Collier Boulevard becomes a state road at the south end of the S.S. Jolley Bridge with the designation SR 951.

Further north, the road passes by some newer housing and country club developments and expands to six lanes before it intersects with US 41 (Tamiami Trail).

[1] After passing just east of the community of Golden Gate, Collier Boulevard continues north another six miles before coming to its northern terminus at CR 846 (Immokalee Road) just west of Orangetree.

The ferry service was discontinued in 1938 when the original Goodland Bridge was built further east and the road's importance diminished.

Present-day Capri Boulevard (CR 952) east to its connection with the Old Marco Road at Antigua street, was also built at this time and was designated as the southern end of SR 951.

[2] The northern section of Collier Boulevard from present-day SR 84 to Immokalee Road (CR 846) was built by 1960.

The state road designation of the northernmost 14 miles (23 km) of SR 951 were phased out in the 1980s as they were relinquished to county control.