Commonwealth of the Northern Mariana Islands Joint Military Training Transportation Study
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FINAL (VERSION 4) COMMONWEALTH OF THE NORTHERN MARIANA ISLANDS JOINT MILITARY TRAINING TRANSPORTATION STUDY Department of the Navy Naval Facilities Engineering Command, Pacific 258 Makalapa Drive, Suite 100 JBPHH HI 96860-3134 September 2014 This page is intentionally left blank. FINAL (VERSION 4) COMMONWEALTH OF THE NORTHERN MARIANA ISLANDS JOINT MILITARY TRAINING TRANSPORTATION STUDY Department of the Navy Naval Facilities Engineering Command, Pacific 258 Makalapa Drive, Suite 100 JBPHH HI 96860-3134 September 2014 N62742-11-D-1801 Amd 01 Contract Task Order 02 This page is intentionally left blank. CJMT Transportation Study – Final (Version 4) September 2014 Executive Summary EXECUTIVE SUMMARY The purpose of this report is to provide specific information related to transportation including existing ground, air, and marine infrastructure, and construction of new facilities associated with the proposed action to establish a series of live-fire and maneuver ranges, training areas, and supporting facilities on the islands of Tinian and Pagan within the Commonwealth of the Northern Mariana Islands (CNMI). Figure ES-1 provides an overview of the CNMI, and Figure ES-2 and Figure ES-3 provide an overview of Tinian and Pagan, respectively. The United States (U.S.) Pacific Command has identified unfilled unit level and combined level training requirements in the Western Pacific. U.S. Pacific Command designated the U.S. Marine Corps Forces Pacific (a part of the Marine Corps) as Executive Agent to address the unfilled training requirements. To address these shortfalls, the U.S. Marine Corps is overseeing the development of the CNMI Joint Military Training (CJMT) Environmental Impact Statement/Overseas Environmental Impact Statement (EIS/OEIS) for the proposed action. Proposed actions on Tinian would focus on unit level training requirements, while actions on Pagan would focus on combined level training requirements. There are two different training tempos proposed for both Tinian and Pagan. The first training tempo is the proposed action presented in the CJMT EIS/OEIS, consisting of 20 weeks per year on Tinian and 16 weeks per year on Pagan. In the future, the training tempo might be increased to 45 weeks per year on Tinian and 40 weeks per year on Pagan and is addressed by the CJMT EIS/OEIS as a potential future action. This study addresses both training tempos. GROUND TRANSPORTATION STUDY ON TINIAN The existing conditions and capacity of Tinian’s roadway facilities (within and outside of the Military Lease Area) and future travel demand with the proposed action have been analyzed. This ground transportation study uses available traffic volume data from the CNMI Comprehensive Highway Master Plan (CDPW 2008). The analysis of roadway segment level of service (LOS) is based on the roadway functional classification, maximum capacity, geometry, and average daily traffic volumes. Any roadway with LOS F is considered as over capacity with average daily traffic volume higher than the capacity threshold. The operational analysis indicates that all roadway segments are currently operating at acceptable level of service (LOS A) and would continue to operate at acceptable levels of service with low average daily traffic volumes and capacity available to accommodate projected traffic growth. Existing roadways have sufficient available capacity to accommodate the traffic volumes generated by the proposed action. However, the current overgrown and poor condition of many of the roadways is such that based on the operational requirements with the proposed action, some level of improvements and upgrades to existing roads, such as, vegetation clearance, resurfacing, and regrading would be required to support recurring use by heavier and larger military vehicles. Several new roadways would be required to provide access to areas where ranges and training areas or support facilities are proposed and no roads currently exist. ES-1 CJMT Transportation Study – Final (Version 4) September 2014 Executive Summary Figure ES-1. Commonwealth of the Northern Mariana Islands and Guam Source: DoN 2014. ES-2 CJMT Transportation Study – Final (Version 4) September 2014 Executive Summary Figure ES-2. Island of Tinian and the Military Lease Area Source: DoN 2014. ES-3 CJMT Transportation Study – Final (Version 4) September 2014 Executive Summary Figure ES-3. Island of Pagan Source: DoN 2014. ES-4 CJMT Transportation Study – Final (Version 4) September 2014 Executive Summary The proposed roadway improvement recommendations for Tinian are identified in Figure ES-4. The recommended roadway improvement actions/construction requirements are listed below. • Improve Road Right-of-Way for Utilities • Repair Existing Road for Public Use • Repair Existing Road for Public Use – Boulevard • Construct New Paved Road • Repair Existing Road for General Use • Construct New Gravel Road • Establish Military Training Road • Perimeter Patrol Road • Road Closures The following cargo transit and tracked-vehicle transit routes would be established on Tinian: • Port to the Base Camp and MSA • Tracked-Vehicle Training Trail Existing roads around the North Field runway (e.g., 123rd Street, Ushi Point Road, and Lennox Avenue) would be maintained by the U.S. military to allow tour bus access (see meeting notes provided in Appendix A). Roadway improvements are subject to change pending the results of ongoing study and evaluation. As part of the 1999 amendment to the 1984 lease agreement, the U.S. military transferred ownership of the roads within the military lease-back portion of Tinian to the CNMI for the purposes of maintaining the roads used by the civilian population, and to alleviate public-safety concerns for those requiring access to the Lease Back Area (CNMI and United States of America 1999). Roadways within the Exclusive Military Use Area were retained by the military through a maintenance agreement between the CNMI and the U.S. military to facilitate access to the historic areas inside the Exclusive Military Use Area. Development within the Military Lease Area (MLA) would require a review of the 1999 agreement on road ownership and maintenance. Based on a discussion held on April 24, 2014, the U.S. military may request to take control or otherwise develop an agreement with the CNMI and Municipality of Tinian concerning control, use, and maintenance of all roads within the MLA (meeting notes are provided in Appendix A). Varying degrees of public access may be allowed to the MLA during training periods, depending on the training activities. When allowable, the perimeter security system would provide access to civilians to areas within the MLA. Military training would increase on Tinian approximately 20 weeks per year based on the proposed action and approximately 45 weeks per year under a potential future increased training tempo. As such, it is estimated that civilian use and access would be affected up to 20 weeks per year based on the proposed action and up to 45 weeks per year under a potential future increased training tempo. The 8th Avenue gate would be manned per standard security and operating procedures to allow MLA access by authorized personnel (including International Broadcasting Bureau employees). Gates would be manned as required to assure safety and security of the area (DoN 2014c). ES-5 CJMT Transportation Study – Final (Version 4) September 2014 Executive Summary Figure ES-4. Tinian Proposed Roadway Improvement Segments Source: DoN 2014. ES-6 CJMT Transportation Study – Final (Version 4) September 2014 Executive Summary The following roads would be permanently or temporarily closed: • Permanent Closure – o Within the MLA: Gated security fences to the proposed MSA, HHIA, observation posts, and the base camp would be established to keep unauthorized people from entering these areas. Roads within the established fence line of these areas would be off limits to the public under all alternatives (DoN 2014c). Permanent closure of existing roads within the MLA, including portions of Broadway and 116th Street, would limit route choice and restrict vehicular access to areas of northern Tinian, including the National Historic Landmark. Civilian motorists who currently access areas within the MLA via Broadway would be diverted to the 8th Avenue gate during periods when civilian access to the MLA is allowed. Altered circulation patterns resulting from the permanent closure of roads within the MLA would not adversely affect traffic circulation or LOS on Tinian roadways. Roadways within and outside the MLA would continue to operate under capacity and at an acceptable LOS (i.e., LOS A). • Temporary Closure – o Outside the MLA: Transportation of munitions may result in the temporary disruption of traffic of normal traffic patterns on roads and intersections that are near the munitions supply route (Figure 3.1-5 in Chapter 3). A security concept of operations has been developed for convoys transporting munitions between the Port of Tinian and the MSA (DoN 2014c). o Within the MLA: Only certain areas of the MLA would be open to the public during training periods. As training cycles are better defined, an access plan would be developed and published for public information. Training periods would be published electronically and by other media sources as agreed to between the Department of Defense and the Municipality of Tinian. Signs would also be posted to announce training periods. Long- range public notice of this training intent would give commercial travel and tourism companies