In The Headlines

New Vice President/Division Manager for Tennessee

Brentwood, TN – Joseph C. Corradino,PE founder and CEO of The Corradino Group, Inc., announced the appointment of Gerald Bolden, PE, PTOE, as Vice President/Division Manager of Corradino’s Tennessee Operations.

“We’re excited to introduce Gerald as our VP/Division Manager in Tennessee,” said Corradino. “Gerald has been a leader in the Tennessee professional engineering market for over twenty (20) years, and we’re fortunate to have him join the Corradino Team.”

Gerald, a 1996 graduate of Auburn University, has 20+ years of experience in traffic engineering, intelligent transportation systems (ITS), transportation planning, and geometric design. He’s served in management roles for local and national engineering firms and worked closely with the Tennessee Department of Transportation, and several municipalities throughout Tennessee. One of his specialties is ITS, including planning, design, and construction engineering & inspection.

Gerald has lived in middle Tennessee region since 1996 and currently lives in Spring Hill, Tennessee, with his wife, a teacher with Williamson County Schools, and two children.

Gerald is an active member of various professional organizations, including the Intelligent Transportation Society of Tennessee (ITS TN), where he previously served as President and is currently serving as a member of the Board of Directors and the Institute of Transportation Engineer (ITE).

Gerald will lead Corradino’s efforts in Tennessee from their Brentwood office, where Corradino has been providing engineering services for the Tennessee Department of Transportation and municipal governments for many years.

The Corradino Group, Inc. has been providing professional transportation engineering, planning, design, construction management, environmental, and Program Management for over forty-six (46) years, and have overseen some of the largest transportation infrastructure projects in the United States from offices in Tennessee, Florida, Indiana, and Kentucky. Current projects include the $2.3 billion I-4 Ultimate in Orlando, the $850 million I-395 bridge in Miami, the $1.2 billion Broward County Schools Bond Program in Fort Lauderdale, and the $1.8 million expansion of the Fort Lauderdale-Hollywood International Airport.

Gerald can be reached at the Brentwood office (615)372-6972 or

Indiana DOT Selection

The Indiana Department of Transportation (INDOT) recently selected Corradino for three assignments:

  • On-Call Long Range Transportation Planning
  • Update of the Indiana Statewide Travel Demand Model
  • Design of five structure replacements
Each is described below.


On-Call Long Range Transportation Planning
Corradino will assist INDOT to carry out technical planning support services for air quality conformity, statewide land-use model update, and other support related to the statewide travel demand model (ISTDM). The tasks identified so far include:
  1. Revising the existing Indiana TransCAD-based Air Quality Post-Processor (AQPP) for the Northwest Indiana Regional Planning Commission (NIRPC);
  2. Improving the existing INDOT Traffic Forecasting Tool (TFT) to integrate recent traffic count data, add new analysis features, and be compatible with the latest TransCAD version;
  3. Revising the existing INDOT Land Use Model to be compatible with the latest TransCAD version, improving the Land Use Model’s connectivity with ISTDM, exporting land use information by desired geographic units.
  4. Corradino is the prime consultant with Cambridge Systematics and DLZ as sub-consultants. This is a two-year contract, with INDOT’s option to renew one time for both time and budget.


Update of the Indiana Statewide Travel Demand Model
Corradino is a sub-consultant to Cambridge Systematics to update the Indiana Statewide Travel Demand Model (ISTDM). ISTDM is a TransCAD-based, 4-step traditional travel demand model with a commodity-based freight model component. The major updates of ISTDM will include:
  1. Developing a new base year of 2015 and extend the model horizon year from 2035 to 2045
  2. Redeveloping the TAZ/Network
  3. Updating the freight model
  4. Developing a new trip distribution
  5. Updating the mode choice model
  6. Incorporating a new time-of-day algorithm
  7. Converting to the latest TransCAD version


Bridge Replacement Design
Corradino will design five bridge replacements in the Crawfordsville DOT District. The services include: environmental document preparation; hydraulic analysis; waters report; permit applications; plan development and utility coordination. The projects, estimated at almost $5 million to complete, are at the following locations:
  1. US 421, south of SR 47 in Boone County;
  2. US 421, south of SR 28 south junction in Clinton County;
  3. US 136, east of SR 267 in Hendricks County; US 40, 3.00 miles east of SR 75 in Hendricks County
  4. US 40, west of SR 75 in Putnam County.

Tennessee Office Planning/Engineering wins Contract Awards

TDOT’s Long Range Planning On-Call Contract. This contract’s duration is five years, with a contract ceiling of $1 million. Typical work orders anticipated include complete streets studies, major thoroughfare plans, and other planning studies for communities that are not located within an MPO area.

TDOT’s Traffic Operations Division On-Call Contract. This contract’s duration is three years, with an anticipated contract ceiling of $1 million. Typical work orders anticipated include signal design projects and transportation planning projects.

TDOT’s Multimodal Division On-Call Contract. This contract’s duration is four years (work orders can be issued in the first two years), with a contract ceiling of $1 million. Typical work orders anticipated include railroad-highway at-grade crossing studies.

The Town of Farragut, TN Development Impact Fee Study. The purpose of the Town of Farragut impact fee program is to fund the fair share cost burden of required transportation improvements associated with private development. A sophisticated travel demand modeling approach will be used to estimate the need for additional transportation infrastructure improvements and/or additional transportation capacity. This contract will be a joint effort between Corradino’s Indianapolis and Nashville Offices. In addition to these on-call contract selections, we have been allocated addenda on one of our interstate ramp queue safety studies and the ongoing I-69 Reevaluation and FEIS.