J.F. Brennan Co., Inc. FULL SERVICE MARINE CONTRACTOR Lock and Dam Construction Hydraulic Dredging & Dewatering Specialty Construction and Diving

J.F. Brennan Co., Inc. FULL SERVICE MARINE CONTRACTOR Lock and Dam Construction Hydraulic Dredging & Dewatering Specialty Construction and Diving Brennan Marine Co., Inc. MARINE TRANSPORTATION SERVICES Switching & Fleeting Port and Fleet Management Barge Cleaning & Repairs Bulk Cargo Movements

HISTORY Brennan Founded in 1919 by James Brennan Owned and Operated by Anthony Binsfeld - Maternal Grandson Much of Workforce is 2 nd, 3 rd & 4th Generation Marine Services Sales > $60 Million Total Focus of Brennan is Marine Construction and Marine Transportation Services

VISION The Vision of Brennan is: To Demonstrate a Stewardship of the Waterways by providing the Highest Quality Work throughout a wide range of Marine Services

MISSION Mission of Brennan is: To be the Leader in the Marine Services Industry by providing creative solutions to our Customer s needs while demonstrating Responsibility to our Employees, Shareholders, Business Partners and the Environment

Harbors Engineering Firms MARKETS Railroads Government Agencies Floating Casinos Industrial Contractors Barge Terminals Utilities Pulp & Paper Agricultural Mining Municipalities

BRENNAN S SERVICES Diving - Underwater Inspections and Repairs Bridge Scour Protection Erosion Protection Concrete Repairs Pressure Grouting Bridge Structural Repairs

SERVICES (Continued) Sediment Removal - Hydraulic & Mechanical Emergency Salvage Demolition Marine Equipment Support

Sediment Removal Mechanical Excavation Hydraulic Dredging

COMPARISON OF HYDRAULIC TO MECHANICAL Processes Equipment

Process Comparison Hydraulic Mobilize Clear & grub containment area Dredge solids Hydraulically transport solids Return residual water to waterway Demobilize Mechanical Mobilize Clear & grub containment area Drain waterway and build roadways (As required) Excavate solids and place into trucks Unload trucks & level containment area Demobilize

Equipment Comparison Hydraulic Cutterhead Dredges 5-8 Portable - Ultra I 12 Portable - Michael 16 Portable - Mark Anthony II Boosters Pipeline fusing equipment HDPE plastic pipe Dozers Barges (As Required) Mechanical Cranes with clamshell or dragline buckets Backhoes Dozers Scrapers Dump trucks Front endloaders Conveyors

Mechanical Excavation Dragline Backhoe / Barge

Other Excavation Capabilities

Hydraulic Transport of Solids And Dewatering Techniques

Conventional Swinging Ladder Cutterhead Dredge

Hydraulic Dredge - Ultra - 8 Features: Type: Cutterhead Functions: Swinging Ladder or Conventional Mode Overall Size: 39 long, 10 wide in conventional mode, 16 6 in swinging ladder mode Draft: 2 6 Working Capacity: 17 depth of cut, 51 5 maximum swing width Pump Location: Below waterline

Hydraulic Dredge - Michael B - 12 Features: Type: Cutterhead Functions: Swinging Ladder or Conventional Mode Overall Size: 80 long, 23 wide Draft: 3 Working Capacity: 27 depth of cut, 53 maximum swing width Pump Location: Above waterline

Hydraulic Dredge - Mark Anthony II - 16 Features: Type: Cutterhead Functions: Swinging Ladder or Conventional mode Overall Size: 113 long, 29 wide, 3 draft Working Capacity: 26 - deep (swing mode), 40 deep (conventional mode) depth of cut, Swing width - 150 max Pump Location: Above waterline

Hydraulic Dredging - Support Equipment Pipeline Fusing Booster - Diesel Driven

Hydraulic Dredging - Support Equipment Floating Weir Amphibious Mudbuggy

RTK-GPS Basics: DREDGEPACK : Positions the dredge in the cut Shows how deep you are dredging versus the design depth Shows profile views to show you what the bottom is doing Provides a history of digging operations

BENEFITS TO CLIENT Hydraulic Transport of Solids Faster Project Completion Lower Cost More Environmentally Sensitive Greater Safety Less Impact on Roads

Project Types Environmental Aquatic Habitats Waterfowl Habitats Recreational Boating Channels Navigational Channels Fishing Ponds Commercial Reservoirs Intake structures Dikes & detention ponds

Project Locations Oceans Rivers Lakes Ponds Recreational facilities Marshes Quarries Highways Bridge approaches Land areas with high water tables

Beneficial Uses of Sediment Granular Top Soil Icy roads Farms Beach refurbishing Residential Levee & berm construction Recreational facilities Building sites Road base Berm plantings Bridge approach base Landfills Island creation Island plantings

Lake Altoona Reclamation Project Project Type: Lake District Rehabilitation Project Location: Material Dredged: Quantity: Pipeline Length: Beneficial Uses: Lake Altoona, Eau Claire, WI Sand 409,500 cubic yards 12,000 lineal feet Landfill cover - 45,000 cy/year Icy Roads - 10,000 cy/year

Lake Altoona Reclamation Project ALTERNATIVE APPROACHES CONSIDERED Mechanical excavation subsequent to lake drawdown Dredge sediment trap only Bank stabilization measures only Do nothing

Lake Altoona Reclamation Project HISTORICAL PERSPECTIVE Lake Altoona formed by dam erected in 1938 Eau Claire River continuously deposits sediment into Lake Altoona 1971 - Lake Altoona Reclamation District formed 25 years of planning, fund raising, etc. Selected engineering firm - Short Elliott Hendrickson Formed Partnering Alliance Analyzed Alternative Approaches Spring 1996 - J.F. Brennan Company selected as G.C. Project Commenced - Late Summer 1996 Project Completed - Late Spring 1997

Lake Altoona Reclamation Project PROJECT CHALLENGES Uninterrupted Recreational Use Distance to Containment Area (12,000 ln.ft.) Private Wells Flocculants Used to Control Water Quality Environmental Concerns

Lake Altoona Reclamation Project ENVIRONMENTAL CONCERNS Discharge limits for return water Dike failure Traffic / Noise Bank stabilization at return line High voltage line over sediment trap Endangered species: Blandings turtles, Karner Blue butterflies Public access during mobilization Boater safety during dredging operations Ground water mounding

Lake Altoona Rehabilitation District - Project Overview

After Dredging Before Dredging Lake Altoona Rehabilitation District

After Dredging Before Dredging Lake Altoona Rehabilitation District - Containment Area

Lake Altoona Rehabilitation District - Pipeline Route

Lake Altoona Rehabilitation District - Pipeline Booster

Dredge Mathew 16 Portable Slurry pipe discharge Lake Altoona Rehabilitation District - Equipment

Lake Altoona Rehabilitation District - Sediment Trap Area

Lake Altoona Rehabilitation District - 24 hour Dredging

Lake Marinuka Project Type: Project Location: Material Dredged: Quantity: Pipeline Length: Lake District - Hydraulic Dredging for recreational purposes Galesville, Wisconsin Silt and Sand 100,000 cubic yards 4,500 lineal feet

Before Dredging Lake Marinuka After Dredging

Lake Marinuka

Lake Winona Project Type: Project Location: Material Dredged: Quantity: Pipeline Length: Municipality - City of Winona Hydraulic Dredging for land development purposes Winona, Minnesota Silt and Sand 1,400,000 cubic yards 13,000 lineal feet - 3 boosters

Lake Winona - Dredge Cuts

Lake Neshonoc Project Type: Project Location: Material Dredged: Quantity: Pipeline Length: Lake District - Hydraulic Dredging for recreational purposes West Salem, Wisconsin Silt and Sand 1,000,000 cubic yards 5,000 lineal feet

Lake Neshonoc - Sediment Reduction Plan Boating Channels Containment Area Sediment Trap Fish Habitat

N I M B Y

Bertom & McCartney Lake Project Type: Project Location: Material Dredged: Quantity: Pipeline Length: EMP (Environmental Management Project) Mississippi River, Cassville, Wisconsin Silt and Sand 400,000 cubic yards 10,000 lineal feet

Bertom McCartney Lake - (EMP)

Potters Marsh Project Type: Project Location: Material Dredged: Quantity: Pipeline Length: EMP (Environmental Management Project) Mississippi River, Thompson, Illinois Silt and Sand 600,000 cubic yards 13,000 lineal feet

Potters Marsh - (EMP)

Trempeleau National Wildlife Refuge Project Type: EMP (Environmental Management Project) Project Location: Material Dredged: Quantity: Pipeline Length: Trempeleau National Wildlife Refuge, Trempeleau, WI, off Mississippi River, Sand 260,000 cubic yards 8,000 lineal feet

Trempeleau National Wildlife Refuge - (EMP) - Dike

Pool #8 Island Reconstruction Project Type: Project Location: Material Dredged: Quantity: Pipeline Length: EMP (Environmental Management Project) Mississippi River, Stoddard, WI Silt and Sand 200,000 cubic yards 4,500 lineal feet

Pool 8 Island Reconstruction

Madison Beltline Road Project Type: Project Location: Material Dredged: Quantity: Pipeline Length: Dredging road base from Madison s lake Madison Beltline Madison, Wisconsin Sand 1,000,000 cubic yards 3,000 lineal feet

LaCrosse Industrial Park Road Project Type: Project Location: Material Dredged: Quantity: Pipeline Length: Dredging road base from Mississippi River Mississippi River, LaCrosse, Wisconsin Sand 600,000 cubic yards 13,000 lineal feet

LaCrosse North Side Industrial Park Road Base

Beneficial Uses of Sediment - Removal from Stockpile

PROCESS - ISSUES Needs Determination Lake Survey and Mapping Sediment Gradation Analysis Meeting with DNR On-Site Consensus of Lake District Accurate mapping of lake, water depths, and total quantities Dredgability and determination of uses Determine areas and depths to be dredged, timing, tests

PROCESS - ISSUES Soils sampling and testing Analyze sediment contaminants in lake Investigate containment Find location for sediment, areas proximity to lake, water table, and other constructability issues Develop preliminary cost Project feasibility and sources of funds models Permit applications Approvals from agencies Obtain funding & sign Commence project contracts