THRO 204(1) Buck Hill Road Plates.pdf

This document is a set of technical plates and supporting materials for the Buck Hill Road project (ND NP THRO 204(1)) located in the South Unit of Theodore Roosevelt National Park in North Dakota, dated November 2024.

The project encompasses road improvements on Buck Hill Road, extending from station 100+18 to station 138+15 (approximately 3,797 feet). The documentation includes four detailed plates: a Project Site Map showing the road location within the park relative to nearby features such as Buck Hill Overlook, Sully Springs, and staging/mix pit areas; a Geology Map identifying Quaternary system deposits including recent Pleistocene land-slide deposits (Qls), Sentinel Butte Formation (Tsb), and Bullion Creek Formation (Qmp); a Landslide Map showing multiple mapped landslide deposits in the Recent Pleistocene (Qls) with specific reference to LIDAR-identified features; and a Boring Location Map with detailed subsurface profile information. The boring location map presents a full-width subexcavation profile with specific stations, elevations, and slope specifications (including slopes ranging from +3.69% to -1.50% and vertical curves with parameters such as K=22 61'VC and K=15 101'VC). Notable construction details include specifications for pavement ditches, concrete curbs, gutters, guardrail installations, and a constructed pullout between stations 129+20 and 130+51 on the left side of the road.