UPPER NEWPORT BAY ECOSYSTEM RESTORATION PROJECT NEWPORT BEACH CITY COUNCIL STUDY SESSION FEBRUARY 14, 2006

WHY ARE WE CONCERNED ABOUT SEDIMENT DEPOSITION IN NEWPORT BAY? Directly impacts open water habitat Degrades other estuarine habitats Adversely impacts resident and migratory species Reduces tidal circulation in the Upper Bay Allows easy access to sensitive habitat areas Limits recreation and educational uses Creates shoals in navigation channels and slips Sediment TMDL Compliance

PROJECT OBJECTIVES Manage sediment deposition in the Bay to sustain a balance of estuarine habitats Reduce the frequency of dredging maintenance Improve or restore estuarine habitats Maintain water access for Reserve Managers Remove natural and man-made features in Reserve that provide little or no value Increase tidal circulation in stagnant water areas Reduce potential human or predator access to sensitive habitat areas Improve public use and access, and educational and recreational opportunities

PROJECT CONSTRAINTS Avoid any net loss in salt marsh habitat Limit future changes to all habitat types Prevent the advance of one habitat or species at the cost of another Minimize and/or avoid disturbance to wildlife

PROJECT FEATURES Expand and Deepen In-Bay Basins to –20 feet MSL Unit I/III Basin (Upper Basin) Move larger tern island Dredge about 958,000 cubic yards Increase open water area by about 19 acres Unit II Basin (Lower Basin) Dredge about 866,000 cubic yards Increase open water area by about 19 acres

PROJECT FEATURES (cont.) n Construction of 12 Restoration Measures u Reconstruct side channels around small tern island, New Island, Middle Island and Shellmaker Island u Restore dredge spoil areas at Northstar Beach and Shellmaker Island u Create a small channel at Shellmaker Island u Cap tern islands with clean sand u Segment main dike n Note: Some of the features listed have not been awarded in this construction phase

Light-Footed Clapper Rail Least Terns Some of the Endangered Species of Concern

Project Financial Data Project Costs - (65% Fed & 35% Non Fed) Project Costs - (65% Fed & 35% Non Fed)  Total = $39.2 million (Includes Engineering & Design)  Federal = $25.5 million  Non-Federal = $13.7 million (Includes LERRDs) Non-Federal Contributors Non-Federal Contributors  County of Orange - Formal Sponsor  CA Dept of Fish & Game – Formal Sponsor  CA Coastal Conservancy – $13 million grants Project Operations & Maintenance Project Operations & Maintenance  100% Local Cost  Maintenance Cycle Once Every 21 Years

Project Construction Data Contract awarded to DDM in Sep Contract awarded to DDM in Sep Contract includes: Contract includes:  Base Contract (Ecosystem Restoration)  Options (Basin II Dredging & Northstar) Start physical construction in Feb Start physical construction in Feb Period for Base Construction is 400 days. Period for Base Construction is 400 days.

Base Contract Base Contract Major Features: Base Contract Major Features:  Dredge access channel (Basin I/III & Basin II).  Create New Least Tern Island.  Enhance Hot Dog Island.  Create mudflats at 23 rd Street, Shellmaker & Bullnose West.  Restore channels at Middle, New, Hot Dog & Shellmaker Islands. Base Contract Cost: Base Contract Cost:  $11.1 million.

Mobilized Equipment 10-inch hydraulic pipeline dredge. 10-inch hydraulic pipeline dredge. Two tugboats. Two tugboats. Two 3000 cubic yard disposal scows. Two 3000 cubic yard disposal scows. Survey vessel. Survey vessel. Discharge pipeline. Discharge pipeline.

Staging Areas Newport Dunes Marina: Newport Dunes Marina:  Interim site.  Crew change out.  Launch dredge.  Vessel support.  Contractor’s work trailer. Northstar: Northstar:  Interim site.  Stage discharge pipeline. Lower Castaways: Lower Castaways:  Permanent site.  Usable within two months.

Upper Newport Bay Ecosystem Restoration

DUTRA HD PELICAN

Pelican Dimensions OVERALL LENGTH W/ LADDER - 71’ OVERAL WIDTH - 17’ 7” SUCTION PUMP DIAMETER - 12” MINIMUM DREDGING DEPTH - 3’ MAXIMUM DREDGING DEPTH -20’

Wing Tanks FUNCTION: Port & Starboard Bouncy Tanks DIMENSIONS : 4’ x 45’ GROSS TONS: 5 each

Hydraulic Dredge

Discharge Pipe Fill Area

BUILT BY: F.M.C. – 1983 – Portland, OR DIMENSIONS : 258 x 45 x 18 GROSS TONS: 1836 ABS: Current Load Line Scow DS cy Dump Scow

Scow DS cy Dump Scow BUILT BY: F.M.C. – 1983 – Portland, OR DIMENSIONS : 258 x 45 x 18 GROSS TONS: 1836 ABS: Current Load Line

Sea Lion Workboat

Cleo Brusco Terri L. Brusco Electronics Length73’ Radar Furuno (2) Beam24’ VHF Icom (5) Draft8’ Autopilot Comnav Horsepower1800 GPS/plotter Echotech (2) Fuel23,300 SSB Sea 222 Berths6 Fathometer Datamarine (2)

Survey Boat BUILT BY: Northwind DIM ENSIONS : 22’ x 8’ GROSS TONS: 10 ENGINES: HP EQUIPMENT: GPS – FATHOMETER