were created, along with modifications to the existing routes in Virginia and the establishment of USBR 1 in New England. U.S. Bicycle Route 1 now has an additional run from the state of Maine to New Hampshire. U.S. Bicycle Route 1A is a sea-side alternate route for USBR 1 in Maine. U.S. Bicycle Route 8 runs from Fairbanks, Alaska, along the Alaska Highway, to the Canadian border. U.S. Bicycle Route 108 runs from its parent route in Tok, Alaska, to Anchorage. U.S. Bicycle Route 208 follows the Haines Highway from the Alaska Marine Highway terminal in Haines to the Canadian border. U.S. Bicycle Route 20 runs from the St. Clair River through the state of Michigan to Lake Michigan. U.S. Bicycle Route 87 follows the Klondike Highway from the Alaska Marine Highway terminal in Skagway to the Canadian border. U.S. Bicycle Route 95 follows the Richardson Highway from Delta Junction, Alaska to the Alaska Marine Highway terminal in Valdez. U.S. Bicycle Route 97 is entirely within Alaska, and it runs from Fairbanks, through Anchorage, to Seward. In 2012, the FHWA approved the use of an alternative U.S. Bicycle Route marker design on an interim basis. The alternative design departs from the longstanding "acorn" shape in favor of a Reuleaux triangle placed over a green background. , the FHWA has given 13 states interim approval to use the alternative design. Across 2013, several other additions to the system were made. After approval in 2012, signage for USBR 45 in Minnesota was completed in the summer. An expansion of USBR 76 into Missouri was signed in October, and both Tennessee and Maryland entered the system on November 5 with USBR 23 and USBR 50, respectively. Florida has also begun planning on four bicycle routes, including its stretch of USBR 1 and USBR 90. List of routes , there are 31 official parent routes in varying stages of completion. In areas where a specific route has not been approved by AASHTO, there is only a prioritized corridor. The 24 existing subsidiary and alternate routes are grouped with their one- or two-digit parents. Approved or signposted routes are located in the District of Columbia and 33 states: Alaska, Arizona, California, Connecticut, Delaware, Florida, Georgia, Kentucky, Idaho, Illinois, Indiana, Kansas, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, Nevada, New Hampshire, New York, North Carolina, North Dakota, Ohio, Oklahoma, Pennsylvania, Tennessee, Utah, Vermont, Virginia, Washington, Wisconsin, and