SECURITIES AND EXCHANGE COMMISSION
                             Washington, D. C. 20549

                                    FORM 8-K

                                 CURRENT REPORT
    Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

        Date of Report (Date of earliest event reported) August 25, 1999


                         WASHINGTON TRUST BANCORP, INC.
             (Exact name of registrant as specified in its charter)



             RHODE ISLAND                0-13091                05-0404671
(State or other jurisdiction of        (Commission           (I.R.S. Employer
 incorporation or organization)         File Number)         Identification No.)



      23 Broad Street, Westerly, Rhode Island                   02891
- --------------------------------------------------------------------------------
     (Address of principal executive offices)                (Zip Code)



        Registrant's telephone number, including area code (401) 348-1200



                                        N/A
- --------------------------------------------------------------------------------
(Former name,former address and former fiscal year,if changed since last report)





WASHINGTON TRUST BANCORP, INC.
FORM 8-K


Item 5.  Other Events
         On August 25,  1999,  Washington  Trust  Bancorp,  Inc.,  parent of The
         Washington   Trust  Company,   announced  that  it  has  completed  the
         acquisition  of Pier  Bank,  a Rhode  Island-chartered  community  bank
         headquartered in South Kingstown,  Rhode Island. Effective at the close
         of business on August 25,  1999,  Pier  Bank's two  branches,  in South
         Kingstown  and  Narragansett,  Rhode  Island,  will operate  under "The
         Washington Trust Company" name. Conversion of customer deposit and loan
         accounts  will take place on  September  24,  1999.  As a result of the
         acquisition,  Washington  Trust Bancorp,  Inc., had pro forma assets at
         June 30, 1999 of $1.077  billion.  Washington  Trust  Bancorp,  Inc. is
         headquartered in Westerly, Rhode Island.

         Attached  hereto as  Exhibit  99 is the press  release  announcing  the
         completion of the acquisition.



Item 7.  Financial Statements, Pro Forma Financial Information and Exhibits
         a.       None
         b.       None
         c.       Exhibits
                  Exhibit No.    Description
                  -----------    -----------------------------------------------
                      99         Press release of Washington Trust Bancorp, Inc.
                                 issued August 25, 1999.

                                   SIGNATURES
                                   ----------
Pursuant  to the  requirements  of the  Securities  Exchange  Act of  1934,  the
Registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
undersigned thereunto duly authorized.

                                                  WASHINGTON TRUST BANCORP, INC.
                                                            (Registrant)



Dated:  August 25, 1999               By:          David V. Devault
                                            ------------------------------------
                                            Name:  David V. Devault
                                            Title: Executive Vice President,
                                                   Treasurer and Chief
                                                   Financial Officer
                                                   (principal financial officer)