Sentence:  Sturdy and strong after more than a century of continuous use , the old covered , wooden bridge that <WSD>spans</WSD> the Tygartis Valley River at Philippi will have a distinctive part in the week-long observance of the first land battle of the Civil War at its home site , May 28 th to June 3 rd . 
Meaning of the word marked with <WSD> tags:  to cover or extend over an area or time period