What is an inlet apron?

Apron / Depressed Gutter Inlet aprons or depressions increase inflow effectiveness. Aprons typically drop 2 inches into the bioretention cell, with another 2-inch drop behind the curb to maintain inflow as debris collects.

What is a culvert inlet?

A culvert is a relatively short segment of conduit that is typically used to transport water underneath a roadway or other type of earthen embankment. The culvert itself consists of an entrance, an outlet, and a culvert barrel.

What is the top of a culvert called?

Critical Slope – a slope that sustains a given discharge at a uniform and critical depth. Crown – the inside top of the culvert. Embedment – pipe embedment comprises the soil that is placed under and around the pipe immediately above the bedding, to support the load on the pipe.

Which way does the bell go on concrete pipe?

There is a general rule of laying precast concrete pipes: the precast concrete pipes should be laid from downstream end to upstream end. Moreover, precast concrete pipes should preferably be laid with spigot end pointing downstream direction when fitted into sockets.

What kind of apron for corrugated metal pipe?

04-21-20 Metal Arch Aprons (for Corrugated Metal Pipe) DR-205 04-21-20 Concrete Apron with End Wall DR-206 04-21-20 Low Clearance Concrete Pipe Apron With End Wall DR-211 04-21-20 Metal Safety Slope Apron 6:1 Slope DR-212 04-21-20 Beveled Pipe and Guard DR-213 04-21-20 Pipe Apron Guard DR-301

What kind of aprons do they use in Iowa?

Concrete Aprons DR-202 04-21-20 Low Clearance Concrete Pipe Aprons DR-203 04-21-20 Metal Pipe Aprons and Beveled Ends DR-204 04-21-20 Metal Arch Aprons (for Corrugated Metal Pipe) DR-205 04-21-20

Why do you need scour apron for culvert outlet?

When properly installed, they help to reduce the depth, velocity and energy of water discharging from the outlet pipe. The scour apron is placed at the base of the inlet our outlet and is designed specifically to prevent scour and erosion on the base.

Where to learn the basics of culvert and inlet design?

The Basics of Culvert and Inlet Design An Approved Continuing Education Provider  PDHonline Course C619 (8 PDH)  The Basics of Culvert and Inlet Design  Jerry D. Morrow, PE  2013  PDH Online | PDH Center   5272 Meadow Estates Drive Fairfax, VA 22030‐6658 Phone & Fax: 703‐988‐0088 www.PDHonline.org www.PDHcenter.com