Page 94 - ISVB
P. 94

92



          Point 9: Intrusion Minimization Plan









        Most of the Byway traverses open country        A relatively small portion of the Byway is       of the sites themselves is the greatest threat.
        with broad vistas of the Iowa River, framed      located within city limits. These townscapes    State and Federal historic preservation
        by ridges and hillsides rolling to the horizon.   vary in the type and density of development    regulations, as well as the vigilant oversight of
        Construction of cell towers, transmission        and include residential, commercial, and        local historic preservation groups, afford some
        lines, and new buildings modify the landscape    industrial zones. Except in the Amanas and      protection, and should be encouraged in future
        through time. Most of the land within the        historic downtowns, places of historic and      planning and management of the Corridor.
        Byway Corridor is in crops, pasture, or forest,   cultural interest are scattered within the
        and retains the central visual qualities of      towns, not concentrated in a single district or   Outdoor advertising, in particular large
        the 19th-20th century farmscape. Although        neighborhood. Signs, brochures, and other       billboards, are one intrusive threat to the
        significantly altered from its natural state,    media are therefore essential to draw the       Byway that are perhaps best regulated
        visitors can still get a feel for the original   visitor’s attention from convenience stores,    at present and into the future. Laws and
        landscape. This is particularly enhanced by the  discount stores, and modern industrial plants   regulations pertaining to this topic are listed in
        pronounced topographic contrasts between         to the historic and cultural sites that represent   Point 10. Among these the Federal Highway
        the broad valley floor and the steep bluffs      the Byway’s intrinsic qualities.                Beautification Act and Chapter 106C of the
        (particularly on the north side of the valley)                                                   Code of Iowa provide the greatest protection
        that rise to rolling uplands. The valley retains   The outward expansion of cities, new houses   by restricting the placement of billboards along
        its original relief, thus making it easier for the   in rural areas, cell towers, transmission lines,   Byways. County and city zoning ordinances,
        visitor to imagine its natural state of prairie   and similar kinds of development will continue   where they exist, also regulate the dimension
        and forests. Trees, indeed, still line the stream   to introduce visually intrusive elements into   and placement of signs. In general, larger
        valleys, and cloak the deep draws that finger    the Byway viewshed. The effect of these         and more intrusive signs tend to be permitted
        their way into the bluffs. For about half of its   intrusions is mitigated to some extent by the   primarily in areas zoned for commercial
        length, the Byway overlooks publicly owned or    Byway’s emphasis on cultural and historical     and industrial use. Nearby Marshall
        managed conservation and recreation lands        intrinsic qualities, which are often expressed in   County specifically prohibits billboards on
        that provide a glimpse of what much of the       relatively small sites where intrusive elements   agricultural lands. Such a restriction should be
        valley bottoms once looked like.                 may not greatly mar the visitor experience,     encouraged throughout the Byway corridor to
                                                         unless located in close proximity. Destruction   minimize this aspect of intrusion.
   89   90   91   92   93   94   95   96   97   98   99