00368912

Component

http://onlinepubs.trb.org...s/trr/1982/859/859-004.pdf

https://scholar.google.co...msky&publication_year=1982

The Pennsylvania Department of Transportation (PennDOT) has placed, and continues to place, emphasis on value engineering--the use of alternative cost-effective materials or procedures to perform a common function. As a result of this emphasis, a nylon erosion-control mat was recently field tested as a ditch lining on a project that was originally designed for rip-rap or paved-concrete lining. This nylon mat, installed with either a bituminous or wood cellulose surface treatment, provided a functional and economic erosion-control measure. In the trapezoidal ditches calculated, nonvegetated velocities were as high as 20 ft/s and vegetated velocities were as high as 8 ft/s. The mat installation resulted in a 60-70 percent cost saving over the rip-rap or paved-concrete lining atlernatives. PennDOT has included this nylon mat in its general specifications as a result of the positive findings on this project. A significant benefit of this stabilizing fabric was the structural integrity it provided to the vegetation root system. The use of the nylon mat instead of the rip-rap or paved-concrete alternatives also resulted in slower final velocities and lower flow concentrations. (Author)

Publication of this paper sponsored by Committee on Roadside Maintenance. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved

01411661

pp 15-17

1982

Transportation Research Record

0309033624

Print

Figures (3) ; References (4) ; Tables (1)

Bitumen; Cellulose; Ditches; Erosion control; Field tests; Mat footings; Nylon; Surface treating; Wood

Mats

Geotechnology; Highways; Maintenance and Preservation; I61: Equipment and Maintenance Methods

TRIS, TRB

Jan 31 1983 12:00AM

• ENVIRONMENTALISM, PESTICIDE USE, AND RIGHTS-OF-WAY (ABRIDGMENT)
• FERTILIZATION AND LEGUME ESTABLISHMENT ON HIGHWAY SLOPES
• HOW RESEARCH BENEFITS CALIFORNIA'S ROADSIDES (ABRIDGMENT)
• MONITORING WILDLIFE POPULATIONS AND ACTIVITY ALONG I-95 IN NORTHERN MAINE BEFORE, DURING, AND AFTER CONSTRUCTION
• MULE DEER BEHAVIOR IN RELATION TO FENCING AND UNDERPASSES ON INTERSTATE 80 IN WYOMING
• OPERATION AND MAINTENANCE OF SAFETY REST AREAS (ABRIDGMENT)
• REPORT FROM COMMITTEE ON ROADSIDE MAINTENANCE