Amendment_001_attachments_0001.pdf

CA-SDNWR-Sweetwater River Trail Repairs Solicitation 140FC324Q0023

1. Please confirm the vertical control grade is max 5%? Trail must comply with Chapter 4 of the Architectural Barriers Act (ABA), Accessible Routes requirements.

1a. Are there any exceptions to this rule? i.e. existing conditions? See response above.

2. It was mentioned on the job walk that survey marks had been left by the design team. However, no markers were found while performing the job walk. No markers are present per design team.

2a. Please clarify who will be responsible for layout of the new trail routes? The contractor will be responsible for the layout.

2b. Will the contractor be required to hire a surveyor to provide the layout? Hiring a surveyor is not required for the layout. Trail layout can be confirmed in the field with the FWS representative. However, the contractor may need to hire a surveyor to confirm the trail grades meet the required accessibility standards.

2c. If we will be hiring a surveyor please clarify the control points he will be using. Reference is provided on the title page of the design drawings, TS-01.

3. We identified a few areas where native material available may be lacking to complete the rework. Please clarify the work area. Is the max trail width 12' or 14'? Repair of existing trails will include re-grading steep segments to meet the Outdoor Standards for running slope, widening the trail tread in narrow segments to a width of 48-60 inches, improving the trail surface by blending or capping with imported native soils, and removing large rocks or other obstructions.

3a. Please confirm all vegetation can be removed within the trail work area if required to make grade? All vegetation can be cleared back from work area.

3b. Please clarify that larger rock structures can be left in place and that the trail alignment may be "field fit" to go around the rock structures. Some “field fit” for larger rock structures is permissible. Where possible removal of rock obstructions greater than an inch above trail surface is desired.

4. Please confirm no import of soil will be permitted or required? Some import may be desirable based on repairs required. This would be based on contractor assessment of specific area. It is not required for soil to be imported but there may not be sufficient soil resources on site to be used.

4a. If import is anticipated please clarify the type, gradation, and desired source?

Desired material would be decomposed granite, free of silt, clay, weed seed, and any other deleterious material. Please provide a sample if there are color choices for USFWS approval if this is a top dressing material; desire is to match existing trail color. Local sources are preferred.

5. Please confirm there will be no commercial vehicle access to the site beyond what was discussed on the job walk. There is only vehicle access at: north of Steele Canyon Creek via SDGE access road north of the parking lot to that portion of the project area, and from Millar Ranch Road via SDGE access roads. No other commercial vehicle access is available.

5a. Will a small side by side be allowed down the trail to aid in building support for the puncheon bridges? Yes, small side by side vehicle would be allowed.

6. Please confirm there will be no fencing requirements in the base bid for closing the trail ends by the general contractor. See note 2 under Contractor’s Responsibilities for temporary construction fencing on TS-01 (Project Attachments). Contractor shall provide separate cost for fencing at trail closures (see below).

6a. If fencing is desired which type and how far would you like it to extend at the trail ends. T-post and wire fencing; fence should extend across the trail to be closed off and into the existing habitat for a distance of at least 10 feet on either side.

7. It was mentioned that trail closed signage was available for the areas that are to be closed. Is the signage something you want us to install? USFWS will install signs once fencing is erected.

7a. If so please describe how you want it installed and if Fish and Wildlife will be providing the signs. See response above.

8. What determines a "rock" must be removed from a trail as opposed to burial of the rock or bedrock formation? There should not be rocks over 1” above the trail surface. If rocks cannot be removed or relocated with hand tools due to size, the trail shall be rerouted per field review with FWS.

9. Please confirm there is no water access on the site for landscape irrigation. There is no water available on site for irrigation or other project needs. Contractor would need to ask Otay Water District for nearest hydrant location and temporary meter requirements. Here's the link to the OWD forms that will need to be filled out for the temp meter.

https://lf.otaywater.gov/WebLink/Browse.aspx?id=548342&dbid=0&repo=OWD

Additional Files provided:

Sweetwater River Trail Survey (at creek crossing, CAD version available)

Existing Trail Maps by design team (pdf) https://lf.otaywater.gov/WebLink/Browse.aspx?id=548342&dbid=0&repo=OWD

San Diego National Wildlife Refuge Complex San Diego, CA

Sweetwater River Trail Renovation:

CONSTRUCTION SCOPE

U.S. FISH AND WILDLIFE SERVICE

Pacific Southwest Region

July 15, 2024

San Diego National Wildlife Refuge Sweetwater River Trail Repairs Page 2 of 7

1. GENERAL:

1.1. The United States Department of the Interior (DOI) Fish and Wildlife Service (USFWS) intends to enter a firm fixed-price contract with a single Contractor for the construction of trail repairs along the Sweetwater River Trail.

1.2. The San Diego National Wildlife Refuge is not just a place for wildlife, but a refuge for the city-dwelling neighbors who surround it. Established in 1996 and stretching over 12,465 acres from the unincorporated communities of Spring Valley, Rancho San Diego, and Jamul in San Diego County south to the eastern portion of the City of Chula Vista, the refuge is the USFWS contribution to the San Diego Multiple Species Conservation Program (MSCP), a county-wide, landscape-level habitat conservation plan to preserve habitat and species while allowing appropriate development.

Guided by ongoing biological surveys and endangered species monitoring programs, the management of this refuge also relies on its non-profit partners and cooperative agencies to ensure the goals established in its Comprehensive Conservation Plan are accomplished.

Open grasslands, cool riverine corridors, and oak woodlands are some of the habitats present, with some being actively restored following disturbance associated with human uses and wildfire. The Sweetwater River Trail, which accommodates hiking, biking, and horseback riding, extends through habitat supporting sensitive plant and animal species, including a number of federally endangered and threatened species, that the Refuge was established to protect.

2. GENERAL REQUIREMENTS:

2.1. The Contractor is responsible for providing all construction services required for the final firm fixed price (lump sum) contract amount negotiated.

2.2. The Contractor shall build the Project in compliance with applicable requirements of federal and state laws, codes, rules, regulations, ordinances, and standards, including but not limited to, those outlined below. The Contractor shall have copies available of applicable codes and regulations for ready reference.

2.3. Performance Period: 120 calendar days from NTP. If funds become available, Options shall be exercised within 30 days of when the base Task Order is awarded.

2.4. Per the Draft Environmental Assessment, no vegetation may be removed during nesting season (February 15-August 31). If vegetation must be removed during breeding season, contractor shall review each location with Project Leader prior to clearing to avoid impacts to breeding birds.

2.5. The resulting contract will be firm-fixed-price (FFP).

3. SCOPE OF WORK:

The project will include, but not be limited to, the following:

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• Review the 50% Construction Drawings, design narrative, and other documentation.

• Review site data.

• Evaluate existing conditions of the site. If necessary, prepare and submit an update a limited Topographic Survey of the Project Area to confirm horizontal and vertical control points and existing elevations.

• The contractor shall submit the erosion and sediment control plan to FWS and note the storm water BMPs in the drawings or as a written narrative, provided the area of ground disturbance is less than 1 acre.

• Secure work area.

• Construct project and conduct acceptance field inspection with FWS team, one per phase minimum.

• Construction Monitoring: Archaeological monitoring will be conducted by an archaeologist familiar with the types of archaeological resources that could be encountered within the Project area. Prior to implementation, the project area will have been subjected to a pedestrian archaeological survey which will map and create a buffer zone around areas that are determined sensitive for the presence of cultural resources.

The archaeological monitor will need to be present when ground disturbing activities that extend below or outside the prism of current disturbance occur in areas identified as sensitive.

• A Native American monitor will be selected from the Native American groups identified by the Native American Heritage Commission (NAHC) as having affiliation with the project area. The archaeological monitor and Native American monitor will be empowered to halt or redirect ground-disturbing activities away from the vicinity of a discovery until the qualified archaeologist has evaluated the discovery and determined appropriate treatment. The archaeological monitor will keep daily logs detailing the types of activities and soils observed, and any discoveries. After monitoring has been completed, the qualified archaeologist will prepare a monitoring report that details the results of monitoring. The report will be submitted to the USFWS and any Native American groups who request a copy.

DEFINITION OF CONTRACT LINE ITEMS AND DESCRIPTION OF THE WORK

3.1. BASE BID – TASK 1: Southern Trail Repairs

3.1.1. Phase 1: reroute approximately 2,000 lf of the central Western trail to avoid wetlands. No trail closures are required for this portion of the work.

3.1.2. Phase 2: repair an approximately 400 lf section of the Eastern trail and the closure of approximately 350 lf of the same trail. This will require the temporary closure of the Eastern trail.

3.1.3. Phase 3: repair of approximately 1,100 lf of trail extending from the junction of Western and Eastern trails to the Horse Bridge. This will require the temporary closure of that portion of the trail.

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3.1.4. A Kumeyaay tribal and/or an archaeological monitor shall be present for all ground disturbance activities during the project.

3.1.5. If the Puncheon Bridge option item is not awarded, then an equal mixture of native soil and ¾” gravel at 4” thick shall be placed and compacted at those locations for a distance of 24” on either side of the flowline.

3.2. BASE BID – TASK 2: Northern Trail Repairs

3.2.1. Phase 4: Repair of an approximately 500 lf section of trail near Steele Canyon Creek. This phase includes the replacement of the existing puncheon crossing at Steele Canyon Creek (see drawings, p. 18). This will require closure of that section of trail. An alternate route using a portion of Millar Ranch Road could be utilized to maintain the primary loop.

3.2.2. Phase 5: provide approximately 300 lf of new trail to avoid a low point within the utility access road. This phase also includes the repair of approximately 700 lf of the Western trail. This will require the closure of that portion of the Western trail, but the Eastern trail can be used as the primary loop during that time.

3.2.3. A Kumeyaay tribal and/or an archaeological monitor shall be present for all ground disturbance activities during the project.

3.2.4. If the Puncheon Bridge option item is not awarded, then an equal mixture of native soil and ¾” gravel at 4” thick shall be placed and compacted at those locations for a distance of 24” on either side of the flowline.

3.3. OPTION A1 – TASK 3: Western Trail Closure

3.3.1. Closure of approximately 2,000 lf of the original Western trail. No closures will be required for this phase.

3.3.2. Segments of the trails to be closed shall be ripped or disced to a depth of four inches to de-compact the trail tread and allow for natural recruitment of vegetation.

3.3.3. A seed mix for the trail areas to be closed is provided with the project design drawings. To be procured and installed by the contractor.

3.3.4. A Kumeyaay tribal and/or an archaeological monitor shall be present for all ground disturbance activities during the project.

3.4. OPTION A2 – TASK 3.1: Planting at Western Trail Closures

3.4.1. Planting shall be provided at the areas where the closed trail meets the continued use trail. Referenced the Option A/D Planting Plan.

3.4.2. Irrigation for the planting shall be provided by the contractor for a period of six months.

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3.4.3. A Kumeyaay tribal and/or an archaeological monitor shall be present for all ground disturbance activities during the project.

3.5. OPTION B - TASK 4: Additional Puncheon Bridges

3.5.1. If funding is available, the refuge would like to upgrade the trail to include several puncheon bridges marked as ‘Option B’ in the drawings. Refer to p. 17 of the drawings for a sample design.

3.5.2. If accepted, this task shall be part of Phase 1.

3.6. OPTION C1 – TASK 6: Northern Trail Closures

3.6.1. User Created Trails to be closed where shown on the Phasing Diagram.

Approximate length is 2700 lineal feet.

3.6.2. Segments of the trails to be closed shall be ripped or disced to a depth of four inches to de-compact the trail tread and allow for natural recruitment of vegetation.

3.6.3. A seed mix for the trail areas to be closed is provided with the project design drawings. To be procured and installed by the contractor.

3.6.4. A Kumeyaay tribal and/or an archaeological monitor shall be present for all ground disturbance activities during the project.

3.7. OPTION C2 – TASK 6.1: Planting at Northern Trail Closures

3.7.1. Planting shall be provided at the areas where the closed trail meets the continued use trail. Referenced the Option A/D Planting Plan.

3.7.2. Irrigation for the planting shall be provided by the contractor for a period of six months.

3.7.3. A Kumeyaay tribal and/or an archaeological monitor shall be present for all ground disturbance activities during the project.

4. DELIVERABLES

4.1. Upon award, provide proposed schedule of work and a schedule of values based on the contract line items.

4.2. Provide the following a minimum of one week prior to the Pre-Construction Meeting:

4.2.1. Letter designating Contractor’s Project Superintendent.

4.2.2. Project Schedule with Construction Activities delineated.

4.2.3. Accident Prevention Program / Safety Plan.

4.2.4. A list of sub-Contractors for this project (this item shall match initial proposal submitted at solicitation) if applicable.

4.2.5. Quality Control Plan (QCP) and Erosion and Sediment Control Plan.

4.3. Daily Reports of construction activities. A sample format is available upon request.

4.4. Weekly Progress Meetings. Progress meetings shall be held via TEAMS or Zoom virtual conferencing software. Contractor to provide meeting agendas and meeting

Sweetwater River Trail Repairs Page 6 of 7 notes. The weekly meeting will have, as a minimum, the following agenda items:

4.4.1. Approval of minutes of previous meetings

4.4.2. Submittal and RFI status

4.4.3. Review of off-site fabrication and delivery

4.4.4. Modifications

4.4.5. Work in progress and projected

4.4.6. Three-Week Look-Ahead Schedule

4.4.7. Other business relating to contracted work.

4.5. It is not anticipated that the ground disturbance will exceed 1 acre. A Storm Water Pollution Prevention Plan (SWPPP) should not be required. If ground clearance will exceed 1 acre, the contractor will be responsible for providing and submitting a

SWPPP.

4.6. Any required construction permits and related inspections. Contractor shall pay for all inspections and permit fees associated with the Work.

Unless otherwise noted, all electronic deliverables shall be in PDF format and shall not exceed 5 MB in file size. Files over 10 pages in length shall be clearly bookmarked.

5. INSPECTION AND ACCEPTANCE

At completion, each Task shall require a formal review and approval by the USFWS team.

Work shall be performed in accordance with the requirements of this SOW. Work shall be accepted when all the work is completed as described herein.

6. GOVERNMENT FURNISHED INFORMATION

The following data and materials will be provided to the Contractor:

• Repair and Renovation Project Design Report

• Project Drawings

• Area Topographical Survey

• Accessibility Standards for Federal Outdoor Developed Areas and Checklist

7. REQUESTED PROPOSAL DOCUMENTS

In addition to the cost proposal, please provide the information listed below. Submit a bookmarked pdf, 15 pages maximum (maximum page count does not include the cost proposal). The pdf file size shall not exceed 5 MB.

7.1 Cover Letter / Statement of Interest

7.2 Relevant Project Experience / Similar Projects

7.3 Resume for Project Manager and list of proposed team members including any sub-contractors

7.4 Proposed Project Schedule

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8. PROJECT LOCATION AND AVAILABILITY

The project area is accessed from the Sweetwater Trail parking lot at the intersection of Campo Road (SR 94) and Millar Ranch Road in the unincorporated community of Spring Valley in San Diego County.

Normal work hours for the San Diego NWR staff are 7:30 am to 4:00 pm, Monday through Friday, excluding Holidays. Coordinate with the Project Leader if contact outside of the normal working hours is needed.

9. CONTACTS- TBD

10. ABBREVIATIONS

COR Contracting Officer’s Representative FFP Firm Fixed Price lf lineal foot MB Mega Byte NTP Notice to Proceed NWR National Wildlife Refuge SOW Scope of Work SR State Route TBD To Be Determined

REVISION DATE BY REVISION DATE BY

SHEET 1 OF 1

TOPOGRAPHIC SURVEY, SWEETWATER RIVER TRAIL

COUNTY OF SAN DIEGO, CA

BENCHMARK

SURVEYOR'S STATEMENT

BASIS OF COORDINATES

cCopyright 2023 NASLAND Engineering. All Rights Reserved.

SAN DIEGO, CA

NOTES

03/14/2023

0 200 400 600 800100 Feet

Legend Trail_Stations

Run_Slp

0.00 - 0.50

0.51 - 1.00

1.01 - 2.00

2.01 - 3.00

3.01 - 4.00

4.01 - 5.00

5.01 - 6.00

6.01 - 8.00

8.01 - 10.00

10.01 - 12.00

12.01 - 15.00

15.01 - 17.50

17.51 - 20.00

20.01 - 25.00

25.01 - 28.00

Sweetwater River Trail Repair & Renovation Project

0 200 400 600 800100 Feet

Legend Trail_Stations

Run_Slp

0.00 - 0.50

0.51 - 1.00

1.01 - 2.00

2.01 - 3.00

3.01 - 4.00

4.01 - 5.00

5.01 - 6.00

6.01 - 8.00

8.01 - 10.00

10.01 - 12.00

12.01 - 15.00

15.01 - 17.50

17.51 - 20.00

20.01 - 25.00

25.01 - 28.00

Sweetwater River Trail Repair & Renovation Project