Table A.4. NBI Data from ITS Sources
| Description | Links to ITS Data Sources |
|---|
| State Code | |
| Structure Number | |
| Record Type | |
| Route Signing Prefix |
TMDD: "Road Number" can be used directly, but must follow state coding rules. Route signing is included in "Road Number" but is free form text, not NBI valid values. |
| Designated Level of Service |
| Route Number |
| Directional Suffix | |
| Highway Agency District | |
| County (Parish) Code | |
| Place Code | |
| Features Intersected | |
| Critical Facility Indicator | |
| Facility Carried By Structure | |
| Location | |
| Inventory Rte, Min Vert Clearance (XX.XX meters) | |
| Kilometer point (XXXX.XXX) | |
| Base Highway Network | |
| Route Number (LRS Inventory) | |
| Sub route Number (LRS Inventory) | |
| Latitude (XX degrees XX minutes XX.XX seconds) | |
| Longitude (XXX degrees XX minutes XX.XX seconds) | |
| Bypass/Detour Length (XXX kilometers) | |
| Toll | |
| Maintenance Responsibility | |
| Owner | |
| Functional Class Of Inventory Rte. | TMDD: "Link Type" has coding inconsistent (less detailed) than HPMS: Freeway, Arterial, Collector, and Local only |
| Year Built | |
| Lanes On Structure (XX lanes) | TMDD: Number of Through Lanes on a link can be used. NA: "number_of_lanes" reserved for this information |
| Lanes Under Structure (XX Lanes) | |
| Average Daily Traffic (XXXXXX) | TMDD: Only link volume is provided, with no formal specification of time period. AADT may be derived from link volumes only if they are archived with appropriate time and location stamps. |
| Year Of Average Daily Traffic | |
| Design Load | |
| Approach Roadway Width (XXX.X meters) | TMDD: Only shoulder width coded |
| Bridge Median | TMDD: NBI codes can be translated from TMDD codes. NA: "median_type" reserved for this data |
| Skew (XX degrees) | |
| Structure Flared | |
| Traffic Safety Features - Bridge Railings | |
| Traffic Safety Features - Transitions | |
| Traffic Safety Features - Transitions | |
| Traffic Safety Features - Approach Guardrail | |
| Traffic Safety Features - Approach Guardrail Ends | |
| Historical significance | |
| Navigation Control | |
| Navigation Vertical Clearance (XXX.X meters) | |
| Navigation Horizontal Clearance (XXXX.X meters) | |
| Structure Open/Posted/Closed | |
| Type of Service On Bridge | |
| Type of Service Under Bridge | |
| Main Structure - Kind of Material/Design | |
| Main Structure - Type of Design/Construction | |
| Approach Spans - Kind of Material/Design | |
| Approach Spans - Type of Design/Construction | |
| Number Of Spans In Main Unit | |
| Number Of Approach Spans | |
| Inventory Rte Total Horz Clearance (XX.X meters) | |
| Length Of Maximum Span (XXXX.X meters) | |
| Structure Length (XXXXX.X meters) | TMDD: "Link Length" (in meters) may be used directly, but how the links in a TMDD network match with beginning/ending points of an NBI segment is an open question. |
| Left Curb/Sidewalk Width (XX.X meters) | |
| Right Curb/Sidewalk Width (XX.X meters) | |
| Bridge Roadway Width Curb-To-Curb (XXX.X meters) | |
| Deck Width, Out-To-Out (XXX.X meters) | |
| Min Vert Clear Over Bridge Roadway (XX.XX meters) | |
| Minimum Vertical Under clearance - Reference Feature | |
| Minimum Vertical Under clearance (XX.XX meters) | |
| Min Lateral Under clear On Right - Reference Feature | |
| Minimum Lateral Under clearance on Right (XX.X meters) | |
| Min Lateral Under clear On Left - Reference Feature | |
| Minimum Lateral Under clearance on Left (XX.X meters) | |
| Deck | |
| Superstructure | |
| Substructure | |
| Channel/Channel Protection | |
| Culverts | |
| Method Used To Determine Operating Rating | |
| Operating Rating (XX.X metric tons) | |
| Method Used To Determine Inventory Rating | |
| Inventory Rating (XX.X metric tons) | |
| Structural Evaluation | |
| Deck Geometry | |
| Under clear, Vertical & Horizontal | |
| Bridge Posting | |
| Bridge Posting | |
| Waterway Adequacy | |
| Approach Roadway Alignment | |
| Type of Work Proposed | |
| Work Done By | |
| Length Of Structure Improvement (XXXXX.X meters) | |
| Inspection Date (mmyy) | |
| Designated Inspection Frequency (mm) | |
| Inspection - Fracture Critical Details (Y/N, mm if yes) | |
| Underwater Inspection (Y/N, mm if yes) | |
| Other Special Inspection (Y/N, mm if yes) | |
| Inspection - Fracture Critical Details Date (Y/N, mm if yes) | |
| Underwater Inspection Date (Y/N, mm if yes) | |
| Other Special Inspection Date (Y/N, mm if yes) | |
| Bridge Improvement Cost ($xxxxxx thousands) | |
| Roadway Improvement Cost ($xxxxxx thousands) | |
| Total Project Cost ($xxxxxx thousands) | |
| Year Of Improvement Cost Estimate | |
| Border Bridge - Neighboring State Code | |
| Border Bridge - Percent Responsibility | |
| Border Bridge Structure Number | |
| STRAHNET Highway Designation | |
| Parallel Structure Designation | |
| Direction Of Traffic | TMDD: Links are defined as one-way or two-way operation, but not whether or not they're on a structure. |
| Temporary Structure Designation | |
| Highway System Of Inventory Route | |
| Year Reconstructed | |
| Deck Structure Type | |
| Deck Structure Type | |
| Type of Wearing Surface/Protective System | |
| Type of Membrane | |
| Deck Protection | |
| Average Daily Truck Traffic (XX percent) | |
| Designated National Network | |
| Pier/Abutment Protection | |
| NBIS Bridge Length | |
| Scour Critical Bridges | |
| Future Daily Average Traffic (XXXXXX) | |
| Year of Future Average Daily Traffic | |
| Minimum Navigation Vertical Clearance Lift Bridge (XXX.X meters) | |
