Quarterly Construction Progress Report

183A Turnpike Project Phase II Page 1 of 13
Quarterly Construction Progress Report, No. 6
INTRODUCTION
This report documents and describes the second phase of the 183A Turnpike Project
construction from July 1, 2011 to September 31, 2011. This project is an extension of the
existing 183A toll road facility and is being constructed by the Central Texas Regional Mobility
Authority (Mobility Authority). The project is funded entirely from toll revenue bonds.
PROJECT DESCRIPTION
Phase II of the 183A Turnpike Project is located in southwestern Williamson County and
extends approximately 5.1 miles, traversing through the cities of Cedar Park and Leander in the
State of Texas. The Project extends the mainlanes of the existing 183A Turnpike from FM 1431
to north of RM 2243. This limited-access toll road will be constructed between the existing
frontage roads which were constructed as part of the initial phase of the Project and the
added capacity will consist of three lanes in each direction with access ramps connecting to the
frontage roads. It is located east of, and parallel to, the existing US 183 facility. See Figure 1 for
the Project Map.
The construction tasks principally include: preparation of right-of-way; excavation and
embankment; flexible base / cement treated base; warm mix asphalt; concrete pavement;
concrete curb and gutter; roadway bridges; retaining walls; drill shafts; rip rap; concrete box
culverts and other drainage structures; water quality ponds; barricades, signs, and traffic
handling; illumination; overhead sign supports; traffic / pedestrian signal head, pole, and
detectors; a pedestrian bridge; toll facilities; and ITS ducts.
The Mobility Authority entered into a contract with Webber LLC Contractors (Webber) to
construct the 183A Phase II Project. The agreement requires the project to be substantially
complete by March 2012. The Contractor has developed an acceptable Baseline CPM (Critical
Path Method) Schedule for the Project. The Mobility Authority issued Notices to Proceed (NTP)
for NTP 1 and NTP 2 on March 24, 2010, in accordance with the terms of the contract. An
Alternative Bid NTP was granted on May 7, 2010; and NTP 3 was issued on November 24, 2010.
183A TURNPIKE - PHASE II
Quarterly Construction
Progress Report
No. 6
Page 5/16
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