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<p style='margin:12pt 0in 8.25pt; text-align:center;'><span style='font-family:Arial, sans-serif; font-size:13.5pt;'><font color='#000000' style='font-family:inherit;'>The National Bridge Inventory (NBI) is a database, compiled by the <a href='https://www.fhwa.dot.gov/bridge/nbi.cfm' rel='nofollow ugc' style='color:rgb(0, 97, 155); text-decoration-line:none; font-family:inherit;' target='_blank'>Federal Highway Administration</a> (FHWA), with information of all the bridges and tunnels in the United States that have roads passing above or below them. </font></span></p><p style='margin:12pt 0in 8.25pt; text-align:center;'><span style='font-family:Arial, sans-serif; font-size:13.5pt;'><font color='#000000' style='font-family:inherit;'>This layer represents bridge condition performance for structures on the National Highway System (NHS). The NHS includes the Interstate Highway System as well as other roads important to the nation’s economy, defense, and mobility. It was developed by the Department of Transportation (DOT) in cooperation with the states, local officials, and metropolitan planning organizations (MPOs).</font></span></p><p style='margin:12pt 0in; text-align:center; background-image:initial; background-position:initial; background-size:initial; background-repeat:initial; background-attachment:initial; background-origin:initial; background-clip:initial;'><span style='font-family:Arial, sans-serif; font-size:13.5pt;'><font color='#000000' style='font-family:inherit;'>TPB staff downloads NBI data annually from the <a href='https://www.fhwa.dot.gov/bridge/nbi/ascii.cfm' rel='nofollow ugc' style='color:rgb(0, 97, 155); text-decoration-line:none; font-family:inherit;'>FHWA</a>. TPB staff extracts NHS bridges in the TPB Planning Region, assigns a regional unique ID, calculates the bridge condition according to the federal rule, calculates the deck area, and summarizes the bridge condition data by jurisdiction to use as input to the federally-required Performance-Based Planning and Programming (PBPP) target setting and monitoring process.</font></span></p><p style='margin:12pt 0in; text-align:center; background-image:initial; background-position:initial; background-size:initial; background-repeat:initial; background-attachment:initial; background-origin:initial; background-clip:initial;'><span style='font-family:Arial, sans-serif; font-size:13.5pt;'><font color='#000000' style='font-family:inherit;'>TPB staff use the geographic coordinates in the 2023 NBI file to calculate the latitude and longitude in decimal degrees to create the feature class. Several of the latitude and longitude coordinates were incorrectly located and have been updated by the TPB staff. This feature class has a unique ID for each bridge and can be linked to the annual bridge condition files by the field PBPP ID.</font></span></p><p style='margin:12pt 0in; text-align:center; background-image:initial; background-position:initial; background-size:initial; background-repeat:initial; background-attachment:initial; background-origin:initial; background-clip:initial;'><span style='font-family:Arial, sans-serif; font-size:13.5pt;'><font color='#000000' style='font-family:inherit;'>TPB Staff applied the final rule to the region’s latest bridge condition data for the TPB Planning Region. The 2023 Bridge data became available in January 2024, through the <a href='https://www.fhwa.dot.gov/bridge/nbi/ascii.cfm' rel='nofollow ugc' style='color:rgb(0, 97, 155); text-decoration-line:none; font-family:inherit;' target='_blank'>National Bridge Inventory</a> (NBI) from the FHWA. The data are reported per the required performance measures (good and poor condition), see the <a href='https://www.govinfo.gov/content/pkg/FR-2017-01-18/pdf/2017-00550.pdf' rel='nofollow ugc' style='color:rgb(0, 97, 155); text-decoration-line:none; font-family:inherit;'>rule</a> and </font></span><a href='https://www.fhwa.dot.gov/bridge/mtguide.pdf' rel='nofollow ugc' style='color:rgb(0, 97, 155); text-decoration-line:none; font-family:Arial, sans-serif; font-size:13.5pt;' target='_blank'>National Bridge Inventory Guide</a><span style='font-family:Arial, sans-serif; color:rgb(0, 0, 0); font-size:13.5pt;'> for more information. </span></p><p style='margin:12pt 0in; text-align:center; background-image:initial; background-position:initial; background-size:initial; background-repeat:initial; background-attachment:initial; background-origin:initial; background-clip:initial;'><font color='#000000' style='font-family:inherit;'><br /></font></p><p style='margin:12pt 0in 8.25pt; text-align:center; background-image:initial; background-position:initial; background-size:initial; background-repeat:initial; background-attachment:initial; background-origin:initial; background-clip:initial;'><span style='font-family:Arial, sans-serif; font-size:13.5pt;'><font color='#000000' style='font-family:inherit;'>For more information:</font></span></p><p style='margin:12pt 0in 8.25pt; text-align:center; background-image:initial; background-position:initial; background-size:initial; background-repeat:initial; background-attachment:initial; background-origin:initial; background-clip:initial;'><span style='font-family:Arial, sans-serif; font-size:13.5pt;'><a href='https://www.fhwa.dot.gov/planning/performance_based_planning/' rel='nofollow ugc' style='color:rgb(0, 97, 155); text-decoration-line:none; font-family:inherit;'><font color='#000000' style='font-family:inherit;'>FHWA PBPP </font></a></span></p><p style='margin:12pt 0in 8.25pt; text-align:center; background-image:initial; background-position:initial; background-size:initial; background-repeat:initial; background-attachment:initial; background-origin:initial; background-clip:initial;'><span style='font-family:Arial, sans-serif; font-size:13.5pt;'><a href='https://www.fhwa.dot.gov/tpm/rule.cfm' rel='nofollow ugc' style='color:rgb(0, 97, 155); text-decoration-line:none; font-family:inherit;'><font color='#000000' style='font-family:inherit;'>FHWA Transportation Performance Management </font></a></span></p><p style='margin:12pt 0in 8.25pt; text-align:center; background-image:initial; background-position:initial; background-size:initial; background-repeat:initial; background-attachment:initial; background-origin:initial; background-clip:initial;'><span style='font-family:Arial, sans-serif; font-size:13.5pt;'><a href='https://www.fhwa.dot.gov/tpm/pubs/PM2FAQs.pdf' rel='nofollow ugc' style='color:rgb(0, 97, 155); text-decoration-line:none; font-family:inherit;'><font color='#000000' style='font-family:inherit;'>TPM Frequently Asked Questions</font></a></span></p><p style='margin:12pt 0in 8.25pt; text-align:center; background-image:initial; background-position:initial; background-size:initial; background-repeat:initial; background-attachment:initial; background-origin:initial; background-clip:initial;'></p><p style='margin:12pt 0in 8.25pt; text-align:center; background-image:initial; background-position:initial; background-size:initial; background-repeat:initial; background-attachment:initial; background-origin:initial; background-clip:initial;'><span style='font-family:Arial, sans-serif; font-size:13.5pt;'><a href='https://www.fhwa.dot.gov/tpm/pubs/PM2BridgeFactSheet.pdf' rel='nofollow ugc' style='color:rgb(0, 97, 155); text-decoration-line:none; font-family:inherit;'><font color='#000000' style='font-family:inherit;'>TPM Bridge Performance Measures</font></a></span></p><div style='font-family:inherit;'><br /></div> |
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<span style='color:rgb(77, 77, 77); font-family:Verdana, Helvetica, sans-serif; font-size:12px;'>The Regional Transportation Data Clearinghouse is provided 'as is' without warranty of any kind either expressed or implied. The National Capital Region Transportation Planning Board (TPB) does not warrant, guarantee, or make any representations regarding the use of or results from the use of the data in terms of correctness, accuracy, reliability, completeness, fitness for a particular purpose, or otherwise. TPB/COG shall not be liable for any loss or injury arising out of or caused in whole or in part by the acts or omissions of TPB, their personnel, or their sources of information whether negligent or otherwise.</span> |