Infrastructure, energy, and water planning
How infrastructure steers growth, asset management, water supply and water rights, wastewater and stormwater, solid waste, energy siting, broadband, and fair siting.
Lesson 37 of 40 · about 23 minutes
Learning objectives
- Explain how infrastructure capacity shapes where and when growth happens, and how plans, the CIP, and extension policies connect.
- Describe asset management and why life-cycle costs matter more than construction costs.
- Summarize the planning issues in water supply, wastewater, and stormwater, including combined sewer overflows and stormwater permits.
- Distinguish riparian and prior appropriation water rights, and apply the solid waste hierarchy.
- Describe land use's role in energy planning, including renewable energy siting, electrification, and broadband.
- Recognize the equity questions in siting infrastructure and locally unwanted land uses.
Key concepts
Infrastructure shapes growth
Water, sewer, roads, energy, and broadband don't just serve development; they steer it. A sewer extension can open thousands of acres to subdivision, and a lack of capacity can stop growth entirely. That's why planners coordinate:
- the comprehensive plan's land use map with utility service areas (where the jurisdiction will extend water and sewer);
- level-of-service standards and concurrency or adequate public facilities rules (see Implementation programs, partnerships, and monitoring);
- the capital improvements program, which schedules the investments (see Capital planning and public finance); and
- extension policies: who pays for new lines (often the developer) and where extensions are allowed.
When an infrastructure plan and a land use plan disagree, the infrastructure usually wins, because private development follows capacity.

8 more sections follow in the full lesson.
Key terms
- Utility service area: The area where a jurisdiction will provide or extend water and sewer service.
- Extension policy: Rules on where utility lines may be extended and who pays.
- Asset management: Managing infrastructure based on inventory, condition, remaining life, and life-cycle cost.
- Life-cycle cost: The total cost of an asset over its life, from construction through replacement.
- Deferred maintenance: Postponed repair or replacement that usually raises long-term cost.
- Combined sewer overflow (CSO): Untreated discharge when combined sewage and stormwater exceed system capacity.
- Impervious surface: Pavement, roofs, and other surfaces that prevent water from soaking into the ground.
- MS4 permit: A stormwater permit for a municipal separate storm sewer system.
- Wellhead protection: Controls on land uses near public water supply wells.
- Electrification: Shifting buildings and vehicles from fossil fuels to electricity.
- Decommissioning: Removing an energy facility and restoring the site at the end of its life.
- Dig once: A policy of installing conduit or utilities whenever streets are opened.
- LULU: A locally unwanted land use, such as a landfill or treatment plant.
- Riparian rights: Water rights held by owners of land along a water body, allowing reasonable use.
- Prior appropriation: Water rights based on first diversion to beneficial use: "first in time, first in right."
- Waste management hierarchy: Reduce and reuse, then recycle and compost, then recover energy, then dispose.
- RCRA: The Resource Conservation and Recovery Act of 1976, which governs solid and hazardous waste.
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