Truss Bridge

Historic Truss Bridge Management Plan


Fracture-critical : In bridge terminology, a design that includes sections under tension whose failure would probably cause a portion of the bridge, or  even the entire bridge, to collapse.

Integrity: In the context of The National Register of Historic Places, which defines integrity as the ability of a property to convey its historic  significance by retaining aspects of its original location, design, setting, materials, workmanship, feeling, and association.

Long Range Transportation Plan (LRTP) The Long Range Transportation Plan is a 20+ year strategy and capital improvement program developed to guide the effective investment of public funds in multimodal transportation facilities.

National Environmental Policy Act (NEPA): The National Environmental Policy Act (NEPA) is a United States environmental law that promotes the enhancement of the environment and established the President's Council on Environmental Quality (CEQ). The law was enacted on January 1, 1970.

National Register of Historic Places: the United States federal government's official list of districts, sites, buildings, structures, and objects deemed worthy of preservation.

National Register Criteria: The quality of significance in American history, architecture, archeology, engineering, and culture is present in districts, sites, buildings, structures, and objects that possess integrity of location, design, setting, materials, workmanship, feeling, and association and
(a) that are associated with events
that have made a significant contribution to the broad patterns of our history; or
(b) that are associated with the lives of persons significant in our past; or
(c) that embody distinctive characteristics
of a type, period, or method of construction, or that represent the work of a master, or that possess high artistic values, or that represent a significant and distinguishable entity whose components may lack individual distinction; or
(d) that have yielded, or may be likely to yield, information important in prehistory or history.

National Register Historic District: According to the Register definition, a historic district is: "a geographically definable area, urban or rural, possessing a significant concentration, linkage, or continuity of sites, buildings, structures, or objects united by past events or aesthetically by plan or physical development. In addition, historic districts consist of contributing and non-contributing properties. Historic districts possess a concentration, linkage or continuity of the other four types of properties. Objects, structures, buildings and sites within a historic district are usually thematically linked by architectural style or designer, date of development, distinctive urban plan, and/or historic associations."

Preliminary Engineering: is analysis and design work to produce construction plans, specifications and cost estimates.

Secretary of Interior’s Standards: The Standards for Rehabilitation (codified in 36 CFR 67 for use in the Federal Historic Preservation Tax Incentives program). "Rehabilitation" is defined as "the process of returning a property to a state of utility, through repair or alteration, which makes possible an efficient contemporary use while preserving those portions and features of the property which are significant to its historic, architectural, and cultural values."

Section 106 of the National Historic Preservation Act (Section 106): Section 106 of the National Historic Preservation Act of 1966 (NHPA) requires Federal agencies to take into account the effects of their undertakings on historic properties, and afford the Advisory Council on Historic Preservation a reasonable opportunity to comment. The historic preservation review process mandated by Section 106 is outlined in regulations issued by ACHP. Revised regulations, "Protection of Historic Properties" (36 CFR Part 800)

Significance (National Register): When evaluating a property against National Register criteria, significance is defined as the importance of a property to the history, architecture, archeology, engineering, or culture of a community, a State, or the nation.

STIP : The State Transportation Improvement Plan,  the first four years of the State’s Twelve Year  Plan for transportation projects.

TIP: Transportation Improvement Program, a four year plan (the first four years of the TYP) developed by each Metropolitan and Rural Planning Organization to address regional transportation needs. The various regional TIP's are integrated into the STIP.

TYP: The Twelve Year Transportation Program, the long-term planning document for transportation needs statewide.

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