NWPX Infrastructure, Inc. — Director's Dealing 2010

Mar 16, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: NORTHWEST PIPE CO (NWPX)
CIK: 0001001385
Period of Report: 2010-03-15

Reporting Person: Welty Stephanie (CFO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-03-15	Common Stock	M	344	—	Acquired	1613	Direct
2010-03-15	Common Stock	F	86	$24.14	Disposed	1527	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2010-03-15	Restricted Stock Units	$	M	344	Disposed		Common Stock (344)	Direct

Footnotes

F1: Represents shares acquired pursuant to vesting of Restricted Stock Units granted in 2009.

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 3 equal installments on March 15, 2010, March 15, 2011 and March 15, 2012.