MasterFormat Division 35: Waterway and Marine Construction

Division 35 covers waterway and marine construction—dams, levees, ports, harbors, piers, docks, and coastal protection structures. Learn how Division 35 organizes specification sections, connects to UniFormat and OmniClass, and how The Construction Standard provides licensed access to authoritative, edition-aware Division 35 data through CSI Dynamic Standards.

MasterFormat Division 35 organizes the specification sections, cost codes, and work results for waterway and marine construction across the construction industry. As part of CSI's consensus-based classification system, Division 35 provides the authoritative structure that specifiers, estimators, contractors, and software platforms use to organize waterway and marine construction work.

What Division 35 Covers

Division 35 covers waterway and marine construction—dams, levees, ports, harbors, piers, docks, and coastal protection structures.

This division includes waterway and marine signaling, dredging, dams, levees, ports, harbors, navigation locks, coastal construction, and underwater construction.

Division 35 contains multiple levels of sections and subsections that organize this scope into a precise, consensus-based hierarchy. These sections provide the numbering backbone for project manuals, bid packages, cost databases, and BIM models. When teams reference Division 35 consistently, every document from concept estimate to closeout speaks the same language.

Licensed through The Construction Standard, CSI Dynamic Standards includes the authoritative, always-current section numbers and titles for Division 35—searchable, cross-referenced, and edition-aware.

Who Uses Division 35
  • Marine engineers designing port and harbor facilities
  • Coastal engineers designing shoreline protection
  • Dam and levee engineers
  • Port authorities and waterway agencies

Whether you write specifications, estimate costs, coordinate BIM models, or build software that references waterway and marine construction, Division 35 numbers and titles are the shared vocabulary your work depends on.

How Division 35 Connects to Other Standards

UniFormat

Division 35 extends UniFormat into marine and waterway infrastructure—specialized construction entities beyond typical building scope.

OmniClass

OmniClass Table 11 (Construction Entities) classifies marine and waterway facilities as built environment entities.

These cross-references are maintained by CSI through governed crosswalks—not assembled ad hoc by individual project teams. Through The Construction Standard, licensed access to CSI Dynamic Standards gives teams these relationships so they can navigate between specifications, elements, and lifecycle categories without manual remapping.

Why Edition Awareness Matters

MasterFormat evolves through consensus-based updates. Projects that span multiple years may reference different editions. Division 35 sections may be added, renumbered, or revised between editions. Without edition awareness, teams risk referencing obsolete section numbers, creating specification conflicts, and generating RFIs that delay construction.

Licensed through The Construction Standard, CSI Dynamic Standards gives teams full edition context for Division 35—teams know which edition applies at each project milestone, what changed, and where those changes affect their work.

The Licensing Relationship

CSI—the Construction Specifications Institute—stewards Division 35 as part of MasterFormat. CSI Dynamic Standards includes MasterFormat, UniFormat, and OmniClass as a connected, edition-aware system. The Construction Standard provides licensed access to CSI Dynamic Standards:

  • Always current: Section numbers and titles reflect the latest CSI-approved updates
  • Edition-aware: Teams know which edition applies and what changed between releases
  • Cross-referenced: Governed relationships to UniFormat and OmniClass stay maintained
  • Integration-ready: Enterprise solutions carry Division 35 data into the tools you already use
COMMON QUESTIONS
Division 35 – Waterway and Marine Construction covers this division includes waterway and marine signaling, dredging, dams, levees, ports, harbors, navigation locks, coastal construction, and underwater construction. It provides the authoritative section numbering used in project manuals, cost databases, bid packages, and BIM models across the construction industry.
Marine engineers designing port and harbor facilities, Coastal engineers designing shoreline protection, Dam and levee engineers, Port authorities and waterway agencies—anyone who writes specifications, estimates costs, manages submittals, or builds software that references waterway and marine construction work results needs authoritative Division 35 section numbers and titles.
Division 35 extends UniFormat into marine and waterway infrastructure—specialized construction entities beyond typical building scope. OmniClass Table 11 (Construction Entities) classifies marine and waterway facilities as built environment entities. CSI Dynamic Standards includes these governed crosswalks—licensed through The Construction Standard—so teams can navigate between standards without manual remapping.
If your organization uses Division 35 section numbers, titles, or descriptions in deliverables, templates, products, or platforms that others rely on, CSI Standards licensing is necessary. The license ensures you're working with authoritative, CSI-approved data that stays current with consensus-based updates.

Ready to Get Started?

CSI Dynamic Standards includes MasterFormat, UniFormat, and OmniClass as a connected, edition-aware system. The Construction Standard provides licensed access—built for the speed of your work.

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