B08_attach_11_NHPA_Section_106.pdf

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National Park Service

U.S. Department of the Interior

Golden Gate National Recreation Area

FEIS Consistency Memorandum

To: NEPA Files

From: Superintendent

Through: Park Interdisciplinary Team

Subject: Adequacy of Previous National Environmental Policy Act Documentation

A. Project Information

Park Name: Golden Gate National Recreation Area

PEPC Project Number: 74700

Project Title: Stabilize Alcatraz Wharf

Project Leader: Jason Hagin, Historical Architect

B. Project

Background Because the Alcatraz island bedrock rises abruptly from the floor of San Francisco Bay, there is only one island location that is suited to landing a boat. Since the island was first developed by the Army in 1853, the wharf has been in its present location, at the southeast end of the island.

The 1854 stone seawall bulkhead is still visible at the northern edge of the 1939 concrete wharf that exists today, which greets every arriving vessel and more than 1.4 million annual visitors to the National Historic Landmark District. The 1939 concrete wharf has significance as the only access to the island during the penal and Indian occupation periods on the island, and is sited on older military era constructions. It was the subject of a 1.2 million dollar concessionaire funded emergency repair project in 2001, which affected repairs on roughly one-fourth of the concrete structural components of the highly used feature crucial to continued operations of the Landmark (see "Dock Repair" project as described in the Alcatraz Island Historic Preservation and Safety Construction EIS (2001 EIS)).

The effects of seawater deterioration and deferred maintenance were assessed in March of 2011 by contractors hired by the concessionaire (see PEPC 40791). A prototype column repair was performed in April 2012 to better inform costs and phasing of this project (see PEPC 39559). A dive survey and condition assessment was conducted in October of 2016 and determined that the

2001 repairs were not completed. The park gave design direction in 2017 to include voluntary seismic upgrades as part of a stabilization design for the wharf, and repairs to the timber "finger pier" on the north end of the wharf, including replacement of its historic steel gangway as options in the construction documents for the project.

Proposal The proposed work would replace the steel gangway and stabilize and seismically upgrade the concrete wharf at Alcatraz Island, located in central San Francisco Bay, California. The original wharf was built in 1854, was reinforced with steel in 1907, and replaced with concrete in 1939.

The wharf and pier repairs are proposed to mitigate deterioration and damage of the existing supporting structures, and to meet requirements for seismic stability. The existing gangway attached to the finger pier was damaged in a storm event is occasionally used to offload crew and supplies from small boats and water taxis. A detailed description of the scope of work includes the following.

Wharf Repairs And Seismic Upgrade. The proposed work includes pile repair and replacement and wharf deck repair. Up to 221 piles are proposed for replacement or repair to support the wharf structure. The pile types included for replacement include 5 16-inch diameter pre-cast concrete piles, and 10 30-inch diameter steel piles. Additional pile repair would occur on approximately 206 16-inch diameter concrete piles not slated for replacement. The 16-inch and 30-inch replacement piles would be installed using a technique where steel pile casings (hollow piles) are first installed to prevent drill spoils from entering the water, and a rotary drill is used to drive the pile into the ground with rotation, or sockets are drilled to depth. A casing is driven through the overburden layer to bedrock (approximately two to five feet below the top of the silt/ sediment layer). The casing is installed approximately 6-inches into the bedrock. An auger is then used to drill up to 15 feet into bedrock. Piles are then placed inside the casing and grouted into the socket. After the pile is placed and grouted, the casing is removed with the aid of a vibratory hammer. The installation of the 16-inch and 30-inch diameter steel casings would occur using an impact or vibratory hammer operated from the wharf deck. If a vibratory hammer is used to install the casing through the overburden, an impact hammer would likely need to be used to set the casing into the bedrock to create a seal. One casing could be installed per day and impact pile driving could occur for 20 to 30 minutes per casing. All steel casings would be installed at water depths ranging from +1 to 7.5 feet during mean lower low water (MLLW). Drilling for the installation of the 30-inch piles would occur for approximately five hours per pile, and no more than two 30-inch diameter steel piles would be placed each day. Drilling for the installation of 16-inch diameter piles, could occur for up to one hour per pile with one pile being installed per day.

Repair of the 16-inch concrete piles would involve installing a protective fiberglass jacket forming system around the existing pile. The repair work includes removing existing steel jacket shells on the piles with an oxyacetylene torch or by mechanical means, and subsequent removal of any damaged concrete using a jackhammer. Rebar would be cleaned with a wire brush and replaced if section loss due to corrosion exceeds a threshold. Replacement rebar would be doweled into existing concrete using a rotary drill and/or clamped to existing good rebar with the aid of a handheld impact driver. A fiberglass jacket would then be installed around the pile, covering the length of the pile from beam soffit to the top of competent rock, to 1 foot below mudline or to an elevation of -4 ft MLLW whichever occurs first. Substrate would be shoveled away from the piling at the mudline and then replaced once the jacket is secured. A multi-purpose marine grade epoxy grout would then be used to fill the void space inside the jacket to complete the repair. Fiberglass jacketing work would be completed by hand, using divers accessing the work area by boat.

The proposed work also includes repairs to approximately 3,700 square feet of concrete deck (slab) and 2,500 linear feet (5,000 square feet) of beam support. The repair work includes removal of any damaged concrete and supporting rebar and replacement by splicing in new rebar and setting new concrete slab. All slab and beam work will occur above water. A jackhammer will be used to remove the damaged concrete. Existing rebar will be cleaned and rebar with section loss exceeding a threshold of 50% will be removed and supplemental rebar will be added.

Rebar that is to be removed will be cut with the aid of a cutoff wheel or oxyacetylene torch.

Replacement and supplemental rebar would be doweled into existing concrete using a rotary drill and/or clamped to existing good rebar with the aid of a handheld impact driver. A jackhammer may be used during the entirety of the day and multiple hammers may be used at once.

Following removal of the damaged concrete and replacement of the damaged rebar, the concrete section will be repaired.

There are two approaches for repairing the beam and slab concrete. One approach would involve the construction and installation of form work followed by a concrete casting and the other would use shotcrete. If shotcrete is used, scaffolding and suitable sheeting would be installed under all areas where shotcrete is being placed. The sheeting would extend out far enough to capture all reasonable concrete rebound or overspray and prevent concrete from entering the water. Shotcrete may be preferable due to a lower cost of placement. The proposed work, including the pile repair and replacement, is expected to take from 22 months up to three years to complete.

The Gangway Replacement. The existing gangway consists of a steel frame with wood decking and is proposed to be removed entirely and replaced with a prefabricated steel frame and wooden deck landing brought in by barge and lifted into place using a crane. Water depth under the gangway is approximately 5 feet MLLW. Water depth at the finger pier varies from approximately 12.5 to 30 feet MLLW.

In addition to the applicable FEIS Mitigation Measures in Attachment E – the NPS will include the following new measures to avoid and/or minimize project impacts as a result of the updated scope of work:

• All in-water work shall be conducted during the in-water work window from June 1 through November 30.

• Noise mitigation systems would be used. A wood cushion block would be used during impact pile driving. Alternate hammer types to reduce underwater sound pressure would be used first (e.g., vibratory hammers) before using impact hammers where possible to minimize impacts to wildlife. If an impact hammer is used, bubble curtains shall be used to minimize sound impacts..

• A maximum of one pile casing would be installed per day. No more than 200 blows a day would occur during casing installation.

• Pile-driving shall commence with a soft start procedure (ramping up) to alert nearby wildlife, allowing them to move out of the area prior to construction activities. For impact pile driving, contractors shall be required to provide an initial set of strikes from the hammer at reduced percent energy, each strike followed by no less than a 30-second waiting period. This procedure shall be conducted a total of two times before impact pile driving begins. Where a vibratory hammer is used, contractors shall initiate sound from vibratory hammers for 15 seconds at reduced energy followed by a 1-minute waiting period. This procedure shall be repeated two additional times before full energy may be achieved.

• No debris shall be allowed to enter the water; any accidental release of debris shall be removed from the water immediately.

• Fiberglass jackets shall be installed, sealed, and extend above high tide to allow grout placement to minimize the risk of grout contacting surface waters. The two ends of the jackets shall be sealed, and air will be vented with ports. During fiberglass jacket installation, the contractor shall have a diver in place to make sure that forced grout is not being released into the Bay.

• Installation and application of epoxy, resin, or cementitious grout/fill will be conducted when predicted weather and ocean conditions allow effective control and full containment and shall remain dry until cured, in order to prevent any leaching of uncured treatment materials into coastal waters. Jackets shall be installed during low tide to the extent feasible. Work shall cease during inclement weather (large waves or heavy rain)

• Full time biological monitoring, establishment of a 500 meter “exclusion zone” for marine mammals shall be used during construction. The buffer area shall be surveyed starting 30 minutes before percussive, or loud in-water work, during this work, and continuing for 30 minutes after this work is halted. If marine mammals or special status species are observed, percussive/loud work would be halted until these animals are no longer observed within and have moved from within the buffer zone.

• ACZA timber piles shall be urea coated to mitigate potential leaching of copper into the waterways.

• Worker Environmental Awareness Training, required for all project personnel (including those on project-related watercraft), shall be conducted by an NPS approved biologist before the start of work.

Following recent consultations with the appropriate federal, state, and local regulatory agencies, NPS has learned that the earlier 2001 certifications, permits, and concurrence determinations for dock repair, stabilization, including seismic upgrades and maintenance are no longer valid or have expired due to the lapse in time, changes in environmental conditions, new requirements, and project scope updates. As a result, NPS has begun the consultation and application processes again with the same agencies, that is, the National Marine Fisheries Service (NMFS), U.S. Army Corps of Engineers (USACE), San Francisco Bay Regional Water Quality Board (RWQCB), and the San Francisco Bay Conservation and Development Commission (BCDC). Many of the earlier required conservation measures, conditions, and BMPs from these agencies will be updated and likely include new ones. All these will be included in Attachment F – Regulatory Consultations, Permits, Conditions, Conservation Measures And as approved in the 2001 EIS, the NPS would also use adaptive management strategies to ensure the intensity and duration of project impacts are reduced wherever feasible. If through monitoring, it is determined that additional impacts beyond those disclosed in the EIS may occur, the NPS would take corrective actions to reduce the level of impacts to the level identified in the

EIS.

C. Previous Compliance Documentation

PEPC ID: 64425 - Alcatraz Island Historic Preservation and Safety Construction Program Final Environmental Impact Statement (FEIS, 2001) and Record of Decision (ROD, 2002).

The FEIS evaluated and approved 10 repair/construction projects under a Proposed Action.

Depending on funding, the projects would be designed and analyzed in more detail in separate NEPA documents, as appropriate, and implemented in phases with construction expected to take 5-7 years to complete.

The projects included:

• Dock Repair (repair, stabilize, seismically upgrade, and maintain the existing dock)

• Building 64 (Balconies Repair)

• Cellhouse Stabilization and Seismic Upgrade

• Sallyport Structural Repair and Seismic Upgrade

• Water Tower Stabilization

• Slope Stabilization

• New Industries (Laundry) Building Stabilization and Seismic Upgrade

• Building 64 (Seismic Upgrade)

• Quartermaster Building Stabilization and Seismic Upgrade

• Fuel Line Remediation.

To date, the majority of the projects listed above have been approved and completed through Consistency Memos. Only several remain, including this Stabilize Wharf Project.

The following two PEPC projects related to this project were reviewed and approved with separate categorical exclusions include:

• PEPC 79675 - Replace Fender Piles on Fixed Wharf and Finger Pier (AL-211), Alcatraz Island;

• PEPC 81385 - Testing and Evaluation Engineering Studies for Stabilizing 1939 Concrete Wharf AL211, Alcatraz Island; and

See the following attachments for more specific project details, impact analysis, mitigation measures, and previous project compliance, documentation, and approvals demonstrating consistency with the Alcatraz Island Historic Preservation and Safety Construction Program

FEIS/ROD.

• Attachment A – NPS Regional Power Point Project Presentation, 2019

• Attachment B – GGNRA 5x/Project Reviews - Stabilize 1939 Concrete Wharf AL211, Alcatraz Island, 2017 and 2019

• Attachment C – Assessment of Effect on Historic Properties, 2021

• Attachment D – Environmental Screening Form and Addendum, 2021

• Attachment E – FEIS Mitigation Measures, Monitoring Program, and Project Conditions

• Attachment F – Regulatory Consultations, Permits, Conditions, Conservation Measures

D. NEPA: Memo to file

Added to File Date: Memo to File date will be the date of Superintendent’s signature.

Explanation: The project is identified in an existing environmental compliance document;

Alcatraz Island Historic Preservation and Safety Construction Program Final Environmental Impact Statement (FEIS,2001) and Record of Decision (ROD, 2002)

E. Conclusion

The interdisciplinary team (IDT), consisting of the IDT members listed below, conducted internal scoping to review the proposed project. The team concurs that the previous document adequately describes and analyzes the impacts for PEPC Project ID#:74700 - Stabilize 1939

Concrete Wharf (AL211). The description of impacts (context, intensity and duration) remain the same as described in the previous NEPA document, and site conditions have not changed since preparation of the environmental assessment. No additional public involvement is required. Neither the EIS nor this evaluation has identified adverse resource impacts that would lead to an impairment of National Park System resources and values if this project is implemented. This assessment is consistent with the 2002 Record of Decision.

Interdisciplinary Team Leader Name

Jason Hagin

Field of Expertise

Project Manager

Technical Specialists Names

Bill Merkle Bob Holloway Brian Aviles Darren Fong Erika Cooper Jason Hagin Larry Miranda Lidia D’Amico Peter Gavette Tania Pollak Tori Seher

Field of Expertise

Wildlife Ecologist NHPA 106 Program Manager Planning & Environmental Programs Chief Aquatic Ecologist NHPA Compliance and Tribal Liaison Historical Architect Environmental Protection Specialist Alcatraz Biologist Archeologist Environmental Protection Specialist Alcatraz Biologist

F. Signatory

Based on the environmental impact information contained in the statutory compliance file and in this environmental screening form, environmental documentation for this stage of the subject project is complete.

Recommended by the following Compliance Specialists:

NEPA

Larry Miranda Date:

NHPA

Erika Cooper Date:

Approved by General Superintendent:

Date:

Laura E. Joss

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ATTACHMENT A

Project Power Point Presentation, 2019

Stabilize 1939 Concrete Wharf AL211, Alcatraz Island

Pacific West Region

San Francisco, CA

GOGA 215726

Stabilize 1939 Concrete Wharf AL211, Alcatraz Island

Pacific West Region

Presenter: Jason Hagin Presentation Date: 04/03/2019

Purpose of Presentation Review Phasing of Seismic

Upgrade and Repairs At 60% Schematic Design

Approval to go to May 15 PWR Project Review and

July DAB

Project Background Alcatraz Island National Historic Landmark District welcomes 1.7 million annual visitors

1939 Fixed Wharf is only access/egress for all island operations

Phase 1 Repairs in 2019 - $1.3M Non-NPS Funds

Phase 2 Repairs and Seismic Upgrade in 2021 - $11M LIC

Previous Wharves The first wharf at Alcatraz was built in 1852. Enlarged in 1855.

Cast iron “spider piles” were installed in 1863-1865.

1868-1869 an extension to the wharf and a boathouse were added for a new steamboat.

1883 the wharf size was doubled, with two coal bins and a new boathouse added. Enlarged in 1886.

Strengthened in 1907 with steel framing for receiving construction materials and coal.

A launch landing was built between 1914 and 1919.

Gateway: Past, Present & Future

1939 Existing Wharf Construction 1939 – 1941: Bureau of Prisons

1988 Structural Condition-Report Ace Pacific Engineering

1998 Structural Condition-Report Ace Pacific Engineering

1999 Seismic Improvements - Design

2001 Repair and Seismic Improvements; Blue&Gold Fleet/Mason

Const. (Incomplete)

2010 Structural Condition (URS)

2011 Structural Survey, Fiberwrap Construction

2012 Pile Pilot Repair; URS /Fiberwrap

2012 Deck Survey; AME

2017 Condition Assessment; Moffit & Nichol

Treatment Chronology

Project Scope Typical concrete pile, beam and slab repairs (2019) Seismic upgrade (install 2 new seismic “dolphins”) with balance of repairs (2021) Repoint historic stone seawall (available funds)

Existing Conditions

Because of its robust original design to support larger loads than the reduced loading it is now supporting it can continue to function in this capacity despite the reduction in strength from deterioration.

Pile, Beam and Slab Repairs

Structural Geometry

Pile Damage And Repairs

Pile Repairs Include Galvanic Anodes and Fiberglass Jackets https://www.youtube.com/watch?v=cDKu7lDr2xU

Beam Damage And Repairs

Beam Repairs Include Galvanic Anodes and 1” More Cover

Extensive Full Beam Repairs

Slab Damage And Repairs

Slab Repairs Include Galvanic Anodes and 1” More Cover

Schematic Seismic Upgrade

Seismic Upgrade Preferred Alternative (install 2 interior seismic “dolphins”)

(10) New 2’-6” Diameter Piles with 4’-0” Deep Caps Tied To Existing Structure

Seismic Upgrade Value-based Alternatives Alternatives 1) perimeter dolphins, 2) distributed (interior) dolphins and

3) perimeter frames.

Perimeter Dolphins at the perimeter of the wharf create both physically and visually impacts on the historic fabric and character of the resource.

Perimeter Frames at the perimeter of the wharf create both physical and visual impacts on the historic fabric and character of the resource.

Distributed (Interior) Dolphins at the interior of the wharf have least physical and visual impacts on the historic fabric and character of the resource.

Cost between the three alternatives is comparable.

Other Project Impacts Seasonal Closures and Wildlife

Protection Measures Possible Abandoned Fuel Lines Utilities In Areas Of Work Inconveniences To Visitor

Programs and Concessionaire Operations

TYPICAL FOR CONSTRUCTION ON

ALCATRAZ

ATTACHMENT B

PEPC 74700 - Alcatraz Wharf Stabilization Project

5x/Project Review Minutes, 2017, 2019

TO: General Superintendent, Golden Gate National Recreation Area

THROUGH: Deputy Superintendent

FROM: Larry Miranda –Acting NEPA Program Manager

Bob Holloway – Cultural Resources Section 106 Coordinator

SUBJECT: NEPA/NHPA Project Review/5X Committee Conditions/Recommendations

Included below are summaries of the proposals, discussion, and conditions or recommendations for projects presented at the December 13, 2017 5X/Project

Review Meeting.

The signature of the General or Deputy Superintendent, indicating approval or concurrence, is required for each project within the jurisdiction of Golden Gate National

Recreation Area.

1. FORM REVIEW/APPROVAL – 5X/Project Review

Complete Seismic Upgrade and Structural Stabilization of the Prison Hospital Wing

(AL068), Alcatraz, Jason Hagin and Christina Wallace (GGNPC), PEPC 64425

NOTE: Details of this project are intentionally removed for purposes of the Consistency Memo for only the following project

2. SCOPING – 5X/Project Review

Stabilize 1939 Concrete Wharf AL211, Alcatraz Island, Jason Hagin and Christina

Wallace (GGNPC), PEPC 74700

Project Description

This project proposes repairs to the historic concrete fixed wharf on Alcatraz Island.

Because the Alcatraz island bedrock rises abruptly from the floor of San Francisco Bay, there is only one island location that is suited to landing a boat. Since the island was first developed by the Army in 1853, the wharf has been in its present location, at the southeast end of the island. The 1854 stone seawall bulkhead is still visible at the northern edge of the

1939 concrete wharf that exists today, which greets every arriving vessel and more than

1.4 million annual visitors to the National Historic Landmark District. The 1939 concrete wharf has significance as the only access to the island during the penal and Indian occupation periods on the island, and is sited on older military era constructions. It was the subject of a 1.2 million dollar concessionaire funded emergency repair project in 2001, which affected repairs on roughly one-fourth of the concrete structural components of the highly used feature crucial to continued operations of the Landmark (see "Dock Repair" project as described in the Alcatraz Island Historic Preservation and Safety Construction EIS

(2001 EIS)). The effects of seawater deterioration and deferred maintenance were assessed in March of 2011 by contractors hired by the concessionaire. A prototype column repair was performed in April 2012 to better inform costs and phasing of this project. A dive survey and condition assessment was conducted in October of 2016 and informs the current design. This project will implement voluntary seismic improvements and structural repairs

Memorandum

Division of Planning Fort Mason, Building 201 San Francisco, CA 94123 www.nps.gov/goga https://pepc.nps.gov/projectHome.cfm?projectID=64425 https://pepc.nps.gov/basicInformation.cfm?mode=view&projectID=74700 http://www.nps.gov/goga

NEPA/NHPA Project Review/5X Committee Conditions/Recommendations – December 13, 2017 Page 2 of 4 [Type here]

E X P E R I E N C E Y O U R A M E R I C A

The National Park Service cares for special places saved by the American people so that all may experience our heritage.

to the columns, beams and slab/soffits of the wharf structure in order to preserve this contributing feature of the National Landmark, ensure visitor and staff safety and continued island operations. Design is currently ongoing by the firm of Moffet &Nichol under contract with the Conservancy. The project will need to be phased according to available funding and will follow the mitigation measures outlined in the 2001 EIS.

Repair / modification types can be generally categorized as follows:

1. Seismic Anchorage (Tie Rods)

2. Pile Repairs/Pile Replacements (Seismic Dolphins)/Pile Jacketing

3. Deck/Beam Repairs - Below Deck

4. Deck Repairs - Above Deck

There will be a need to research what permits, if any, were acquired for the 2001 repairs and the 2012 pile jacketing, to help inform the permitting for the current planned work. The

NHPA and NEPA compliance pathways for the project have been established by the 2001

EIS.

Discussion

• Brian Aviles, Chief of Planning asked if utilities were found under the deck. Hagin responded that there was likely the waste line, electrical, and fresh water lines. Peter

Gavette confirmed that he noted the utilities while on the site visit. Vika Sirova, Environmental Protection Specialist, added that the fuel line is also located under the deck.

• Daphne Hatch, Chief of Natural Resources, noted that pigeon guillemots nest under the deck and that coordination would be needed as to not interfere with the birds during their nesting season. Hagin concurred, and stated that a lot of overlapping work windows would be considered when planning construction.

• Noemi Robinson, Chief of Special Park Uses, added that the PMs should keep events in mind when planning and to coordinate with her office once the construction timeline is established.

5X Discussion

• This project is a continuation of critical repairs to the Dock Repairs project included in the Alcatraz Island Historic Preservation Safety Construction Program and its 2001 Final

EIS (FEIS). The project will remain, through its continued design development and construction, consistent with the FEIS and compliant with its mitigations identified in

Section 2.7.2., as well as with the GMP. A Consistency Memo (with the FEIS) will be required for NEPA.

• Park Archeologist (Peter Gavette, 289-1893) assisted with the Moffatt & Nichol

(contractor) under-pier condition survey earlier this year and will need to provide

Interim PM Jason Hagin (and upload to PEPC) an Archeological Management Assessment

(AMA) prior to ground disturbing activities and to develop a course of action consistent with the FEIS mitigations regarding a testing plan and monitoring during construction, if necessary.

• The Selected PM will continue to work with Interim PMs Hagin and Wallace through completion of project design and construction phases, including Hagin as a member of the project IDT.

5X RECOMMENDATIONS:

1. In particular because Alcatraz Island is a National Historic Landmark and therefore requires a higher level of scrutiny, Interim PMs Hagin and Wallace will need to ensure

NEPA/NHPA Project Review/5X Committee Conditions/Recommendations – December 13, 2017 Page 3 of 4 [Type here]

The National Park Service cares for special places saved by the American people so that all may experience our heritage.

that this project adheres to the Secretary of the Interior’s Standards for Rehabilitation, and that it is consistent with the 2001 Alcatraz Island Historic Preservation Safety

Construction Program Final EIS (FEIS) and its mitigations.

2. The Selected and Interim PMs will return for final compliance review when project design reaches approximately 50% design development stage.

PROJECT REVIEW RECOMMENDATIONS:

The Executive Committee (EC) was supportive of this project continuing to move forward with the creation of an IDT. The IDT, under the coordination of Interim PMs Hagin and

Wallace, will address concerns raised during discussion and the recommendations outlined below:

1. PMs will assemble an IDT of the following individuals to assess project elements:

1. Benny Batom, Acting Alcatraz Site Supervisor

2. David Dusterhoff, Alcatraz Maintenance Supervisor

3. Tori Seher, Alcatraz Wildlife Biologist

4. Bill Merkle, Supervisory Wildlife Biologist

5. Stef Martin, Partnerships Branch Lead

6. Conservancy Operations (GGNPC staff TBD)

7. Darren Fong, Aquatic Ecologist

8. Interpretation (TBD)

9. Business Management Office (TBD)

10. Maria Banuelos Connell, Concessions Management Specialist

2. PMs should work with Liz Gill, NEPA Assistant, to begin preparing a Consistency Memo

(Memo), documenting how the project and its resource impacts are consistent with the

Alcatraz Island Historic Preservation and Safety Construction Program Final EIS (Final

EIS).

3. Final EIS/ROD Mitigation Measures:

a) PMs will ensure the appropriate mitigation measures from the Final EIS/ROD are incorporated into the project construction contract.

b) Any proposed exceptions to the FEIS mitigation measures by the PM will be reviewed and approved by the IDT and incorporated in the Memo with an impact analysis prepared by the appropriate resource specialist(s).

c) Any avoidance or mitigation measures for pigeon guillemot, a new seabird species nesting at Alcatraz after the FEIS was approved, recommended by wildlife biologists and any other new IDT condition(s) will be included in the

Memo.

4. PMs will work with the appropriate IDT resource specialists to complete any permitting and consultations required by the following agencies::

a) Army Corps of Engineers

b) San Francisco Bay Conservation and Development Commission – Coastal Zone

Management Act (CZMA)

c) NMFS consultation

i. Section 7

ii. Essential Fish Habitat

5. PMs should begin to work with Mylee Williams, Safety Officer, to review and approve a

NEPA/NHPA Project Review/5X Committee Conditions/Recommendations – December 13, 2017 Page 4 of 4 [Type here]

The National Park Service cares for special places saved by the American people so that all may experience our heritage.

health & safety plan.

6. PMs should begin to work with Bruce Badzik on implementing strategies that exclude introduction of pests to Alcatraz

7. PMs should begin to consult with Noemi Robinson, Office of Special Park Uses, of the construction dates in order to start making adjustments to special events.

8. PMs will return to Project Review/5X for final review/approval at approximately 50% design development.

General Superintendent’s Comments:

Concurrence:

[signed by Laura E. Joss on 2/6/18]

General Superintendent Date

TO: General Superintendent, Golden Gate National Recreation Area

THROUGH: Deputy Superintendent

FROM: Larry Miranda – Acting NEPA Program Manager

Bob Holloway – Cultural Resources Section 106 Coordinator

SUBJECT: NEPA/NHPA Project Review/5X Committee Conditions/ Recommendations

Included below are summaries of the proposals, discussion, and conditions or recommendations for projects presented at the April 3, 2019 5X/Project Review Meeting.

The signature of the General or Deputy Superintendent, indicating approval or concurrence, is required for each project within the jurisdiction of Golden Gate National Recreation Area.

1. FORM REVIEW/APPROVAL – 5X/PROJECT REVIEW

Fort Mason Wastewater Collection System and Lift Station Rehabilitation, Mike Ryan, PEPC 77998

Note: Details of this project are intentionally removed for purposes of the Consistency Memo for only the following project

2. FORM REVIEW/APPROVAL– 5X/PROJECT REVIEW

Stabilize 1939 Concrete Wharf AL211, Alcatraz Island, PEPC 74700, Jason Hagin

Repairing, replacing, and seismically stabilizing structural elements of the 1939 Concrete Wharf was approved as one of several components in the Proposed Action Alternative in the 2001 Alcatraz Island Historic Preservation and Safety Construction Program Final Environmental Impact Statement (FEIS). The NPS Project Manager, Jason Hagin, is seeking approval for 60% designs by Moffatt and Nichol is now The FEIS addresses repairs and seismic upgrades of structures on Alcatraz Island. This proposed project addresses repairs and seismic upgrade of the Alcatraz Fixed Wharf, including: repair/replacement of piles, beams, and repairs of the dock deck. The seismic upgrade consists of placing additional piles (“dolphins”) in two areas of the dock. This proposed project addresses repairs and seismic upgrade of the Alcatraz Fixed Wharf, including: repair/replacement of piles, beams, and repairs of the dock deck. The seismic upgrade consists of placing additional piles (“dolphins”) in two areas of the dock.

Planning Division

Fort Mason, Building 201

San Francisco, CA 94123 https://pepc.nps.gov/projectHome.cfm?projectID=77998 https://pepc.nps.gov/projectHome.cfm?projectId=74700

Because the Alcatraz island bedrock rises abruptly from the floor of San Francisco Bay, there is only one island location that is suited to landing a boat. Since the island was first developed by the Army in 1853, the wharf has been in its present location, at the southeast end of the island. The 1854 stone seawall bulkhead is still visible at the northern edge of the 1939 concrete wharf that exists today, which greets every arriving vessel and more than 1.4 million annual visitors to the National Historic Landmark District. The 1939 concrete wharf has significance as the only access to the island during the penal and Indian occupation periods on the island, and is sited on older military era constructions. It was the subject of a 1.2 million dollar concessionaire funded emergency repair project in 2001, which affected repairs on roughly one-fourth of the concrete structural components of the highly used feature crucial to continued operations of the Landmark (see "Dock

Repair" project as described in the Alcatraz Island Historic Preservation and Safety Construction EIS (2001 EIS)).

The effects of seawater deterioration and deferred maintenance were assessed in March of 2011 by contractors hired by the concessionaire (see PEPC 40791). A prototype column repair was performed in April 2012 to better inform costs and phasing of this project (see PEPC 39559). A dive survey and condition assessment was conducted in October of 2016 and determined that the 2001 repairs were not completed. The park gave design direction in 2017 to include voluntary seismic upgrades as part of the stabilization design.

The repair/replacement and seismic upgrade under this project would preserve this contributing feature of the National Landmark, ensure visitor and staff safety and continued island operations. Design is currently ongoing by the firm of Moffatt &

Nichol under contract with the Conservancy. The project would need to be phased according to available funding and would follow the mitigation measures outlined in the 2001 EIS.

5x Discussion

• Alcatraz Island is designated a National Historic Landmark and therefore retains a higher level of importance, integrity and sensitivity to change.

• This dock repair and seismic upgrade project was included in the previously reviewed and approved Alcatraz Island Historic Preservation and Safety

Construction EIS (2001) and FEIS/ROD (2002).

• The EIS/FEIS 2.7.2 (Salvage of Historic Materials) calls for the possible removal and retention of several decommissioned “Spider” piles for the Park Museum Collection, however the Cultural Assessment Team felt these features, if removed, did not warrant enough architectural significance to retain for the

Collection.

• Elements from a 6” abandoned fuel line, part of which fell into the Bay several years ago, may still exist under the wharf. The current project’s engineer’s report may be helpful in identifying any remains, which may then be slated for removal as part of this project’s scope of work.

• The wharf pile repairs and seismic work will likely result in the need to repair areas of the concrete decking on top of the wharf.

• Note: At the conclusion of the presentation, the Cultural Compliance staff determined the project has been designed with enough detail to complete an NHPA Section 106 Assessment of Effect and the project status could be changed to Form Review.

Project Review Discussion

• Repairing, replacing, and stabilizing structural elements of the Concrete Wharf was approved in the Proposed Action Alternative in the 2001 Alcatraz Island

Historic Preservation and Safety Construction Program Final Environmental

Impact Statement (FEIS). The FEIS includes required mitigation measures; the relevant mitigation measures from the FEIS would be incorporated into this project.

• Since 2001, biological resources on the Island have changed, and include new colonies of breeding birds. To protect nesting birds on the Island, construction work shall be limited to September 1 through April 25, a modification from the dates in the FEIS. Any additional mitigation measures needed to protect new breeding bird colonies will be developed in consultation with the Alcatraz Biologist, Tori Seher.

• The Executive Committee is supportive of completing the project in one phase rather than undertake the work in two phases as currently detailed in the FEIS to avoid paying for mobilization twice. Staff will determine whether any funding constraints preclude this option.

• The seismic upgrades proposed as part of the project could be done entirely within a cordoned-off area to avoid impacts to visitor access routes.

• To avoid impacts to visitors, there may be consideration of some night work to accomplish the project.

• The fender piles as previously approved by Categorical Exclusion in PEPC

79675 would not be affected.

• The maintenance needs associated with this project would be the responsibility of NPS. Maintenance of the wharf was not included in the new concession contract. There would be additional impacts to the life cycle of the project if prescribed maintenance was not accomplished due to GGNRA

Maintenance capacity, funds, expertise, etc.

5X STIPULATIONS:

This project has been reviewed and certified as consistent with the previously approved Alcatraz Island Historic Preservation & Safety Construction EIS (2001) and FEIS/ROD (2002), and additionally for NHPA Section 106 compliance under the park Programmatic Agreement as No Adverse Effect with the following stipulations:

1. Contractor will continue to consult with Park Historical Architect (Jason Hagin, 561-4973) as design details are finalized and if questions arise during construction.

2. If historic objects are discovered under water or need to be removed during installation, Project Manager and Contractor will consult with Park Archeologist

(Peter Gavette, 289-1893) to determine whether materials should be recovered and retained.

3. Project Manager will consult with Historical Landscape Architect (Amy Hoke, 561-4753) to ensure repairs to concrete decking match adjacent concrete in color and texture, and whether any larger areas of concrete repair will require date stamping.

PROJECT REVIEW CONDITIONS:

With completion of the 5X Stipulations above and the following Project Review

Conditions, the Executive Committee recommended the project may move forward for Superintendent's final review. The NEPA team will prepare a separate Memo to File to ensure the project is consistent with the 2001 Alcatraz Island Historic

Preservation and Safety Construction Program FEIS. The Executive Committee (EC) recommends approval of the project with the following conditions:

1. All of the relevant mitigation measures from the FEIS will be implemented before and during construction.

2. PM shall ensure compliance with all required environmental laws and completion of required regulatory review and permits, including:

a. San Francisco Bay Conservation and Development Commission (BCDC) consistency determination;

b. Regional Water Quality Control Board (RWQCB) Section 401 for overwater structures;

c. Endangered Species Act (ESA) including consultation with U.S. Fish and Wildlife Service (USFWS) and National Marine Fisheries Service

(NMFS); and

d. U.S. Army Corps of Engineers (USACE) Section 404.

3. Prior to initiation of construction, PM shall coordinate with Alcatraz Biologist (Tori Seher, 561- 4908) to verify construction work windows and if any additional mitigation measures are needed to protect new breeding bird colonies.

Following completion of all of the stipulations and conditions listed above, including final review and Superintendent’s signature of the FEIS Memo to File, the project will be approved for implementation as proposed.

Comments:

Approved:

General Superintendent Date

ATTACHMENT C

NHPA Assessment of Effect on Historic Properties, 2021

Letter of NHPA Section 106 Compliance Completion

H4217 (GOGA-CRMM)

2/19/2021

To: Jason Hagin, Project Manager

From: General Superintendent, Golden Gate NRA

Subject: NHPA Clearance: Stabilize 1939 Concrete Wharf AL211, Alcatraz Island (PEPC 74700)

The Cultural Assessment Team has reviewed the proposed project/action and completed its certification for compliance with the National Historic Preservation Act through our Park Programmatic Agreement.

We have determined that there will be No Adverse Effects on historical, cultural, or archeological resources, provided you meet all stipulations identified below.

The subject proposed project/action(s), therefore, is/are now cleared for all NHPA compliance requirements as presented. Project plans and specifications are approved and construction and/or project implementation can commence once you have met any NEPA requirements, as well as all stipulations identified below.

For the proposed project actions to be within compliance requirements during construction and/or project implementation, the following cultural resource stipulations must be adhered to:

Contractor will continue to consult with Park Historical Architect (Jason Hagin, 561-4973) as design details are finalized and if questions arise during construction.

If historic objects are discovered under water or need to be removed during installation, Project Manager and Contractor will consult with Park Archeologist (Peter Gavette, 289-1893) to determine whether materials should be recovered and retained.

Project Manager will consult with Historical Landscape Architect (Amy Hoke, 561-4753) to ensure repairs to concrete decking match adjacent concrete in color and texture, and whether any larger areas of concrete repair will require date stamping.

For complete compliance information see PEPC Project 74700. If you have any questions, please contact CRM Specialist (Curator) Bob Holloway at 415-561-4976.

for Laura E. Joss

Signed electronically by Gordon White, Chief of Cultural Resources, February, 23, 2021

General Superintendent

Date: 02/19/2021

ASSESSMENT OF ACTIONS HAVING AN EFFECT ON

HISTORIC PROPERTIES

A. DESCRIPTION OF UNDERTAKING

1. Park: Golden Gate National Recreation Area

2. Project Description:

Project Name: Stabilize 1939 Concrete Wharf AL211, Alcatraz Island Prepared by: Robert Holloway Date Prepared: 04/03/2019 Telephone: 415-561-4976 PEPC Project Number: 74700 Locations:

County, State: San Francisco, CA Describe project:

Because the Alcatraz island bedrock rises abruptly from the floor of San Francisco Bay, there is only one island location that is suited to landing a boat. Since the island was first developed by the Army in 1853, the wharf has been in its present location, at the southeast end of the island. The 1854 stone seawall bulkhead is still visible at the northern edge of the 1939 concrete wharf that exists today, which greets every arriving vessel and more than 1.4 million annual visitors to the National Historic Landmark District. The 1939 concrete wharf has significance as the only access to the island during the penal and Indian occupation periods on the island, and is sited on older military era constructions. It was the subject of a 1.2 million dollar concessionaire funded emergency repair project in 2001, which affected repairs on roughly one-fourth of the concrete structural components of the highly used feature crucial to continued operations of the Landmark (see "Dock Repair" project as described in the Alcatraz Island Historic Preservation and Safety Construction EIS (2001 EIS)).

The effects of seawater deterioration and deferred maintenance were assessed in March of 2011 by contractors hired by the concessionaire (see PEPC 40791). A prototype column repair was performed in April 2012 to better inform costs and phasing of this project (see PEPC 39559). A dive survey and condition assessment was conducted in October of 2016 and determined that the 2001 repairs were not completed. The park gave design direction in 2017 to include voluntary seismic upgrades as part of the stabilization design.

This project will then implement voluntary seismic improvements and structural repairs to the columns, beams and slab/soffits of the wharf structure in order to preserve this contributing feature of the National Landmark, ensure visitor and staff safety and continued island operations. Design is currently ongoing by the firm of Moffat & Nichol under contract with the Conservancy. The project will completed in a single phase of construction, Non-NPS funds will be used to complete the design, LIC program funds will be used to fund construction, construction management and construction contingency, and the implementation of the the repair and seismic upgrade work will follow the mitigation measures outlined in the 2001 EIS.

Repair / modification types can be generally categorized as follows:

1. Seismic Anchorage (Tie Rods)

2. Pile Repairs/Pile Replacements (Seismic Dolphins)/Pile Jacketing

3. Deck/Beam Repairs - Below Deck

4. Deck Repairs - Above Deck

The project will likely require the following permits:

1. BCDC-consistency determination

2. US Army Corps-Nationwide

3. RWQCB-401 certification

Permitting for the project is being conducted by the engineering firm Moffat & Nichol under contract with the Parks Conservancy. The NHPA and NEPA compliance pathways for the project have been established by the

2001 EIS.

1) Work window Total duration: 36 months Drilling duration: approx. 5 months Nesting season: February 15 to August 30 per 2001 FEIS, day and nighttime construction work (early first shift, first shift and potential third shift work anticipated).

In-water work window: June 1 through November 30

2) Pile installation Method: A casing is installed through the water column and approximately 2-5 feet into the silt/sediment layer until bedrock is reached.

An impact pile driver is used to install the casing. The casing prevents spoils from entering the bay. Up to 2 casings could be installed per day and impact pile driving could occur for 20 to 30 minutes per casing.

Rock sockets are then drilled to depth and pipe piles are grouted in. A rotary drill rig would be used to drill the rock sockets. Drilling could occur for up to 5 hours per pile with one pile being installed per day. After the pipe pile is placed and grouted the casing is removed.

Up to 10, 30-inch diameter would be installed using this method. In addition, up to 5, 16-inch diameter piles may need to be drilled and placed or may be placed into existing sockets.

3) Pile Quantity and Size

- Up to 5, 16-inch diameter pre-cast concrete rock-socketed piles

- Up to 10, 30-inch diameter steel rock- socketed piles

- Up to 206, 16-inch piles repaired with fiberglass jackets.

4) Square Footage of the Repair/Replacement Overwater Structure

- The existing slab area proposed for repair is approximately 3700 sq. ft.

- The existing beam linear feet of repair is approximately 2500 ft. or approximately 5000 sq. ft.

Area of potential effects (as defined in 36 CFR 800.16[d]) Concrete Wharf (AL-211) within the Alcatraz Island NHL District

3. Has the area of potential effects been surveyed to identify historic properties?

No

X Yes

Source or reference: Alcatraz Island NR and NHL Nomination Forms, CLI, CLR, FEIS and

HRS

4. Potentially Affected Resource(s):

Archeological Resources Present: Yes

Archeological Resources Notes: Resources are present on and around the waters of the Alcatraz Island NHL APE but are not expected to be affected. A precautionary inadvertent discovery stipulation will be placed on the project.

Historical Structures/Resources Present: Yes

Historical Structures/Resources Notes: Concrete Wharf (AL-211) within the Alcatraz Island NHL District

Cultural Landscapes Present: Yes

Cultural Landscapes Notes: The Alcatraz Island NHL District Landscape

Ethnographic Resources Present: Yes

Ethnographic Resources Notes: Resources are present on Alcatraz Island NHL APE but are not expected to be affected.

5. The proposed action will: (check as many as apply)

Yes Destroy, remove, or alter features/elements from a historic structure

Yes Replace historic features/elements in kind

Yes Add non-historic features/elements to a historic structure

Yes Alter or remove features/elements of a historic setting or environment (inc. terrain)

Yes Add non-historic features/elements (inc. visual, audible, or atmospheric) to a historic setting or cultural landscape

No Disturb, destroy, or make archeological resources inaccessible

No Disturb, destroy, or make ethnographic resources inaccessible>

Yes Potentially affect presently unidentified cultural resources

No Begin or contribute to deterioration of historic features, terrain, setting, landscape elements, or archeological or ethnographic resources

No Involve a real property transaction (exchange, sale, or lease of land or structures)

Other (please specify):

6. Supporting Study Data:

(Attach if feasible; if action is in a plan, EA or EIS, give name and project or page number.)

B. REVIEWS BY CULTURAL RESOURCE SPECIALISTS

The park 106 coordinator requested review by the park's cultural resource specialist/advisors as indicated by check-off boxes or as follows:

[ X ] 106 Advisor Name: Robert Holloway Date: 04/03/2019 Comments: Reviewed at 5x/Project Review Meeting 4/03/19 and certified under Park P.A. as No Adverse Effect with stipulations.

Check if project does not involve ground disturbance…