9593

• UCREFRP Catalog Number: 9593
• Author: Tetra Tech Inc.
• Title: Concept Development Report Hartland Diversion Dam Fish Passage Structure Delta, Colorado.
• USFW Year: 2000.
• USFW - Doc Type: Grand Junction, CO.
• Copyright Material: NO

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TABLE OF CONTENTS

EXECUTIVE SUMMARY... ... ." .., ... '" ...... ." .., .,. ... ... ... ... .., ...... ...... ... ... ...... ... E-1
I. INTRODUCTION............ ......... ... ...... ... ... ... ... ... ... ... ...... ......... ...... ... ... ... 1

II.

2.1
2.2
2.3
2.4
2.5
2.6
2.6.1
2.6.2

III.
3.1
3.2
3.3
3.4
3.5
3.6

IV.

4.1
4.2
4.3
4.4
4.5

V.

5.1
5.2
5.3

VI.

6.1
6.1.1
6.1.2
6.1.3
6.1.4
6.1.5
6.2
6.2.1
6.2.2
6.2.3
6.2.4
6.3
6.3.1

SITE DESCRIPTION AND OPERATIONS ........................................................... 2

Site Description.................................... .............................................. ........... 2

Spill Channel Site Description...... ........................................... ......... .............. 2

Diversion Operations......... ............................................. ............ ...... ............. 4

Spill Channel Operations ......... ................................... ..... ......................... ..... 5

Dam Structure..................................... .'...................... ................................... 5

Site Survey.................................................................................................... 6

Diversion Dam.......................... ........... ........ .................................. ........... 6

Spill Channel............ .......... .................................................... ................... 6

FISH PASSAGE CRITERIA ................................. ............. ....... ......................... 7

Migration........................................................................................................ 7

Swimming Ability....... ........................... ......................... ...... .......................... 8

Behavior................... ............................................................................. ........ 9

Hartland Diversion Operations................... .................................................. 10
Miscellaneous Facility Requirements.......................... .......... ...... ...... ..... 11
Fish Screen Criteria... ...... ... ...... ... ... .'. ...... ............ ............ ...... ... ...... ... 11

HyDROLOGy............................................ .,.................................................... 13

Flood Events...... ....................... ................................................................... 13

Diversions and Returns........................................ ....................................... 14

Average Monthly Flows ...................................................... ......................... 14
Summary of Design Flows............................... ...................... ...................... 15
Ditch flows for Fish Screen Design .............................................................. 16

HYDRAULICS.. ..... ................. ......................................................................... 17

Model Calibration, Hydraulic Parameters..................................................... 18

Model Results....................................... ........................................................... 20

Ditch Hydraulics for Fish Screen Design...................................................... 21
FISH PASSAGE ALTERNATIVES .......... .... .................. .... .............................. 22

Alternative I................. ....... ....... ................................................................... 22

Baffles. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . .' 23

Alignment..... ............ ....................... .................................................. ...... 23

Elevations............. ................ ................................................ ........ .......... 24

Attractive Flow.... ........... ..... .................................................... ..... ........... 25

Access........ ............. ....................... .................................. ................ ...... 25

Alternative 11................................................................................................. 26

Alignment............................................................................... ................. 26

Elevations............................................................................................... 27

Attractive Flow................ ..................................................................... ... 27

Access......................... .......................................................... ...... ........... 27

Alternative 111..................... ................ ........................................................... 27

Alignment................................................................................................ 29