Standard&Poor's Ratings Services assigned its 'AAA' long-term rating to West Des Moines, Iowa's series 2013A general obligation (GO) bonds. At the same time, we affirmed our 'AAA' long-term rating and underlying rating (SPUR) on the city's debt outstanding. The outlook is stable. The ratings reflect our view of the city's: Status as an employment and residential center for the entire Des Moines metropolitan area; Access to the large and diverse Des Moines area economy; Strong incomes and extremely strong market value per capita; and Very strong financial position, coupled with significant revenue-raising flexibility. Unlimited ad valorem taxes levied on taxable property in the city secure the bonds. Series 2013A bond proceeds will be used to finance capital improvements