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https://www.fhwa.dot.gov/construction/ FHWA Construction Teams - Construction - Federal Highway Administration construction teams fhwa federal highway administration https://mutcd.fhwa.dot.gov/ Manual on Uniform Traffic Control Devices (MUTCD) - FHWA traffic control devices manual uniform mutcd fhwa https://ops.fhwa.dot.gov/freight/sw/permit_report/index.htm Oversize/Overweight Load Permits - FHWA Freight Management and Operations freight management oversize overweight load permits https://mutcd.fhwa.dot.gov/kno_11th_Editionr1.htm MUTCD 11th Edition - FHWA MUTCD mutcd edition fhwa https://mutcd.fhwa.dot.gov/index.htm Manual on Uniform Traffic Control Devices (MUTCD) - FHWA traffic control devices manual uniform mutcd fhwa https://highways.dot.gov/newsroom/us-transportation-secretary-sean-p-duffy-governors-roads-are-for-safety-not-politics U.S. Transportation Secretary Sean P. Duffy to Governors: Roads are for Safety, Not Politics | FHWA Governors have 60 days to identify needed safety improvements Contact: FHWA.PressOffice@dot.gov https://highways.dot.gov/safety/proven-safety-countermeasures/road-diets-roadway-reconfiguration Road Diets (Roadway Reconfiguration) | FHWA A Road Diet, or roadway reconfiguration, can improve safety, calm traffic, provide better mobility and access for all road users, and enhance overall quality... road diets reconfiguration fhwa https://highways.dot.gov/safety/hsip/hsip-assessment-toolbox/self-assessment Self-Assessment | FHWA The purpose of a self-assessment is to provide a formal process for Federal, State and local transportation safety professionals to collaboratively assess the... self assessment fhwa https://ops.fhwa.dot.gov/resources/news/news_detail.asp?ID=1135 FHWA Operations - News - Details operations news fhwa details https://highways.dot.gov/newsroom/press-releases Press Releases | FHWA press releases fhwa https://es.mtc.ca.gov/funding/federal-funding/federal-highway-administration-fhwa-grants Federal Highway Administration (FHWA) Grants | Metropolitan Transportation Commission Apr 17, 2026 - MTC distributes Federal Highway Administration (FHWA) funds to projects throughout the Bay Area that have been prioritized in the regional long-range... federal highway administration fhwa grants https://www.fhwa.dot.gov/ipd/project_profiles/va_potomac_metrorail_station.aspx FHWA - Center for Innovative Finance Support - Project Profiles center for innovative finance support project fhwa profiles https://www.fhwa.dot.gov/ipd/alternative_project_delivery/defined/new_build_facilities/design_build.aspx FHWA - Center for Innovative Finance Support - Alternative Project Delivery Defined: New Build... alternative project delivery center for innovative finance https://ops.fhwa.dot.gov/publications/fhwahop20013/ch4.htm Detailed Analysis of ADS-Deployment Readiness of the Existing Traffic Laws and Regulations - FHWA... https://highways.dot.gov/federal-lands/cadd-support/survey-library Survey Library | FHWA The Survey.cel cell library contains Survey and existing features symbols. Most of these cells should be placed at scale 1. The cell library is available with... survey library fhwa https://www.fmcsa.dot.gov/newsroom/transportation-secretary-sean-p-duffy-slashes-red-tape-across-fhwa-nhtsa-and-fmcsa Transportation Secretary Sean P. Duffy Slashes Red Tape Across FHWA, NHTSA, and FMCSA to Unburden... Secretary of Transportation Sean P. Duffy announced today 52 deregulatory actions across Federal Highway Administration (FHWA), Federal Motor Carrier Safety... https://highways.dot.gov/section-508/frequently-asked-questions Section 508 Frequently Asked Questions | FHWA Q1. I'm not posting my document, instead I will distribute by email to State DOTs. Do I have to make this conformant with Section 508? frequently asked questions section fhwa https://www.fhwa.dot.gov/ipd/project_profiles/ky_kentuckywired.aspx FHWA - Center for Innovative Finance Support - Project Profiles center for innovative finance support project fhwa profiles https://highways.dot.gov/safety/zero-deaths Zero Deaths and Safe System | FHWA safe system zero deaths fhwa https://highways.dot.gov/federal-lands/flap/ma/program-projects-fy23-fy26-ma-flap Program of Projects FY23 - FY26 (MA FLAP) | FHWA program of projects flap fhwa https://highways.dot.gov/cfo/2016-transferability-apportioned-funds-between-programs-questions-answers 2016 Transferability of Apportioned Funds Between Programs Questions & Answers | FHWA Posted: 4/22/2016 Question 1: What provision governs transfers between programs of funds apportioned under section 104 of title 23, United States Code, as... questions answers transferability funds programs fhwa https://highways.dot.gov/safety/rwd/reduce-crash-severity/hardware-eligibility-letters/safety-eligibility-letter-wz-426 Safety Eligibility Letter WZ-426 | FHWA 1200 New Jersey Ave. S.E. Washington, D.C. 20590 April 13, 2021 In Reply Refer To: HSST-1/WZ-426 Mr. Henry A. Ross Plasticade 100 Howard Avenue, Des Plaines IL... safety eligibility letter wz fhwa https://highways.dot.gov/safety/speed-management/speed-concepts-informational-guide/chapter-3-consequences-speed CHAPTER 3. CONSEQUENCES OF SPEED | FHWA Traffic speeds are relevant and of interest to nearly everyone. Our preferences and judgments of appropriate speed are strongly influenced by setting and... chapter consequences speed fhwa https://ops.fhwa.dot.gov/publications/fhwahop10014/index.htm Field Operations Guide for Safety/Service Patrols - FHWA Office of Operations field operations for safety guide service patrols https://highways.dot.gov/safety/data-analysis-tools/rsdp/rsdp-tools/crash-report-sampling-system-crss Crash Report Sampling System (CRSS) | FHWA Crash Report Sampling System (CRSS) data come from a representative sample of police reported motor vehicle crashes of all types, but only basic information is... crash report sampling system fhwa https://highways.dot.gov/cfo/fhwa-small-business-contracting FHWA Small Business Contracting | FHWA Hello and welcome to FHWA's small business contracting information page! You are encouraged to review FHWA's DOT Procurement Forecast, view our active awards,... small business fhwa contracting https://highways.dot.gov/safety/pedestrian-bicyclist/step/step-campaign STEP UP Campaign | FHWA Overview Safe Transportation for Every Pedestrian (STEP) is a recogn step up campaign fhwa https://highways.dot.gov/federal-lands/construction/forms Construction Forms | FHWA CFL Supplements CFL Paynote Inspector s Daily Report construction forms fhwa https://ops.fhwa.dot.gov/wz/resources/publications/fhwahop13024/index.htm Applying the Principles of the Work Zone Rule to Design-Build Projects: Two Case Studies - FHWA... https://highways.dot.gov/highway-history/general-highway-history/moment-time-president-harry-s-truman-and-madonna-trail A Moment in Time: "President" Harry S. Truman and the Madonna of the Trail | FHWA by Richard Weingroff / FHWA News 2022-2023 a moment in time https://highways.dot.gov/safety/hsip/shsp/leading-way-safer-transportation-system/briefing-talking-points Briefing Talking Points | FHWA Safety is an integral part of everything a state department of transportation (DOT) does, but the HSIP provides an opportunity to explicitly target safety... talking points briefing fhwa https://www.fhwa.dot.gov/reports/techadvs.cfm FHWA Technical Advisories | Federal Highway Administration technical advisories fhwa federal highway administration https://www.fhwa.dot.gov/ipd/p3/defined/ FHWA - Center for Innovative Finance Support - P3 Defined center for innovative finance fhwa support defined https://highways.dot.gov/about/administration/anti-harassment-resources Anti-Harassment Resources | FHWA GuidanceFHWA's Anti-Harassment Process anti harassment resources fhwa https://highways.dot.gov/safety/local-rural/maintenance-signs-and-sign-supports Maintenance of Signs and Sign Supports | FHWA fhwasa09025.pdf (2.49 MB) January 2010 sign supports maintenance signs fhwa https://highways.dot.gov/highway-history/general-highway-history/highways-and-bridges-commemorated-u-s-postage-stamps Highways and Bridges Commemorated on U. S. Postage Stamps A Philatelic Transportation Venture | FHWA By George Austin Hay highways and bridges https://highways.dot.gov/field-offices/kansas/contact-us Contact Us | FHWA The Kansas Division is open every Monday-Friday (excluding Federal holidays) from 7:30AM - 4:00 PM. We may be reached during these hours at 785-273-2600 and... us fhwa https://www.fhwa.dot.gov/pressroom/fhwa0206.cfm FHWA Software Package Estimates Work Zone Traffic Delays (4/5/02) | Press Releases | Federal... https://ops.fhwa.dot.gov/wz/wzdx/index.htm Work Zone Data Exchange (WZDx) - Work Zone Management - FHWA Office of Operations work zone data exchange office of management fhwa https://highways.fhwa.dot.gov/laws-regulations/directives/notices/n-504025 N 5040.25 | FHWA This directive was canceled May 10, 2018. Notice Subject Electro-Slag Welding Classification Code Date n fhwa https://highways.dot.gov/highway-history/general-highway-history/back-time/californias-pacific-coast-highway-highway-one California's Pacific Coast Highway-Highway One | FHWA By Rickie Longfellow Highway One follows the Pacific coastline from Baja to the top of the Olympic Peninsula. The most scenic is the 139 miles from Monterey to... pacific coast highway california one fhwa https://highways.dot.gov/federal-lands/tribal/safety/safety-reports-congress Safety Reports to Congress | FHWA The Fixing America's Surface Transportation Act (FAST) Section 1117, passed in December 2015, directs the Secretary of Transportation to complete two reports. reports to congress safety fhwa https://highways.dot.gov/federal-lands/careers/area-information Area Information | FHWA Eastern Federal Lands Highway DivisionEastern Federal Lands Highway Division is located at 22001 Loudoun County ParkwayBuilding E2, Suite 200, in Ashburn,... area information fhwa https://highways.dot.gov/highway-history/general-highway-history/us-1-fort-kent-maine-key-west-florida U.S. 1: Fort Kent, Maine to Key West, Florida | FHWA The story of U.S. 1 begins in 1925 with creation of the U.S. numbered highway system (see "From Names to Numbers" at... key west florida fort kent u https://highways.dot.gov/safety/hsip/xings/state-programs-fund-rail-crossing-safety-improvements State Programs Fund Rail Crossing Safety Improvements | FHWA Railway-Highway Crossings (Section 130) Program NOTEWORTHY PRACTICE State Programs Fund Rail Crossing Safety Improvements FHWA-SA-19-036 rail crossing safety state programs fund improvements fhwa https://highways.dot.gov/highway-history/general-highway-history/us-11-and-i-81-location-difficulties-virginia U.S. 11 and I-81 Location Difficulties in Virginia | FHWA In February and March 1998, John T. Greenwood interviewed Francis C. "Frank" Turner for the American Association of State Highway and Transportation Officials'... u s and i in virginia https://highways.dot.gov/laws-regulations/directives/notices/n-4510856 N 4510.856 | FHWA This directive was canceled December 14, 2021. Notice Subject APPORTIONMENT OF FEDERAL-AID HIGHWAY PROGRAM FUNDS FOR THE PERIOD BEGINNING ON OCTOBER 1, 2021,... n fhwa https://highways.dot.gov/fed-aid-essentials/videos/other-programs/infrastructure-bridge-load-rating-and-posting Infrastructure: Bridge Load Rating and Posting | FHWA Maintaining public safety through effective evaluation, posting, and enforcement. Companion Resource (PDF, 314 KB) : Includes the printable script for this... load rating infrastructure bridge posting fhwa https://highways.dot.gov/safety/hsip/xings/recording-devices-interconnected-grade-crossing-and-intersection-signal-systems APPENDIX F: SAMPLE INSPECTION AND DIAGNOSTIC REVIEW FORMS | FHWA Mn/DOT Annual Traffic Signal and Railroad Preemption Inspection Form North Carolina Department of Transportation Highway - Railroad Interconnection and... diagnostic review appendix f sample inspection https://highways.dot.gov/safety/rwd/reduce-crash-severity/mash-roundtables-summary-proceedings-2021 MASH Roundtables: Summary of Proceedings 2021 | FHWA mash roundtables summary proceedings fhwa https://www.fhwa.dot.gov/policy/ohim/hs04/htm/lgf21.cfm Highway Statistics 2004 - FHWA - Policy | Federal Highway Administration Policy and Governmental Affairs highway statistics fhwa policy federal https://highways.dot.gov/field-offices/new-mexico Welcome to the FHWA New Mexico Division | FHWA The Federal Highway Administration (FHWA) Division Offices are local field offices that provide leadership, guidance, and direction to State Departments of... welcome to the new mexico fhwa division https://highways.dot.gov/fed-aid-essentials/videos/project-construction-and-contract-administration/safety-and-operations-0 Safety and Operations: Transportation Management Plan Requirements | FHWA A well-designed traffic management plan can help minimize congestion, safety risks and other work zone impacts Companion Resource (PDF, 178 KB) : Includes the... safety and operations transportation management plan requirements fhwa https://highways.dot.gov/cfo/fy-2023-earmark-repurposing-process FY 2023 Earmark Repurposing Process | FHWA fy earmark repurposing process fhwa https://highways.dot.gov/safety/local-rural/maintenance-signs-and-sign-supports/v-sign-installation V. SIGN INSTALLATION | FHWA Location and Height of Signs When installing a sign for the first time or as a replacement to an existing sign, the sign technician should be aware of the... v sign installation fhwa https://www.transportation.gov/policy-initiatives/reconnecting-communities/nae-fy23-fhwa-general-terms-and-conditions-april-8-2024 NAE FY23 FHWA - General Terms and Conditions: April 8, 2024 | US Department of Transportation general terms and conditions https://ops.fhwa.dot.gov/program_areas/reduce-recur-cong.htm FHWA Operations - Reducing Recurring Congestion fhwa operations reducing recurring congestion https://highways.dot.gov/fed-aid-essentials/videos All Federal-aid Essentials Videos | FHWA Library Directory (click to navigate) federal aid essentials videos fhwa https://highways.fhwa.dot.gov/federal-lands/projects/ak/connecting-anchorage-trail-improvements Connecting Anchorage Trail Improvements | FHWA trail improvements connecting anchorage fhwa https://ops.fhwa.dot.gov/resources/news/news_detail.asp?ID=1180 FHWA Operations - News - Details operations news fhwa details https://highways.dot.gov/safety/hsip/xings/using-traveler-information-mitigate-blocked-rail-highway-crossings Using Traveler Information to Mitigate Blocked Rail-Highway Crossings | FHWA Railway-Highway Crossings (Section 130) Program NOTEWORTHY PRACTICE Using Traveler Information to Mitigate Blocked Rail-Highway Crossings Local Approaches to... traveler information using mitigate blocked rail https://mtc.ca.gov/tools-resources/digital-library/template-fhwa-funded-projects-statusxlsx Template FHWA Funded Projects Status | Metropolitan Transportation Commission MTC is the Metropolitan Transportation Commission. We are a public, governmental agency responsible for planning, financing and coordinating transportation for... funded projects template fhwa status metropolitan https://highways.dot.gov/highway-history/general-highway-history/zero-milestone-washington-dc-photo-gallery Zero Milestone - Washington, DC Photo Gallery | FHWA washington dc photo gallery zero milestone fhwa https://highways.dot.gov/highway-history/general-highway-history/first-usdot-secretary-visits-washington-division First USDOT Secretary Visits Washington Division | FHWA By Dan Mathis and Mike Canavan first usdot secretary visits washington https://www.mass.gov/news/healey-driscoll-administration-usace-fhwa-sign-agreement-to-move-forward-on-cape-cod-bridges-construction Healey-Driscoll Administration, USACE, FHWA Sign Agreement to Move Forward on Cape Cod Bridges... New document transfers $350 million in federal funding from USACE to FHWA, moves MassDOT further toward replacing the Sagamore Bridge https://highways.dot.gov/federal-lands/materials/ql-pay-installation-guide QL Pay Installation Guide | FHWA installation guide ql pay fhwa https://highways.dot.gov/safety/proven-safety-countermeasures/local-road-safety-plans Local Road Safety Plans | FHWA A local road safety plan (LRSP) provides a framework for identifying, analyzing, and prioritizing roadway safety improvements on local roads. The LRSP... local road safety plans fhwa https://ops.fhwa.dot.gov/publications/fhwahop20013/ch5.htm Detailed Analysis of ADS-Deployment Readiness of the Existing Traffic Laws and Regulations - FHWA... https://highways.dot.gov/safety/pedestrian-bicyclist/safety-countermeasures/las-vegas-pedestrian-safety-project-phase-2-7 CHAPTER 6 CONCLUSIONS AND RECOMMENDATIONS | FHWA This report summarizes the results of fifteen countermeasures installed at fourteen sites across the Las Vegas metropolitan to evaluate their effectiveness in... chapter conclusions recommendations fhwa https://www.transportation.gov/grants/reconnecting-communities/rcp-fy23-fhwa-general-updated-7222025 RCP FY23 FHWA - General (Updated 7/22/2025) | US Department of Transportation https://highways.fhwa.dot.gov/laws-regulations/directives/request-approval-cancel-fhwa-directives-and-policy-memorandums Request for Approval to Cancel FHWA Directives and Policy Memorandums | FHWA Subject: ACTION: Request for Approval to Cancel FHWA Directives and Policy Memorandums Date: June 18, 1999 From: Director of Administration Reply to Attn. of:... directives and policy request for to cancel approval fhwa https://highways.dot.gov/federal-lands/std-drawings FLH Standard Drawings for the FP-24 | FHWA FLH Standard Drawings are intended to cover various design elements and be applicable nationwide. Each standard drawing is available in both Metric and US... standard drawings for the flh fp fhwa https://highways.dot.gov/safety/data-analysis-tools/rsdp/rsdp-tools/highway-safety-information-system-hsis Highway Safety Information System (HSIS) | FHWA The Highway Safety Information System (HSIS) is a multistate database that contains a large number of crash, roadway inventory, and traffic volume data for a... highway safety information system hsis fhwa https://highways.dot.gov/cfo/2015-programs-modified-or-discontinued-map-21-may-lapse-funds-september-30-2015 2015 Programs Modified or Discontinued by MAP-21 May Lapse Funds on September 30, 2015 | FHWA https://www.fhwa.dot.gov/ipd/value_capture/case_studies/pasco_county_fl_multimodal_mobility_fee.aspx FHWA - Center for Innovative Finance Support - Value Capture - Case Studies: Pasco County, Florida:... https://highways.dot.gov/fed-aid-essentials/videos/other-programs/using-consultants-hiring-consultant-using-competitive Using Consultants: Hiring a Consultant Using Competitive Negotiation Procedures | FHWA Consultants are selected based on qualifications and experience when competitive negotiation procedures are required Companion Resource (PDF, 323 KB) :... hiring a consultant using consultants competitive negotiation https://highways.dot.gov/federal-lands/design/plan-prep/wfl/samples/approach-section Approach Section (WFL) | FHWA approach section wfl fhwa https://www.transportation.gov/policy-initiatives/reconnecting-communities/rcp-fy23-fhwa-general-terms-and-conditions-april-8-2024 RCP FY23 FHWA - General Terms and Conditions: April 8, 2024 | US Department of Transportation general terms and conditions https://www.fhwa.dot.gov/ipd/how_business/ FHWA - Center for Innovative Finance Support - How the Center Does Business center for innovative finance fhwa support business https://highways.dot.gov/federal-lands/flap/mn/agency-contacts Agency Contacts (MN FLAP) | FHWA agency contacts mn flap fhwa https://highways.dot.gov/safety/speed-management/procedures-setting-advisory-speeds-curves/chapter-2-conveying-changes Chapter 2. Conveying Changes In Horizontal Alignment | FHWA 2.1 Overview This chapter provides a brief overview of topics related to horizontal curve safety, operation, and curve warning signs. It consists of three... horizontal alignment chapter conveying changes fhwa https://www.fhwa.dot.gov/ipd/value_capture/case_studies/yankton_sd_napa_junction_rail_industrial_park.aspx FHWA - Center for Innovative Finance Support - Value Capture - Case Studies: Hays County, Texas... https://highways.dot.gov/safety/pedestrian-bicyclist/safety-tools/43-guide-planning-design-and-operation-pedestrian 4.3: Guide for the Planning, Design, and Operation of Pedestrian Facilities | FHWA The purpose of this guide is to provide guidance on the planning, design, and operation of pedestrian facilities along streets and highways. Specifically, the... https://highways.dot.gov/laws-regulations/directives/orders/51811c 5181.1C | FHWA 51811c.pdf (300.85 KB) Order Subject Emergency Reporting Proc fhwa https://highways.dot.gov/safety/proven-safety-countermeasures/memorandum-promoting-and-implementing-updated-proven-safety Memorandum: Promoting and Implementing the Updated Proven Safety Countermeasures - 2017 | FHWA Subject: ACTION: Promoting and Implementing the Updated Proven Safety Countermeasures Date: September 26, 2017 From: Elizabeth Alicandri safety countermeasures memorandum promoting implementing https://highways.dot.gov/safety/pedestrian-bicyclist/safety-countermeasures/pedestrian-safety-engineering-and-its-based-5 Abbreviations | FHWA ADA Americans with Disabilities Act FHWA Federal Highway Administration ITS Intelligent Transportation Systems JPO Joint Program Office LED Light-Emitting Diode abbreviations fhwa https://highways.fhwa.dot.gov/federal-lands/tribal/bridge/biatribal-bridge-inspection-program BIA/Tribal Bridge Inspection Program | FHWA Beginning under MAP-21 and continuing in the FAST Act, all BIA and tribally owned bridges open to the public must adhere to National Bridge Inspection... bridge inspection bia tribal program fhwa https://highways.dot.gov/highway-history/general-highway-history/u-s-department-agriculture-office-information-press-service U. S. DEPARTMENT OF AGRICULTURE OFFICE OF INFORMATION PRESS SERVICE | FHWA Released for Publication, Sunday, October 9, 1927 department of agriculture office information press service fhwa https://highways.dot.gov/safety/learn-safety/noteworthy-practices Roadway Safety Noteworthy Practices | FHWA roadway safety noteworthy practices fhwa https://highways.dot.gov/field-offices/nebraska Welcome to the FHWA Nebraska Division | FHWA The Federal Highway Administration (FHWA) Division Offices are local field offices that provide leadership, guidance, and direction to State Departments of... welcome to the fhwa nebraska division https://highways.dot.gov/safety/rwd/provide-safe-recovery/safetyedge/safetyedge-guide-specification SafetyEdge Guide Specification | FHWA DESCRIPTION Incorporate a Safety EdgeSM to the dimensions shown and at locations designated on the contract documents. The finished shape of the Safety EdgeSM... guide specification fhwa https://highways.dot.gov/foia/fhwa-foia-electronic-reading-room FHWA FOIA Electronic Reading Room | FHWA 2024-2027 Alaska State Transportation Improvement Program (STIP) FHWA/FTA Joint Federal Planning Finding electronic reading fhwa foia room https://highways.dot.gov/safety/pedestrian-bicyclist/residents-guide-creating-safer-communities-walking-and-biking/section-2 Section Four: I need more information! | FHWA This section provides a listing of organizations and references that can help you find more in-depth information. National Bicycle and Pedestrian... i need more information section four fhwa https://highways.dot.gov/safety/local-rural/implementing-local-road-safety-plan/5-results-implementation 5. Results of Implementation | FHWA The following sections describe success stories that resulted from the successful implementation of a LRSP. Thurston County, WA results implementation fhwa https://www.fhwa.dot.gov/ohim/tvtw/11juntvt/region.cfm ohim/tvtw/11juntvt Regions Map - June 2011 - FHWA regions map ohim june fhwa https://highways.fhwa.dot.gov/laws-regulations/directives/notices/n-4510281 N 4510.281 | FHWA Notice Subject APPORTIONMENT OF THE FISCAL YEAR (FY) 1993 NATIONAL HIGHWAY SYSTEM FUNDS Classification Code Date N 4510.281 October 1, 1992 n fhwa https://highways.fhwa.dot.gov/federal-lands/design/forms/efl/70-design-review-checklist 70% Design Review Checklist | FHWA Rev: 01-Jan-2022 Note: This form is not viewable within a web browser. Download the document for viewing and use. design review checklist fhwa https://www.transportation.gov/grants/reconnecting-communities/nae-fy23-fhwa-general-updated-11-04-25pdf NAE FY23 FHWA - General (updated 11-04-25).pdf | US Department of Transportation https://docs.lib.purdue.edu/roadschool/1984/proceedings/12/ Purdue e-Pubs - Purdue Road School: What is Going on at FHWA Level Past, Present and Future By William Emrich, Published on 03/06/84 https://highways.dot.gov/highway-history/interstate-system/50th-anniversary/section-4f Section 4(F) | FHWA The Department of Transportation Act of 1966 included an environmental provision that had a major impact on the Interstate System and other Federal-aid highway... section f