two most important functions of Highway Systems are to:
- Identify the minimum public highway infrastructure that DOD
needs to fulfill its mission; then integrate these public highway
needs into civil policies, plans, and programs.
- Ensure the defense readiness capability of public highway infrastructure
and establish policy on how DOD uses the public highway system.
We work with the Military Services, MACOM's, military installations,
ports, US Department of Transportation, US Federal Highway Administration,
the American Association of State Highway and Transportation Officials
(AASHTO), State transportation departments, and Congress to accomplish
We have identified DOD's public highway needs in the Strategic Highway
Network (STRAHNET) and STRAHNET Connector Routes.
In addition, we also establish policy and provide guidance on how
the DOD uses the public highway system. We assist the military in
highway movement problems, work to ensure highway safety, and help
guarantee the highways' readiness condition for deployment.
Strategic Highway Network (STRAHNET)
We have identified DOD's public highway needs in the Strategic
Highway Network (STRAHNET). STRAHNET is a system of about 61,000
miles of highways, including the Interstate System to STRAHNET.
An additional 2,000 miles of STRAHNET Connectors link important
military installations and ports. Together, STRAHNET and the Connectors
define the total minimum public highway network necessary to support
Defense deployment needs.
Defense Use of Public Highways. SDDCTEA, as USTRANSCOM's agent,
establishes policy for how the Department of Defense operates
on public highways. Detailed policy and procedures can be found
4500.9-R, Defense Transportation Regulation, Part III Mobility,
Appendix V, Permits for Oversize, Overweight, or Other Special
Military Movements on Public Highways in the United States".
States, counties and cities are responsible for vehicle operations
on their highways, including movement on the Dwight D. Eisenhower
System of Interstate and Defense Highways. Limitations on dimensions,
weight and/or other characteristics of vehicle movement over roads
and bridges are necessary to ensure the safe passage and prevent
damage to highway infrastructure. Other limitations, including
hours of movement for oversize/overweight, or other shipments,
are predicated on traffic congestion periods and hazardous operating
conditions. Limitations are determined by each jurisdiction and
can vary considerably. It is imperative that the military services
comply with all size and weight ordinances.