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8
Shaping the Solution
To develop an effective mitigation strategy, the CFD study focused on designing and positioning a wind
fence to minimize fugitive dust emissions from the coal stockpiles at Dominion Terminal Associates (DTA)
and Kinder Morgan Bulk Terminals (Piers IX & X). The placement and configuration of the wind fence
were guided primarily by site-specific meteorological data, particularly the wind rose at Dominion Terminal
(on site), alongside the terminals' geometry and the locations of the areas most impacted by dust.
Analysis of the wind rose for the Hampton Roads/Newport News area revealed that the predominant wind
direction is from the southwest (SW), with a significant secondary component from the south-southeast
(SSE) and a tertiary contribution from the west-northwest (WNW). These directions align with regional
coastal and bay-influenced patterns, where SW winds are most frequent and often strongest, especially
during transitional seasons, while SSE and WNW flows contribute to episodic dust transport events.
Primary consideration (SW winds): These blow from the southwest toward the northeast,
directing potential dust plumes from the stockpiles across the terminals and toward residential
areas to the northeast and east of the facilities.
Secondary (SSE winds): Winds from the south-southeast push dust northward/northwestward,
potentially impacting communities directly north of the terminals.
Tertiary (WNW winds): Winds from the west-northwest could carry dust southward, affecting port
areas and any sensitive receptors to the south of the terminals.
NE winds (minor mode) primarily direct dust over the James River and were not modeled as
they pose negligible community impact
Given the terminals' waterfront location along the James River (with stockpiles generally oriented along
the shoreline and open yard areas), the wind fence design prioritized blocking or redirecting the most
frequent and impactful wind directions while accounting for operational constraints such as rail access,
stacker/reclaimer movement, ship loading activities, and vehicle/equipment pathways to the best of our
ability.
Figure 1 (Google Earth View of Area with Wind Rose)
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