Improvement Alternatives

Transcription

1 CHAPTER IX Improvement Alternatives INTRODUCTION Chapter IX presents the results of the scoring and ranking of the transportation projects for Garfield County. Chapter IX also groups the projects into transportation alternatives. Each of the transportation alternatives provides a different approach to meeting the needs of the Garfield County residents. The alternatives are utilized in the preliminary transportation plan to develop the final project groups that will best fit the community s needs now and into the future. TRANSPORTATION ALTERNATIVES The transportation alternatives are based upon several strategies that range from no changes to implementing all projects. The transportation alternatives are: no build, maintenance, existing need, future level of service improvements, modal choice, and preferred improvement. As the number of projects increase in each alternative, so does the cost increase for each alternative. The following is a description of the transportation alternatives and the projects included in each alternative. No Build The no build alternative assumes that Garfield County will not have the funding for current or future transportation improvements. Figure IX-1 presents the level of service (LOS) and surface condition deficiencies for the county in the year 2025 based upon the no build alternative. Figure IX-1 shows that a greater amount of roadways will be deficient by the year 2025 than are deficient currently. Page IX-1

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3 Figure IX-1 No Build Alternatives Deficiencies in Year 2025 N Deficiencies in 2025 County Roads US and State Highways County Boundary Parachute Rifle Silt New Castle.-, 70 Glenwood Springs.-, 70 Carbondale Miles

4 Improvement Alternatives Maintenance The maintenance alternative assumes that Garfield County will improve the roadways that are deficient due to poor surface conditions. The county will not improve the roadways that are deficient due to poor level of service. Table IX-1 lists the maintenance transportation projects, along with the score and estimated cost for each project. The projects were scored using the criteria from Chapter VIII. The scores ranged from 7 points to points. The projects with the highest scores should be completed first, as they are given priority importance. The total estimated cost for the maintenance projects is $24.1 million over 20 years (in year 2004 dollars). The total cost is based upon the per-square-yard cost to repair asphalt, chipseal, and gravel roadways (which ranges from $1.50 per square yard for overlay to $7 per square yard for asphalt) according to the Garfield County Roadway and Bridge Department. Another assumption made in the maintenance alternative is that all un-improved roadways which will become deficient over the next 20 years will be repaired by upgrading them to gravel roadways. Figure IX-2 presents the roadways that will be deficient in the year 2025 based upon the maintenance alternative. The amount of deficient roadways that have been improved under the maintenance alternative is significant. While this is true, the key connections with the state highway system are still congested and deficient. This deficiency will affect the mobility of residents to access work, shopping, and other destinations. In summary, the amount of deficient roadways is small in comparison with the other alternatives, but the roadways that are deficient in the maintenance alternative are key to the operation of the transportation system within Garfield County. Page IX-5

5 Page IX-6 Name BATTLEMENT PY COMANCHERO TR COMANCHERO TR NAVAJO ST COMANCHERO TR CHIPPERFIELD LN EAST DIVIDE CREEK RD SPRUCE CREEK RD 334 DIVIDE CREEK RD DIVIDE CREEK RD SPRUCE CREEK RD SILT MESA RD RAMS HORN LAKE RD 2 NORTH HASSE LN SILT MESA RD DIVIDE CREEK RD NORTH HASSE LN MARVIN RD ELK CREEK RD EAST DIVIDE CREEK RD CARDIFF CT HUNTER MESA RD FRAVERT RESERVOIR RD WEST DIVIDE RD DRY HOLLOW RD RIVERBEND DR RIVERBEND DR UKELE LN WILDWOOD LN HIDE AWAY LN HOSPITAL HILL RD GARDNER LN PONDEROSA CI SATANK RD SECOND ST MICHAELS CI UKELE LN RALEY RD To grand valley wy BGN BGN closed gate COLI WYE beg locked gate lg end gate (blm sign) y in rd NFOR nfor cattle guard cr A /cg COLI BGN ECL DONEGAN RD RRX CL SILT Table IX-1 Maintenance Alternatives From str (bridge) END end stream nfor (cattle guard) CG GT 334A 3 BGN stream bed/lower end going south gate (blm-sign) locked gate WYE end rd continues (stop) cds near foot bridge 352 SH13 BYPASS STR BRIDGE END 3RD ST gate (yellow) STR bridge CLOSED CL RIFLE CL SILT Surface Type Width (ft) Cost $7,25 $,760 $,35 $,46 $7,71 $77,2 $4,42 $40,303 $2,217 $3,360 $71,637 $0,72 $136,0 $23,242 $17,2 $236,24 $175,16 $4,255 $20,442 $162,201 $3,51 $640,0 $,756 $0,71 $,645 $20, $46,1 $,450 $7,031 $42,675 $13,650 $1,167 $2,01 $,024 $4,755 $5 $7,34 $36,70 $,73 $23,653 Score

6 Page IX-7 Name RIVERBEND DR OLD CR2 YELLOW SLIDE RD PINON DR PONDEROSA DR SWEETWATER LAKE RD MOUNTAIN SHADOW DR MEL RAY RD RIVERBEND DR AIRPORT RD MOUNTAIN SHADOW DR RAMSEY GULCH RD CHAPPARAL CI SAGE CI PONDEROSA DR HUNTER MESA RD UKELE LN SUNLIGHT SKI AREA RD UNDERWOOD LN UNDERWOOD LN UNDERWOOD LN PONDEROSA DR PONDEROSA DR AIRPORT RD AIRPORT RD AIRPORT RD HADLEY GULCH RD MIDDLE MOUNTAIN BAR HL RD BAR HL RD RAMSEY GULCH RD UNCLE BOB MOUNTAIN RD MESA DR MARVIN RD AIRPORT RD COLORADO RIVER RD SLAUGHTER GULCH RD MARION MINE RD To B MOUNTAIN SHADOW DR PONDEROSA DR 335 CL GLENWOOD cds DONEGAN RD str cattle guard SH6 sunlight ski area cg (green) (big blk rock on l side of road) t in road 130A PONDEROSA CI A SAGE CI 160 fork in the road COLI 163 CL GLENWOOD FORK cds widch nfor gate open Table IX-1 Maintenance Alternatives, continued From gate 133 A SAGE CI END LOCKED CHAIN END 130A PONDEROSA CI 333A 236 END t in road cg (green) 133B MOUNTAIN SHADOW DR 133 MEL RAY RD CL GLENWOOD 32 2 CL GLENWOOD END CL GLENWOOD rd continues end (y in rd) 160 lg locked gate Surface Type Width (ft) Cost $,731 $,6 $62,15 $1,357 $20,24 $30,725 $,733 $,13 $5,054 $45,47 $2,17 $,772 $4,76 $6,76 $,27 $272,02 $16,21 $2,666 $2,02 $2,774 $5,334 $5,32 $,73 $6,3 $244,40 $3,654 $26,2 $15,643 $0,35 $13,431 $342,46 $173,651 $65,235 $,4 $2,151 $366,420 $21,775 $2,664 $3,20 $,72 Score

7 Page IX- Name LAKE CREEK RD KING RD CLINETOP COW CAMP RD DEEP LAKE EAST RD COW LAKE RD GRAVEL PIT RD DIVIDE CREEK RD BRUSH CREEK RD KINDALL RD BAR HL RD LAKE CREEK RD MAIN ELK RD BISON LAKE RD LITTLE BOX CANYON RD BUTLER CREEK RD BAR HL RD 2 BISON LAKE RD BAR HL RD BAXTER PASS RD MAIN ELK RD SCARROW RD SHAEFFER RD BAXTER PASS RD HEART LAKE RD GRAVEL PIT RD TROJAN LN KIMBALL CREEK RD ROAN CREEK DR DIVIDE CREEK RD ROAN CLIFFS RD Source: Garfield County 2003, To USFS SH COLI white river nfor sign & gate cr COLI LOCKED GATE CATTLE GUARD 207 BEGIN Table IX-1 Maintenance Alternatives, continued From END very poor road continues end - piled timbers to right - road continues END top of hill rd continues width change 343 gate NFOR LOCKED GATE USFS end (cds) 230 cr END COLI COLI 6 300a END y intersection in rd 2 LOCKED GATES Surface Type Width (ft) Total Cost Cost $7,3 $325,065 $173,5 $26,45 $544,733 $32,5 $276,20 $653,63 $340,62 $76,564 $2,362 $1,0,5 $324,651 $66,064 $63,407 $525,565 $251,662 $7,064 $75,653 $7,72 $4,266 $41, $4,37 $1,32,476 $32,762 $2,61 $503,70 $1,404,527 $33,704 $2,031 $1,246,27 $24,0,352 Score 7

8 Figure IX-2 Maintenance Alternative Deficiencies in Year 2025 N Maintenance Alternative Deficiencies County Roads US and State Highways County Boundary Parachute Rifle Silt New Castle.-, 70 Glenwood Springs.-, 70 Carbondale Miles

9 Improvement Alternatives Existing Need The existing need alternative assumes that Garfield County will improve the roadways that are currently deficient in LOS. The county will not improve the roadways that are currently deficient due to surface condition or the roadways that will become deficient in the future. Table IX-2 lists the existing need transportation projects, along with the score and estimated cost of each project. The projects were scored using the criteria from Chapter VIII and were ranked within two categories widening and bridges. The scores ranged from points to 23 points. The projects with the highest scores should be completed first, as they are given priority importance. The total estimated cost of the existing need projects is $13.7 million over 20 years (in year 2004 dollars). The total cost for widening the roadways is based upon a $524 per linear foot cost according to the Garfield County Roadway and Bridge Department. This per linear foot cost does include the cost for additional right-of-way. Figure IX-3 shows the deficient roadways in the year 2025 based upon the existing need alternative. Figure IX-3 reflects that there are still significant deficiencies across the Garfield County transportation system with the existing need alternative. The deficiencies are mainly due to the poor surface conditions and future LOS deficiencies. There are significant areas where the LOS and surface condition are still deficient particularly near the urban areas, state highways, and the interstate highways. This could affect the viability of the major employment areas within Garfield County and cause leapfrog development which spreads out to avoid congested areas. Page IX-

10 Page IX- Roadway Name From SILT RIFLE COOP RR SIDING RD RRX DRY HOLLOW RD HARDWICK BRIDGE RD 6 Bridge Location Type Divid Creek Steel Divid Creek Steel Source:Garfield County 2003, To str Length (ft) Table IX-2 Existing Need Alternatives for Garfield County Roads Length (ft) 3, ,21 2, Width Surface Deck Square ft,570 4,00 Condition N/A GOOD GOOD Width_ USFT 55 Deficient Bridges 2000 State Insp YES YES Type of Improvement Total Cost Total Cost Grand Total Cost $1,53 $,45 $66,2 $61,23 $,713 Cost $5,0,60 $2,567,600 $7,52,20 $,50,3 Score Score Year Year Cost in the Year of Completion $20,51 $230,75 $13,250 $1,63,50 $2,2,0 Cost in the Year of Completion $6,400,4 $5,03,672 $,43,16 $13,701,6

11 Figure IX-3 Existing Alternative Deficiencies in Year 2025 N Existing Alternative Deficiencies County Roads US and State Highways County Boundary Parachute Rifle Silt New Castle.-, 70 Glenwood Springs.-, 70 Carbondale Miles

12 Improvement Alternatives Future Level of Service Improvements The future level of service improvements alternative assumes that Garfield County will improve only the roadways that have a current or future LOS deficiency. The county will not improve the roadways that are deficient due to poor surface condition. The future LOS improvements alternative is an addition to the existing alternative presented in the above section, and consists of a phased approach. Table IX-3 lists the future LOS improvements transportation projects, along with the score and estimated cost of each project. The projects listed in Table IX-3 are an addition to the projects from Table IX-2. The projects were scored using the criteria from Chapter VIII. The scores ranged from 16 points to 2 points. The projects with the highest scores should be completed first, as they are given priority importance. The total estimated cost of the future LOS improvements projects is $. million over the next 20 years (in year 2004 dollars). The total cost for widening the roadways is based upon a $524 per linear foot cost according to the Garfield County Roadway and Bridge Department. This per linear foot cost does include the cost for additional right-of-way. Figure IX-4 shows the deficient roadways in the year 2025 based upon the future LOS improvements alternative. By the year 2025, the number of deficient roadways due to poor surface condition increases (as in the no build alternative). The LOS improvements alternative only addresses the mobility of the regional and urban areas. Hence, the mobility and access to employment and shopping areas are improved. This alternative does not address the access to rural, local, or less developed areas throughout Garfield County. As presented in Appendix C, there are several intersections that would need turning lane improvements. The total estimated cost of the turn lane improvements is $1.2 million. This additional cost is reflected in Chapter IX. Appendix C provides details on the turning lane improvement analysis, assumptions, and costs. Page IX-15

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14 Table IX-3 Future LOS Improvements District Name From To Length (ft) Surface Condition Width_ USFT Type of Improvement Cost FY 2004 Score Project Completion Year Project Completion Year w/ Inflation Cost of Project in Year Completed Varies Varies 2 MEL RAY RD COLORADO RIVER DR DRY HOLLOW RD CMC RD GARFIELD COUNTY AIRPORT MAMM CREEK RD MILE POND RD County Intersection Improvements State Intersection Improvements MILLER LANE CL SH2 352 SH6 SH6 130 DONEGAN RD 240 SCL SILT ,25 16,7,04 3,274 1,454 2,242 2,7 GOOD GOOD GOOD GOOD GOOD GOOD GOOD GOOD $202,52 $2,3,60 $4,056,664 $1,66,246 $,425 $363,4 $560,526 $1,200,000 $7,000,000 $67, varies varies 2024 $3,644 $2,54,413 $7,25,5 $3,505,54 $1,76,51 $73,305 $1,24,735 $1,0,000 $,550,000 $1,7,00 Source: Garfield County 2003, Total Cost $,1,052 $33,162,476

15 Figure IX-4 Future Alternative Deficiencies in Year 2025 N Future Alternative Deficiencies County Roads US and State Highways County Boundary Parachute Rifle Silt New Castle.-, 70 Glenwood Springs.-, 70 Carbondale Miles

16 Improvement Alternatives Modal Choice The modal choice alternative involves using transit service in combination with any of the above alternatives. Table IX-4 presents the estimated ridership and costs in the year 2025 based upon the modal choice alternative (at a one percent, five percent, and ten percent modal split for the future trips). The cost and trips per revenue-hour are based upon the production rates of the Roaring Fork Transportation Authority (RFTA). The modal choice alternative assumes that Garfield County would operate transit service between the communities within the county. If the transit service was developed in combination with the RFTA, the costs would be lower. Table IX-4 Modal Split Alternative Production Modal Split Rate 1% 5% % Trips per day 6 4,2,5 Trips per hours Cost/Hour $55 $55 $55 Day of Operation Annual Hours 24,646 2,154 3,231 Annual Cost $1,355,546 $4,5,46 $6,777,72 Fare Box (Revenue) $246,463 $1,232,3 $2,464,62 Net Annual Cost $1,,03 $3,26,171 $4,313,0 Another method to obtain the modal split at a much lower cost would be for Garfield County to create public education and trip broker programs. The cost for these types of programs can range from $60,000 to $130,000 annually (based upon two staff members working 2,00 hours annually at a rate of $.05 per trip) at the modal split rate of ten percent. With a modal split rate of one percent, the cost is reduced to $13,000 to $15,000 annually (which equates to about 400 to 500 staff hours annually). If successful, the cost-to-benefit ratio can be very high. For every dollar invested in the public education and trip broker programs, the number of trips can be as high as. trips (or a 1 to. ratio). Therefore, for every $1 million dollars invested in the programs annually, the return is. million trips annually. This assumes that the trips being shifted are utilizing the RFTA service, carpooling, or vanpooling. Page IX-21

17 Improvement Alternatives The creation of park-and-ride lots located at major points along Interstate 70 and State Highway 2 would help these programs by improving access to Roaring Fork Transit Authority, carpools, and vanpools. The cost of the park-and-ride lots could range from $1.5 million to $3 million depending on the land cost and the area s environmental conditions. If Garfield County coordinates with CDOT and the cities within the county, the cost could be reduced to to 20 percent. Preferred Improvement The preferred improvement alternative is a combination of the maintenance, existing need, and future level of service improvements alternatives discussed above. The preferred improvement alternative assumes that Garfield County will improve every roadway that has a LOS deficiency or surface condition deficiency over the next 20 years. Table IX-1 lists the transportation projects for surface condition deficiencies, along with the score and estimated cost for each project. The scores ranged from 7 points to points. Table IX-2 lists the existing need transportation projects, along with the score and estimated cost of each project. The scores ranged from points to 23 points. Table IX-3 lists the future LOS improvements transportation projects, along with the score and estimated cost of each project. The scores ranged from 16 points to 2 points. The projects were scored using the criteria from Chapter VIII. The projects with the highest scores should be completed first, as they are given priority importance. The total estimated cost for the preferred improvement projects is $4 million over 20 years (in year 2004 dollars). In addition to the list of projects presented in Tables IX-1 through IX-3, the Garfield County staff and team have identified several intersections throughout the county that need improvements. These intersections are detailed in Appendix C. Figure IX-5 presents the deficient roadways (shown in red) in Garfield County for the year As shown in Figure IX-5, the amount of linear miles of deficient roadway is zero in the year Hence, there would be no LOS deficiencies. There Page IX-

18 Improvement Alternatives are several surface condition deficiencies. If the preferred improvement alternative is selected, the mobility and access problems (which arose in the other alternatives) will be non-existent. The preferred improvement alternative address the issues of access and mobility for the regional, urban, developed, rural, local, and less developed areas. This alternative allows for the continued economic viability of Garfield County to handle the future growth impacts. Page IX-23

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20 Figure IX-5 Preferred Alternative Deficiencies in Year 2025 N Preferred Projects County Roads US and State Highways County Boundary Parachute Rifle Silt New Castle.-, 70 Glenwood Springs.-, 70 Carbondale Miles

21 Improvement Alternatives SUMMARY Chapter IX presented several alternatives to improving the transportation system within Garfield County no build, maintenance, existing need, future level of service improvements, and preferred improvement. The alternatives range from a donothing approach to an approach wherein all of the deficient roadways throughout the county are improved. The total estimated costs range from zero to over $4 million over the next 20 years. Chapter IX also presented the modal choice alternative, which costs from $0,000 annually (for public education and trip broker programs) to over $4 million annually (to operate the county s own transit system). The results from this chapter were used in the analysis and development of the final recommendations, which are presented in Chapter XI. The next step will be to use this information in the fiscally-constrained plan for Garfield County. Page IX-27