for approval. The Contractor is allowed to close the road at each location as discussed under section 1.9 Sequencing and Scheduling, but the Contractor is required to set up appropriate signage per Manual of Uniform Traffic Control Devices (MUTCD).

B. Erosion control plan: Before construction commences, the Contractor shall submit an erosion control plan outlining location of erosion control best management practices(BMPs) planned for the project including BMPs down grade of excavated areas.

C. Permits: The Contractor will submit a USACE 404 permit application, 402 NPDES permit application and any other additional permits required based on the Contractor’s 60% design plans. The Contractor’s design and construction shall comply with all of the requirements of the permits.

D. Health and Safety Plan: Before construction commences, the Contractor shall submit a health and safety plan to the CO for approval. The health and safety plan shall include the location of the nearest hospital and procedures to follow in case of an emergency. The Contractor is required to have a portable toilet on‐site for the duration of construction.

E. Disposal of debris: Debris shall become the property of the Contractor. Dispose of materials in a legal manner and payment of required fees is the Contractor's responsibility. Sale of material onsite is not allowed unless authorized in writing by the Government. Burning of removed materials is not permitted on the work site.

F. Sampling and Testing: The Contractor shall develop a sampling and testing plan that follows the requirements of FP‐14 or applicable SCR’s. Materials to be sampled and tested include concrete, asphalt, riprap, structural backfill, and others. The Contractor is required to submit all test results, including failed tests, to the CO.

G. As‐Built Drawings: The Contractor is required to keep a full‐sized copy of the design plans, SCR, and FP‐14 on‐site throughout the duration of the project. As the job progresses, Contractor shall continuously maintain as‐built drawings of the work. The changes shall be noted legibly in red pencil or red ink. These drawings shall be submitted to the Government prior to final

Statement of Work Page 12 of 12 inspection. Should final inspection reveal changes in the project not so noted on the as‐built drawings, Contractor shall record these changes on the as‐built drawings within 5 working days of final inspection and deliver completed as‐built drawings to the Government.

H. As‐built load rating: Contractor shall complete a final load rating of the structure taking into account any field changes to the design. This includes any changes to the dead load of the structure with wearing surface thickness and railing appurtenances. Vehicle configurations to be load rated shall include HL‐93 inventory and operating rating factors as well as rating factors for the notional rating load (NRL) and Type 3, Type 3S2, Type 3‐3, SU4, SU5, SU6, SU7, EV2, and EV3 legal trucks.

Contractor shall also submit structure model using BRASS software and any computer runs and data files used in the analysis, as well as the input files for the model. Submit a final model capable of analyzing permit vehicles for the structure. If alternative load rating software is required and/or used, provide a brief summary of the applicability over BRASS. All alternative software requires approval prior to load rating.

Load rating related submittals shall be submitted to the COR prior to request for final payment.

3.7 WARRANTY

A. Requirements: Materials and equipment furnished under this Contract shall be covered by the most favorable commercial warranties given to customers for such materials or equipment. The rights or remedies provided herein are in addition to and do not limit rights afforded to the Government by other clauses of this Contract. With respect to warranties, expressed or implied, from manufacturers or suppliers for materials or equipment furnished under the Contract the Contractor shall:

1. Obtain warranties that would be given in normal commercial practices.

2. Require warranties to be executed, in writing, for the benefit of the Government.

3. Submit warranties to the Government prior to the final inspection.

PART 4: MEASUREMENT AND PAYMENT

4.1 METHOD OF MEASUREMENT

A. Units: All items will be paid as a lump sum when the Government has accepted that all criteria have been met.

4.2 BASIS OF PAYMENT

A. Payment: Payment will be made under the following items, and contractor shall include all requirements within these pay items:

Horse Camp Bridge Site (GAOA) 1 ‐ Geotechnical Investigation 2 ‐ Hydraulic Analysis, includes survey 3 ‐ Bridge Design, Removal and Construction, includes site survey

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Englewood Bridge Site (Non-GAOA) 1 ‐ Geotechnical Investigation 2 ‐ Hydraulic Analysis, includes survey 3 ‐ Bridge Design, Removal and Construction, includes site survey

Contract Price Schedule and all attachments are listed in Section J of Solicitation 140L0624R0025.