interchange replacing this has been considered. I-15 in Wheaton Springs, California (east of Mountain Pass) has several at-grade intersections with dirt roads, including one leading to a house. I-15 west of Mesquite, Nevada has an at-grade intersection with Toquop Wash Road, a dirt road. Another access point to Toquop Wash Road passes under the I-15 southbound lanes and connects to the northbound lanes in the median. I-15 southbound near Cove Fort, Utah has an at-grade intersection with Cinder Crater Road, an asphalt and gravel road that provides access for trucks to the Cinder Crater quarry. I-520 in Augusta, Georgia has an at-grade intersection with a gravel and asphalt road that provides access to Lovers Lane. I-40 in the mountains of western North Carolina has at-grade access to several dirt roads, as well as a partially grade-separated interchange that lacks ramps or RIROs where roads directly connect to the I-40 carriageways. (Example) I-40 in western Texas has eight at-grade access points for cattle ranches with median breaks. I-80 westbound in western Utah in the Great Salt Lake Desert has two gravel roads that directly connect to the freeway, one accessing the Metaphor: The Tree of Utah artwork and another towards Cobb Peak. I-94 at Fort Custer west of Battle Creek, Michigan is the only instance of an Interstate freeway in the state of Michigan to have a gated driveway (at 44th Street), which facilitates access of military vehicles. Other at-grade intersections The northbound lanes of I-5 in Washington intersect with an at-level crosswalk approximately south of the border with Canada. This crosswalk allows pedestrians access to a monument that is part of Peace Arch Park. Undivided and narrow freeways This section addresses two-lane freeways and other narrow or undivided freeway sections of the Interstate, excepting instances of continuing routes using one-lane ramps and merge leads. Narrow gaps between opposing directions with jersey barriers taller than are excluded from this section; therefore the separation criterion is really either a wall, or a median, whichever is greater. I-40's western in North Carolina in the Harmon Den Wildlife Management Area has several S-curves, a Jersey barrier with extremely narrow left shoulders and a few at-grade intersections albeit in RIRO style. I-55 enters Tennessee from Arkansas on the Memphis and Arkansas Bridge, which itself merits mention as a narrow through truss bridge. Just east of the bridge I-55 transitions from its east–west river crossing to