OnSitePeople building for People. Rain or Shine: Pickwick Landing Dam Seismic Upgrade Project Weathers Record Rainfall to Reach Substantial Completion Inside page 2 • Pickwick Landing Dam Seismic Upgrade Project page 3 • Tim Barnard Golden Beaver Award • Safety Excellence Award • Industry Awards pages 4-7 • Pickwick Continued • Awarded Chimney Hollow • Project Updates - West of Devers, Keeyask, SVCW, C-44 page 8 • Annual Awards Banquet • Barnard’s “Next Generation” Spring 2020 After a full year of construction, Barnard is putting the finishing touches on the Pickwick Landing Dam South Embankment Seismic Upgrade Project. As the largest dam construction project Barnard has completed for the Tennessee Valley Authority (TVA), the project has benefitted from an experienced team. Barnard has worked with TVA on various dam remediation and ash pond closure projects since 2014, and approximately half of the Pickwick staff have worked on previous TVA projects. This experience and client familiarity has proven invaluable, as the project got off to a strong start despite record rainfall and resulting floods. In September 2018, Barnard was level, the tailwater levels at Pickwick the upstream and downstream sides awarded a contract to improve the Landing Dam had risen over 30 feet of the dam. The team recovered lost performance of the Pickwick Landing and areas of the site were under more time by adding resources, working Dam during a major seismic event. than 20 feet of water. Additionally, extended hours while the sun Located on the Tennessee River a water levels on the Tennessee River shined, and coordinating with TVA to few miles north of the point where were so high that the U.S. Army re-sequence some critical activities. the states of Tennessee, Alabama, Corps of Engineers closed locks on and Mississippi meet, the dam was the river, preventing subcontractor continued on page 4 originally constructed in 1938 to Luhr Bros., Inc. from mobilizing their provide hydroelectricity, flood control, equipment up the river and improved navigability of the river. to begin their work on Aerial view of the turbidity curtains installed around Barnard’s work involved buttressing the upstream side of the local water intake structures. The turbidity curtains were installed to ensure that water quality was not affected by both the upstream and downstream dam. The flood delayed our team’s adjacent work. sides of the existing hydraulic fill dam, the start of the project installing a new toe drain system and by three weeks and left dewatering system, and performing the team with some very instrumentation modifications. saturated conditions to start the project. Following several months of submittals and planning, Barnard crews were As the flood waters scheduled to start construction receded, crews hit the in early March 2019. However, in ground running on both late February the Tennessee Valley received record rains; the site received 16 inches of rain that February alone. These rainfalls were in excess of 300 percent of the average rainfall for that time of year. As the rain continued to fall, water levels throughout the Tennessee Luhr Bros. places rockfill and surface Valley rose. At riprap on the upstream berms. the peak flood 2 Barnard OnSite inside Barnard Tim Barnard Receives 2020 Golden Beaver Award in Management Each year, the Beavers, an organization within the heavy engineering construction industry, honors individuals for their achievements and contributions to the industry by selecting winners for their Golden Beaver Award in the categories of Management, Supervision, Engineering, and Service & Supply. For the integrity, merit, and skill shown in actively managing Barnard Companies, Tim Barnard won this year’s Management Award, which he was presented with at the Beavers Awards Dinner held on Jan. 17 in Los Angeles. Tim founded Barnard Construction Company, Inc. in 1975. Today, as Chairman, he continues to be involved with all major decisions as the company focuses on unique and demanding projects. Barnard Recognized for Safety Excellence In recognition for excellent safety commitment, Barnard safety programs. In late February, Safety Manager Garris received the National Utility Contractors Association (NUCA) Buckaloo and Project Engineer Zach Remus accepted the 2019 William H. Feather Safety Award in the over 1 million award on behalf of Barnard at the NUCA annual convention man-hour category. This award honors the contributions and exhibit in Tucson, Arizona. Barnard has received this of the founding chairman of NUCA’s safety committee, honor five times in as many years, an accomplishment William H. Feather, and recognizes NUCA members for we owe to every employee’s commitment to making safe their outstanding safety performance and strong corporate choices each day. Haiwee Project Earns Two Industry Awards The Haiwee Power Plant Penstock Replacement ENR’s Best Project award for Southern California in Project earned the 2020 Associated General Contractors 2019, as part of ENR’s regional competition. Out of the of America (AGC) Build America Award in the Utility 918 projects that were submitted for ENR’s regional Infrastructure Renovation category. Barnard worked competition, only 20 were selected as the Best of the with Engineer Golder Associates and pipe manufacturer Best Projects. Congratulations to all who made this Ershigs, Inc. to complete this challenging project for project a success! the Los Angeles Department of Water and Power. This is the fourth time in five years that a Barnard project has won in this category; past winners include the Oroville Dam Transmission Line Permanent Reroute Project (2019), the Chilhowee Dam North Embankment Remediation Project (2018) and the Gilboa Dam Reconstruction Project (2016). The project team accepted the award on March 10 at the AGC’s annual convention in Las Vegas. The Haiwee Project also won Engineering News-Record’s (ENR’s) Best of the Best Projects competition in the Water/ Environment category. This is after winning Spring 2020 3 Pickwick continued from page 2 All of this hard work, planning, rock berm and extended fill in the and problem solving has proven wet from barges in water depths up successful. Barnard placed over to 30 feet. Materials came from two 1 million tons of common fill, filter different river-based quarries and one sand, aggregates, and riprap on land-based quarry. The river-based the downstream side of the dam. quarries are located in Missouri and The downstream work included Kentucky, as far as 380 miles from dewatering; excavation; performing the project site. instrumentation modifications; constructing manholes, catch basins, Thanks to strong coordination and a new toe drain; filter placement; between Barnard, Luhr. Bros., GEI fill placement; and placing riprap for Consultants, Inc., TVA, and material slope stabilization. Materials were suppliers, major construction is imported from five different quarries anticipated to be complete in April ranging in distances from 3 to 34 2020. Although this year has brought miles from the dam. the return of rain and flood conditions, there are no dampened spirits on On the upstream side of the dam, the project team—only a group of Barnard crews fill the sediment basin Luhr Bros. placed over 800,000 individuals eager to cap off a year of with common fill at Pickwick. tons of rockfill and riprap. Upstream determination and hard work. work involved constructing a large Pickwick Landing Dam South Embankment Seismic Upgrade Project By the Numbers 48,500 150,000+ safe man-hours dump truck loads of material delivered 616 barges of material unloaded 24 85 manholes inches of rain installed 5,500 1,867,000 2 major flood events linear feet of HDPE pipe installed tons of material placed 76 workers onsite at peak manpower 4 Barnard OnSite inside Barnard Barnard Awarded New Dam Project in Northern Colorado In December 2019, Barnard entered into a $485.4 million contract with the Windy Gap Firming Project Water Activity Enterprise to construct the Chimney Hollow Reservoir Dam in Larimer County, Colorado. The reservoir will store approximately 90,000 acre-feet of water and provide 30,000 acre-feet of water annually to the residents of Northern Colorado. As the General Contractor, Barnard will construct a new, 355-foot-tall zoned rockfill dam with hydraulic asphalt concrete (HAC) core, a zoned rockfill saddle dam, a reinforced concrete inlet/outlet structure, concrete-lined tunnel, and concrete spillway. Barnard will also construct water distribution facilities, consisting of large-diameter conveyance piping and construction of a flow-regulating valve house. Preconstruction work began in December 2019; construction is anticipated to start toward the end of 2020 and is expected to last four years. Once completed, the HAC rockfill dam will be the second and largest of its kind in the United States. West of Devers Project Begins Critical Move With the onset of spring in existing transmission structures and this six-month window. Upon the Southern California, the West of 184 circuit miles of conductor. completion of Move 8, construction will Devers Upgrade Project team be nearly 70 percent complete for the has successfully completed three The team recently finished Moves entire project. Barnard appreciates the additional outages, known as “moves,” 5, 6, and 7 of the project’s 18-move hard work of design engineer Black & to advance this Engineer-Procure- sequence. They have now started Veatch and key subcontractors APS, Construct (EPC) project for