Glendale Water Supply Improvement Project

1
Public Safety

• and
• Recreational Boater Passage

2
Who is the Public?

• Visitors to Fishermans Park
• Recreation trail users
• Fishermen
• Rafters and kayakers
• Swimmers and innertubers

3
Existing Diversion

• Rubble pile
• Protruding steel
• Breach at left end

• Islands of trees
• Eastman Ditch blocked
• Park flooding

4
Glendale Site
Blocked entrance to Eastman Ditch
Fishermans Park and recreation trail
Islands of trees
Breach in weir crest
Rubble pile weir
5
Design Guidelines

• Avoid increasing flooding
• Minimize entrapment dangers
• Create safe hydraulic conditions

6
Minimize Dangers

• Remove concrete chunks
• Remove islands of trees
• Dissipate energy gradually

7
Boater Passage and Safety

• Minimum of 6 inches water depth
• Boulder spacing gt 15 feet
• Safe hydraulic jumps

8
A-Jumps
High water in pool Jump on face of drop Dangerous
if uniform
Flips tubers and novices Fun for kayakers
9
B-Jumps
Plunging water into pool Jump downstream of
drop Dangerous if uniform or deep
Traps swimmers/boats Can be fun if controlled
10
Undulating Jumps
Series of waves in pool V-shape waves Less
dangerous than A- and B-Jumps when uniform
Little tendency to keep swimmers Fun and safe for
kayakers
11
Profile of a generic boat pass
12
Velocities in a generic boat pass
13
Jump behavior at diversion with 6 slope