I could be wrong.
Found when demolishing the boardwalk. Hidden in wood of structure.
Went to Fish Creek Linear Park for lunch today.
01 Oct 2013.
Lombard Rd, Calvert, Cecil Co, MD.
Found on siding.
ID confirmed by Laura P.:
Neoscona crucifera is an orb-weaver spider in the family Araneidae. It is found in the United States from Maine to Florida in the east, to Minnesota in the Midwest, to Arizona in the southwest, and in Mexico. Its common names include Hentz’s orbweaver, and barn spider, though the latter nickname suggests the confusion that can result from using common names for spiders, as the name "barn spider" is also commonly used for the species Araneus cavaticus.