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One Rincon Hill

Coordinates: 37°47′09″N 122°23′32″W / 37.785778°N 122.392139°W / 37.785778; -122.392139
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One Rincon Hill South Tower
In March 2021
One Rincon Hill is located in San Francisco
One Rincon Hill
Location within San Francisco
One Rincon Hill is located in California
One Rincon Hill
One Rincon Hill (California)
One Rincon Hill is located in the United States
One Rincon Hill
One Rincon Hill (the United States)
General information
TypeResidential condominiums
Location425 1st Street
San Francisco, California
Coordinates37°47′09″N 122°23′32″W / 37.785778°N 122.392139°W / 37.785778; -122.392139
Elevation32 m (105 ft)
Construction startedNovember 10, 2005[1]
Completed2008
Opened2008
CostUS$300 million[2]
Height
Roof640 ft (200 m)
Technical details
Floor countabove ground: 60
below ground:
Lifts/elevators4
Design and construction
Architect(s)Solomon Cordwell Buenz
DeveloperUrban West Associates
Structural engineerMagnusson Klemencic Associates
Main contractorBovis Lend Lease
References
[3][4][5][6]
The Harrison
North Tower in August 2015
Map
Alternative namesOne Rincon Hill North Tower, Tower Two at One Rincon Hill
General information
TypeResidential condominiums
Location425 1st Street
San Francisco, California
Coordinates37°47′11″N 122°23′31″W / 37.78636°N 122.39201°W / 37.78636; -122.39201
Construction started2012[7]
Completed2014[8]
Height
Roof541 ft (165 m)[A]
Technical details
Floor count50[A]
Design and construction
Architect(s)Solomon Cordwell Buenz
DeveloperPrincipal Real Estate Investors and Urban Pacific Investors
Main contractorWebcor Builders
References
[5][9][10][11]

One Rincon Hill is an upscale residential complex on the apex of Rincon Hill in San Francisco, California, United States. The complex, designed by Solomon, Cordwell, Buenz and Associates and developed by Urban West Associates, consists of two skyscrapers that share a common townhouse podium. It is part of the San Francisco skyline and is visible from several parts of the Bay Area.

The taller tower, One Rincon Hill South Tower, was completed in 2008 and stands 60 stories and 641 feet (195 m) tall.[A][B] The shorter tower, marketed as Tower Two at One Rincon Hill, was completed in 2014 and reaches a height of 541 feet (165 m) with 50 stories.[A][9] The South Tower contains high-speed elevators with special features for moving residents effectively, and a large water tank designed to help the skyscraper withstand strong winds and earthquakes. Both skyscrapers and the townhomes contain a total of 709 residential units.

The building site, located right next to the western approach of the San Francisco–Oakland Bay Bridge, formerly contained a clock tower. The clock tower was demolished shortly after the city approved the One Rincon Hill project. Construction of the townhomes and the South Tower lasted from 2005 to 2008, but was stopped for brief periods of time due to seismic concerns and a construction accident. As the South Tower neared completion, it generated controversy concerning view encroachment, high pricing, and architectural style.[12]

Description

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Location

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The complex is on a 1.3 acres (0.53 ha) parcel on the apex of the Rincon Hill neighborhood.[13] The site is bounded by Harrison Street to the northwest, the Fremont Street exit ramp to the north, the approach to the Bay Bridge (Interstate 80) on the east, and the 1st Street entrance ramp to the southwest.[14][15]

Developer and architect

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Solomon, Cordwell, Buenz and Associates, a Chicago architectural firm, designed the complex. The developer of this complex is Urban West Associates, headed by Mike Kriozere.[2] The developer's headquarters are in San Diego, although all its highrise projects over 14 stories are in the San Francisco Bay Area.[16] The Rincon Hill complex is the developer's second project in San Francisco, with the first being ONE Embarcadero South, a residential complex near One Rincon Hill and across from Oracle Park.[17] According to the developer the total cost of the Rincon Hill project was US$290 million, rising to over US$310 million in 2009.[2][18]

Architecture

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One Rincon Hill, viewed from the south in 2015

The complex consists of two buildings joined at the base by a row of townhomes. The South Tower and North Tower rise 641 ft (195 m) and 541 ft (165 m) above the corner of Fremont and Harrison streets, respectively.[A][B] The North Tower has 50 floors, while the South Tower has 60.[A][B][9] Because of the sloped Rincon Hill site, the South Tower's lobby floor or the 1st Street entrance is on the sixth floor, and the first floor is five levels underground from the 1st Street entrance.[19] It is also one of the tallest all-residential towers west of the Mississippi River.[13][20][21] Its location near the apex of Rincon Hill, at an elevation of over 100 feet (30 m),[11] gives it an apparent height of well over 700 feet (210 m), making it one of the biggest additions to the San Francisco skyline in over 30 years.[3][22]

Both the north tower and the south tower of the Rincon Hill complex bear a resemblance to The Heritage at Millennium Park in Chicago, a building of a similar height to the south tower also designed by Solomon, Cordwell, Buenz and Associates.[23] The architectural style for both buildings of the Rincon Hill complex is late-modernist.[3][9] The three sides of the South Tower facing east, north, and west have a linear glass curtainwall.[3][22] The North Tower has a similar design, except it is shorter and the curved aluminum and glass side faces northwest.[9][22] Both skyscrapers of the Rincon Hill project contain an oval-shaped crown housing mechanical equipment.[22][24][25]

Weather beacon

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The crown of the South Tower contains a band of 25 LED floodlights that remain lit all night. Each LED light consumes little energy and has a lifetime of 40,000 hours. These lights are used to signal the weather, just like the lights on the Berkeley Building in Boston. The crown glows red if warmer weather is in the forecast. A blue crown signifies that cold weather is expected soon. Green means that there is at least a 50 percent chance of rain. Amber indicates that the weather will remain unchanged. This is the San Francisco Bay Area's first weather beacon. The crown began lighting up on December 8, 2008.[26]

Earthquake engineering

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To support the 60 story condo tower, One Rincon Hill South Tower has a massive 4-metre (13 ft) thick pile-raft foundation embedded deep into serpentine rock. Although some engineers view serpentine rock with suspicion, there are massive structures, such as the Golden Gate Bridge, that have foundations on rock that is largely serpentine.[27] Rising out of the foundation are the concrete core and large, tall columns of steel-reinforced concrete called outriggers. The core is attached to the outrigger columns by diagonal, steel buckling-restrained braces which are designed to dissipate energy during an earthquake through controlled hysteretic behavior. This type of advanced seismic system performs in a manner similar to that of shock absorbers. The braces are also encased in concrete and steel to further mitigate risk of buckling and strength loss. Also of note is the controlled-rocking system which features vertical post-tensioning which runs the height of the building through ducts within the reinforced-concrete shear-wall core. Many of these technologies used in the One Rincon Hill South Tower have never before been applied in the United States.[27][28]

Water tanks

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At the top of the building is a large tuned sloshing damper[29] which holds up to 50,000 gallons (189,250 litres) of water and weighs 416,500 pounds (185,440 kg).[21][28] A similar 50,000 gallon (189,250 liter) tank is located in the basement for firefighting purposes.[21] There are two liquid damper screens in each tank to control the flow of the water to counter the sway from the powerful Pacific winds, which can reach hurricane-force.[27]

Elevators

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The Two Towers are composed with Different Elevator Installations. The South Tower elevators were installed by Mitsubishi Electric United States with one service and three passenger elevators. The elevators are the second fastest in the city of San Francisco, second only to those in 555 California Street and tied with those in 555 Mission Street.[30] The elevators of the South Tower can travel from the ground floor to the 61st floor (the mechanical level) in only 26 seconds to speed passenger traffic flow. This means the elevators can travel about 1,200 vertical feet (366 m) in a minute. The elevators have artificial intelligence control systems that figure out passenger traffic patterns and dispatch the three elevators to handle passenger needs accordingly. The bottom of each elevator shaft has a cylinder filled with hydraulic oil to stop a falling elevator without injuring the passengers inside.[31] The North Tower elevators were installed by Otis Worldwide Corporation with SkyRise Motors and serving 49 floors. The service elevator serves all of the floors, as well for the 50th floor (the mechanical level).

Residences

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The entire project will provide 695 condos in the highrises and 14 townhomes at the foot of the towers for a total of 709 units.[32] 376 of those condo units are located in the South Tower and the North Tower contains the other 319 units.[2][6] Because of their height, both towers will offer spectacular vistas of the surrounding landscapes.[22] There are 26 different floor plans for the 695 condos which are financially beyond the reach of many citizens residing in San Francisco.[32] The units vary greatly in price from US$500,000 to US$2.5 million[18][33] depending on view and the size of the unit that range from 600 to 2,000 sq ft (56 to 186 m2).[13] The project opened up a sales office on June 16, 2006, and even before the opening, condo-buyers placed deposits for 130 of the South Tower's 376 condo units in a selling spree.[34] The Sales Center is rumored to have cost US$2 million to build.[13] The condo units in One Rincon Hill South Tower sold well for an unfinished building at that time.[33] The first residents began moving into the South Tower in February 2008.[6][35]

History

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South tower in mid-July 2007

Prelude

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The 183 ft (56 m) triangle-section clock tower, owned by Union 76 and then Bank of America, was built on the site circa 1955.[15] After the Transbay Plan the city changed the zoning in the Rincon Hill neighborhood and raised height limits.[36] A second version of One Rincon Hill was proposed in response to these zoning changes, in which the height was increased to 60 stories.[37] The second version project was approved by the city on August 4, 2005.[38] Before construction of One Rincon Hill, the clock tower was razed to make way for the construction of the towers.[38][39]

South Tower

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Three months after San Francisco approved the project, construction began on the South Tower with a groundbreaking ceremony on November 10, 2005. The South Tower was the second-tallest tower under construction in San Francisco.

July 2006 construction accident

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Construction site and tower crane as of July 16, 2006, a few days before the accident.

On July 21, 2006, a metal construction deck collapsed sometime around 10:45 AM (UTC−7). Two carpenters and two ironworkers were injured when they fell about 30 feet ( 2.5 stories ) feet (6 m) along with the deck, sending all four men to the hospital. Three of the men were released that afternoon; one of the ironworkers was kept at the hospital with his leg broken in two places, a broken ankle, and a broken shoulder.[40]

Progress

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The South Tower was completed in September 2008, with all residential floors ready for residents.[41] As of, April 2009, 70% of the South Tower's 376 luxury units and 14 townhouses had been sold.[42] Because of the occupancy rate and low profits so far, the developers had initially refused to pay $5.4 million in development fees that would be spent on rent subsidies, job training programs and community development in the South of Market area. However, the developers finally agreed to pay the city.[42]

  • South Tower under construction in 2007
    South Tower under construction in 2007
  • South tower in 2007
    South tower in 2007
  • The South Tower, as viewed from the Bay Bridge, westbound, looking towards the San Francisco hills in 2007
    The South Tower, as viewed from the Bay Bridge, westbound, looking towards the San Francisco hills in 2007

North Tower

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North tower under construction in June 2013

The remaining north tower was scheduled to begin construction after summer 2008 and be completed in 2009.[41] Originally, construction was supposed to commence in January 2008.[24][43][44] Later, the developer mentioned construction was going start in March, but the construction firm wasn't selected at that time. After March, the developer said construction was going to start in May 2008. However, following the worldwide financial crisis of the late summer and fall of 2008, the project's developers announced that construction of the second tower was indefinitely on hold. With improving economic conditions in the city, construction started on this tower in October 2012;[45] its first residents moved in August 2014.[8] The north tower was later renamed The Harrison.[46]

Criticism

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With condo prices set from US$500,000 to US$2 million, many critics have noted that the One Rincon Hill complex is too expensive for most San Franciscans.[13][32] With the total initial development cost of US$290 million, the average development cost per unit with 709 units total is approximately US$409,000. However, the developer Urban West Associates has contributed a total of US$38.5 million to funds like the South of Market Community Stabilization Fund in order to address this concern.[32]

Notes

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A. a b c d e f g This article measures the building height and floor count of both towers from the corner of Fremont and Harrison Streets.
B. a b c d e Building height and number of floors varies depending on the measuring location and whether the five underground levels, the lobby and the topmost two mechanical levels are included in the measurement. Sources like the corresponding SkyscraperPage thread list the tower at 641 feet (195 m) tall with 60 floors, leaving out the topmost two levels. Source. However, the San Francisco project rundown thread on the same site lists the tower at 641 feet (195 m) with only 55 floors, omitting the five underground and topmost two non-residential levels. Source. Emporis lists the building at 605 feet (184 m) and omits the lobby level in addition to the seven nonresidential levels from the floor count, leading to a count of 54 floors. Source.[usurped] Another site gives no height figure but mentions the tower has 62 levels. Source. At least one San Francisco Chronicle article states the building is 641 feet (195 m) tall with 62 levels, which includes the seven nonresidential levels. Source. However, another Chronicle article uses a different measuring location, stating that the south tower has 605 feet (184 m) and 60 floors. Source.

See also

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References

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  1. ^ Nolte, Carl (November 10, 2005). "Officials break ground for new condo towers at foot of Bay Bridge". The San Francisco Chronicle. Retrieved September 24, 2007.
  2. ^ a b c d Dineen, J.K. (April 11, 2008). "Developer Kriozere scores loan for second tower of One Rincon Hill". The San Francisco Business Times. Retrieved April 21, 2008.
  3. ^ a b c d "One Rincon Hill, South Tower". Emporis. Archived from the original on March 15, 2016. Retrieved September 23, 2007.{{cite web}}: CS1 maint: unfit URL (link)
  4. ^ "One Rincon Hill - South Tower". SkyscraperPage.
  5. ^ a b One Rincon Hill South Tower at Structurae
  6. ^ a b c Nolte, Carl (March 7, 2008). "One Rincon residents are moving in". The San Francisco Chronicle. Retrieved April 21, 2008.
  7. ^ Dineen, J.K. (July 16, 2012). "Construction to start today on second One Rincon Hill tower". San Francisco Business Times. Retrieved February 12, 2013.
  8. ^ a b "Tower Two at One Rincon Hill Welcomes Its First Residents; 25 Percent of Residences Already Pre-Leased" (Press release). The Registry. August 22, 2014.
  9. ^ a b c d e "One Rincon Hill, North Tower". Emporis. Archived from the original on September 23, 2007. Retrieved September 23, 2007.{{cite web}}: CS1 maint: unfit URL (link)
  10. ^ "One Rincon Hill - North Tower". SkyscraperPage.
  11. ^ a b "COMMENTS AND RESPONSES ON DRAFT EIR: Transit Center District Plan and Transit Tower" (PDF). San Francisco Planning Department. September 28, 2011. p. C&R-38. Retrieved November 15, 2013. One Rincon Hill is built at an elevation of approximately 107 feet, San Francisco Datum (SFD), meaning it has an "effective" elevation at its roof of approximately 712 feet.
  12. ^ Carl Nolte (August 13, 2007). "Towering opinions on Rincon high-rise, from 'elegant' to 'atrocity'". The San Francisco Chronicle. Retrieved September 24, 2007.
  13. ^ a b c d e Nolte, Carl (June 14, 2006). "ONE RINCON: Building a High-Rise CITY'S SKYLINE MOVING UPSCALE Condos in the high-rise towers will start at $500,000 -- it's pricey, but there is a killer view from the top". The San Francisco Chronicle. Retrieved September 24, 2007.
  14. ^ "Google Maps". Google Maps. Retrieved August 11, 2008.
  15. ^ a b "Clock Tower Building". Emporis.com. Archived from the original on February 20, 2013. Retrieved September 24, 2007.{{cite web}}: CS1 maint: unfit URL (link)
  16. ^ "Urban West Associates". Emporis. Archived from the original on February 18, 2007. Retrieved April 21, 2008.{{cite web}}: CS1 maint: unfit URL (link)
  17. ^ "One Embarcadero South". Emporis.com. Archived from the original on February 16, 2007. Retrieved April 21, 2008.{{cite web}}: CS1 maint: unfit URL (link)
  18. ^ a b Nolte, Carl (June 14, 2006). "ONE RINCON: Building a High-Rise: City's Skyline Moving Upscale Condos in the High-Rise Towers Will Start at $500,000". The San Francisco Chronicle. Retrieved September 24, 2007.
  19. ^ "Picture of One Rincon Hill South Tower floors - One Rincon Hill South Tower thread - Post 327". Socketsite.com and SkyscraperPage.com. Retrieved September 24, 2007.
  20. ^ "San Francisco One Rincon Hill Tallest Residential Tower". KRON 4 and YouTube. Archived from the original on December 21, 2021. Retrieved September 23, 2007.
  21. ^ a b c Nolte, Carl (December 29, 2007). "One Rincon tower features water tank on top to counteract wind". The San Francisco Chronicle. Retrieved December 29, 2007.
  22. ^ a b c d e One Rincon Hill Aerial Tour, found on One Rincon Hill's website Archived May 11, 2008, at the Wayback Machine
  23. ^ "The Heritage at Millennium Park". Emporis.com. Archived from the original on April 15, 2004. Retrieved September 24, 2007.{{cite web}}: CS1 maint: unfit URL (link)
  24. ^ a b "One Rincon Hill - North Tower". SkyscraperPage.com. Retrieved September 24, 2007.
  25. ^ "One Rincon Hill - South Tower". SkyscraperPage.com. Retrieved September 24, 2007.
  26. ^ Nolte, Carl (December 8, 2008). "Lights atop One Rincon Hill signal S.F. weather". San Francisco Chronicle. pp. B-1. Retrieved December 13, 2008.
  27. ^ a b c Nolte, Carl (July 2, 2006). "Tall, skinny ... stable". The San Francisco Chronicle. Retrieved December 15, 2013.
  28. ^ a b "San Francisco One Rincon Hill Earthquake Proof". KRON4 and YouTube. Archived from the original on December 21, 2021. Retrieved September 23, 2007.
  29. ^ Robinson, J.; Gamble, S.; Myslimaj, B. (2007), "Supplemental Damping and Using Tuned Sloshing Dampers", Structure, Reedsburg, WI: C3 Ink, archived from the original on May 30, 2012, retrieved June 22, 2012
  30. ^ "555 Mission Street Specifications". Archived from the original on November 6, 2006. Retrieved September 26, 2007.
  31. ^ Nolte, Carl (December 9, 2007). "Elevators with brains". The San Francisco Chronicle. Retrieved December 9, 2007.
  32. ^ a b c d "One Rincon Hill brings new grace to Bay area". Newcity Skyline. February 2, 2007. Archived from the original on September 27, 2007. Retrieved September 24, 2007.
  33. ^ a b Nolte, Carl (April 17, 2007). "Dance of the concrete San Francisco: Pouring the floors for the 600-foot (180 m) One Rincon Hill tower involves a blend of high technology and old-fashioned muscle -- it is also a race against the clock". The San Francisco Chronicle. Retrieved September 24, 2007.
  34. ^ Gardner, Jim (June 16, 2006). "Condo units fly out door, before doors even open". The San Francisco Business Times. Retrieved September 24, 2007.
  35. ^ J.K. Dineen (February 29, 2008). "New residents unpack at S.F. condo towers: It can be lonely at the top". The San Francisco Business Times. Archived from the original on August 16, 2016. Retrieved March 2, 2008.
  36. ^ Herel, Suzanne (February 4, 2004). "SAN FRANCISCO". The San Francisco Chronicle. Retrieved December 15, 2013.
  37. ^ King, John (April 18, 2005). "Rincon Hill on the rise". The San Francisco Chronicle. Retrieved September 24, 2007.
  38. ^ a b "Otto Versand". Emporis. Archived from the original on March 7, 2016. Retrieved September 23, 2007.{{cite web}}: CS1 maint: unfit URL (link)
  39. ^ John King (September 29, 2005). "The city has a chance to create a great neighborhood on Rincon Hill". The San Francisco Chronicle. Retrieved September 24, 2007.
  40. ^ Buchanan, Wyatt; Cabanatuan, Michael (July 21, 2006). "4 construction workers injured in deck collapse". The San Francisco Chronicle. Retrieved September 23, 2007.
  41. ^ a b "One Rincon Hill Newsletter, Spring 2008". Archived from the original on May 6, 2008. Retrieved May 9, 2008.
  42. ^ a b Selna, Robert (April 22, 2009). "Builder changes tune on paying One Rincon fees". The San Francisco Chronicle.
  43. ^ Dineen, J.K. (July 2, 2007). "Work to start on second Rincon tower this year". The San Francisco Business Times. Retrieved August 17, 2007.
  44. ^ "One Rincon Hill: An Official Update And A Few Confirmed Facts". Socketsite. Retrieved November 1, 2007.
  45. ^ "One Rincon Hill - North Tower". Retrieved January 15, 2013.
  46. ^ "Ken Fulk-Designed The Harrison Ready to Launch in Rincon Hill". Curbed SF. December 7, 2015. Retrieved December 30, 2015.
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