Drainage Rules for Rural Roads and Proper Slopes
A 19th century trench guide on road surfaces, grades, and drainage. It explains how surface texture, grading, and underdrainage prevent washouts, with emphasis on 3 to 4 percent grades, side ditches, water breaks, and cross sections to keep roads durable under heavy traffic and wet conditions.
Also Mentioned on This Page
Svea
Gothenburg
Sweden
U.S
Pacific Court Department
Edward Brown & Sons
California St
San Francisco
H. Hackfeld & Co., Ltd
Hilo
Rainier Bottling Works
Honolulu
California
Cal
California Fertilizer Works
Hiro
L. Turner CO. Limited
Reaven
Oity
Hawaii
W.c.peacock & Co. Limited
Pabst Brewing CO
Milwaukee
American Brewing CO
ST. Louis
N. Ohlandt & CO
Alaska
Market Street
San Francisco, Gal
Saiine Sysi
IR. T. Guard
Hawaiian Islands
Enterprise Planing Mill Company
Gheo, Mumrby, Mgr
Hilo Mercantile Co
Waiakea Boat House
R.A, Lucas & CO
Prop'rs
Waiakea Bridge
Hitor
Wolverine
Enine
H. P
Lucas