spanning
span-ning
verb
Extending or reaching across a space, gap, or period of time.
"The new bridge is spanning the river."
noun
The act of extending or covering a particular distance or duration.
"The spanning of the gap was challenging."
Thesaurus
Synonyms: straddle, span, bridge, brace, couplet, distich, duet, yoke, duo, dyad, couple, pair