This Long Lines site is situated about three miles east of Holden, MO on Highway 58 – or half-way between Centerview and Holden.
This station served as telephone-only relay station, according to the 1960 Long Lines microwave route map.
The station hops to the Aullville station to the northeast (which is right along I-70) and to Dayton to the southwest, which only carried telephone signals. Between 1960 and 1966, more connections were added to the Holden tower: a hop to the northwest to Oak Grove, and another hop to the southwest to Windsor. The Oak Grove-Holden-Windsor line included both television and telephone signals, according to the 1966 Long Lines microwave map for the central section. The 1966 map states that the Aullville-Holden-Dayton line was still only telephone.
The site has been long abandoned by AT&T. The horns have been removed at some point since 2008, when a Google Street View image still showed the tower having its KS-15676 horns. The site neighbors a water treatment facility. While the site has been abandoned by AT&T, it appears that a mast was erected on the top-most platform, possibly serving as a tower for a CB or ham radio site – perhaps even for a repeater station for the water district radio system.
The base building is large; much larger and of a different design than the base stations at other Missouri sites, such as Prairie Home and Slater. The tower is assumed to have been hardened for additional nuclear detonation protection, as evidenced by the “blast shield” for the outdoor air vents on the side of the base station. Many Long Lines sites were “hardened” or even built underground for maximum protection against a possible nuclear detonation – which was a concern for AT&T during the height of the Cold War. As further evidence, this building has no windows – and only one door. One potential explanation for the hardened construction of this particular site is that its neighbor, the Windsor site (also hardened), is located near the Whiteman Air Force Base, which formerly housed controls for the Minuteman nuclear missiles.
Pictures taken February 25, 2018 by me using the Samsung Galaxy Express Prime 2.