PNDANNIVERSARY Engineers, TIMELINE Inc.

27 1979: The company is founded by Roy Peratrovich, Jr. and Dennis Nottingham, two civil/structural engineers, as Peratrovich & Nottingham, Inc. (P&N). Paul Reynolds, a silent stockholder, helps incorporate the company. Peratrovich and Nottingham met each other in the 1960s while working together at the “We were a Alaska Department of Highways. They designed team together, multiple pioneering across Alaska and and we did were already being published for innovative some wonderful design solutions in Alaska – Peratrovich for things. Most welded steel for friction and torsion dolphins; brilliant man I Nottingham for pressure-treated timber floats k n o w.” standardizing Alaska boat shelters. ~Peratrovich Their prize bridges pre-P&N: on Nottingham

Cordova Ferry Transfer : Peratrovich Gulkana River Bridge: Nottingham designed designed the first modern, all-steel, all-welded the 400-foot tied-arch pipeline bridge using steel orthotropic bridge, replacing timber dolphins piles driven into permafrost, setting a new arctic and setting a new marine engineering standard. engineering standard.

Hurricane Gulch Bridge: Nottingham performed all seismic calculations by hand – with boxes of pencils and a slide rule – for this 551-foot-long that crosses Hurricane Creek and the Canyon divide, 254 feet aboveground. “I spent many sleepless nights wondering if the Hurricane Gulch Bridge would withstand an earthquake, and I went over those calculations over and over again. Several years after that bridge was built, when I had a computer program to analyze the design of the Sitka Harbor Bridge, I went back and checked all of my calculations on the Hurricane Gulch Bridge and found out they were right. Four years after it was completed, I knew the bridge would work.” ~Dennis Nottingham, Alaska Business Monthly, 1986 28 Knik-Matanuska Rivers

29 Sitka Harbor Bridge: In 1969, Peratrovich, the design squad chief, and Nottingham, who performed design check and structural analysis, designed the country’s first cable-stayed vehicular crossing bridge, the John O’Connell Memorial Bridge. It was the third time Peratrovich (Susitna River) and Nottingham (Copper River) had proposed a cable-stayed bridge in Alaska. The bridge design effort won a national award and piqued the curiosity of engineers nationwide. “The early Alaska Highway The Sitka Harbor Bridge Department administrators are to be design team: Bill Gute, commended for allowing a new idea Roy Peratrovich, to surface which has led others to use Dennis Nottingham, more advanced methods to design and Alaska Department and build the many beautiful and of Highways aesthetic cable-stayed bridges now Commissioner gracing the USA.” Robert Beardsley. ~Dennis Nottingham, White Paper titled “The Evolution”

Yukon River Bridge: Nottingham’s innovation included unprecedented aboveground twin oil and natural gas pipelines. The low-temperature steel design is believed to be the first in the world to incorporate modern seismic loading calculations. “If the world was to end, that would be the flood. We designed it so that if an aircraft flew into it and cut one girder in half, it would still stand. After the 2002 (7.9) earthquake, everybody ran up to the Yukon River Bridge to see the damage. None. That bridge will be there 200 years from now.” ~Dennis Nottingham, Northern Innovators Hall of Fame, 2015 30 1980: Peratrovich & Nottingham contracts with Atlantic Richfield Company (ARCO) Alaska, Inc., providing design concepts and crossing alternatives for the Kuparuk River Module Crossings in support of the Kuparuk oil field expansion.

• Peratrovich & Nottingham designs its first permeable wave barrier (right) at a U.S. Coast Guard facility in Oregon. (Nottingham, far right, performing an in-house wave test.) • Associated Pile and Fitting Corp. “They were always conical tips are used on the Homer so curious. ... Dock fender system improvements That was their nature. ... project in Homer, Alaska. Peratrovich & It was a really Nottingham adds structural fins to the creative atmosphere.” pipe piles to increase load bearing and ~Bill Gunderson on pullout resistance. (The headline is from Nottingham a 1980 edition of Piletips magazine.) and Peratrovich

1981: Brent Drage (pictured at far right with Peratrovich and Nottingham), a civil engineer with extensive hydrological experience, becomes a stockholder, and the company’s name is changed to Peratrovich, Nottingham & Drage, Inc. (PN&D). • PN&D provides value engineering to the City of Cordova, Alaska, for its small boat harbor expansion project, replacing the Alaska Department of Transportation & Public Facilities (DOT&PF) design. • PN&D begins development of its OPEN CELL SHEET PILETM technology. The first OPEN CELL structure was designed by P&N and completed for ARCO to support and protect a bridge servicing the North Slope oil fields. (PND disclaimer: PND has spent years testing, observing, and refining the OPEN CELL SHEET PILE {OCSP} system and holds all related information to be proprietary. The OCSP system is patented, holding U.S. Patent No. 6,715,964 B2; U.S. Patent No. 7,488,140 B2; and U.S. Patent No. 8,950,981 B2.) 1982: PN&D wins three Alaska Construction & Oil Heavy Construction and Engineering Awards, including first place for its Kuparuk River Module Crossings (pictured at right) on the North Slope, the company’s first major awards. 31 1983: PN&D trademarks the SPIN FINTM name for the new piledriving technology. • PN&D provides value engineering to the City of Homer, Alaska, for its small boat harbor expansion project, replacing the DOT&PF design.

1984: Designed in 1982, constructed in 1983, and awarded in 1984, the Tanana River OPEN CELL SHEET PILETM bulkhead wins the Alaska Construction & Oil Project of the Year Award. Built at the confluence of the Tanana and Nenana rivers for the City of Nenana, Alaska, the OCSP bulkhead is the company’s first of its proprietary award-winning and internationally acclaimed design. • PN&D acquires Tongass Engineers, a Juneau engineering firm, which eventually becomes PND’s Juneau office.

*Anchorage Daily News

1985: PN&D provides design, including first use of its SPIN FINTM technology, for the Seward Coal-Loading *Alaska Construction & Oil, 1986 Facility, linking the Usibelli Coal Mine in Interior Alaska to the Korea Electric Power Company, Alaska’s first hardrock mineral export deal, which was nine years in the making.

32 1986: PN&D designs its first berm breakwater. Brent Drage designs an innovative solution to an engineering challenge in the Pribilof Islands, Alaska, that attracts international attention. “It is unique for its use of a *Engineering News-Record, 1988 berm design in the most severe conditions under which no such breakwater design has yet been used; for the extent of physical modeling – done by five laboratories in several nations; for use of a worst-case storm criteria, based on the depth-limited site and the extremely high frequency of severe storms; and for the consideration of 20- to 50-second wave periods in design and modeling. The low- cost/high-stability advantage anticipated for the St. George project indicates that communities served by underdeveloped ports around Alaska, and the world, can now afford to upgrade them using locally available materials.” ~ PND Principal Alan Christopherson, Alaska Construction & Oil, November 1986

• The first GUNDERBOOMTM is used in Homer, Alaska, where a harbor-dredging project threatened to dump potentially deadly sediment on fish and crabs. Bill Gunderson, PN&D engineer, develops *The Daily Astorian the barrier calling upon his experience in the commercial fishing business. PN&D patents the technology. Three years later, the GUNDERBOOM is the most successful and widely deployed boom system following the Exxon Valdez accident that spilled 11 million gallons of oil in Prince William Sound, Alaska. 33 • PN&D wins two Lincoln Arc Welding Awards for its fast-tracked Alaska Railroad Bridge project (top left) at East 76th Avenue in Anchorage, Alaska, and its coal car unloading system for the Seward Coal-Loading Facility project (top right) in Seward, Alaska. • A PN&D report, “Cost to the Public Due to Use of Corrosive Deicing Chemicals,” is published by the U.S. Department of Transportation Federal Highway Administration. 1987: PN&D introduces geotextiles for use in roads and retaining walls (Harris Harbor, Juneau, Alaska, at left).

1988: Roy Peratrovich, Jr. co-founds Architects & Engineers Insurance Company (AEIC), the nation’s only architect- and engineer-owned insurance company. • PN&D opens its office in Seattle, Washington. • PN&D writes “A Guide to Maintenance and Operations *Alaska Construction & Oil, 1987 of Small Craft Harbors” for the DOT&PF Standards Division in Juneau, Alaska, replacing the older version. The text is widely distributed throughout the state and the Lower 48.

34 1989: PN&D, on its 10-year 1994: PN&D designs a anniversary, wins two Lincoln Arc geotextile (GT) retaining Welding Awards for its mooring wall using recycled dolphins design in Dutch Harbor, tires to appease Alaska’s Alaska, and its welded steel box responsibilities mandated by girder bridge in Wainwright, the 1991 Intermodal Surface Alaska. Transportation Efficiency Act. • According to the Alaska Journal The GT wall provides a low- of Commerce, as of December cost method of reducing tire 1989, 475 SPIN FINTM piles stockpiles on a national scale. had been installed in Alaska “This is exactly what we should and Washington, representing be doing. We’re trying to change nearly $2M in savings, and 38 the way people view wastes … OPEN CELL SHEET PILETM and help them to be innovative structures had been built, with with waste materials.” nearly 16,000 sheet piles driven ~David Wigglesworth, and millions of dollars saved by Department of Environmental project owners. Conservation, Anchorage Daily News, 1994 • PN&D engineer Bill PN&D wins a national-best four awards from the Lincoln Arc Gunderson, inventor of the 1995: Welding Foundation to boost its record total to 14. The winning projects GUNDERBOOMTM, serves as were an operations and emergency response building and offshore marine engineering manager for Exxon dock for the oil spill response facility in Valdez, Alaska; a pipe restraint and Veco tower at the Kuparuk oil field on the North Slope, Alaska; the Endicott during box girder bridge in the Beaufort Sea on the North Slope; and repair the Exxon work on highway bridges spanning the Knik and Matanuska rivers in Valdez Matanuska-Susitna Borough, Alaska. oil spill “The reason we win, they tell us, is because we have such unique and cleanup efforts in Valdez, interesting projects in Alaska.” Alaska. ~Dennis Nottingham, Anchorage Daily News, 1996 1990: PN&D wins the Lincoln Arc Welding Best of Program Award for its ship transfer system in Seward, Alaska. • PN&D develops a hatchery protection response plan, as well as design of response bases in Prince William Sound, Alaska, for the Alyeska Pipeline Service Company. 1991: PN&D wins a Lincoln 1996: Arc Welding Award for its vehicle PN&D and pedestrian access bridges for wins the Magone Marine’s barge mooring at American Institute Dutch Harbor in Unalaska, Alaska. of Steel Construction 1992: PN&D wins the Alaska and National Steel Bridge Governor’s Exporter of the Year Alliance Prize Bridge Award in the Award for its Unalaska Marine special purpose category for its Center project at Dutch Harbor in Tudor Road Trail Crossing Unalaska, Alaska. in Anchorage, Alaska. 1997: PN&D wins a national-best seven awards from the Lincoln Arc Welding Foundation to bring its record total to 21. The winning projects were the West Dock Causeway Bridge (silver); Tudor Road Trail Crossing (bronze); Bell Street Pier Wave Barrier (bronze); Mooring Buoy Seabed Anchor Pile (bronze); Hawk Inlet Dolphin (merit); Pier A Wave Barrier (merit); and South Franklin Cruise Ship Dock (merit). • PN&D is a finalist in the American Consulting Engineers Council’s 31st annual Engineering Excellence Awards competition for the Bell Street Pier in Seattle, Washington. • PN&D forms an Engineering Division in the Joint Venture Limited Liability Company Sakhalin-Shelf- Service to meet the conditions required for work in Russia’s Sakhalin oil industry. Sakhalin-Shelf-Service, LLC, has Alaska, Japanese, and Russian interests.

*OPEN CELL SHEET PILETM systems installed in North America through 2015. PND has installed OPEN CELL systems in Sandys Parish, Bermuda; Umm Qasr, Iraq; Sakhalin, Russia; and La Brea, Trinidad, as well.

1998: PN&D wins the prestigious Construction Innovation Forum, Inc. NOVA Award, presented to Dennis Nottingham, for its OPEN CELL SHEET PILETM bulkhead technology. Presented annually, the NOVA Award recognizes innovations proven to be significant advances with positive, important effects on construction to improve quality and reduce cost.

36 The Value Solution for Deep Water and Challenging Port Sites

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The L.B. Foster Company provides distribution for Chaparral throughout North America. For all other regions, contact www.opencell.us Chaparral directly.

CHAPARRAL: chapusa.com 300 Ward Street Midlothian, TX 76065 USA 972.779.1251 PND ENGINEERS, INC: pndengineers.com 811 First Avenue, Suite 570 Seattle, WA 98104 206.624.1387 1506 W. 36th Avenue Anchorage, AK 99503 907.561.1011 PILEPRO: PilePro.com 1601 Mt. Rushmore Road, Suite 3-263 Rapid City, SD 57701 866.666.7453 L.B. FOSTER COMPANY: fosterpiling.com 415 Holiday Drive Pittsburgh, PA 15220 800.848.6249

*Port Technology International, 2006 37 2000: PN&D wins the National Steel Bridge 2001: PN&D wins three awards – Deep Alliance Prize Bridge Special Purpose Award Foundations Institute Outstanding Project and for its Kuparuk River Submersible Bridge on the Special Recognition Award for Bell Street Pier North Slope, Alaska. in Seattle, Washington; American Society of Civil Engineers Outstanding Civil Engineering Achievement for its Whittier access project; and the inaugural Pile Driving Contractors Association (PDCA) Project of the Year for Northstar Island on the North Slope.

Kuparuk River Submersible Bridge

Whittier Tunnel

Bell Street Pier

Northstar Island

PN&D designs improvements to the Anton Anderson Memorial Railway Tunnel, a landmark effort that breaks ground June 7, 2000, “PN&D used breakthrough technology and allowing automobile access innovative ideas to complete a project (Northstar to Whittier and Prince Island) that other engineers may have shied William Sound via the away from. From an engineering and pile driving previously rail-only tunnel. perspective, our committee found the project – and The redesign saves tens of millions of dollars that PN&D’s techniques – fascinating.” would have been required to construct a new ~Steve Whitty, PDCA, Piledrivers, 2002 highway tunnel and sets a number of records: • Longest highway tunnel in North America; “The work in Alaska is never cookbook. We are • Longest combined rail-highway use tunnel in always testing technology and our engineering North America; capabilities to make projects happen. On more • First tunnel in the U.S. to use both jet and than one occasion, we have invented new portal fans in its ventilation system; techniques to handle unique engineering and • First tunnel with a computerized traffic- construction challenges.” control system to regulate rail-highway traffic. ~Alan Christopherson, PN&D, Piledrivers, 2002

38 2002: PN&D patents “That’s the reason we its FreeSpan STRAND designed them – directly in BRIDGETM design, an response to environmental innovative solution for issues. It doesn’t touch anything. crossing environmentally It works like magic.” protected areas. ~Dennis Nottingham, Mike Swalling, president Alaska Journal of Commerce, of Swalling Construction in 2002 Anchorage, Alaska, partners with PN&D to form FreeSpan Systems, Inc. • PN&D wins American Council of Engineering Companies Gold Award for its Pier 66 passenger boarding gangway in Seattle, Washington.

2003: PN&D wins American Council of Engineering Companies Silver Award for its Columbia & Cowlitz 2004: PN&D 2005: PND Railway changes its Incorporated changes Bridge name to PND its name to PND Number 7 Incorporated. Engineers, Inc. in Kelso, Washington.

2004: PND designs an OPEN CELLTM system for the City of Stockton off San Francisco Bay to seismically strengthen Bay Area bridges in response to the 1989 Loma Prieta Earthquake, a 6.9 quake that caused part of the upper deck of the Bay Bridge to collapse. The California Department of Transportation had tested PN&D’s SPIN FINTM piles in 1990-91 in an effort to shore up as many as 400 bridges weakened by the 6.9 earthquake.

39 2005: PND wins a pair of awards – an American Society of Civil Engineers Silver Award for Social, Economical, and Sustainable Design Considerations for its Northwest Maritime Center Dock in Port Townsend, Washington; and an American Council of Engineering Companies Silver Award for Future Value to Engineering Profession & Perception of the Public for its AJ Cruise Ship Dock in Juneau, Alaska.

Heritage Harbor

2006: PND wins the Federal Highway Administration Award of Excellence for Best Special Purpose Bridge for 2007: PND wins American Society of Civil Engineers (Juneau its Snohomish Riverfront Chapter) Honorary Project of the Year Award for Heritage Harbor in Trail Pedestrian Bridge in Wrangell, Alaska. Snohomish, Washington. The • PND, a subconsultant to McCool Carlson Green Architects, bridge was featured by the U.S. wins a Council of Educational Facility Planners International Department of Transportation Len Mackler Award for the Mat-Su Career & in the 2007 issue of “Enhancing Technical High School in Wasilla, Alaska. It’s America’s Communities: the first of seven Len Mackler Awards that A Guide to Transportation PND has won for civil and structural design of Enhancements” magazine. educational facilities in Alaska.

2008: PND partners with the U.S. Army Corps of Engineers, West Construction, and CCI, Inc. to build its OPEN CELL SHEET PILETM system at Umm Qasr (photos at left) for the Iraqi Navy in Basra Province. “The pier and seawall project will provide a state-of-the-art berthing facility for the Iraqi Navy and support patrol vessels charged with securing the vital port infrastructure and seaways in Iraq’s territorial waters. The project is incorporating the latest marine technology to support the fleet charged with protecting Iraq’s oil infrastructure which is critical to the nation’s economic growth and development.” ~Jim Hynum, U.S. Army Corps of Engineers Gulf Region South Basra Area Office

• PND wins the Associated General Contractors (AGC/Washington) Heavy/ Industrial Construction Project of the Year Award for its Clover Island Marina renovation in Kennewick, Washington.

40 1 2009: PND wins seven awards for seven different projects. The Glenn-Bragaw Interchange in Anchorage, Alaska, wins the American Public Works Association (Alaska Chapter) Best Project Award. The Dakota Creek Industries Shipyard Redevelopment in Anacortes, Washington, wins the American Society of Civil Engineers (ASCE) Local Civil Engineering Achievement Honor Award 2 in Ports and Waterways Engineering. The Gravina Island Access Road in Ketchikan, Alaska, wins the American Road & Transportation Builders Association Globe Award. The Auke Bay Loading Facility in Auke Bay, Alaska, wins the ASCE (Juneau Chapter) Honorary Project of the Year Award. Clark Middle School in Anchorage wins the Council of Educational Facility Planners International Len 3 Mackler Award. Machetanz Elementary School in Wasilla, Alaska, wins the Alaska Municipal League, Conference of Mayors, Alaska Community Award of Excellence in Public Works. The Mat-Su Career & Technical High School (pictured on previous page) in Wasilla, Alaska, wins an Honorable Mention from Learning By Design Magazine.

4 Pictured at left:

1. Glenn-Bragaw Interchange, Anchorage, AK 2. Dakota Creek Industries Shipyard Redevelopment, Anacortes, WA 3. Gravina Island Access Road, Ketchikan, AK (background photo; pictured below) 4. Auke Bay Loading Facility, Auke Bay, AK 5 5. Clark Middle School, Anchorage, AK 6. Machetanz Elementary School, Wasilla, AK

6

41 2010: The Umm Qasr pier and seawall project, the first completed port project in post-war Iraq, wins an Aon Build America Award for best new international construction project, as recognized by the Associated General Contractors of America.

PND wins Pile Driving Contractors Association Project of the Year for Skagway Harbor Surge Control Breakwater.

2010: PND wins 2011: PND wins Council of Educational Council of Educational Facility Planners Facility Planners International Pacific International Pacific Northwest Pinnacle Northwest Pinnacle Award Award for Fred and Sara for Susitna Valley Junior/ Machetanz Elementary Senior High School in School in Wasilla, Alaska. Talkeetna, Alaska.

2011: PND wins Associated General Contractors of America’s Aon Build America Award for Best Renovation of a Federal and Heavy Construction Project for its St. Paul Island fur seal observation towers and walkways on Pribilof Islands, Alaska.

42 2012: PND wins American Society of Civil Engineers (Juneau Chapter) Outstanding Civil Engineering Project of the Year for its Carl E. Moses Boat Harbor in Dutch Harbor, Unalaska, Alaska. 2012 • PND opens its office in Vancouver, B.C. • PND opens its office in Palmer, Alaska. 2013

OCSPTM in Cohasset, Minnesota Akutan Airport, Akun Island, Alaska

2013: PND wins PDCA • PND wins four Project of the Year for its American Society Boswell Unit 4 OPEN CELL of Civil Engineers SHEET PILETM bulkhead (Juneau Chapter) in Cohasset, Minnesota, Honorary and the Transportation Project of the Projects Honor Award from Year Awards, the Design-Build Institute including its of America for its Akutan Statter Harbor Airport project on Akun Statter Harbor, Juneau, Alaska project in Juneau, Island, Alaska. Alaska. 43 2014: PND wins the Chief of Naval Operations Environmental Award under the environmental restoration/ installation category for its Alameda remediation project (below left) in Alameda, California, and the American Society of Civil Engineers Outstanding Project of the Year for its cruise ship terminal staging area improvements project (below right) in Juneau, Alaska.

2014: PND wins a pair of awards from the Council of Educational Facility Planners International – the Len Mackler Award for Valley Pathways School (far right) in Palmer, Alaska, and a Merit Award for Pacific High School (right) in Sitka, Alaska. Pacific and Valley Pathways were awarded consecutive Learning By Design Grand Prizes in 2015 and 2016, respectively, and Valley Pathways won an American Institute of Architects Merit Award in 2015.

2015: PND earns Roads & Bridges No. 1 2016: PND wins American Society of Civil ranking on the magazine’s Top 10 Roads list for its Engineers Project of the Year for its Statter Harbor Deweyville Trailhead to Neck Lake Road project Boat Launch facility (top) in Juneau, Alaska, and on Prince of Wales Island, Alaska. the Society of American Military Engineers Silver Design Excellence Award (small business) for its Upper Government Hill housing project (bottom) in Kodiak, Alaska.

• PND opens its office in Houston, Texas.

44 Juneau Cruise Ship Berths

2017: PND earns nine awards for seven projects. The Juneau Cruise Ship Berths project in Juneau, Alaska, wins three awards – the Pile Driving Contractors Association Project of the Year; the American Society of Civil Engineers (Juneau Chapter) Project of the Year; and Engineering News-Record’s Northwest Best Airport/ Transit, Excellence in Safety, and Best Specialty Construction honors. The Permanent Canal Closures and Pumps cofferdams project in New Orleans, Louisiana, wins the American Council of Engineering Companies Silver Award for Engineering Excellence. The U.S. Coast Guard Cold Bay Forward Operating Location Hangar in Cold Bay, Alaska, wins the Society of American Military Engineers Seattle-Tacoma Post Gold Award for Small Businesses. The Chignik Dock in Chignik, Alaska, wins Engineering News-Record’s Northwest Best Highway/ Bridge project. The Statter Harbor Shelter and Boat Launch ramp facility in Juneau, Alaska, wins the States Organization for Boating Access Outstanding Project. The Douglas Harbor renovations in Juneau, Alaska, wins the American Society of Civil Engineers (Juneau Chapter) Project of the Year runner-up. Girdwood Elementary and Junior High School wins a Learning By Design Outstanding Project Award. • PND designs an OPEN CELL SHEET PILETM bulkhead in Sandys Parish, Bermuda, which serves as the vessel staging area and waterfront village site (pictured at right) for the 2017 America’s Cup yachting competition.

45 2018: PND wins two American Institute of Steel Moose Run Golf Course Bridge Construction and National Steel Bridge Alliance Prize Bridge Awards for its Colville River Nigliq Bridge in Nuiqsut, Alaska, and its Moose Run Golf Course Bridge in Anchorage, Alaska. The Nigliq Bridge, the first launched bridge constructed in North America north of the Arctic Circle, also wins Outstanding Project in the new bridges/transportation structures category in the National Council of Structural Engineers Association Excellence in Structural Engineering Awards competition and finished No. 2 on Roads & Bridges’ annual Top 10 Bridges list in 2016.

Nigliq Bridge

2018: PND wins a pair of Engineering Excellence E-Week awards: Project of the Year for Juneau Cruise Ship Berths and an Honor Award for the UniSea G1 Dock (pictured at left) in Unalaska, Alaska.

2018: Architectural Digest selects Kodiak High School, a PND civil-designed renovation, as Alaska’s winner in its Most Beautiful Public High School in Every State in America competition. The expansion and renovation project also earned the Award of Honor at Alaska’s American Institute of Architects conference and the Len Mackler Award from the Association for Learning Environments.

46 2019: PND wins the Pile Driving Contractors Association Project of the Year for its Permanent Canal Closures and Pumps cofferdams and permanent OPEN CELLTM retaining walls job in New Orleans, Louisiana.

47 2019: PND celebrates its 40th anniversary.

48