The South Carolina Design-Build Experience Presented by: Rocque L The South Carolina Design-Build Experience Presented by: Rocque L. Kneece, P.E.

Brockman-McClimon Interchange Southern Connector $ 206 million COMPLETE I-95 Honda Interchange $ 8 million COMPLETE Wateree River $ 8 million COMPLETE Conway Bypass $ 386 million COMPLETE Carolina Bays Parkway (2) $ 54 million ACTIVE Brockman-McClimon Interchange $ 52 million SELECTION Reedy & Enoree Bridge* $ 3 million COMPLETE Carolina Bays Parkway (1) $232 million COMPLETE Cooper River Bridge $ 531 million ACTIVE DESIGN-BUILD PROJECTS SC 170 Widening $80 million ACTIVE

Includes Right of Way Acquisition Carolina Bays Parkway Horry County, SC New Location Freeway 22 miles in Length Includes Right of Way Acquisition $232 million

- The Quality Challenge - Carolina Bays Parkway - The Quality Challenge -

Quality Materials - Procedures

Carolina Bays Parkway

Carolina Bays Parkway

QA/QC RESPONSIBILITY Job Control Testing Used for Acceptance QA/QC Testing by Contractor Job Control Testing Used for Acceptance Independent Assurance Testing by DOT Discrepancies in Test Results resolved by third party testing

Additional Measures by DOT Assigned Resident Construction Engineer Hired Consultant for Monitoring and Testing DOT sets 10% Independent Test Ratio

QA/QC COMMITMENT QA/QC QA/QC 9 12+ PROJECT DOT CONTRACTOR 1 3+ 1 3+ ENOREE/REEDY R. BRS. WATEREE R. BRIDGE SC 170 WIDENING CAROLINA BAYS PKWY COOPER RIVER BRIDGE 1 5+ 5+ 9+ 9 12+

Cooper River Bridge Charleston, SC $532 million

Existing Bridges

Project Location We Are located at 701 East Bay Jacobs Engineering employees 500 employees locally. New location

Project Statistics Length (Hwy 17) – 3.5 miles Drilled Shafts - 427 Concrete – 308,000 CY (poured in place) Rebar – 53,000 tons Structural Steel – 43,000 tons Concrete Girders – 717 Bridge Deck – 2 million sq. ft. (28 lane-miles) ONLY 4.92 acres of environmental impacts!

QA/QC BASIC STRUCTURE Acceptance Testing by DOT QC Testing by Contractor Acceptance Testing by DOT DOT Test Rate Equals 20% of QC Testing Independent Assurance Testing by DOT

QA/QC PERSONNEL QA/QC QA/QC 9 + 12+ 18+ 20+ DESIGN-BUILD CONTRACTS PROJECT DOT CONTRACTOR QA/QC QA/QC 1 3+ ENOREE/REEDY R. BRS. WATEREE R. BRIDGE SC 170 WIDENING CAROLINA BAYS PKWY-1 COOPER RIVER BRIDGE 1 5+ 5+ 9+ 9 + 12+ 18+ 20+ Contract Responsibility Not a Contract Responsibility

The Environmental Challenge Sediment and Erosion Control Construction Access Hazardous Materials Turtle Lighting Community Impacts

The Environmental Challenge Joint Environmental Inspections Contractor and DOT Contractor has a full time environmental inspector on the project Full Time SCDOT Environmental Consultant Together, the team of environmental professionals functions to ensure environmental compliance and to expedite the environmental process.

Sediment & Erosion Control Approximately 2 miles of silt fence, 10 temporary sediment basins, and several check dams among other control measures are installed on the project. Contractor and SCDOT have strict inspection processes in place to monitor erosion control measures. Inspections weekly and after every .50” rain

Temporary Sediment Basin

Construction Access A total of 3 temporary construction trestles were erected for the project. Greatly minimized impacts to wetlands while still allowing construction access.

Hazardous Materials SCDOT has remediated five UST’s, disposed of more than 100 cubic yards of contaminated material, and abated lead based paint and asbestos from structures ranging from houses to bridge. During the construction of the CRB, SCDOT has spent an additional half million dollars for handling of hazardous materials/waste encountered during construction.

Pumping material from an abandoned UST encountered in the Charleston Interchange.

Potential Turtle Impacts Concerns raised that bridge lights may disturb loggerhead hatchlings Aesthetic Lighting Modified Lights are controlled by timer Lights may be dimmed Lights may be turned off

Community Impacts Nine homes within the project ROW were relocated for affordable housing. The homes were placed on new foundations at various sites in the community and are being renovated through a partnership between SCDOT and the City of Charleston.

Lessons Learned Include the Draft Contract with the RFP Include Schedule of Values in Contract QC/QA - Trust but verify Independent Assurance by DOT Be sensitive to the community concerns Make Partnering a Key Element Establish Lines of Communication Time really is money – make decisions quickly

LAST LESSON LEARNED

BE CAREFUL OUT THERE… You never know what you might find.