1. Capital Metro Downtown Station Improvements
CMTA Board Briefing – April 2017
72” Storm Drain System Betterment

2. Downtown Station Project Location
Storm Drain Context
Downtown Station Project Location

3. Storm Drain Context Existing Undersized Storm Drain Pipe (30”)
Outfall – Waller Creek &
Water Quality Pond

4. Overlapping Downtown Station footprint = ~1.3 acres (7%)
Storm Drain Context
19 Acres of Drainage
Overlapping Downtown Station footprint = ~1.3 acres (7%)

5. City Requirements
72” Upgrade (Betterment)
66” Upgrade (Betterment)

6. City Requirements 72” Upgrade (Betterment)
Other Upgrades 36” & 18” (Betterment)
66” Upgrade (Betterment)

7. Impact Study without Pipe Upgrades By Independent 3rd-Party Engineer

8. Impact Study without Pipe Upgrades By Independent 3rd-Party Engineer

9. City Requirements - Summary Estimated Costs = $7. 0M - $7
City Requirements - Summary Estimated Costs = $7.0M - $7.5M (includes $500K contingency) City of Austin 50% up to $3M max; CMTA remainder of costs ($4M - $4.5M) Includes all storm drain, water quality, utility relocations, hardcosts, softcosts, contingencies

10. CMTA Suggested Compromise Estimated Costs = $5M (50/50 split = $2
CMTA Suggested Compromise Estimated Costs = $5M (50/50 split = $2.5M each) $6M max budget; $3M each party Includes all storm drain, water quality, utility relocations, hardcosts, softcosts, contingencies

11. Downtown Multimodal Station
Thank you.
Downtown Multimodal Station 11