handrail on drainage culvert headwall

[PDF]CULVERT DESIGN - Iowa Department of Transportation

A culvert is a drainage structure that passes under a roadway. In the Bureau a culvert is located and ... Additional features such as tapered or drop inlets scour floors handrails trash racks and fish baffles are specially designed and added to project plans as needed. ... cast-in-place culvert barrel floor or headwall apronafter .【Get Price】

[PDF]Standard Precast Concrete Headwalls - Althon

CH20C Culvert Headwall Range CH28C Culvert Headwall Range H40C Headwall Range H42C Headwall Range ... All drainage pipes discharging into open watercourse such as swales ditches ponds and rivers should be ... Klamp handrail Maximum pipe size 300mm Backwall height 800mm Specifiable pipe invert levels Optional pre-fitted【Get Price】

[PDF]SECTION 7 – CULVERTS - Round Rock Texas

Drainage Criteria Manual SECTION 7 - CULVERTS SECTION 7 - CULVERTS 7.1.0 GENERAL The function of a drainage culvert is to pass the design storm flow without causing excessive backwater or overtopping of the structure and without creating excessive downstream velocities. The designer shall keep energy losses and discharge velocities 【Get Price】

Headwalls with Handrails - Althon

Factory fitting handrails to headwalls means the headwalls do not have to be drilled once on site. The headwalls will be delivered without the handrail attached for ease of delivery and installation. We also offer handrails on our headwalls with access gates walkthroughs and ladders down the back wall of the headwall or on the wingwalls.【Get Price】

[PDF]Culvert and Drainage Inlet/Outlet Safety Guidelines - …

Handrails shall be a minimum of 1050 mm high with a three rail configuration (see typical in Figure A-1) in Class A to Class C exposure areas and a two rail configuration in Class D and E exposure areas as per Figures 9-11 and 9-10 respectively in the USBR manual. Handrails that will be subject to exposure to ice break-up on the river shall have1MB【Get Price】