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Liberty Heights Community Infrastructure Improvements
Gwinnett County, Georgia

Client Challenge:

Upgrade the infrastructure system of a 50 year old subdivision while minimizing the impact to individual residents and maintaining resident involvement.  Upgrade included new curb and gutter, sidewalks, stormwater collection system as well as sanitary sewer and water distribution improvements.

 
PRIME Solution:

Designed improvements to be within existing right-of-way to minimize property acquisition/encroachment.  Conducted review/public input sessions at local church to obtain/maintain public participation.  $10 million worth of improvements phased over a four-year period to minimize impact on existing residents.


Prime Engineering provided surveying, detailed engineering design, and construction administration for infrastructure improvements in the Liberty Heights Community.  Funded in part by a Community Development Block Grant (CDBG), the work entails addressing aging infrastructure on 26 separate streets. 

  • Design services include developing design schedule, plan preparations and revisions, progress meetings, preparation of bid documents, easement / permit plats /drawings, public / property owner meetings, and providing construction timetable schedule and cost estimate.  
  • Surveying services included research of property, ownership and utility records, detailed topographic as-built data for utility line routing options.  Survey and research included water distribution lines, sanitary sewer lines, and storm drainage piping.  Provided surveys for sidewalk and roadway improvements and prepared plats for right-of way easement acquisitions.
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Water
Sanitary Sewer
Stormwater
Phase I
6,720
 
11,820
Phase II
5,124
667
8,515
Phase III
5,875
1,427
5,570
Phase IV
3,850
2,750
3,752
Phase V
485
 
4,429
Total
22,054
4,811
34,086
  • Sanitary Sewer System Improvements consisting of design for repair, replacement, and installation of new 8-inch & 10-inch sewer lines
  • Storm Drainage includes addition of curbs and gutters, replacement of culverts and piping, street lowering, and hydraulic and hydrologic calculations
  • Sidewalks / Roadway Improvements – 46,200 linear feet
  • Right of Way / Easement Acquisition Assistance
  • Water Distribution Improvements encompassed design of approximately 21,220 linear feet of 8-inch ductile iron pipe.  Water line design and installation was broken into the following phase



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