文档介绍：DESIGN PROCEDURES
FOR
HYDRAULIC STRUCTURES
2001
TABLE OF CONTENT
Page 1 Design Procedures For Hydraulic Structures
TENNESSEE HYDRAULICS MEMORANDA
NO. Titlle
01 Definitions For Cast-In-Place & Precast Concrete and Corrugated
Metal Structures
02 Design of Waterway Openings
03 Index Of Flood Studies By TVA, Corps of Engineers, and USGS,
and FEMA Flood Insurance Studies
04 Approval Of Bridge Plans By Outside Agencies
05 Improved Inlets For Culverts And Box Or Slab Bridges
06 Drainage Of Bridge Decks
07 Scour and Fill At Bridge Waterways
08 Rip-Rap For Bridge Waterways, Open Channels, and Grade
Crossings
09 On Site Inspection Report
1/9
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DESIGN PROCEDURES FOR HYDRAULIC STRUCTURES
Tennessee Department of Transportation
1. Determine the drainage area of the site, in mi2 (km2).
2. Determine the hydraulic design responsibility. See below for details.
3. Check for previous hydraulic studies at or near the site:
A. Corps of Engineers, TVA and . Flood Insurance Study and Maps. See Tennessee
Hydraulics Memorandum 03, “Index of Local Flood Studies by TVA, Corps of Engineers
and . Flood Insurance Studies”.
B. USGS flood studies.
C. Previous TDOT projects.
4. Check for stream gage data at or near the site. Gage should be within 50 % of the site's
drainage area.
5. All designs are to be in English units (except where metric is specifically called for).
6. Determine the flood frequencies for the site, in ft3/s (m3/s). Discharges are to be determined as
shown below. Methods are shown in order of decreasing preference. Plot discharge vs.
recurrence interval as shown in Figure 1.
· Method 1: Existing FEMA Flood Insurance Study (FIS).
· Method 2: Analysis of gage data within the watershed.
· Method 3: Regression equations from the following USGS publications.
· For rural drainage basins: “Flood Frequency of Streams in Rural Basins of
Tennessee” 92-4165
· For urbanized drainage basins: “Synthesiz