NWPX Infrastructure, Inc. - Director's Dealing 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: NORTHWEST PIPE CO (NWPX)
CIK: 0001001385
Period of Report: 2010-08-18

Reporting Person: WINSOR JENKINS (VP, Human Resources)

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-08-18	Common Stock	M	73	—	Acquired	1062	Direct
2010-08-18	Common Stock	F	18	$15.68	Disposed	1044	Direct

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2010-08-18	Restricted Stock Units	$	M	73	Disposed		Common Stock (73)	Direct

F1: Represents shares acquired pursuant to vesting of Restricted Stock Units granted in 2008.

F2: Represents shares withheld by the issuer for payment of taxes incurred upon vesting event consistent with company policy.

F3: Each Restricted Stock Unit represents a contingent right to receive one share of Northwest Pipe Company common stock.

F4: The Restricted Stock Units vest in installments as follows: 40% on August 18, 2009, 40% on August 18, 2010 and 20% on August 18, 2011.