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South Carolina and Georgia communities need locally informed strategies to align infrastructure capacity, asset condition, capital investment, and funding with continued growth.
Growth is creating new opportunities across the Southeast. New residents support local businesses, expand the workforce, and increase demand for housing and services. Business and industrial investment can strengthen tax bases, create jobs, and help communities pursue long-term economic goals.
However, the infrastructure equation changes as communities grow. More residents and development can increase demand for drinking water, wastewater treatment, sewer conveyance, stormwater management, roads, public facilities, and other essential services.
South Carolina and Georgia demonstrate the scale of that change. South Carolina’s population reached approximately 5.57 million in 2025, an 8.8% increase from its April 2020 estimate base. Georgia reached approximately 11.3 million residents, representing 5.5% growth over the same period per the U.S. Census Bureau.
Growth is a regional trend. Its infrastructure effects, however, must be understood system by system and community by community.
Growth Does Not Follow One Pattern
Communities across the Southeast are not experiencing growth in the same places or for the same reasons. Some are managing new housing and commercial development near established metropolitan areas. Others are responding to industrial investment, coastal growth, expanding tourism, or development extending into areas that were recently more rural.
South Carolina recorded the nation’s fastest percentage population growth between July 2024 and July 2025, increasing by 1.5% and adding nearly 80,000 residents. Net domestic migration accounted for 66,622 of that growth. The South Carolina Department of Employment and Workforce also noted that growth pressures are not distributed equally across the state.
Statewide growth figures establish the broader trend, but they do not show a utility director where a sewer bottleneck may emerge, tell a finance director when a major investment will be needed, or identify which assets pose the greatest risk. Those questions require a more detailed local picture.
Constraints Can Develop Inside the System
A community may appear to have sufficient treatment capacity overall while still facing limitations in a specific sewer basin, water pressure zone, pump station service area, transmission line, or development corridor.
Capacity can also be affected by asset condition, inflow and infiltration, storage, pressure, peak demand, operational practices, regulatory requirements, and the location or timing of proposed development. A permitted capacity figure is important, but it does not always reveal how the entire system will perform as conditions change.
South Carolina’s 2026 infrastructure fact sheet identified approximately $20.2 billion in drinking water needs and $31.9 billion in wastewater needs. Georgia’s 2024 infrastructure report card gave drinking water a C+, while wastewater and stormwater each received a C-. These assessments reflect the broader need to balance new capacity with maintenance, rehabilitation, resilience, and sustainable funding for existing systems.
Seeing these issues early gives communities more time to evaluate alternatives rather than allowing urgency to determine the project schedule.
Establish a Reliable Infrastructure Baseline
Before a community can plan for growth, its leaders need a shared understanding of existing conditions.
That baseline may begin with questions such as:
- What assets does the community own, and where are they located?
- What condition are those assets in?
- How much usable capacity is available?
- Where are operational or service-level concerns developing?
- How could planned growth change system demand?
- Which projects will be needed, and when?
GIS and infrastructure asset management can organize asset locations, attributes, condition information, inspection records, and maintenance history. This provides a clearer foundation for understanding risk and prioritizing future work.
Hydraulic modeling can then help water and wastewater operators evaluate existing system performance, test development scenarios, identify possible constraints, and compare potential improvements before making major investments.
The objective is not simply to collect more data. It is to turn available information into a practical understanding of what growth means for the community’s systems.
Connect Asset Needs with Project Timing
Infrastructure planning must account for both new demand and the assets already serving residents.
Lifecycle planning helps local governments evaluate condition, risk, expected service life, maintenance strategies, and long-term investment scenarios. Communities can use that analysis to explore the consequences of different funding levels and determine whether an asset should be maintained, rehabilitated, or replaced.
These findings can inform a capital improvement plan that defines project priorities, preliminary costs, implementation timing, and potential funding sources. A strong CIP connects technical need with financial capacity and gives staff, elected officials, and the public a clearer explanation of why certain projects should move forward first.
This connection is particularly important when growth-related improvements must be coordinated with the rehabilitation of existing infrastructure. One project may address immediate capacity, while another reduces operational risk or prevents a more expensive failure.
Build the Strategy Around Local and State Conditions
The planning framework may be consistent across the Southeast, but the implementation strategy cannot be one-size-fits-all.
South Carolina and Georgia have different regulatory agencies, permitting processes, utility structures, funding programs, application requirements, and governance considerations. Communities within each state also vary in staffing, financial capacity, service-area characteristics, adopted plans, and development expectations.
A useful infrastructure strategy must reflect those differences. It should connect engineering and system performance with local policies, affordability, rates and revenues, grant and loan eligibility, debt capacity, and realistic project schedules.
WithersRavenel’s local government consultants bring together utility engineering, hydraulic modeling, GIS, infrastructure asset management, lifecycle planning, capital improvement planning, and funding and finance strategy. WithersRavenel has helped secure more than $1.1 billion in public funding for government clients across the Southeast, supporting investments in utilities, stormwater, disaster recovery, transportation, parks, economic development, and other infrastructure needs.
Preserve Options Before Growth Sets the Schedule
Infrastructure readiness is ultimately about preserving community choice.
When local leaders understand system capacity, asset condition, future demand, project timing, and financial options, they can make more deliberate decisions. They can better support housing and economic development, prepare projects before funding opportunities open, communicate priorities to elected officials, and reduce the risk of moving directly from growth to crisis response.
The goal is not to predict every future condition perfectly. It is to create enough visibility to recognize emerging constraints and act while multiple solutions are still available.
