CARBONDALE – Budget shortfalls for valley transportation could slim the “Hog.”Weekend bus service between Rifle and Glenwood Springs, known as the Grand Hogback route, is just one of the proposed casualties of Roaring Fork Transportation Authority budget cuts.The valley transportation agency is projecting a 2004 budget shortfall of $1.14 million.Even if the cuts are implemented, RFTA would still be short $478,000 in 2004, according to the preliminary budget. The list of other service cuts proposed in the preliminary draft of the 2004 RFTA budget also includes:-Reducing valley bus service from its current schedule of 4:35 a.m. to 2:15 a.m. down to 6 a.m. to 12:15 a.m. -Dropping winter season Snowmass Village fare runs from two runs per hour down to one run per hour. -Cutting the 11 a.m. and 1 p.m. daily trips between Rifle and Glenwood Springs. -Axing summer and winter service for Woody Creek. -Reducing some valley-direct service between downvalley locations and Snowmass Village during the winter season. Other cuts might include RFTA’s advertising budget, legislative assistance, training, purchased services from Pitkin County, the bus rapid transit environmental study and design, building repairs and maintenance, trail construction and the maintenance manager position.