Pomona Quarry Dam Upper

Long Branch-Tr· Guilford, North Carolina· Earth·
Low Hazard Other Private

Key Takeaway

Pomona Quarry Dam Upper is classified as low hazard in North Carolina. Its primary use is other.

Physical Details

Dam Length230 ft
Dam TypeEarth
Max Storage57 acre-ft
Normal Storage52 acre-ft
Surface Area5 acres
Drainage Area25 sq mi
Max Discharge160 cfs
NID IDNC02796

Safety Information

Low Hazard

No probable loss of human life and low economic/environmental losses expected.

Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?

Emergency Action Plan: No
Last Inspection: February 9, 2023
State Regulated: Yes
Regulatory Agency: NCDEQ, DEMLR, Dam Safety Program

Ownership

Martin Marietta Materials, Inc.

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Pomona Quarry Dam Upper?

Pomona Quarry Dam Upper is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Pomona Quarry Dam Upper?

Pomona Quarry Dam Upper is owned by Martin Marietta Materials, Inc. (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

What is the primary purpose of Pomona Quarry Dam Upper?

Pomona Quarry Dam Upper serves the following purposes: Other. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

When was Pomona Quarry Dam Upper last inspected?

Pomona Quarry Dam Upper was last inspected on February 9, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.

Data from the National Inventory of Dams (NID) maintained by the US Army Corps of Engineers. Dam conditions may have changed since the last update. This site is not affiliated with USACE. Do not use for emergency planning — contact your local dam safety program.