 At Oak Street, another concurrency joins US 221, specifically SR 135 Bypass then two blocks later turns north onto North College Street, which is also the southern terminus of SR 11 Bypass.US 129/221/SRs 11/31/37/122 leaves the city limits at the bridge over "Big Creek" which is a tributary of the Alapaha River.These routes cross that river itself using the Captain Henry Will Jones Bridge.