U.S. Department of Transportation/Federal Highway Administration

Office of Planning, Environment, & Realty (HEP)
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FHWA Contact

Christopher Douwes
Trails and Enhancements Program Manager
Federal Highway Administration
FHWA HEPH-10 Rm E74-474
1200 New Jersey Ave SE
Washington DC 20590-0001
Phone: 202-366-5013
Fax: 202-366-3409

State Coordinator Contact Information

Each State administers its own program. Contact your State Bicycle and Pedestrian Coordinator for guidance on State policies and project eligibility requirements.

Designing Sidewalks and Trails for Access

Part II of II: Best Practices Design Guide

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Slope Conversion Chart

%	Ratio	Degree	%	Ratio	Degree
0.9	1:111	0.5	6.3	1:16	3.6
1.0	1:100	0.6	6.7	1:15	3.8
1.1	1:90	0.6	7.1	1:14	4.1
1.2	1:83	0.7	7.7	1:13	4.4
1.3	1:80	0.7	8.3	1:12	4.8
1.4	1:70	0.8	9.1	1:11	5.2
1.7	1:60	1.0	10.0	1:10	5.7
2.0	1:50	1.1	11.1	1:9	6.3
2.2	1:45	1.3	12.5	1:8	7.1
2.5	1:40	1.4	14.3	1:7	8.1
2.9	1:35	1.6	16.7	1:6	9.5
3.3	1:30	1.9	20.0	1:5	11.3
4.0	1:25	2.3	25.0	1:4	14.0
5.0	1:20	2.9	33.3	1:3	18.4
5.3	1:19	3.0	50.0	1:2	26.6
5.6	1:18	3.2	100.0	1:1	45.0
5.9	1:17	3.4

Updated: 05/07/2012

HEP Home Planning Environment Real Estate

Federal Highway Administration | 1200 New Jersey Avenue, SE | Washington, DC 20590 | 202-366-4000