RESPONSES TO JUNE 6 COMMENTS BY KENTUCKY HPAT

ON CCTV LATTICE TOWERS

Jacobs Engineering Revised June 25, 2013

Introduction The following information has been prepared to address comments and questions raised by the Kentucky Historic Preservation Advisory Team (HPAT) at the briefing on the closed circuit television (CCTV) lattice towers on Thursday, June 6. This information includes additional figures and details from which the June 6 presentation was drawn, as well as new information developed to specifically address concerns raised by the HPAT. Monopole Towers The HPAT discussed the visual aesthetics of monopole towers as compared to the proposed lattice towers. Monopole towers consist of a solid tapering steel tube that has a diameter of 80” at the base for an 80-ft tall monopole. Monopole towers are freestanding, with no guy wires or other external supports. There is only one monopole tower involved in the project. This is the existing 80-ft monopole tower located along I-71 at Frankfort Avenue. This tower will simply be removed and replaced with a new identical tower approximately 100 ft eastward, within the median of I-71. Figure 1 shows the existing tower, from a distance of 100 ft (approximately where the replacement tower will be located).

Figure 1: Existing Monopole tower along I-71 at Frankfort Ave.

Because they are nearly double the width of the lattice towers at the base (80” vs 42”), and because they are solid steel, the monopoles do provide a larger, singular imposition in the viewshed, while the lattice towers have a more open, but busier, appearance due to the lattice structure. (See Appendix B for details on the lattice tower structure.) Figures 2 and 3 show the relative difference between an 80-ft lattice tower and an 80-ft monopole tower. Both photos were taken at a distance of 200 ft with the same camera and the same lens setting. Similarly, Figures 4 and 5 show the same towers at a distance of 400 ft.

Figure 2: Lattice Tower @ 200’ Figure 3: Monopole @ 200’

Figure 4: Lattice Tower @ 400’ Figure 5: Monopole @ 400’

CCTV Lattice Towers The Ohio River Bridges Downtown project proposes to construct a total of four 80-ft CCTV lattice towers as a part of the intelligent transportation system (ITS) communications hardware. These towers will support CCTV cameras and other ITS devices. Two of these 80-ft lattice towers will be located in Kentucky, and two will be located in Indiana. These proposed new CCTV towers will be constructed of a lightweight steel lattice with a triangular cross-section 42” on a side. Each tower will be 80 ft tall, and will be constructed with four identical 20-ft length lattice sections that are bolted together to make up the 80-ft height. The towers are self-supporting, and are mounted on a below-ground concrete base, with no guy wires. Appendix B contains plan sheets showing details of the standard lattice towers. Figure 6, below, shows an existing standard 80-ft lattice CCTV tower from a distance of 100 ft. This tower was recently constructed along I-64 in Indiana, at the SR 64 interchange at Milepost 118. The view is toward the north-northeast, along the eastbound entrance ramp. The following Figures 7 - 9 show the same tower from further distances of 200, 400, and 800 ft respectively, all using the same camera and lens setting. To address specific HPAT concerns about the visual effects of the towers, we have examined in more detail the two lattice towers proposed in Kentucky. The results of this analysis are presented in the following pages.

Figure 6: 80-ft Lattice Tower on I-64 at a distance of 100 ft

80’ Lattice Tower

Figure 7: 80-ft Lattice Tower on I-64 at a distance of 200 ft

Figure 8: 80-ft Lattice Tower on I-64 at a distance of 400 ft

80’ Lattice Tower

80’ Lattice Tower

Figure 9: 80-ft Lattice Tower on I-64 at a distance of 800 ft. Proposed CCTV Towers in Kentucky CCTV Tower #1 – This tower will be located within the center of the Kennedy Interchange, east of the I-65 mainline, and north of the ramps from I-65 to I-71. Figure 10 on the following page shows the location of Tower #1 and the nearest historic district to Tower 1, the Butchertown Historic District. Figure 10 also shows two viewing points from within near portions of the historic district. The ground-level views from these two points are shown in Figures 11 and 12. The nearest portion of the district, near the corner of Franklin and Clay, is approximately 1,000 ft from Tower #1. Figure 9, above, shows an 80 ft lattice tower at a distance of 800 ft. as a reference.

80’ Lattice Tower

Figure 10: Location of Tower #1 and Views from Butchertown Historic District For the views of the two proposed CCTV towers shown in Figures 11, 12, 14 and 15, a 3-dimensional model of the 80’ CCTV tower was created using 3ds max software and virtual cameras were set at the same distances from the towers as the viewing points shown. The CCTV tower was then rendered on top of the photo, simulating its location and apparent height, as it would appear from that viewing point.

Figure 11: View toward Tower #1 from intersection of Franklin and Clay Streets Figure 11 shows the existing view to the north toward proposed CCTV Tower #1, which is to be located in the middle of the Kennedy Interchange. The view is taken from the northern boundary of the Butchertown Historic District near the intersection of Franklin and Clay. The Extreme Sports Park is to the immediate left. The “virtual” proposed tower is shown on the far side of the I-65 embankment, to the left of the truss bridge visible beyond the blue car in the foreground, generally along an alignment indicated by the red arrow. The tower would be located at a distance of approximately 1,150 ft from this location. (See Figure 9 for a view of a similar CCTV tower at a distance of 800 ft.) Some of the bottom portion of the tower will be further hidden by the new ramps and embankments that will be constructed as part of the new interchange. Ramp 2, carrying I-65 SB to I-64 EB, will block much of the line of sight of Tower #1 from any points in the Butchertown Historic District. Only the top approximately 21 feet of the tower would be visible above the new highway ramp.

Simulated CCTV Tower #1

Figure 12: View toward Tower #1 from intersection of Campbell St. at Geiger Figure 12 shows the view from near the north edge of the Butchertown Historic District, near the intersection of Campbell Street and Geiger, looking to the northwest. The proposed CCTV Tower #1 would be located beyond the dark bulk storage tanks behind the pickup truck sitting in the foreground, and to the right of the electric transmission line tower, as shown by the red arrow. The tower would be located at a distance of approximately 1,465 ft from this location. As with the view from Franklin at Clay, the view of a portion of the bottom of the tower will be blocked by the newly-constructed Ramp 2. From this portion of the historic district, at a distance of over 1,400 ft, Tower #1 will barely be perceptible. Refer to Figure 9 for a view of a similar tower at a distance of 800 ft.

Simulated CCTV Tower #1

CCTV Tower #2 – Proposed CCTV Tower #2 will be located along the east/south side of I-65 just southwest of the point where the Liberty St. on-ramp joins northbound I-65. Figure 13 shows the location of Tower #2. Views of this tower from the western section of the Phoenix Hill Historic District will be partially blocked by the intervening I-65 embankment. The Phoenix Hill Historic District is the nearest historic district to Tower #2. The nearest portion of the district, near the corner of Preston and Market, is approximately 1,000 ft from the tower.

Figure 13: Location of Tower #2 and Views from Phoenix Hill Historic District

Figure 14: View toward Tower #2 from intersection of Preston at Market Street Figure 14 presents the view of simulated Tower #2 from the southwest corner of the Phoenix Hill Historic District near Preston on Market Street, to the south, toward proposed CCTV Tower #2. The CCTV Tower #2 would be located south of Liberty Street and west of Preston, to the right of the tall building in the background and partially obscured by the trees, as indicated by the red arrow. Tower #2 would be located at a distance of approximately 1,025 ft from this location, on the far side of the I-65 embankment. As a reference, see Figure 9 for a view of a similar tower at a distance of 800 ft. A profile was created along the line of sight from viewing location 14 to Tower #2. The profile also included the new ramps and embankments that will be constructed as part of the improvements. Ramp 3, the exit ramp from I-65 SB to Liberty St. and the new embankment for I-65 SB will block a portion of the line of sight of Tower #2 from all points in the western portion of the Phoenix Hill Historic District located west of I-65 such that only approximately the top half of the tower would be visible above the new highway ramp and embankment. As shown, the top of the tower would be below the top of the U of L Hospital Building in the right background.

Simulated CCTV Tower #2

(There is also a possibility that Tower #2 would be replaced by a shorter tower that would be located atop the University of Louisville Hospital Building. This option is currently under negotiation. If an agreement is reached with the Hospital, a tower extending just 10 ft above the elevator shaft enclosure would be placed on the roof of the hospital.)

Figure 15: View toward Tower #2 from intersection of Jefferson at Hancock Street Figure 15 shows the view to the southwest from the near southern boundary of the Phoenix Hill Historic District on Jefferson at Hancock. The proposed CCTV Tower #2 would be located at a distance of approximately 1,725 ft from this viewing location, and it would be completely hidden behind the apartment building shown in the near foreground. With the density of other buildings adjacent to the district in this area, and the distance to the tower, the tower would not be visible at all from most vantage points in this part of the historic district. Summary As the exhibits in this document show, the potentially-affected Kentucky historic districts are located immediately adjacent to densely developed urban/industrial environments already occupied by numerous large buildings and industrial

View of CCTV Tower #2 would be blocked by this building

structures. Existing high-mast highway lighting, existing high-voltage electric transmission towers and lines, cellular telephone towers and other electric and telephone poles and lines are all already present within the viewsheds of the nearby historic districts, with many much nearer to the districts than the proposed CCTV towers. In all but the nearest cases shown here, the proposed CCTV towers will be a quarter-mile or more from the nearest point in either of the historic districts. And for many locations within the neighboring historic districts, the large buildings, trees and other structures immediately adjacent to the district boundaries will completely block the view of the proposed towers. Where the CCTV towers will be visible, they will blend in among the many other vertical elements visible in these densely developed urban and industrial areas. The State Historic Preservation Officers in both Kentucky and Indiana have reviewed the proposed CCTV lattice towers and have concluded that the lattice towers would not have an adverse effect on the viewsheds of historic resources within their respective states. See Appendix A for the letters from the two SHPOs.

APPENDIX A

SHPO LETTERS

APPENDIX B

LATTICE TOWER DETAILS