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Hydraulics Research Park Annexes

Hydraulics Annex One

Hydraulics Oakdale Annex One.

Hydraulics Oakdale Annex One.

Hydraulics Annex One (HA1) has since 1979 provided unobstructed open space for very large models. Amenities include overhead doors at each end of the building and a sump with a capacity exceeding 50,000 gallons and up to 150 Hp of pumping capability. HOA1 often houses fish passage model studies.

Hydraulics Annex Two

Hydraulics Oakdale Annex Two.

Hydraulics Oakdale Annex Two.

Hydraulics Annex Two (HA2), constructed in 1995, features 24-foot-high clear-span construction and large overhead doors, so very large models can be built and tested without interference from roof support columns. HA2 is also home to IIHR’s new wind tunnel, constructed in 2014. This building has a 75,000-gallon sump pit for water storage. HOA2 has housed large models for fish passage studies and storm water conveyance structures, but is available for other models of various sizes.

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Last modified on September 17th, 2015
Posted on July 6th, 2010

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