The National Bridge Inventory dataset is as of June 27, 2024 from the Federal Highway Administration (FHWA) and is part of the U.S. Department of Transportation (USDOT)/Bureau of Transportation Statistics (BTS) National Transportation Atlas Database (NTAD). The data describes more than 615,000 of the Nation's bridges located on public roads, including Interstate Highways, U.S. highways, State and county roads, as well as publicly-accessible bridges on Federal and Tribal lands. The inventory data present a complete picture of the location, description, classification, and general condition data for each bridge. The element data present a breakdown of the condition of each structural and bridge management element for each bridge on the National Highway System (NHS). The Recording and Coding Guide for the Structure Inventory and Appraisal of the Nation's Bridges contains a detailed description of each data element including coding instructions and attribute definitions. The Coding Guide is available at: https://doi.org/10.21949/1519105.

The Bridge dataset was developed using data provided by the Bridge Inspection Database. The Bridge Inspection Database contains a record for each Bridge Structure on public roadways in Texas. This includes Bridges maintained by TxDOT, Toll Authorities, Counties, Municipalities, and other jurisdictions. Bridge Inspection data is the primary source used to update the National Bridge Inspection File (NBI) in Washington. For more information on Bridge attribute data, please consult the Bridge Inspection Coding Guide and the Bridge Data Dictionary found at the links below:TxDOT Bridge Coding GuideTxDOT Bridge Data DictionaryUpdate Frequency: NightlySecurity Level: Public

The National Bridge Inventory Elements dataset is as of June 27, 2024 from the Federal Highway Administration (FHWA) and is part of the U.S. Department of Transportation (USDOT)/Bureau of Transportation Statistics (BTS) National Transportation Atlas Database (NTAD). The data describes more than 615,000 of the Nation's bridges located on public roads, including Interstate Highways, U.S. highways, State and county roads, as well as publicly-accessible bridges on Federal and Tribal lands. The inventory data present a complete picture of the location, description, classification, and general condition data for each bridge. The element data present a breakdown of the condition of each structural and bridge management element for each bridge on the National Highway System (NHS). The Specification for the National Bridge Inventory Bridge Elements contains a detailed description of each data element including coding instructions and attribute definitions. The Coding Guide is available at: https://doi.org/10.21949/1519106.

The NBI is a collection of information (database) describing the more than 600,000 of the Nation's bridges located on public roads, including Interstate Highways, U.S. highways, State and county roads, as well as publicly-accessible bridges on Federal lands. It presents a State by State summary analysis of the number, location, and general condition of highway bridges within each State.

Bridges-Rail in the United States According to The National Bridge Inspection Standards published in the Code of Federal Regulations (23 CFR 650.3), a bridge is: A structure including supports erected over a depression or an obstruction, such as water, highway, or railway, and having a track or passageway for carrying traffic or other moving loads. Each bridge was captured as a point which was placed in the center of the "main span" (highest and longest span). For bridges that cross navigable waterways, this was typically the part of the bridge over the navigation channel. If no "main span" was discernable using the imagery sources available, or if multiple non contiguous main spans were discernable, the point was placed in the center of the overall structure. Bridges that are sourced from the National Bridge Inventory (NBI) that cross state boundaries are an exception. Bridges that cross state boundaries are represented in the NBI by two records. The points for the two records have been located so as to be within the state indicated by the NBI's [STATE_CODE] attribute. In some cases, following these rules did not place the point at the location at which the bridge crosses what the user may judge as the most important feature intersected. For example, a given bridge may be many miles long, crossing nothing more than low lying ground for most of its length but crossing a major interstate at its far end. Due to the fact that bridges are often high narrow structures crossing depressions that may or may not be too narrow to be represented in the DEM used to orthorectify a given source of imagery, alignment with ortho imagery is highly variable. In particular, apparent bridge location in ortho imagery is highly dependent on collection angle. During verification, TechniGraphics used imagery from the following sources: NGA HSIP 133 City, State or Local; NAIP; DOQQ imagery. In cases where "bridge sway" or "tall structure lean" was evident, TGS attempted to compensate for these factors when capturing the bridge location. For instances in which the bridge was not visible in imagery, it was captured using topographic maps at the intersection of the water and rail line. TGS processed 784 entities previously with the HSIP Bridges-Roads (STRAHNET Option - HSIP 133 Cities and Gulf Coast). These entities were added into this dataset after processing. No entities were included in this dataset for American Samoa, Guam, Hawaii, the Commonwealth of the Northern Mariana Islands, or the Virgin Islands because there are no main line railways in these areas. At the request of NGA, text fields in this dataset have been set to all upper case to facilitate consistent database engine search results. At the request of NGA, leading and trailing spaces were trimmed from all text fields. At the request of NGA, all diacritics (e.g., the German umlaut or the Spanish tilde) have been replaced with their closest equivalent English character to facilitate use with database systems that may not support diacritics. The currentness of this dataset is given by the publication date which is 09/02/2009. A more precise measure of currentness cannot be provided since this is dependent on the NBI and the source of imagery used during processing.

The Railroad Bridges dataset was compiled on October 14, 2022 from the Federal Railroad Administration (FRA) and is part of the U.S. Department of Transportation (USDOT)/Bureau of Transportation Statistics (BTS) National Transportation Atlas Database (NTAD). A railroad bridge is defined as “Railroad bridge means any structure with a deck, regardless of length, which supports one or more railroad tracks, or any other undergrade structure with an individual span length of 10 feet or more located at such a depth that it is affected by live loads.†based on the Code of Federal Regulations (49 CFR Part 237). The FRA does not have a mandate to inspect railroad bridges: these inspections are required by the owner of the track. The FRA will use this railroad bridge dataset to determine the number of bridges per railroad, state, etc. and will assist in determining priority field activities.

The NBI is a collection of information (database) describing the more than 600,000 of the Nation's bridges located on public roads, including Interstate Highways, U.S. highways, State and county roads, as well as publicly-accessible bridges on Federal lands. It presents a State by State summary analysis of the number, location, and general condition of highway bridges within each State.

The NBI (NTAD) is a collection of information (database) describing the more than 610,000 of the Nation's bridges located on public roads, including Interstate Highways, U.S. highways, State and county roads, as well as publicly-accessible bridges on Federal lands. It presents a State by State summary analysis of the number, location, and general condition of highway bridges within each State. Please note: 11,168 records in this database were geocoded to latitude and logtitude of 0,0 due to lack of location information or errors in the reported locations.

This inventory of Detroit pedestrian bridges and their condition assessments is derived from the Michigan Department of Transportation (MDOT) and includes pedestrian bridges that span State of Michigan roadways only.Inspections of pedestrian bridges over State of Michigan routes are performed on a risk-based interval by MDOT, not to exceed 24 months. While not governed by the National Bridge Inspection Standards, these inspections are performed to maintain safety of the traveled way and to provide information needed for asset management. Routine Inspections of the entire structure may be supplemented by Special Inspections of Bridge Components that require more frequent monitoring. Condition ratings for pedestrian bridges are evaluated following the National Bridge Inventory Condition Ratings in a similar manner to vehicle bridges. These ratings are based on a 0-9 scale, where 0 is "Failed condition" and 9, "Excellent condition". Condition ratings are assigned for the deck, superstructure and substructure of each bridge or for each culvert. A culvert is a structure that allows passage under a roadway and has a short span (less than 20 feet).

The NBI System is the collection of bridge inspection information and costs associated with bridge replacements of structurally deficient bridges on and off the NHS. This data is collected under the auspices of the National Bridge Inspection Standards (NBIS) as prescribed by law. The NBI System collects the information that is used to determine eligibility for NHS projects, performance measure reporting, NHS penalty determination, and reporting to Congress. It supports oversight of the NBIS through various report tools, and provides data reporting that supports agency strategic goals.

Bridges are defined in 335.074, F.S. as the following: Bridges are defined as having an opening measured along the center of the roadway of more than 20 feet between under croppings of the abutments or spring lines of arches or extreme ends of openings for multiple boxes and those bridges consisting of multiple pipes where the clear distance between openings is less than half of the smaller contiguous opening. This dataset is maintained by the Transportation Data & Analytics office (TDA). The source spatial data for this hosted feature layer was created on: 07/05/2025.For more details please review the FDOT RCI Handbook Download Data: Enter Guest as Username to download the source shapefile from here: https://ftp.fdot.gov/file/d/FTP/FDOT/co/planning/transtat/gis/shapefiles/bridges.zip

Comprehensive dataset of 306 Bridges in Ohio, United States as of July, 2025. Includes verified contact information (email, phone), geocoded addresses, customer ratings, reviews, business categories, and operational details. Perfect for market research, lead generation, competitive analysis, and business intelligence. Download a complimentary sample to evaluate data quality and completeness.

Information:

This domain includes 108 bridges constructed in Pittsburgh since 1818. Each design is described by seven specification properties (three continuous and four nominal) and Five design properties are provided for each design.

There are two versions to the database: - V1 contains the original examples; - V2 contains descriptions after discretizing numeric properties.

Attribute Information:

A) Specification Properties:

1. id: Bridge's Identifier.

2. river: River of the bridge. {A : Allegheny, M : Monongahela, O : Ohio}

3. location: Bridge's Location. / 1 - 52

4. erected: Bridge's construction year. / 1818 - 1986 {CRAFTS: 1818 - 1866, EMERGING: 1870 - 1889, MATURE: 1890 - 1939, MODERN: 1945 - 1986}

5. purpose: Bridge's purpose.
   {WALK, AQUEDUCT, RR (Railroad), HIGHWAY}

6. length: Bridge's length / 804-4558 {SHORT : 804 - 990, MEDIUM : 1000 - 1850, LONG : 2000 - 4558}

7. Lanes: Bridge's lanes / 1, 2, 4 and 6

8. clear-g: Vertical clearance requirement was enforced in the design. {N: Not Enforced, G: Enforced}

B) Design properties

1. t-or-d: The roadway location on the bridge. {THROUGH, DECK}

2. material: Bridge's predominant material. {WOOD, IRON, STEEL}

3. span: Bridge's span. {SHORT, MEDIUM, LONG}

4. rel-l: Relative length of the span to the crossing length. {S: Short, S-F: Short-Full, F: Full}

5. type: Bridge's type. {WOOD, SUSPEN (Suspension), SIMPLE-T (Simple Truss), ARCH, CANTILEV (Cantilever), CONT-T (Continuous Truss)}

Source:

https://archive.ics.uci.edu/ml/datasets/Pittsburgh+Bridges

Reich, Yoram, and Steven J. Fenves. "The formation and use of abstract concepts in design." Concept Formation. Morgan Kaufmann, 1991. 323-353. Reich, Yoram. "Combining nominal and continuous properties in an incremental learning system for design." (1989).

The United State Federal Highway Administration (FHWA) collects and updates information on the nation's bridges that are located on public roads, including both interstate and US highways, state and county roads, and publicly accessible bridges on federal land. This collection of information is known as the National Bridge Inventory (NBI), and it has been captured electronically since 1972. While parts of the data were first made available to the public in 1997, it wasn't until 2007 that the FWHA decided to make all elements of the NBI database publicly available.

This NBI data set contains 135 variables describing over 600,000 bridges. Variables describe the location, structure, maintenance, usage, status, and other aspects of the bridges. An extremely detailed (124 page) pdf guide to the variables, codes, and other metadata on the NBI can be found here:

https://www.fhwa.dot.gov/bridge/mtguide.pdf

Acknowledgements

The Department of Transportation FHWA collects and provides the NBI data as authorized by statue 23, U.S.C. 151

This data set was downloaded from the Homeland Infrastructure Foundation here:

https://hifld-dhs-gii.opendata.arcgis.com/datasets/94c41e96db0d4b85b9eb622923e0a0e8_0

Inspiration

This data set contains variables describing the cost of bridge (ITEM94) and roadway (ITEM95) improvement in thousands of dollars. How many improvement projects could be completed for $20B?

Use of the NBI data also enables FHWA to satisfy its requirements under 23 U.S.C. 144, which mandate the inventory, classification, cost estimates for replacement or rehabilitation, and assignment of replacement or rehabilitation priorities for all highway bridges on all public roads. Can you come up with better cost estimates and classifications? For example, in the absence of additional information, FHWA recommends using 10% of the bridge cost as a roadway improvement cost estimator.

Using Latitude and Longitude data and operational status (ITEM41), can you find any bridges to nowhere?

This file contains location and identification information for bridges in Oregon. This includes bridges owned by the state, cities, counties, and other owners such as railroad bridges that cross state highways. It does not include bridges that are owned by Federal agencies. A bridge is a structure including supports erected over a depression or an obstruction, such as water, highway, or railway, and having a track or passageway for carrying traffic or other moving loads and having an opening measured along the center of the roadway of more than 20 feet.

Data in the NBI is used to meet legislative reporting requirements and provide bridge owners, the Federal Highway Administration (FHWA) and the general public with information on the number and condition of the Nation’s bridges.The National Bridge Inventory dataset is as of June 27, 2024 from the Federal Highway Administration (FHWA) and is part of the U.S. Department of Transportation (USDOT)/Bureau of Transportation Statistics (BTS) National Transportation Atlas Database (NTAD). The data describes more than 615,000 of the Nation's bridges located on public roads, including Interstate Highways, U.S. highways, State and county roads, as well as publicly-accessible bridges on Federal and Tribal lands. The inventory data present a complete picture of the location, description, classification, and general condition data for each bridge. The element data present a breakdown of the condition of each structural and bridge management element for each bridge on the National Highway System (NHS). The Recording and Coding Guide for the Structure Inventory and Appraisal of the Nation's Bridges contains a detailed description of each data element including coding instructions and attribute definitions. The Coding Guide is available at: https://doi.org/10.21949/1519105.

Homeland Infrastructure Foundation-Level Data (HIFLD) geospatial data sets containing information on National Bridge Inventory (NBI) Bridges.

Vietnam Number of Bridges data was reported at 30,916.000 Unit in 2015. This records an increase from the previous number of 29,019.000 Unit for 2014. Vietnam Number of Bridges data is updated yearly, averaging 28,978.000 Unit from Dec 2006 (Median) to 2015, with 10 observations. The data reached an all-time high of 34,253.000 Unit in 2012 and a record low of 24,102.000 Unit in 2009. Vietnam Number of Bridges data remains active status in CEIC and is reported by General Statistics Office. The data is categorized under Global Database’s Vietnam – Table VN.TA011: Road, Inland Waterways and Bridge Statistics.