Ownership Submission
FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
RUSSO DAVID J
   2. Issuer Name and Ticker or Trading Symbol
FOSTER L B CO [FSTR] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Sr. V.P., CFO & Treasurer
(Last)
(First)
(Middle)
L.B. FOSTER COMPANY, 415 HOLIDAY DRIVE		 3. Date of Earliest Transaction (Month/Day/Year)
08/10/2011
(Street)

PITTSBURGH, PA 15220		 4. If Amendment, Date Original Filed(Month/Day/Year)
 6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)		 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)		 4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)		 5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)		 6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)		 7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price
Common Stock               1,101.493 I 401(k) Trust Share Equivalents
Common Stock               683 (2) D  
Common Stock               1,293 (3) D  
Common Stock               1,021 (4) D  
Common Stock               994 (5) D  
Common Stock 08/10/2011   P   3,000 A $ 18.5 20,795 (6) D  

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)		 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)		 5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)		 6. Date Exercisable and Expiration Date
(Month/Day/Year)		 7. Title and Amount of Underlying Securities
(Instr. 3 and 4)		 8. Price of Derivative Security
(Instr. 5)		 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)		 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)		 11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Option to Buy $ 4.1             12/10/2002(7) 12/09/2012 common 1,000   1,000 D  
Performance Share Units (1)               (1)   (1) Common (1)   3,877 (8) D  
Performance Share Units (1)               (1)   (1) Common (1)   3,062 (9) D  
Performance Share Units (1)               (1)   (1) Common (1)   2,981 (10) D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
RUSSO DAVID J
L.B. FOSTER COMPANY
415 HOLIDAY DRIVE
PITTSBURGH, PA 15220		       Sr. V.P., CFO & Treasurer  

Signatures

 /s/ Deborah J. Foster, attorney-in-fact for David J. Russo   08/10/2011
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) Not applicable.
(2) Not vested and non-voting until March 6, 2012.
(3) Not vested and non-voting until March 4, 2013.
(4) Not vested and non-voting until March 3, 2014.
(5) Not vested until March 14, 2015.
(6) Includes 7,500 shares which are unvested with 2,500 shares becoming vested on each May 28, 2012, 2,500 shares on May 28, 2013 and 2,500 shares on May 28, 2014.
(7) 25% became vested on 12/10/03 and an additional 25% became vested on each of the next three anniversaries.
(8) (0 - 7754 shares). Performance share units will convert into common stock based on Company's performance against financial metric for calendar years 2009-2011, inclusive. Stock awarded shall range from 0-2 for each performance share unit.
(9) (0 - 6124 shares). Performance share units will convert into common stock based on Company's performance against financial metric for calendar year 2010-2012, inclusive. Stock awarded shall range from 0-2 for each performance share unit.
(10) (0 - 5962 shares). Performance share units will convert into common stock based on Company's performance against financial metric for calendar year 2011-2013, inclusive. Stock awarded shall range from 0-2 for each performance share unit.

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