List of county roads in Monroe County, Florida

County Road 5A is Flager Avenue from White Street to Roosevelt Boulevard (SR A1A) in Key West. Route description Flagler Avenue begins at White Street in Key West and runs northeast. Half a mile later, it intersects First Street and Bertha Street. First Street runs north to U.S. Highway 1 (US 1) and Bertha Street runs south to SR A1A. Continuing east, Flagler Street runs just to the north of Key West International Airport before terminating at Roosevelt Boulevard (SR A1A) just south of US 1 (Overseas Highway). Major intersections The entire route is in Key West. ==County Road 905==

County Road 905 is Key Largo Drive from US 1 to the Ocean Reef Club near Grayvik. Route description CR 905 begins at U.S. Highway 1 (US 1), also known as the Overseas Highway, in Key Largo. From US 1, it heads northeast along Key Largo. Nine miles later, it intersects CR 905A (Card Sound Road) which runs to the mainland over the Card Sound Bridge. CR 905 then continues northwest to the Ocean Reef Club on the north end of Key Largo. History The southernmost 8 miles of CR 905 was the original alignment of the Overseas Highway (which was originally designated SR 4A) along with Card Sound Road. The original Overseas Highway, which was the first vehicular access to the Florida Keys came into existence in the 1920s. The Overseas Highway was later designated US 1 in 1938. In 1944, US 1 was rerouted to its current alignment between Florida City and Key Largo via Jewfish Creek (along the former Overseas Railroad). After the realignment, the Card Sound Bridge was taken out of service and the route in northern Key Largo eventually became SR 905. In 1969, a new Card Sound Bridge was built with a realigned Card Sound Road being designated SR 905A. SR 905 was realigned to the west near Card Sound Road in the 1970s. SR 905 was subsequently turned over to county control. Major intersections ==County Road 905A==

County Road 905A is Card Sound Road from the Miami-Dade County line at the Card Sound Bridge to CR 905. It was formerly designated SR 905A. Route description Card Sound Road begins at CR 905 in North Key Largo. From here it heads west and crosses the Card Sound Bridge to the Florida mainland. Once across the bridge, it enters Miami-Dade County where it continues as CR 905A to US 1 near Florida City. History Card Sound Road was the original alignment of US 1 prior to 1944. When US 1 was rerouted to its current alignment between Florida City and Key Largo via Jewfish Creek (along the former Overseas Railroad), The original Card Sound Bridge was closed to traffic and was later destroyed by a fire. In 1969, the current Card Sound Bridge opened, which restored Card Sound Road as a through route. Though, the rebuilt Card Sound Road intersected SR 905 about 3000 feet north of the original road. Major intersections The entire route is in North Key Largo. ==County Road 931==

County Road 931 is the former designation for two discontinuous roads in Marathon. The eastern segment is 20th Street and 20th Street Ocean, which previously connected Marathon with Boot Key. The western segment was Sombrero Beach Road from the Corte Del Brisas Traffic Circle to US 1 in Marathon. Route description The western segment of CR 931 began at US 1 in Marathon. It heads south and crossed Boot Key Harbor on the Boot Key Harbor Bridge. It continued to the south shore of Boot Key and turned east to the end of Boot Key at Sister's Creek. This segment is largely abandoned since the closure of the Boot Key Harbor Bridge in 2008. The eastern segment of CR 931 began at a roundabout with Corte Del Brisas near Sombrero Beach. From here, it ran northwest to US 1 in Marathon. The route is now city controlled. History Both segments were formerly designated SR 931. The bridge was a single-leaf bascule bridge over Boot Key Harbor connecting Key Vaca with Boot Key. Sombrero Beach Road has since come under city control after Marathon was incorporated in 1999. In 2008, the Boot Key Harbor Bridge was closed to traffic due to lack of maintenance, severing CR 931 and eliminating the only vehicular access to Boot Key. The state, county, or city of Marathon did not want to finance repairs to the bridge due to the little activity on Boot Key. In 2010, the bridge's bascule span, which had been left in the open position since the closure, was removed. The rest of the abandoned bridge remains standing in Boot Key Harbor. ==County Road 939==

County Road 939 currently runs along Sugarloaf Boulevard on Lower Sugarloaf Key. The Overseas Highway (US 1) was later rerouted along the route of the Overseas Railroad in 1944. The 1920s-era wooden bridge over Tarpon Creek further east was subsequently destroyed by a fire and SR 939 was then closed to traffic between SR 939A and Pirate's Cove. The remaining segments of the road are now hiking trails. Remnant wooden pilings of the former bridge over Tarpon Creek still stand. Sugarloaf Boulevard has since been turned over to county control becoming CR 939. Major intersections ==County Road 939A==

County Road 939A is a spur route of CR 939 on Lower Sugarloaf Key and the Saddlebunch Keys. It notably serves Sugarloaf Beach. The road west of the current terminus of CR 939A to the west end of the Saddlebunch Keys was subsequently closed to vehicular traffic and is now the Lower Sugarloaf Key Trail. The road's original wooden bridge over Sugarloaf Creek, which separates Sugarloaf Key and the Saddlebunch Keys, was replaced with the current concrete bridge in 1968. The road was later turned over to county control, becoming CR 939A. ==County Road 940==

County Road 940 is Key Deer Boulevard on Big Pine Key. The Overseas Railroad was abandoned in 1935 and the Overseas Highway was rerouted to the former railroad corridor east of Big Pine Key in 1938. Key Deer Boulevard would then carry the Overseas Highway (US 1) between the new highway and the original highway until 1944, when US 1 was rerouted on to the former railroad east of Big Pine Key. The route was later designated SR 940 before becoming CR 940 when it was turned over to county control. ==County Road 941==

County Road 941 is Boca Chica Road on Boca Chica Key and Big Coppitt Key. Boca Chica Road was later designated SR 941 before becoming CR 941 when it was turned over to county control. ==County Road 942==

County Road 942 (CR 942) is Ocean Drive and East Shore Drive in Summerland Key. It begins at US 1 and heads south along East Shore Drive. It runs through a residential community before it turns southwest. At an intersection with West Shore Drive, CR 942 becomes Ocean Drive and runs to the south end of Summerland Key where it terminates at a cul-de-sac. The road was formerly designated SR 942. ==See also==