Exhibit 99.1

Washington Trust Bancorp, Inc.

Investment Portfolio – Supplemental Information

	June 30, 2008
	Credit		Amortized		Unrealized					Estimated
(Dollars in thousands)	Rating		Cost		Gains		Losses			Fair Value
Trust Preferred Securities
Collateralized Debt Obligations		A	$	7,479	$	–	$	(1,744	)	$	5,735
Individual Name Issuers (1):		AA		15,411		–		(3,128	)		12,283
		A		13,188		–		(2,441	)		10,747
		BBB		1,907		–		(314	)		1,593
Total Trust Preferred Securities			$	37,985	$	–	$	(7,627	)	$	30,358
Corporate Bonds		BBB	$	1,746	$	–	$	(13	)	$	1,733

  (1) - We own various series of trust preferred securities issued by several corporate financial institutions.  The following amounts represent the percentages greater than 10% of the total estimated fair value of trust preferred securities holdings for individual name issuers, including, where applicable, the impact of mergers and acquisitions of issuers subsequent to original purchase:  25%, 15%, 13% and 11%.

	June 30, 2008
	Amortized		Unrealized					Estimated
(Dollars in thousands)	Cost		Gains		Losses			Fair Value
Common and Preferred Stocks
Common Stock	$	1,458	$	337	$	(270	)	$	1,525
Preferred:
FNMA Preferred Stock		713		–		(11	)		702
FHLMC Preferred Stock		358		–		(23	)		335
Other Preferred (financials)		4,064		–		(365	)		3,699
Other Preferred (utilities)		1,000		–		(113	)		887
Total Preferred		6,135		–		(512	)		5,623
Total Common and Preferred Stocks	$	7,593	$	337	$	(782	)	$	7,148

The Corporation recorded impairment charges to earnings for equity securities deemed to be other-than-temporarily impaired in the amounts shown in the following table:

(Dollars in thousands)
	Three		Six
Periods ended June 30, 2008	Months		Months
FNMA and FHLMC Preferred Stock	$	430	$	430
Other Preferred (financials)		719		1,577
Total	$	1,149	$	2,007