20220233 SSUUSTSTAAINAINABBILITILITY REY REPPORORTT Living Breakwaters, New York In response to Superstorm Sandy, the Living also provide a range of habitat spaces for oysters, Message from Management Breakwaters project on the southern shoreline of fin fish and other marine species. Kiewit Corporation Staten Island, launched by the U.S. Department of subsidiary Weeks Marine, Inc. is part of a multi- Housing and Urban Development (HUD), will provide disciplinary team and is responsible for the transportation 1. Overview a multifaceted approach to reducing and reversing and placement of the breakwater materials. About Kiewit the damaging e昀昀ects of erosion and storm waves. The program is an innovative coastal green infrastructure Weeks deployed a W537 Equilibrium crane, accompanied Sustainability at Kiewit by floating amphibious excavators and barges to Our Projects that will also serve to improve the ecosystem health of Raritan Bay, encourage stewardship of coastlines construct this armored coastal infrastructure which and generally enhance people’s experience of the is composed of rubble mound (rock) structures with 2. Governance shoreline in this part of Staten Island. a stone core, a base layer (bedding stone or marine Corporate Governance mattress, depending on the breakwater) and outer Houston Ship Channel Supply Chain Consisting primarily of 2,400 linear feet of near-shore layers consisting of armor stones and ecologically breakwaters, partially submerged structures built of enhanced concrete armor units. Once the breakwaters Expansion — Project 11, Texas 3. Environmental stone and ecologically-enhanced concrete units, this are constructed, the Billion Oyster Project will install live In 2023, Kiewit Corporation subsidiary Weeks infrastructure will reduce and eventually reverse the oysters to inhabit the “reef ridges” and “reef Marine, Inc. continued work on the Port of Environmental Stewardship negative impact of erosion and storm waves, and will streets” creating a diverse marine habitat environment. Houston’s Project 11. The project involves Greenhouse Gases & widening 8.3 miles of the Houston and 4 miles of Energy Consumption the Bayport ship channels using Weeks’ 30-inch 4. Social hydraulic cutter dredge, the C.R. McCaskill, in one of the nation’s busiest waterways. Health & Safety Diversity, Equity & Inclusion Weeks is using the dredging material to construct 3 Bird Island, a marsh habitat in Trinity Bay. When Talent & Workforce complete, the 3 Bird Island will create 6 acres Development of new bird habitat, 5.4 acres of oyster reef and Community Engagement 11,550 linear feet of armored dikes connecting each of the three points of the island. Appendix The completion of this project enhances Port Houston’s capacity to handle more cargo and larger ships and contributes to the conservation and restoration of local wildlife habitats. 10101010