n. Where it is impossible to place the concrete for the arch in asingle day, the arch ring should be divided into either longitu-Placing of dinal or transverse sections such that each section will consti-Concrete tute & Jays work. Both methods have been used quite ex-tensively. However, most… … 32 SMALL CONCRETE BRIDGES AND CULVERTS Table No. 5, Plain Concrete Arch Bridg e, 16-Foot Roadway GUARD RAIL i REINFORCEMENT Span Crown Spring btLine Rl R2 : 1 12 a Rod, b No.| Size Spac- ...■nirtl No. Size Spy Length 10 12 3- 6 5-0ll 9 :^1 S W 12 13 Id W 24 5 £6 12 13 3 10 6-0|13 6 3 8 ), 12 l.V 18…
Bridges · Concrete · Culverts
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