Historic Preservation

5 HISTORIC PRESERVATION

Shipyard aerial, 1945

3 6 | P ier 7 0 P referred M aster P lan Objectives Objectives works ofmasterarchitects.significant becauseitincludesimportant for theproductionvessels. Thedistrictisalso ofsignificantwartime relations, government, relationships, aswell andprivate as industry with pioneeringtechnologicaldevelopments inshipbuilding,labor industrial architecture anddesign.It issignificantforitsassociation provides aphysicalrecord expressing continuitywithpasttrends in As adistrict,Pier 70containsarichcollectionofresources and historic industrialcomplexinSan Francisco. tarian industrialstructures. It istheoldest,largestandmostintact style complexes, landmark qualitybuildings,andmore modestutili- includes acombinationofmasterarchitect, “CathedralofIndustry” tectural stylesfrom thelate19thtomid-20thcenturiesand The Pier 70 Historic District showcases awiderangeofarchi- C 2. 1. hapter history ofthebuiltenvironment atPierhistory 70. containing Non-Contributing Resources, reflective ofthe toopen andvacant areas construction major new orlocations Protect the integrityofPier 70Historic District by directing overall integrityoftheHistoric District. whilemaintainingthe needsof theindustry contemporary the tosupport priority tophysicalshipyard changesnecessary Pieroperations asanactofpreserving 70’s history, andgive Recognize continuationofviableshiprepair anddrydock 5: H 5: istoric P reser v ation priorities forPier 70. relative significanceandtodevelop strategy and thepreservation used afinergrainofanalysistofurther refine historic building’s significant. For contributing resources, the anditsconsultants Port whether theyreflect thehistoricperiodforwhichdistrictis depending ontheirhistoricsignificance,degree ofintegrity, and classified as “contributing” or “non-contributing” tothedistrict significance. In National Register historic districts, resources are Pier 70hostsanumberofindividualhistoricresources ofvarying Resources Historic 6. 5. 4. 3. and historicrehabilitation improvements. developmentin publicareas ofnew andopenspacesaspart function through aprogram ofcoordinated interpretive exhibits Promote anunderstandingofthesite’s history, significance,and early aspossible. resources along20thStreet forpublicandprivate investment as Prioritize thestabilizationandrehabilitation of Very Significant consistent withSecretary Standards. meetsPlan objectivesconstruction andissensitively designed, Apply infilldevelopment designcriteriafornew toensure new life toPier 70,consistentwithSecretary Standards. Encourage adaptive reuse ofthehistoricresources thataddnew N A L P R E T S A M D E R R E F E R P 0 7 R E I P 7 3 |

5 HISTORIC PRESERVATION 5 HISTORIC PRESERVATION

Contributing resources were classified into three categories below, Context Resources would be rehabilitated so that the overall char- and shown in Exhibit 5, Historic Resource Rating and Table 1, acter and integrity of the district is preserved. Removal of some Historic Resource Profiles: Context Resources is allowed to achieve Plan goals.

Very Significant Resources are the most historically and architec- The implementation strategy further places a priority on the reha- turally significant resources. In general, this highest rating has been bilitation of the most significant and fragile resources, and accepts assigned to the historic resources fronting on 20th Street, referred to that rehabilitation of less significant resources may take longer as as the Pier 70 historic core. These resources are generally the oldest a result. Within this strategy, the Port is struggling to address a and rarest, or are the work of master architects and are individually critical immediate need to secure funding or other resources to eligible for National Register listing. The Plan calls for rehabilita- help stabilize very fragile Very Significant Resources, most notably tion of all Very Significant Resources.

Significant Resources are historically or architecturally significant individually, but may not be individually eligible for listing in the National Register. Significant Resources together with the Very Significant Resources are essential to maintain the National Register eligibility of Pier 70. This category includes significant structures for both World War efforts. The Plan calls for rehabilitation of all of these resources. The Plan highly discourages major modifica- tions, and removal would be considered only under extraordinary circumstances.

Context Resources date from the period of significance, and are important cumulatively to the historic district. These resources represent the largest number of historic features at the site and include structures that supported the World War II efforts and build-out of the shipyard in accordance with the 1945 Pier 70 Ship Yard General Plan. Under this Plan, a significant concentration of View looking down 20th Street from Illinois Street, 1941

3 8 | P ier 7 0 P referred M aster P lan wharves, piers,andvessels. Althoughtheyarewharves, notrecognized as Resources includemostofthesite’s watersidefeatures suchasslips, or have lostmost,orall,oftheirintegrity. Non-Contributing historic districtbecausetheypost-datetheperiodofsignificance historic resources thatare notessentialtotheeligibilityof of ResourcesNon-Contributing category compriseafourth this structure. capital budgetincludesfundsforafirstphaseofstabilization threatened by advanced deterioration.The Port’s FY10/11annual the Union Iron Works Machine Shop (Building 113/114),thatare Illustrative Rendering of Building 101 Building of Rendering Illustrative and purposefortherehabilitation ofthesite’s historicresources. tion ofthehistoricdistrictbecauseitprovides asource offunding New infilldevelopment within - Pier 70iskeytothepreserva Development Infill the Plan. tional needsoftheshipyard theoverriding andtosupport goalsof uting Resources wouldbeaffectedinorder toprovide fortheopera- Pier 70Historic District. The Plan anticipatesthat Non-Contrib- therefore are considered Non-Contributing resources withinthe Contributing Resources, theyare tothecontextand important N A L P R E T S A M D E R R E F E R P 0 7 R E I P 9 3 |

5 HISTORIC PRESERVATION 5 HISTORIC PRESERVATION

However, new development must respect the unique character and Oversight of Historic Preservation setting of the historic district as a maritime industrial complex. The Port has worked closely with the San Francisco Planning The pattern of the rail spurs and slipways, the scale of buildings, Department, State Historical Resources Commission (SHRC), and open space relationships, and visibility of the Bay are all factors that Office of Historic Preservation (OHP) to review and document have historically guided development in the past, as they should Pier 70 resources. Chapter 10 presents the Port’s implementation in the future. At Pier 70’s height of operations during World War strategy for work with these important regulatory partners in the II, development density was substantially higher than today, as area of historic preservation. This Plan provides the policy priorities reflected in the 1945 Pier 70 Ship Yard General Plan. To realize and guidance to help ensure that the future of the historic resources this Plan, development density must increase and will be subject to of Pier 70 meets the Plan’s historic preservation objectives. Infill Development Design Criteria described in Chapter 9. These criteria support the historic district by determining appropriate scale, design, and siting of new structures so that they help express Pier 70’s historic physical urban form, industrial history, and waterfront location, consistent with the Secretary’s Standards.

Building 12 Complex, looking northeast, 2009

4 0 | P ier 7 0 P referred M aster P lan

Right: Detail of historic furnace historic of Detail Right: northeast looking today, 4 Slipway Right: Upper southwest looking 1940, circa 4 Slipway in Top:Ship N A L P R E T S A M D E R R E F E R P 0 7 R E I P 1 4 |

5 HISTORIC PRESERVATION 5 HISTORIC PRESERVATION

Mariposa Street HISTORIC RESOURCES 114 VERY SIGNIFICANT 109 SIGNIFICANT Kneass 2 CONTEXT

REMNANT OF IRISH HILL

18th Street LINE OF HISTORIC UPLANDS 49

SHIP REPAIR (HISTORIC USE) 30 50 SLIPWAY 4

FORMER PIER, WHARF, OR SLIPWAY 110 SLIPWAY 3 SLIPWAY 2 SLIPWAY 1

68 58 PIER 70 AREA BOUNDARY 141 127 19th Street 109

250 111

38 40 36 119 6 120 121 122 108 101 102 104 105 20th Street 123 103 107 19 20th Street 113 23

114 14 115 64 116 21 11 117 2 66 3rd Street Illinois Street

Indiana Street SLIPWAY 5 Tennessee Street Minnesota Street

SLIPWAY 6

12 SLIPWAY 7 PG&E 15 SLIPWAY 8 22nd Street 22nd Street 32 25 N 16 0 100 200 300’

Exhibit 5: Historic Resource rAting

4 2 | P ier 7 0 P referred M aster P lan T 23 25 111 110 36 113 38 114 41 108 105 104 103 107 14 12 21 32 30 2 6 117 116 115 40 49 102 15 19 16 11 119 50 58 64 68 66 109 101 122 121 120 141 127 123 Building able No. 1: H 1: Twigg Brothers/Kneass Rail 20th Street Pier Pier Slip Drydock Eureka Pier Drydock No.2 Slips Slip Slip Pier Washroom and Washroom and Main Office,Warehouseand Yard Washroom/LockerRoom Welding Shop Machine Shop Pipe and Machine Shop Fire Station Planing Forge Union Steam Union Heavy Plate Electric Shop/Substation Template Warehouse Template Warehouse Warehouse Light Warehouse Concrete Concrete Bethlehem Galvanizing Powerhouse Layout Yard Garage Stress The Noonan Yard Washroom Substation Iron Fenceon Whirley CraneNo.27 Pier Pier Substation Pier Bethlehem Plate Bethlehem Union Dry Pipe Rack Slip Pier Pier Irish Pier Checkhouse No.2 istoric DockOffice 1 3 2 #4including lines 70 ‐ 'Wharf8 70 ‐'Wharf7 70 ‐Wharf6 68 ‐ Wharf4 68Substation 68 ‐ Wharf3 68Substation 68Breakroom/Washroom/Restroom 68 ‐ 'Wharf1 68Production Hill 5‐8 Warehouse Shop Shop Shop RelievingBuilding IronWorks IronWorks IronWorks Warehouse PowerhouseNo.2 No.1 Mill Remnant ElectricShop

Warehouse Warehouse No.2 No.1 #2 #6on SteelEmployment Welding SteelAdministration Paving Shop (Underwater) No.9(Shipyard and Building No. 20thand No.1/Blacksmith Storage/Foundry Locker Locker JoineryShop Cranes14&30 1 Pier Building Administration West movedGatehouse #4 #7/DryDockoffice Offices Platform R (Tool 70 Room Room BoatBuilding Illinios LumberShed esource No.5(Risdon Nameand Roomand Train Substation Office Streets Shop Building Center) Building Shop Office) Function IronWorks) No.3 P rofiles Appendix C:Pier70Properties Pier 70HistoricDistrict, NationalRegisterNomination,Appendix C,Page1 Square Feet 118,89 13,523 200steel frame 12,050 81,964 761brick 37,641 30,519 086steel/wood 40,846 56,268 011brick/steel 20,111 10,172 98,80 32,66 622brick/concrete 46,272 090steel 30,940 21,780 12,078 599steel 17,13 15,969 718steel 37,128 310steel 23,100 209steel/wood 82,099 ,5 brick/steel 1,356 ,0 brick masonry 8,800 ,3 steel frame 8,039 ,6 steel 3,461 ,8 steel 7,588 ,0 steel 1,407 ,5 wood frame 8,259 ,5 brick/steel 2,258 8,428 ,0 steel 4,900 ,5 steel/concrete 6,152 ,2 brick/steel 3,925 ,9 steel 1,392 ,7 wood frame 1,978 00steel 2070 519 9 steel/wood frame 991 7 steel 678 3 steel/concrete 939 8 wood frame 714 584 384 4 4 4 0 steel frame/woodfloor Construction brick masonry wood steel frame steel concrete concrete concrete concrete concrete concrete concrete concrete concrete brick steel steel masonry frame frame frame frame frame frame frame frame frame frame frame frame frame frame wood Type rm c. frame c.1940s, landscape 1886/1915/194 1886/1918/196 1885/86/191 c. 1914/36/4 ul District Date Built period 1945/198 1918/195 9011 Non Non 1900/1915 1900/1915 8611 Non 1886/1915 1936/194 1916/194 Post Post 1890/193 1911/13 1915/41 1941/4 1941/4 1937/41 1941/4 1916/17 1916/17 1912/3 Various c. c. 1917 c. movedc.1993 1890s 1940s 1942 1941 1970 1941 1941 1896 1936 1941 1941 1886 1937 1917 1941 1941 1941 1941 1937 1912 1941 1941 1900 1941 1917 1941 1945 1941 1941 1936 1944 1941 1943 1916 1940 1945 95Non‐contributing 1945 95Non‐contributing 1945 etr Contributing feature 88Contributing 1878 6 4 4 4 0 7 2 1 1 7 4 6 7 Non Non‐contributing/Setting Non‐contributing Non Non‐contributing/Setting Non Non Non‐contributing/Setting Contributing Contributing Contributing Non Non‐contributing/Setting Non‐contributing/Setting Contributing Contributing Contributing Contributing Contributing Contributing Contributing Contributing Contributing Contributing Contributing Contributing Contributing Contributing Contributing Contributing Contributing Contributing Non Contributing Contributing Contributing Contributing Contributing Contributing Contributing Contributing Contributing Contributing Contributing Contributing Contributing Contributing Contributing Contributing Contributing Contributing Contributing Non Contributing Contributing Contributing Contributing ‐contributing/Setting ‐contributing/Setting ‐contributing/Setting ‐contributing ‐contributing/Setting ‐contributing/Setting ‐contributing/Setting ‐contributing ‐contributing ‐contributing/Setting Rating N A L P R E T S A M D E R R E F E R P 0 7 R E I P Non Non Very Non Non Non Non Non Non Non Non Non Non Non Very Significant Context Significant Context Context Very Context Context Context Context Very Non Context Context Very Context Context Context Context Context Context Non Context Non Significant Very Significant Context Significant Context Significant Context Context Non Non Context Context Context Context Context Context Very Very Context Context Significant Non Context Context Historic ‐contributing ‐contributing ‐contributing ‐contributing ‐contributing ‐contributing ‐contributing ‐contributing ‐contributing ‐contributing ‐contributing ‐contributing ‐contributing ‐contributing ‐contributing ‐contributing ‐contributing ‐contributing ‐contributing significant significant significant significant significant significant significant significant Significance 3 4 |

5 HISTORIC PRESERVATION 6 LAND USE AND ADAPTIVE REUSE

Aerial Photo of Pier 70 looking northwest, with Dogpatch neighborhood in foreground, 2006

4 4 | P ier 7 0 P referred M aster P lan Objectives Objectives operations asreflected intheobjectives below. on infilldevelopment sitesto respect andaccommodateshipyard useswithinrehabilitated buildings new historicbuildingsandnew ties, andcompatiblefuture usesandactivities.The Plan expects operations, with24-houraround-the-clock heavyindustrialactivi- future, thePlan placesapriorityonmaintainingexistingshiprepair in thecityandsurrounding neighborhoods.In planningforthe and recreational amenitiesthatcontributetothequalityoflife use program emphasizes jobgeneration,economicdevelopment, district thatcanbringrenewed lifeandactivitytoPier 70.Theland The Plan establishesalanduseframeworktodevelop amixed-use CHAPTER 6: LAND USE AND ADAPTI AND USE LAND 6: CHAPTER 3. 2. 1. Street, toprovide anactive entrancetoPier 70. educational, retail, usesalong20th cultural,andentertainment Promote amixofusesorientedtoward commercial, office, 70’s historicresources. appreciation andoftherehabilitation ofthewaterfront ofPier Invite awiderangeofactivitiesthatpromote publicuseand compatible withtheoperationalneedsofshiprepair. ment andlandusesare designedandmanagedtorespect andbe and thePort’s mission.Ensure publictrust develop thatnew - objectivesconsistent withthehistoricpreservation ofthePlan Recognize is thatthecontinuationofshiprepair industry V support theexpense oftheirphysicalrehabilitation.support To maximize reuse becauseoftheneedtogeneratesufficient market value to the historicdistrict.Historic buildingsoftenposechallenges for rehabilitation andareas infilldevelopment targetedfornew within fies thelocationof Historic Resources proposed forhistoric buildings.Exhibitthan thosefornew 6,LandUse Plan, identi- Uses forrehabilitated historicbuildingstendtobemore limited Historic E REUSE E 7. 6. 5. 4. priately addressed. with shiprepair operationsandotheradjacentusesare appro- Allow limitedresidential ifconflicts development opportunities, shoreline parks andpublicspaces. contribute totheexperience,activities,andenjoyment of imaginative architecturaldevelopment designofnew to Consistent withtheopenspacepoliciesofthisPlan, encourage tated historicresources. andrehabili construction - trial, andinstitutionalusesinnew Allow office,biotech, research anddevelopment, lightindus- resources. significantgroupingpublic appreciation ofhistoric ofthisvery activate Pier 70’s historiccore along20thStreet, toattractbroad Machine Shop (building113/114)asananchorfacilityto Target publicly-orientedusesfortheUnion Iron Works B uildings N A L P R E T S A M D E R R E F E R P 0 7 R E I P 5 4 |

6 LAND USE AND ADAPTIVE REUSE 6 LAND USE AND ADAPTIVE REUSE

HISTORIC BUILDINGS

Mariposa Street SHIP REPAIR (HISTORIC USE)

OFFICE, BIOTECH, COMMECIAL, R&D, PDR Kneass MIXED USE- RESIDENTAL ALLOWED CRANE COVE PARK COMMERCIAL/SPECIAL USE- HISTORIC CORE

18th Street OPEN SPACE

BUILDING PROPOSED FOR REMOVAL* 50 PIER 70 AREA BOUNDARY SLIPWAY 4 110 *NOTE: BUILDING 21 PROPOSED TO BE RELOCATED 68 58 141 127 19th Street 109

EXHIBIT 6: 250 111 LAND USE PLAN

The land use plan describes the geographic 36 6 120 locations for the proposed uses of the site. It 122 108 designates the 17 acres of land for ship repair 101 102 104 105 103 20th Street 123 107 and identifies the proposed open space areas. 19 All of the remaining areas are designated for 113 23

mixed-use in various forms. The historic core 114 14 along 20th street is prioritized for publicly 115 64 21 oriented, cultural and commercial/recreational 116 21 uses that will generate activity and provide a 2

focus for the district. The southeastern area Illinois Street IRISH and other historic resources are targeted for HILL

job generating, office, emerging technologies, 12 research and development and PDR (including SLIPWAYS PARK artist studios) uses. Two sites along Illinois PG&E Street are designated for potential residential 22nd Street N development if compatible with industrial ship 0 100 200 300’ repair uses.

4 6 | P ier 7 0 P referred M aster P lan operations. in today’s market. This Plan incorporatesBAE’s planfor Pier 70 well-positioned tomaintainbusinessgrowth andstaycompetitive completed afacilityplanforitsshiprepair operationstoensure itis 14 existingstructures, isunderleasetoBAE.BAEhas recently repair. Currently and wharves, thisarea, whichincludesdrydocks, quadrantofthesiteadjacent totheBayat thenortheast for ship City’s economicbase.The approximatelyPlan reserves 17acres the thatsupports strategy inthePlan andalsoisakeyindustry iskeytothehistoricpreservation taining theshiprepair industry the Port’s maritimemissionandessentialgoalsofthePlan. Main- Preservation andenhancementofshiprepair usesare centralto Repair Ship 70. The following sectionsidentifytheplannedusesto revitalize Pier space anditsprominent locationwithinthesite. assembly useswhosefunctionsmaybewell-suited tothescaleof special outreach groups orpublic toidentifypotentialarts/cultural Works Machine Shop (building113/114),thePort willconduct alterations tohistoricresources. For the Very Significant Union Iron light industrialuses,asoptionsthatavoid theneedforcostly buildings. The Plan also forincluding recognizes theopportunity Plan promotes abroad rangeofusesforrehabilitated historic to diversity andefforts revitalize Pier 70asahistoricdistrict,the the rehabilitated historicbuildingsatPier 70.Restaurants, visitor- enhance thepublicnature ofthesiteare interest ofparticular in A rangeofretail, restaurant, andculturalusesthat entertainment, Entertainment Cultural, Restaurant, Retail, design withthehistoricdistrict. buildingsthatarebuildings andinnew compatibleinscaleand Pier 70.Development shouldincorporatetheseusesinhistoric manufacturing activities.Theseusesare permittedthroughout back-office uses,as wellas research anddevelopment andlight create demandforarangeofbiotech,medical,andlargefloor-plate The Plan assumesthat Mission UCSFcampuswill Bay anditsnew atPiercreation andeconomicinvestment70. willbenecessary Research anddevelopment andcommercial usesthatpromote job Commercial Development, and Research Biotech, Office, 20th Street looking east looking Street 20th N A L P R E T S A M D E R R E F E R P 0 7 R E I P 7 4 |

6 LAND USE AND ADAPTIVE REUSE 6 LAND USE AND ADAPTIVE REUSE

serving retail, hotel, and some types of entertainment and cultural Production, Distribution, Repair (PDR) uses are also consistent with the public trust. These activities should Industrial activities will continue at Pier 70. Pier 70’s historic be concentrated on 20th Street and the adjoining warehouses and resources were built for industrial use, and have continued to foundries, which form the historic core of Pier 70 (see Exhibit support a variety of warehouse, storage, and industrial processes as 7 Land Use Concept for the 20th Street Historic Core). For the ship repair land requirements decreased. Artist-related uses such as Union Iron Works Machine Shop (buildings 113/114), the Plan studios and exhibit spaces are included in this category, which also emphasizes a major public cultural presence to take advantage of could play an important part in the revitalization of Pier 70. its large-scale cathedral like space. This intricate complex of buildings and planned open space will create a strong activity center at Pier 70, creating a destination and showcasing the historic significance of the site. Ancillary retail may also be appropriate outside the historic core to help activate open spaces and to provide ground level amenities to Pier 70 workers.

Exhibit 7: Land use concept FOR THE 20th Street Historic Core The intricate complex of buildings and planned open spaces within the Pier 70 Historic Core along 20th Street will create an iconic activity center at Pier 70, showcasing the historic significance of the site. This exhibit suggests a mix of uses that will activate the core.

4 8 | P ier 7 0 P referred M aster P lan housing developments. Theother is theparcel justsouthof20th of20th Streetis north nearCrane Cove Park, across from existing amount ofresidential development alongIllinois Street. One site dential activities,thePlan provides foralimited someopportunity ment. While thelanduseprogram primarilycallsfornon-resi- and conditionsconducive tosignificantnew residential develop- around–the-clock activities,generallyconflictswithlivingstandards heavy industrialoperationsforshiprepair, whichcaninvolve loud, Pier 70isnotplannedasaresidential district.Thecontinuationof Residential oriented alleysandpassages,Irish Hill. space amenitiesintheformsofcourtyards, smallplazas,pedestrian- Public andpedestrianspacesinternaltoPier 70alsoprovide open restoration where appropriate. enjoyment, interpretation, publicviewing, andenvironmental active water-orientedrecreational activitiesandareas forpassive Park andSlipways Park. Theseareas are largeenoughtosupport Large openspacesare proposed alongtheshoreline inCrane Cove for publicenjoyment andpedestriancirculation through thesite. Plan. thecreation The Plan supports ofa variety ofopenspaces Waterfront parks andopenspaceare prominently featured inthe Water Recreation and Space Open long-term development. interim leaserevenues untillandandfacilitiesare ready for extended periodoftime.PDRusesare well-suited tosupport Redevelopment withinPier 70isexpectedtooccurover an Building 101, looking north on Illinois Street, 2005 Street, Illinois on north looking 101, Building uses. andnon-trust define locationsfortrust with State Landstoresolve issuesthatwill anumberofpublictrust inChapter10,thePortsite. Asdiscussedfurther hasbeenworking userestrictionsuses thatwillmeetpublictrust applicabletothe The successfuldevelopment of Pier 70will require amixofland Trust Considerations Public repair industry. the designandprogram todemonstratecompatibilitywiththeship residences. Proposals forhousingwouldrequire thorough review of tion, are locateduplandawayfrom theshipyard, andare nearother - construc because theyare new closetopublictransit,cansupport Street alongIllinois Street. Theselocationshave beenidentified N A L P R E T S A M D E R R E F E R P 0 7 R E I P 9 4 |

6 LAND USE AND ADAPTIVE REUSE 7 OPEN SPACE AND PUBLIC ACCESS

Illustrative rendering of potential recreational activities at Crane Cove Park

5 0 | P ier 7 0 P referred M aster P lan 3. 2. 1. Objectives provides thefoundationforfollowing objectives. numerous workshops duringthePier 70planningprocess, which accessasahighpriorityinthe publicwaterfront identified new refers asthe toalloftheseefforts Blue Greenway. Thecommunity Greenway openspaceefforts. For thepurposeofclarity, the Plan Trail plan.These regional efforts are furthered bytheCity’s Blue Francisco BayDevelopment Conservation Commission,Bay Water the AssociationofBay Area Governments’ Bay Trail, andtheSan system tiesinwithexistingregional openspaceplans,including forpublicenjoyment.access tothewaterfront The Plan’s openspace ment withinPier 70willprovide toopenupnew theopportunity Environmental remediation, adaptive reuse, andinfilldevelop- CHAPTER 7: OPEN SPACE AND PU AND SPACE OPEN 7: CHAPTER which creates aninter-connectedpaththat linkspublicopen Greenway intothedesignof Pier 70openspace network, Integrate theBay Trail, theBay Water Trail, andtheBlue ofPier 70 history spaces, enjoyment oftheBay, andcelebratereveal therich upland areas open andadjacentneighborhoodstowaterfront and publicspacesthatrecognize historicpassagesandconnect Develop adiverse network andprogram ofparks, paths,roads, opment atPier 70thatissensitive toshiprepair operations. develusers andestablishasenseofidentityfocusfornew - Create of publicopenspacesthatattractadiverse spectrum B LIC ACCESS LIC neighborhoods aswell activitiesintroduced asthenew atPier edge ofPier existingnearbynorthern 70,asapark thatwill serve Crane Cove Park: The Plan envisionsanopenspace, located atthe ways Park tothesouthof shipyard. Crane Cove Park andwest oftheshipyard, tothenorth andSlip- Two parks new are atPier envisionedalongthewaterfront 70: Spaces Open and Parks Shoreline and shown inExhibit 8,Pier 70Open Space Concept. Each majorelementofthisopenspacenetwork isdescribed below space andinternalplazaspathwayswithinthe Pier 70area. In response totheseobjectives, thePlan proposes shoreline open 6. 5. 4. center, boatrental andsupplies,refreshments. water-oriented recreational activitiesandusers,suchasaquatic structures inmajoropenspacestosupport Allow ancillary create shoreline accesswherever possible. resources torespect theindustrialcharacterofPier 70,and withhistoric trian ways,andotherpublicspacesthatinterface Use hardscape pavingandmaterialstoimprove streets, pedes- level ofpublicenjoyment ofthoseopenspaces. ahigh sunlight accessandmicroclimate conditionsthatsupport adjacent totheshoreline openspacesthatprovide comfortable Require sensitivedevelopment designandsiteplacementofnew habitat forwildlife,andprovides accessintoorontheBay. spaces alongtheshoreline, includesareas natural thatsupport N A L P R E T S A M D E R R E F E R P 0 7 R E I P 1 5 |

7 OPEN SPACE AND PUBLIC ACCESS 7 OPEN SPACE AND PUBLIC ACCESS

OPEN SPACE Mariposa Street PLAZAS, COURTYARDS, & PEDESTRIAN WAYS Kneass BAY TRAIL / BLUE GREENWAY CRANE COVE PARK BAY WATER TRAIL 18th Street PEDESTRIAN LINKAGES

SHIP REPAIR (HISTORIC USE) 50

SLIPWAY 4 110 FORMER PIER, WHARF, OR SLIPWAY 68 58 141 127 PIER 70 AREA BOUNDARY 19th Street 109

250 111 Exhibit 8:

Pier 70 Open Space Concept 3rd Street 36 6 Illinois Street 120

The Open Space Concept identifies how 122 108 101 102 104 105 the Bay Trail and the Blue Greenway 103 FERRY TERMINAL 20th Street 123 107 can be extended along the shoreline 19 113 23 through Pier 70. It also illustrates the CENTRAL ENTRY PLAZA 14 two major proposed shoreline parks 114 PLAZA 115 MACHINE BREAKWATER & – Crane Cove and Slipways Parks. 64 21 SHOP PUBLIC ACCESS PIER 116 COURTYARD Irish Hill is preserved as a remnant of 21 the natural landscape of the site and 2 integrated into the proposed Pier 70 IRISH SLIPWAYS PARK Historic District. Irish Hill is an element HILL 12 Visual and Ped. linkage of an internal open space network between Bldg. 12 & Bay must be maintained which is based on the historic char- PG&E

acteristics of the district and includes 22nd Street

a number of courtyards, plazas, and N 0 100 200 300’ passageways.

5 2 | P ier 7 0 P referred M aster P lan design studyforCrane Cove Park improvements. native birdsthat support andwildlifeshould beanalyzed inany environmental restoration. Landscapeandvegetative treatments The largesize of Crane Cove Park provides for anopportunity the slipway, includingtheintroduction ofthebaywaterwithinit. of tohighlightthe visibility andimportance tage ofopportunities creative useofthesefeatures. Park designshouldalsotakeadvan- andidentity shouldguidepark designandencourage time history andstructures areshipbuilding artifacts present. Thisrichmari- inthisparkprominent area, historicartifacts otherindustrialand In additiontoSlip 4andthecranes,whichare themostvisually located withinthefuture openspace. could reuse twohistoricbuildings,Buildings 50and110,thatare Recreational theopenspace activitiesorconcessionstosupport for smallvessels shouldbeincorporatedintothedesignofpark. human-powered watercraft. Designs forproviding wateraccess been identifiedasadesirablelocationforlaunchingorlandingof previous Pier the Crane Cove 70planningefforts, Park sitehas which willincludedesignimprovements forCrane Cove Park. In todevelop the community effort Blue Greenway openspacesystem, with thePier 70planningprocess, thePort a andtheCitysupport network alongSan Francisco’s southeastshoreline. In concert Crane Cove Park isa feature intheBlue Greenway openspace areapublic viewing ofshiprepair operations. ofthesite.Ithistory provides expansiveoftheBay views andasafe a strong relationship withthewaterandactive shipbuilding 70. Thepark area includeshistoric Slip 4anditscranes,creating integrated withadjacentbuildingsandactivities.Theyhelpto The uplandopenspacesincludea variety ofspacesthatare closely Spaces Open and Parks Upland street north-south alongthewesterna new edgeofthepark. open spacefrom theextensionof20thand22ndStreets, andfrom Thepublicshouldbeabletoaccessthis trian accessandviewing. project intothebay, whichmayincludepiers or jettiesforpedes- ments thatexpress thishistoricuse,andincorporateremnants that slipways have beenfilled,thepark designshouldincorporatetreat- and launchingofmanytheshipsbuiltatPier 70. While these of thesite.Theseslipways provided thestageforconstruction four formerslipways thatonceoccupiedthesoutheasternportion Slipways Park: of Thisopenspaceislocatedoneasternportion become a vibrant public place. public vibrant a become to envisioned is 113 Building of south area courtyard Shop Machine The N A L P R E T S A M D E R R E F E R P 0 7 R E I P 3 5 |

7 OPEN SPACE AND PUBLIC ACCESS 7 OPEN SPACE AND PUBLIC ACCESS

provide scale, amenities, pedestrian-orientation, and identity for adjacent buildings as well as the district as a whole. They include:

Irish Hill: Irish Hill, at the southwestern corner of the site, provides a clear remnant of the site’s original shoreline and topography. The Plan calls for the retention of the 1.5-acre sloping site as a visual open space.

Central Plaza: The Plan calls for the creation of a central plaza at the “crossroads” of the shipbuilding and rail operations that occurred on the site, adjoining the activities of Union Iron Works/ Bethlehem Steel to the north, and the World War II complex of structures to the south. The design of the space should provide a symbolic and visual center to the complex, including interpretive displays highlighting the history of the site and its maritime activi- Illustrative rendering of boardwalk and pier extensions at Crane Cove Park. ties. Design should also consider selective planting and vegetation as a counterpoint to the industrial hardscape that will predominate. 20th Street Promenade: 20th Street was the principal entry to Pier Machine Shop Courtyard: The Plan calls for an intimately-scaled 70, where thousands of shipyard employees arrived for work and courtyard, surrounded by the massive brick Union Iron Works congregated. Befitting its more public face, the street is lined by Machine Shop (Building 113/114), the reinforced concrete ware- the stately Union Iron Works Machine Shop (Building 113/114), house structures, and the corrugated steel heavy warehouses to the Bethlehem Steel Administration Building (Building 101), Power- south. Relocation of the steel-framed Risdon Ironworks building house (Building 102), and the original 1896 Union Iron Works (Building 21) to this site from its current location approximately Administration office building (Building 104), visually terminating 700 feet to the east would further define this space. The diverse at the distinctive steam powerhouse (Building 103) with its high materials, shapes, and forms of these structures will give the open smokestack. The Plan provides for the extension of 19th Street space a unique quality. The Plan envisions the courtyard as a into the ship repair facility to provide an alternate route for trucks, central hub of activity, including outdoor dining, musical perfor- which currently travel down 20th Street. With the removal of truck mances, and artist exhibits, spilling out from the adjacent interior traffic, the Plan calls for 20th Street to be restored as the principal spaces. A public passage from 20th Street through the Union Iron entry and ceremonial spine to Pier 70’s historic core - a managed Works Machine Shop could provide access to this space. street that could be closed to traffic for special events. Develop-

5 4 | P ier 7 0 P referred M aster P lan development. forcommercial activitiestospilloutfromopportunities adjacent design shouldbecoordinated withthatof20thStreet andprovide Historic District toPier andanenhancedgateway 70.Theplaza from Illinois Street, creating asuitablesettingforthePier 70 to theUnion Iron Works Machine Shop (Building 113/114) Illinois Street, thepublicviews plazawillpreserve a0.6-acre entry Illinois Street Entry Plaza: At thejunctionof20thStreet and multiple functionsitmayserve. the vehicle lanesofthestreet andbedesignedtoaccommodatethe ment ofthisstreet shouldconsidertheuseofcobbledpavers within will open up views to downtown skyline and Bay Bridge. Bay and skyline downtown to views up open will ParkCove Crane at improvements public of rendering Illustrative power plantsiteisredeveloped. Greenway wouldcontinuesouthoncetheadjacentMirant Potrero fromviews Slipways Park. Ultimately, theBay Trail andtheBlue commercial activitiesenvisionedinthecore, andexpansive bayfront repair activitiesvisiblefrom Crane Cove Park, the culturaland district. Trail userswouldenjoy diverse experiences,includingship Slipways Park, traversing ofPier through theheart 70’s historic uous pedestrianandbicycle circulation from Crane Cove Park to network alsowillenhancetheBlue Greenway toprovide contin- sity ofroutes amongthevarious activitiesanddestinations.This of pedestrianways,promenades, andwalkwaystoprovide adiver- connecting thesediverse openspacesthrough anintegratednetwork Network of Pedestrian Promenades: The Plan promotes N A L P R E T S A M D E R R E F E R P 0 7 R E I P 5 5 |

7 OPEN SPACE AND PUBLIC ACCESS 8 FORM AND CHARACTER OF INFILL DEVELOPMENT

The Machine Shop courtyard area south of Building 113 is envisioned to become a vibrant public place.

5 6 | P ier 7 0 P referred M aster P lan on vacant sites. The second presents general design criteria for for criteria design presents general second The sites. vacant on below. described development new of form addressesthe first The objectives following the development, infill of character and form the to topics related four into organized is the Plan of chapter This future generations. for value lasting of environments sustainable building for responsibility shared the to and construction, of methods and currenttechnology to uses, requirements new of functional the respond to must ment develop infill of character and form The area become. this can toward looks it while what history of layering by the enhanced is environment urban an of richness the The Plan that recognizes whole. a as city livability, to sociability, areathe well as the as in life of quality and parks contribute that waterfront shorelinemajor two with accessible more a and waterfront working a have both will it because tional excep is past. 70 the Pier in than differentway and new a in city the of part a be to potential its and setting waterfront unique the Plan recognizes the time, resources. same At the historic numerous its presence of enduring the well as as docks, and slipways, lines, streets, rail of pattern industrial and Bay urban and the shoreline, landscape the include qualities resources. These historic the of character, the and past by its determined extent, quality, feel and FromPier 70’s standpoint, design urban an great a to is, identity CHAPTER 8: 8: CHAPTER F ORM AND CHARACTER O CHARACTER AND ORM - - 20th Street looking west looking Street 20th Objectives character. district’s historic the with compatible be to designed tively overall sensi Standardsis that development new achieve to are applied interprethow to Infill are the intended Criteria Design Secretary the by guided be Secretary will Standards.The development infill new and buildings historic of The Plan. the rehabilitation of goals required be the will meet to that development new substantial for parameters design and planning define The Criteria Design Infill practices. development sustainable discusses fourth Pier The zoneswithin 70. specific for criteria design entire Planthe area.third forth The sets 2. 1. F

IN landscape features, and waterfront location. location. waterfront features,and landscape Showcasedistrict’s historic the heritage, resources, industrial repair activity. ship ongoing Union the of Iron Works/BethlehemSteel and operations evolution the including processes, shipbuilding industrial reflects the that landscape historic a as Respectdistrict the F ILL DE ILL V ELOPMENT N A L P R E T S A M D E R R E F E R P 0 7 R E I P - 7 5 |

8 FORM AND CHARACTER OF INFILL DEVELOPMENT 8 FORM AND CHARACTER OF INFILL DEVELOPMENT

3. Develop a pattern that reflects the unique building and open space relationships that are characteristic of the historic district.

4. Allow for architectural diversity that is compatible with the historic character of the district. Add new architecture that complements the surrounding resources and promotes activity in the area.

5. Encourage the design of buildings and open spaces that not only responds to Pier 70’s historic qualities but also strengthens connections to Dogpatch and Potrero Hill neighborhoods. Existing Bay view from Building 2 6. Encourage public access and views to the waterfront and connect shoreline parks and promenades with proposed open spaces that are integrated with development.

West elevation of Buildings 117 (1940’s), 115/116 (1917), and 113/114 (1886). Photo shows structures from three different periods of development: WWII, WWI and 1880’s.

5 8 | P ier 7 0 P referred M aster P lan different areas of Pier 70. The development zones are based largely largely developmentzones based differentareas The are of 70. Pier in development of intensity and type the describing for framework 9, Exhibit B programs. development specific support to needed be will ibility The Plan. are the which allowable under flex that anticipates Port Pier for are70, possible massing and heights building in variations and configurations are prescriptive. Otherbuilding they not but development, total of estimate this at werearrive layouts to studied (FAR)repair area. ship excluding the 3:1, of Various pad building an reflecting development, of squareoverall feet Area Ratio Floor gross million 3.7 approximately support would framework This development. new most the support can and vacant largely zoneis resources, one and related historic of areas clusters around ment develop Three identify zones built-out. densely become had 70 1860’s the through World War1940’s, the in complex II Pier when the of days shipbuilding Pierearly of from the 70, development of phases zonesfollow historical the the In presented. part, large Infill the and Criteria Development Design system space open site the with at integrated 70, development Pier infill zonesfor four Insummary, defining for provide studies foundation these the areprovided Appendix in A. studies planning site with associated exhibits DiscussionPlan. and the in promoted benefits public the support to necessary is which at 70, density Pier development increase in allowsignificant a to for differentapproaches analyzed that studies planning and site detailed flow chapter this from presentedin criteria and objectives The uilding uilding Pier 70 Infill Pier70 Development Zones F orm and Intensity Intensity and orm identifies the the Plan’sidentifies - - for new structures within the Pier the area. 70 within structures new for approach the forth set following principles The development. infill new major accommodate to opportunity best the offers it such, As Pier of 70’s majority from the separated Resources. Contributing physically is and today Resources. areavacant largely uting This is as identified have been and filled Non-Contrib were subsequently which slipways, ship former the of location the is area. 70 This Pier the of portion southeast Zone directedthe to is in 4 diagrams these in depicted development infill new the of majority A development. infill for places and ments improve pedestrian street and for locations out calls framework This Plan. the in proposed network space open the of elements and buildings by historic set relationships and groupings geographic on • • • • in the Plan. the in included development economic of density the core,support to from Pier away 70’sZone in located 4, construction historic new accommodate to heights building for Allowflexibility the and Bay.east, the to slipways filled the complex, Building 12 the between connection Recognizehistoric the pattern. circulation historic recall to the network space public the of part as corridors transportation railroad former and Respectexisting Pier to 70. adjacent and within spaces public and parks waterfront to linkages pedestrian and Retainvisual strong N A L P R E T S A M D E R R E F E R P 0 7 R E I P - 9 5 | -

8 FORM AND CHARACTER OF INFILL DEVELOPMENT 8 FORM AND CHARACTER OF INFILL DEVELOPMENT

HISTORIC BUILDINGS Mariposa Street

ZONE 1 Kneass ZONE 2 CRANE COVE PARK ZONE 3

18th Street ZONE 4

OPEN SPACE 50

SLIPWAY 4 SHIP REPAIR (HISTORIC USE) 110 68 58 FORMER PIER, WHARF, OR SLIPWAY 141 127 19th Street 109 PROPOSED BUILDING REMOVAL* 250 111

PIER 70 AREA BOUNDARY 36 6 *NOTE: BUILDING 21 PROPOSED TO BE RELOCATED 120 122 108 101 102 104 105 20th Street 123 103 107 19

113 23

114 14 115 64 21 116 21 2 3rd Street Illinois Street Indiana Street SLIPWAYS PARK Tennessee Street Minnesota Street IRISH HILL

PG&E

22nd Street

N 0 100 200 300’

Exhibit 9: Pier 70 INFILL Development Zones

6 0 | P ier 7 0 P referred M aster P lan plant property to the south is reused. is south the to property plant Mirant the Potrero when how extended be trates streets can power illus diagram The site. the traversed once that tracks rail historic CraneCove Park are from109, derived and Buildings through 113 Irish between connector Hill and north/south the Buildingand 6 street from Irish diagonal the as Hill such and Somelinkages, the of the Plan. in areas identified development infill and spaces, open streets, of system a organize which zones, development between PedestrianLinkages 10, Exhibit zones. the of each in development together Takentogether, tie connections space open and streets, pathways, Maintain Pier 70’s distictive skyline including cranes, drydocks, and ships. and drydocks, cranes, including skyline 70’s Pier distictive Maintain , illustrates the views and circulation patterns patterns circulation and views the illustrates , Visual and - criteria specific to each of the four four zones. the of each to specific criteria followed more district-wide, by detailed design development infill inform to criteria present general to organized been has criteria This construction. new to approach the influence also should district’s waterfront) the at (specifically conditions edge various the In zone. each of addition, character unique the well as as district-wide characteristics historical and architectural the ences refer that construction provide new for typologies approach an shipyard. These the of development historical the reflecting type, construction and period, by function, Buildings vary buildings. industrial of The wide variety 70 a Pier contains Historic District District Wide – Criteria Design Development Infill • • • • counterparts. will weather well and continue to complement their historic as permanent additions to the district using materials that Utilize high levels of craftsmanship. Design new buildings resources. historic on attention focus to serve also can old and new between contrast the that Recognize massing. and proportions, scale, size, features, materials, of terms in ings build historic the with compatible be to buildings new Design historicism. false avoid old; the from buildings new Differentiate purpose. and context, place, time, their reflect to buildings new Design N A L P R E T S A M D E R R E F E R P 0 7 R E I P - 1 6 | -

8 FORM AND CHARACTER OF INFILL DEVELOPMENT 8 FORM AND CHARACTER OF INFILL DEVELOPMENT

• Maintain significant relationships of the historic buildings and features to each other, to their setting, and to the historic context in which they are located.

• Determine the proximity of new buildings to old, and to each other, by the density of surrounding historic buildings. Main- tain spacing between new buildings that is equal to or greater than the distance between historic buildings in the given zone. Design • Incorporate design elements that are common to or compatible with the area’s design vocabulary; employ these treatments in new and creative ways while maintaining compatibility with the historic district.

• Respect the skyline and visual identity of the Pier 70 Historic District, particularly the interplay of visually prominent site features such as the shipyard cranes, floating dry docks, berthed vessels, and buildings along 20th Street.

• Locate parking garage entries and exits to avoid pedestrian alleys and passages to the extent feasible. Scale, Massing, Form, and Materials • Vary the scale, massing, form, and materials to maintain the complexity of the district, while respecting the historic context.

• Consider massing that steps upward and away from historic buildings to emphasize these features and to sculpt new construction while also allowing for greater building height and variation. Top: Note red bricks with contemporary bond pattern. Bottom: A contemporary reinterpretation of a saw-tooth roof.

6 2 | P ier 7 0 P referred M aster P lan Multi-light windows Multi-light • • • • • character of the site. Retain existing and create new streetscapes that reflect the industrial functions. ground level to echo loading doors and reference historic industrialUse punched openings, arched openings, and larger openings at used judiciously, where they are needed to provide transparency.Use of multi-light windows is preferred. Glass curtain walls may be forms in new ways. tors, and Aiken roofs. Consider reinterpreting these historic roof Pier 70 Historic District, including double gables, saw-tooth, moniReference the character-defining roof forms found throughout the tively, use compatible new materials that are industrial in character.construction materials as is found in existing buildings. Alterna Use brick masonry, concrete, corrugated metal, and wood - - Plazas • • • • • • Integrate historic industrial objects as sculptural and interpre and sculptural as objects industrial historic Integrate appropriate. where paving concrete or asphalt monolithic of instead pavers unit Consider functions. active and passive of range a serve can that areas scape hard multi-functional bycreating uses new support also but shipyard’s the reflect Utilizethat materials character, industrial tation of the street. canopies extending from buildings to enhance the pedestrian orien Limit plantings and grass areas and consider utilizing industrial-type material movement features where feasible. Retain and expose rail lines, infrastructure corridors, and historic historic cobblestones along 20th Street. asphalt or concrete paving where appropriate. Consider exposing Consider unit pavers such as cobblestones instead of monolithic N A L P R E T S A M D E R R E F E R P 0 7 R E I P - - 3 6 | -

8 FORM AND CHARACTER OF INFILL DEVELOPMENT 8 FORM AND CHARACTER OF INFILL DEVELOPMENT

tative elements. Reuse of salvage materials from the historic district is highly encouraged.

• Incorporate interpretative displays into plazas and streetscape as appropriate.

• Use plant materials judiciously. Consider using free-standing, above-grade planters that highlight the additive nature of plantings.

Buildings • New buildings along 20th and Illinois Streets should have a substantial character, using Buildings 101, 102, and 104 as models. 20th Street in the future - a pedestrian and bicycle oriented place • Buildings internal to the site should create a foil against which the district’s Contributing Resources can be clearly identified. Buildings at the water’s edge should be designed to address their visibility from greater distances over open water. Buildings located in areas with remnants of historic features, such as slipways, should reflect the historical relationship of these features with the water and upland portions of the property.

• The design of buildings located adjacent to the shoreline must balance environmental considerations and complement historic district character. Avoid excessive use of glass in buildings that directly interface with the Bay or waterfront parks to reduce hazards to birds that may fly into the windows.

The courtyard area south of Building 113 is envisioned to become a vibrant public place.

6 4 | P ier 7 0 P referred M aster P lan Zone 1: zones. four the for criteria well as as plazas, and streetscapes, massing, scale, on Infillprovide direction Criteria Development Design additional Zones - Criteria Design Development Infill 104 and 102, 101, Buildings of elevations Rear Buildings 101, Buildings 102, 104. and • • connection with the surrounding neighborhood. neighborhood. surrounding the with connection Cove Crane Parkand 101 Building a create between to and Street Illinois provide to cohesion along buildings new Design models. as 104 and 102, 101, Buildings character, substantial a have using should and HistoricDistrict Pier 70 the and neighborhoods adjacent the between interface strong a establish Streetto need Illinois will along Newbuildings Illinois Street, North of 20th Street, and the area behind behind the area 20thand Street, of North Street, Illinois and workmanship of the surrounding buildings. buildings. surrounding the of workmanship and design high-quality the with compatibility achieving to approach reflectconscious a must New designed. construction adjacent 20th along buildings architect- Street are existing primarily The Zone 2: Illinois Street, South of 20th Street • • • • • • ibility with the neighboring historic structures. structures. historic neighboring the with ibility compat achieve to textures and details, materials, high-quality use structures, historic existing significant these with Consistent Street. Illinois of side west the Co. on Can Building American the Streets,recognizing while Illinois and 20th of corner northeast the on 101 Building with juxtaposition its of worthy architecture Streetshigh-quality with Illinois and 20th at Pier 70 to gateway the enhance Createand monitors. with gable or hipped, flat, including zone, this to adjacent buildings existing on found forms roof Echo Bay. the to buildings historic these from views maintain possible, extent the to and, tions reareleva existing their to visibility and access maintain to 104 and 102, 101, Buildings of north located buildings new Situate buildings. historic these for backdrop Street 20th from provide pleasing to a visible and 104 and 102, 101, Buildings of north buildings new Design 101. byBuilding established set-back existing the Street Illinois maintain to along buildings new Align N A L P R E T S A M D E R R E F E R P 0 7 R E I P 5 6 | - -

8 FORM AND CHARACTER OF INFILL DEVELOPMENT 8 FORM AND CHARACTER OF INFILL DEVELOPMENT

HISTORIC BUILDINGS Mariposa Street OPEN SPACE

INFILL DEVELOPMENT SITES Kneass CRANE COVE SHIP REPAIR (HISTORIC USE) PARK

PEDESTRIAN & VISUAL LINKAGES 18th Street

VEHICULAR LINKAGES

FORMER PIER, WHARF, OR SLIPWAY 50 SLIPWAY 4 110 Illinois Street PIER 70 AREA BOUNDARY 1 68 58 141 127 19th Street # ZONE NUMBER 109

250 111 Exhibit 10:

Visual & Pedestrian Linkages 36 6 120 This diagram indicates visual and 122 105 108 pedestrian relationships that are 101 102 104 20th Street 123 103 107 desired within and between the Plan’s 19 development zones. They are oriented 113 23

to provide connections between the 3rd Street 114 2 14 4 historic buildings, infill development 115 64 21 areas, and the waterfront. Some of the 116 21 linkages, such as the diagonal between 2 3 Irish Hill and Building 6 and the north/ SLIPWAYS PARK IRISH south connector between Irish Hill and HILL Visual and Ped. linkage 12 Crane Cove Park through Buildings 113 between Bldg. 12 & Bay and 109, are derived from a historic must be maintained PG&E pattern of rail movement within the site. The diagram also indicates how 22nd Street N streets can be extended when the Mirant 0 100 200 300’ Potrero power plant to the south is redeveloped in the future.

6 6 | P ier 7 0 P referred M aster P lan Top: Building 113- 115 west facades, looking northeast. Bottom: Building 101 Building Bottom: northeast. looking facades, west 115 113- Top:Building Zone 3: Their design should acknowledge this function. function. acknowledgethis should design Their Streets. 22nd and 21st of extensions proposed the at seen buildings gateway, secondary a zone form Buildings this in are they first as the • • • • • • and complement the historic corridor along 20th Street. 20th along corridor historic the complement and solidity, massing, the 101 echo Building to of form designed and be should plaza Street the of Illinois south along Newbuildings Street. 20th to 101 Building of role gateway the complements that arrival of providesense a UnionIron Works and 113/114) Shop (Building Machine the of elevation west the of view the maintain Streets will that Illinois and 20th of corner Providesoutheast the on plaza a Street. 20th of end the at 103, Building smokestack, iconic the to access visual Maintain windows, and Aiken roof forms. forms. roof Aiken and windows, steel metal, corrugated as such complex, 12 Building historic the to that relate configurations Feature roof and materials feet). 80 (approximately 2 Building existing the than higher no heights Allowbuilding zone. this in complex industrial the of centerpiece the as prominence its and 12 Building Highlight Building 12 Building Complex N A L P R E T S A M D E R R E F E R P 0 7 R E I P 7 6 |

8 FORM AND CHARACTER OF INFILL DEVELOPMENT 8 FORM AND CHARACTER OF INFILL DEVELOPMENT

Zone 4: Former Slipways and Waterfront Buildings in Zone 4 form an edge along the water. This edge should be porous, so that visual and physical connections between site and water are maintained. The design of new buildings in this zone forms the southern interface with the Mirant Potrero power plant site.

• Maintain visual and physical connections to the water by allowing views through buildings, as well as pedestrian corridors and pass-throughs • Design the ground floors of the buildings to complement and interact with pedestrian ways that connect the Bay to the inland portions of the site. Consider locating the most publicly- oriented functions of buildings on the ground floor and incor- porating active ground level uses wherever possible. Aerial view of slipways 5-8 • Design the new buildings to be visually prominent from the water, yet compatible in design with the surrounding historic Sustainable Development Practices fabric. The west facades of these buildings should reference the New and historic buildings need to meet the pressing environ- adjacent Building 12 complex, while the eastern facades should mental challenges of the 21st century related to climate change, be oriented to the open space and the Bay. The south facades sustainability, energy efficiency, water conservation and quality, should provide a coherent interface between Pier 70 and future and conservation of natural resources. Due to the waterfront development at the Mirant Potrero power plant site. setting of this project and its fill history, the Port, in consultation with its development and regulatory partners, will conduct further • Use the orientation of walkways, entries, and windows to analysis of appropriate climate adaptation strategies to respond to emphasize the historic connection between the Building 12 the impacts of projected sea level rise and associated potential flood complex, the slipways, and the waterfront. risks. • Buildings should be designed and oriented to protect micro- climate conditions to support a high level of public access and enjoyment of Slipways Park.

6 8 | P ier 7 0 P referred M aster P lan water Design Guidelines. Design water Port’s the with compliance and review to subject be will ties Storm facili new or rehabilitated into incorporated measures management stormwater. manage and capture to Stormwater means best the as serve may design rooftop building vegetation, planted limit that criteria district historic and fill, contaminated of presence potential the site, the of conditions subsurface unique to Due runoff. water storm managing is concern sustainability site-based key A Plan. Port’s the with consistent development, new of Action Climate impacts footprint carbon reduce to traveled miles vehicle and emissions, usage, vehicle of reduction and systems, conservation and generation energy alternative on-site The encourage will Port Standards. Secretary the with consistent is that manner a in district historic the improvements into sustainability integrate successfully to effort an in analysis this in objectives preservation historic its prioritize will The goals. Port address to sustainability Port and City and district, historic the to apply standards how these on focus particular a have will analysis This project. sustainable a achieve to direction provide may equivalent or standards New and Construction ment Neighborhood Develop LEED Green U.S. Council. Building bythe developed Green System, (LEED) Rating Design Building Environmental and Energy in Leadership the of applicability the determine to partners development The its with work will Port - - - - Bottom: Solar Power and Wind Energy Generation Energy Wind Powerand Solar Bottom: Top:Roof Green N A L P R E T S A M D E R R E F E R P 0 7 R E I P 9 6 |

8 FORM AND CHARACTER OF INFILL DEVELOPMENT