Supplemental Info - Aerial Services FY24.pptx

Supplemental Information

W912DW-24-R-OYWA

Aerial Support Services SATOC At Yakima Training Center, Washington

Lindsey Gay – Project Manager USACE Seattle District 17 June 2024

US Army Corps of Engineers

BUILDING STRONG®

Project Overview This will be awarded as an Indefinite Delivery Indefinite Quantity (IDIQ) Single Award Task Order Contract (SATOC):

execute the PWS requirements conduct aerial spraying and aerial seeding

The intent of this project is to provide helicopter support necessary to apply Government furnished herbicides and seed materials at JBLM Yakima Training Center (YTC).

Tasks to support the Aerial Support Services SATOC Aerial Herbicide Application to Linear Features (e.g., Firebreaks) Aerial Herbicide Application to Block Areas Aerial Seeding Grass Mixtures Aerial Seeding Shrub Mixtures

Terrain Considerations at YTC The terrain at JBLM YTC is highly variable.

It ranges from relatively flat valley bottoms to extremely rugged ridges flanked with steep lateral slopes that extend between ridge tops and valley bottoms.

Throughout all areas of the installation the terrain varies and includes very sharp and irregularly occurring undulating terrain.

Firebreaks (linear features) occur throughout the installation on the full range of terrain features (e.g., ridge tops, valley bottoms and flanks of ridges).

A common critical feature associated with such firebreaks includes sharp “Vee” shaped drainage bottoms with varying angles and slope distances that intersect firebreaks at varying locations (Note – these features are often very tightly confining in nature).

The approach and departure angles at these sites are often oriented perpendicular to such steep slopes.

Typical approach and departure angles into and out of such drainage crossings is also highly variable ranging from less than 20% to over 60%.

Terrain Considerations at YTC Additional terrain conditions include Firebreaks with short and tight turns immediately adjacent to steep terrain features, high voltage power lines that are either in close proximity or intersect firebreaks, public highways, and sites adjacent to the installation boundary.

Tight turn areas necessitate hard and immediate starts, stops, and sharp changes of direction within very short distances.

At sites near the installation boundary, applications must not result in any pesticides being applied to, or allowed to drift to off-post lands.

While applying pesticides to the wide variety of sites on JBLM YTC, the Contractor shall conduct such treatments in full compliance with all operational constraints (e.g., maintain the required elevation above ground throughout all points along treatment routes/sites) to ensure even and consistent applications.

See slides 5 – 21 for photo examples of terrain.

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