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U.S. Government Information Report March 2000

The 1991 Intermodal Surface Transportation Efficiency Act (ISTEA) identified several high priority corridors on the National Highway System. The East-West Transamerica Corridor (I-66) was one of these high priority corridors, and funding was provided for a feasibility study. The East-West Transamerica Corridor was generally defined as a corridor located between 1-70 and l-40 with an eastern terminus in Virginia and a western terminus in southern California. Based on the Appropriations Act, the corridor in Kentucky is to be centered on the cities of Bowling Green, Columbia, Somerset, London, Hazard, Jenkins and Pikeville.

    In 1992, consultants Wilbur Smith Associates (WSA) and Howard Needles Tammen and Bergendoff (HNTB) were selected to conduct a national East-West Transamerica Corridor Feasibility Study. A Steering Committee consisting of representatives of eleven states and the Federal Highway Administration (FHWA) provided technical direction to the study while the Missouri Highway and Transportation Department served as administrative agent. This study, titled the "Transamerica Transportation Corridor Feasibility Study," was completed in 1994. While this study concluded that the entire coast-to-coast corridor did not meet the economic feasibility criteria established for the study, it did conclude that further analysis could find some segments of the corridor more feasible from a state or regional perspective.

    In 1997, the Kentucky Transportation Center completed a study for the Transportation Cabinet that concluded that the Southern Kentucky Corridor (1-66) through Kentucky was indeed feasible. This study included public participation through an advisory committee, public meetings, press releases, and newsletters sent to all parties who expressed an interest in the project. This study identified the Somerset to London segment of the 1-66 corridor as a priority segment. Additionally, the Transportation Equity Act for the 21" Century (TEA-21) also established funding for the Somerset to London segment of the l-66 corridor as a high priority corridor.

    In late 1998, a planning study was initiated utilizing the consultant services of Wilbur Smith Associates, to identify a preferred corridor for I-66 between Somerset in Pulaski County and London in Laurel County. Preliminary corridor alternates were presented at public meetings in Somerset and London in June 1999. Based on comments received during and after those meetings, the Transportation Cabinet has been working with Wilbur Smith Associates to determine the impacts of constructing I-66 along the existing KY 80 corridor or in other locations close to KY 80. More in-depth analysis has been completed for all alternates being considered and all of this information will be presented at public meetings scheduled for March 2000 in Somerset and London.

CORRIDOR EVALUATION

    Most recently, ten corridor alternates have been evaluated for the I-66 corridor using three criteria categories: traffic and socioeconomic issues; environmental issues; and cost estimates. Each of these criteria are described in the following sections and presented in table format on the following pages.

Traffic 8 Socioeconomic Issues

A total of eleven (11) traffic and socioeconomic issues are considered for this analysis. The evaluation categories include:

  • Projected Traffic Volumes The weighted (based on segment length) average annual daily traffic (AADT) for each alternate alignment in the Design Year 2030.

  • Time Savings The total travel time saved on a one-way trip along each alternate alignment (at 65 mph) when compared with travel along the existing KY 80.

  • Distance Savings The total travel distance saved on a one-way trip along each alternate alignment when compared with travel along the existing KY 80.

  • Daily Vehicle Miles of Travel (VMT) Served The total number of vehicle-miles (segment length x segment AADT) traveled along each alternate alignment by Year 2030.

  • Daily Vehicle Hours of Travel (VHT) Saved The total number of vehicle-hours (time savings x daily VMT) saved by each alternate alignment by Year 2030.

  • Accident Reductions The total number of accidents (reduction factor’ x daily VMT) that would be eliminated by each alternate alignment by Year 2030.

  • System Connectivity A measure of access to other highway facilities for each alternate alignment (number of intersections proposed for each alternate x the functional classification of the intersected route). Ratings range from nine (9) for a Rural Interstate to one (1) for a County Road.

  • Displacements The number of structures displaced for each proposed alternate alignment (within a 500 ft. corridor zone).

  • Recreational Facilities The average distance (in miles) from each alternate alignment to 116 recreational facilities in a five-county area.

  • Industrial Serviceability The average distance (in miles) from each alternate alignment to 203 industrial facilities in the study area.

  • Environmental Justice A percentage calculated to measure minorities, elderly persons, and low-income persons along the identified alignments. Values above zero (0) indicate the alignment is more favorable than the regional average, potentially causing fewer negative impacts to these population groups.

  •  

    Environmental Issues

    A total of fifteen (15) environmental issues are considered. Numbers within the environmental tables represent potential impacts within a 2,000-foot corridor for each identified alternate

    • Archaeology Sites The number of known sites located in a 2,000-foot corridor.

    • Cemeteries The number of known sites located in a 2,000-foot corridor.

    • Churches The number of known sites located in a 2,000-foot corridor.

    • Historic Structures The number of known sites located in a 2,000-foot corridor.

    • Schools The number of known sites located in a 2,000-foot corridor.

    • Daniel Boone National Forest (DBNF) Property The number of acres of property owned by the DBNF located within a 2,000-foot corridor.

    • Threatened 8 Endangered Species The number of known sites located in a 2,000-foot corridor (State & Federal data).

    • Potential Threatened 8 Endangered Species The number of sites located in a 2,000-foot corridor.

    • Cave Routes The number of feet located within a 2,000-foot corridor.

    • Clifflines The number of feet located within a 2,000-foot corridor.

    • Stream Crossings The number of blue-line stream crossings within a 2,000-foot corridor.

    • Wetland Sites The number of known acres located in a 2,000-foot corridor.

    • Wild River The potential for a 2,000-foot corridor to pass through a designated Wild River Area (0 = no, 1 = yes).

    • Oil 8 Gas Wells The number of known sites in a 2,000-foot corridor (includes known abandoned sites).

    • Hazardous Sites The number of Environmental Protection Agency (EPA) and Underground Storage Tank (UST) sites located within a 2,000-foot corridor.

    Cost Estimates

    A number of construction-related issues are considered when estimating costs for the identified corridor alternates. These elements are combined to present Total and Per-Mile Costs for each alternate:

    •  Planning and Design

    •  Environmental Factors

    • Right-of-way Acquisition

    • Utility Installation or Relocation

    • Construction Elements Includes earthwork, excavation, pavement materials, drainage and bridge structures, interchanges, and other costs.

    Southern Kentucky Corridor
    Preliminary Traffic/Socioeconomic Overview
    Design Year = 2030

    * Key Traffic/Socioeconomic Features *

    Alternate

    Projected
    Traffic
    Volumes

    Time
    Savings

    Distance
    Savings

    Daily VMT
    Served

    Daily VHT
    Served

    Accident
    Re-

    ductions

    System
    Con-

    nectivity

    Displace-
    ments

    Rec-
    reational
    Facilities

    Industrial
    Service-
    ability

    Environ-
    mental
    Justice

    VPD

    M:S

    Miles

    VMT

    VHT

    Number

    Rating

    Number

    Miles

    Miles

    Percent

    KY 80

    20,300

    11:00

    3.7

    936,000

    3720

    480

    57

    480

    36.0

    5.2

    23

    North No.1

    20,400

    11:30

    4.1

    930,000

    3890

    480

    51

    300

    33.1

    5.6

    30

    North No.2

    14,600

    10:50

    3.4

    674,000

    2560

    350

    56

    240

    36.3

    5.7

    13

    North No.3

    18,500

    12:00

    4.6

    834,000

    3730

    430

    54

    270

    36.1

    5.7

    15

    North No.4

    19,900

    10:30

    3.1

    932,000

    3470

    480

    51

    330

    31.8

    5.7

    29

    Middle

    15,500

    11:20

    4.0

    707,000

    2920

    370

    49

    140

    32.5

    5.4

    23

    South No.1

    15,800

    8:20

    0.7

    774,000

    2180

    400

    53

    300

    27.7

    5.9

    15

    South No.2

    15,500

    7:30

    -0.2

    775,000

    1920

    400

    53

    280

    27.7

    6.2

    14

    South No.3

    15,000

    8:20

    0.8

    736,000

    2110

    380

    55

    380

    27.8

    6.6

    17

    South No.4

    16,600

    7:50

    0.2

    820,000

    2160

    420

    53

    310

    27.9

    5.4

    16

    BEST

    WORST

    Southern Kentucky Corridor
    Preliminary Environmental Overview

    * Key Environmental Features (within a 2,000-foot buffer) *

    Alternate

    Archaeology
    Sites

    Cemeteries

    Churches

    Historic
    Structures

    Schools

    DBNF
    Property

    Threatened & Endangered
    Species

    Potential
    Threatened &
    Endangered
    Species

    Each

    Each

    Each

    Each

    Each

    Acres

    Each

    Each

    KY 80

    30

    9

    4

    7

    5

    750

    9

    1

    North No.1

    21

    8

    13

    1

    6

    1,240

    2

    2

    North No.2

    16

    4

    7

    1

    0

    740

    0

    0

    North No.3

    22

    4

    8

    1

    3

    720

    2

    1

    North No.4

    26

    6

    9

    1

    4

    1,550

    2

    1

    Middle

    9

    5

    3

    1

    0

    1,990

    16

    16

    South No.1

    6

    7

    8

    1

    4

    1,570

    14

    23

    South No.2

    6

    6

    11

    1

    5

    1,570

    16

    23

    South No.3

    10

    9

    7

    1

    2

    1,520

    7

    22

    South No.4

    6

    9

    10

    1

    4

    1,570

    14

    23

    BEST

    WORST

    Southern Kentucky Corridor
    Preliminary Environmental Overview (continued)

    * Key Environmental Features (within a 2,000-foot buffer) *

    Alternate

    Cave
    Routes

    Clifflines

    Stream
    Crossings

    Wetland
    Sites

    "Wild"
    River

    Oil & Gas Wells 1

    Hazardous
    Sites
    (EPA & UST's) 2

    Feet

    Feet

    Each

    Acres

    Each

    Each

    Each

    KY 80

    5,740

    30,070

    43

    50

    1

    28

    17

    North No.1

    0

    46,660

    41

    101

    1

    20

    5

    North No.2

    0

    41,150

    52

    87

    0

    19

    0

    North No.3

    0

    35,240

    48

    93

    1

    20

    0

    North No.4

    0

    35,860

    53

    90

    1

    23

    0

    Middle

    3,250

    100,260

    51

    70

    1

    24

    4

    South No.1

    6,980

    100,600

    63

    110

    0

    19

    0

    South No.2

    6,980

    100,600

    58

    110

    0

    19

    0

    South No.3

    11,600

    113,350

    69

    220

    0

    3

    0

    South No.4

    6,980

    100,600

    57

    90

    0

    19

    4

    BEST

    WORST

    1 Includes abandoned sites.   2 Environmental Protection Agency (EPA) and Underground                                                    Storage Tank (UST) sites.

    Southern Kentucky Corridor
    Preliminary Environmental Overview (continued)

    * Key Environmental Features (within a 2,000-foot buffer) *

    Alternate

    Length1

    Construction

    Bridges 2

    Interchanges 3

    Design

    Right-of-Way
    & Utilities

    Project

    Per Mile

    Miles

    (millions)

    (millions)

    (millions)

    (millions)

    (millions)

    (millions)

    (millions)

    KY 80 No.1 4

    38.4

    $   308.1

    $   103.0

    $   121.4

    $   116.8

    $   519.1

    $   1,168.4

    $   30.5

    KY 80 No.2 5

    38.4

    $   564.0

    $   103.0

    $   121.4

    $   117.6

    $   269.7

    $   1,175.7

    $   30.7

    North No.1

    39.0

    $   387.5

    $   88.4

    $   121.4

    $   88.7

    $   200.9

    $   886.9

    $   22.7

    North No.2

    41.5

    $   412.2

    $   84.0

    $   136.4

    $   94.3

    $   215.9

    $   942.8

    $   22.7

    North No.3

    40.1

    $   398.5

    $   84.0

    $   136.4

    $   92.2

    $   210.7

    $   921.8

    $   23.0

    North No.4

    43.2

    $   429.7

    $   86.2

    $   121.4

    $   94.9

    $   217.1

    $   949.3

    $   22.0

    Middle

    39.1

    $   388.4

    $   88.4

    $   108.2

    $   86.8

    $   196.2

    $   868.0

    $   22.2

    South No.1

    45.6

    $   443.9

    $   99.4

    $   114.8

    $   97.6

    $   220.7

    $   976.4

    $   21.4

    South No.2

    46.5

    $   461.9

    $   92.8

    $   114.8

    $   99.6

    $   227.3

    $   996.4

    $   21.4

    South No.3

    48.9

    $   486.3

    $   148.5

    $   121.4

    $   111.0

    $   242.5

    $   1,109.7

    $   22.7

    South No.4

    42.9

    $   426.2

    $   95.0

    $   114.8

    $   94.4

    $   213.6

    $   944.0

    $   22.0

    BEST

    WORST

    1 Miles   2 Includes Overpasses and Railroad Structures  3 Includes One Rest Area per Alternate
    4 Includes Purchase of 1798 Parcels @ $155,000 Each & No Frontage Roads
    5 Includes Approximately 52.2 Miles of Frontage Roads
  •