City of Pensacola
Stormwater Program
Update
Public Works and
Facilities Department

February 2019

 Introduction
• Stormwater Management Strategies adopted by City Council in
October 2000 to set long-term goals for successful stormwater
management program focused on enhancing Water Quality of
area waterways.
• Stormwater Utility Fee adopted in 2001 to provide an
established funding mechanism to support the stormwater
management program.
• Update is centered around activities over past 5 years due to
the significant volume of projects that have taken place.
• Three (3) Main Project Categories: Budgeted Capital, Grant
Improvement and Grant Emergency Repair totaling
approximately $33,134,613 over the past 5 years.

 Introduction
• Stormwater Management
Strategies adopted by City
Council in October 2000 to
set long-term goals for
successful stormwater
management program
focused on enhancing Water
Quality of area waterways.
• Stormwater Utility Fee
adopted in 2001 to provide
an established funding
mechanism to support the
stormwater management
program.

 Introduction
• Update is centered around activities over past 5 years due to
the significant volume of projects that have taken place.
• Three (3) Main Project Categories
• 1) Budgeted Capital

$8,654,471

• 2) Grant Improvement

$14,061,530

• 3) Grant Emerg. Repair

$10,418,612

• Totaling approximately

$33,134,613

 Budgeted Capital Projects
• Stormwater projects that are primarily funded from the
Stormwater Utility Fee and approved by City Council via 5year revolving plan as part of the annual budget process.
• Stormwater Utility Fee generates approximately $2.5M/year
and can be increased by City Council incrementally.
• Projects are generally identified to address both water
“Quality” (treatment) and “Quantity” (flooding) where the
need is most prevalent and feasible to perform projects
within allocated budgets.
• Professional Engineering studies are utilized as a ”guide”
for developing and prioritizing project lists for the 5-year
revolving plan, especially in sensitive drainage basins that
directly impact Pensacola Bay, Carpenter Creek, Bayou
Texar and Bayou Chico.

 Budgeted Capital Projects
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•

19th Ave. and Blackshear Ave. Outfall at Bayou Texar
Bayou Chico North Stormwater Enhancement
Bayou Chico South Stormwater Enhancement
Clematis Street at Carpenter Creek Stormwater Enhancement
Baywoods Gully Erosion Stabilization
12th Ave. @ Bayou Texar Stormwater Enhancement
Desoto Street @ Bayou Texar Stormwater Enhancement
Northmoor Court Stormwater Enhancement
‘B’ and Main Street Stormwater Enhancement
Davis Hwy @ Valley Drive Stormwater Enhancement
Manolete Drive Stormwater Enhancement
Carpenter Creek at Bayou Blvd Stormwater Enhancement
Bayou Drive @ Bayou Chico Stormwater Enhancement
Bayou Blvd at Tyler Stormwater Enhancement
Carpenter Creek @ 9th Avenue Stormwater Enhancement
Gaberonne Swamp Stormwater Improvements
Woodcliff Dr. at Livingston Outfall Stormwater Enhancement
Pipe Rehabilitation Project A Street

Total

$ 918,455
$ 304,319
$ 192,060
$ 414,589
$ 315,553
$1,047,455
$ 373,666
$ 62,288
$ 171,131
$ 375,505
$ 304,889
$ 293,763
$ 257,745
$ 793,780
$ 343,609
$1,246,381
$ 363,286
$ 875,997

$8,654,471

  

Budgeted Capital Projects 5-Yr Plan

 

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Woodcliff and Livingston Project

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Woodcliff and Livingston Project



 

 Street Pipe Rehabilitation Project

 

Grant Improvement Projects
• Stormwater projects that are primarily funded from federal
and state sources include EPA 319, Florida Forever, FDEP
TMDL, etc.
• Stormwater projects that are funded by “other” sources
include BP settlement funds (Restore Act), etc.
• Projects are typically derived from specific environmental
benefit identified through observation and study.
• Project scopes normally address direct benefit and
improvement of delicate ecosystems, socio-economic
benefits, recreation and public education/awareness.

 Grant Improvement Projects
• Gaberonne Swamp Stormwater Improvements
EPA 319
• PNS Airport Stormwater Pond FDOT
• Government Street @ Corinne Jones Park NFWF
BP Settlement Funds
• Bill Gregory Park Stormwater Project NFWF
• ‘R’ Street @ Maggie’s Ditch Stormwater Project NFWF
• 4190 Rommitch Lane Demolition HMGP
• 12th and Cross Street Stormwater Project HMGP*
• ‘L’ Street and Zaragossa Stormwater Project HMGP*
• Lee Street Stormwater Project HMGP*
• Drainage Improvements for Localized Flooding
BP Settlement funds

• Total
*denotes pending final funding approval from DEM

$1,784,118

$3,249,384
$2,106,500
$1,212,099
$1,723,565
$ 597,719
$ 166,073
$1,307,982
$ 756,123
$ 742,221
$ 415,746

$14,061,530

 PNS Airport Regional Stormwater Facility

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Gaberonne Swamp Project

EXISTING ECUA
LIFT STATION
TO BE RELOCATED

EMF #1
PROPOSED INFILTRATION
BASIN

DWA-

NEW FLOW PATHS
T0 DISCHARGE POINT

APPROX. MILE

1! a
EXISTING SWAMP OUTFALL

BOX CULVERT
TO PENSACOLA BAY

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BMP #2
WET DETE 0N
POND MOD ICATION

 

IMPACTED WETLANDS TO BE

RESTORED BY ACCESS ROAD
REMOVAL

RETURN EXISTING ECUA
ACCESS ROAD TO EXISTING
GRADE TO RESTORE HYDROLOGY

 

Gaberonne Swamp Project

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Gaberonne Swamp Project

PRIMARY INFLOW 
FROM 
SUBDIVISIONS

 

  
 

 

  
    
   
 

  

RAISE DISCHARGE WEIR TO
?9 EXISTING OUTFALL STRUCTURE
TO DISCHARGE FOR EXTREME
EVENTS ONLY

    
   
 
  

REROUTE INFLOW PIPE TO
ELIMINATE SHORT CIRCUITING

  
   
  
 

  

NEW OUTFALL PIPE TO DISCHARGE

POND INTO GABERONNE SWAMP TO FOR FURTHER

TREATMENT AND REHYDRATION OF WETLAND.
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Gaberonne Swamp Project



 

Gab. Swamp Project (Spanish Trail ?Site 2)

 

Government Street Corrine Jones Park

 

Government Street Corrine Jones Park


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Government Street Corrine Jones Park




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Government Street Corrine Jones Park

2018
Excellence Award
Presented to

CITY OF PENSACOLA

GOVERNMENT STREET REGIONAL POND
AT COUNNE JONES PARK

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Bill Gregory Park Stormwater Project

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511 Street at Maggie?s Ditch Project

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Grant Emergency Repair Projects
• Stormwater projects that are primarily funded from federal and
state sources FEMA, NRCS, FHWA and FDEM.
• Projects are typically derived from catastrophic occurrences and
primarily include atypical rainfall events and tropical system
events.

• The April 29, 2014 rainfall event statistically rated between a 500
and 1000 year occurrence with over 25” of rainfall within a 72 hour
period causing significant devastation to stormwater
infrastructure.
• Project scopes normally address direct repair/replacement of
damaged infrastructure and certain grants allow for improvements
and/or “mitigation” to harden and provide improved long-term
resiliency.

 Grant Emergency Repair Projects
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•

Baywoods Gully Stabilization FEMA/NRCS
Piedmont Road Repair FEMA
Spanish Trail Pond Repair FEMA
DeSoto Street Repair FAMA
Seville Drive Stormwater Outfall FEMA
Long Hollow Pond Berm Repair FEMA
Scott Street Repair FEMA
Main Street Repair FHWA
Southern Bulkhead Mitigation Site FEMA
Maxwell Street Repair FEMA
Wright Street Repairs FEMA
Coyle Street Repair FEMA
L Street Stormwater Repair FEMA
12th Avenue Repair FEMA
Bayou Texar Dredging FEMA
Various Smaller Repair Sites FEMA
Carpenter Creek Repair & Stabilization NRCS

• Total

$ 2,952,224
$2,164,206
$1,165,709
$ 94,966
$ 60,530
$ 159,004
$ 59,254
$ 65,215
$ 57,225
$ 132,105
$ 11,706
$1,433,174
$ 188,894
$ 190,341
$ 654,619
$ 700,731
$ 328,709

$10,418,612

 Baywoods Gulley Project

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Baywoods Gulley Project

 

Piedmont Road Hallmark Road Repairs

   
 

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20th Ave and Lloyd Street Repairs

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12th Ave and Euclid Street Repairs


Main Street at Coyle Street Repairs

 

Stormwater Quantity and Quality
• Stormwater Management Strategies typically focus on
addressing water Quality (treatment) and/or water Quantity
(flooding) aspects.
• Focus is primarily on addressing Stormwater Quality due to
ready availability of technology and resources.
• Stormwater Quantity or Flooding is also addressed on every
project where feasible and possible to do so.
• Projects are identified through both professional Engineering
studies and public input based upon actual field
observations/occurrences.
• Proposed projects are programmed into the 5-year revolving
capital plan and grant funding opportunities are also pursued.
• Stormwater improvement projects are often incorporated into
other types of capital projects to maximize public benefit, like
roadway projects, etc..

 Stormwater Quantity (flooding) -facts
• Stormwater quantity or flooding issues are most challenging
due to high cost and limited resources available to make a
significant difference or improvement.
• Most flood-prone areas of the City are located near water
bodies (Pensacola Bay) where tidal influence in a significant
factor/challenge.
• Significant Flood-prone areas also occur where upstream
contributions cannot be controlled by the City (i.e. Long
Hollow).
• Most existing stormwater infrastructure has been in place for
decades and has very limited capacity to convey stormwater
during significant rainfall events.
• Efforts are made on every project to upgrade stormwater
infrastructure to current standards and address localized
flooding issues to greatest extent possible.

 Stormwater Quantity (flooding) -accomplishments
• City has successfully conducted in-depth stormwater studies in
areas of most significant flooding issues to identify specific
causes and proposed solutions. Study areas include Long
Hollow, Aragon, Downtown and Piedmont Road. Total approx.
cost was $355,000 for the studies.
• City has recently revised the Land Development Code
stormwater attenuation requirements from the 25 yr. event to
the 100 yr. event for new development projects. Change will
significantly help with current flood-prone areas when new
projects are developed.
• City is currently updating Stormwater Master/Management Plan
and will be completed in FY 2019. Plan will provide and identify
updated infrastructure needs to address City-wide flooding
comprehensively and prioritize efforts going forward. Updated
plan will also allow City to be more attractive in the receipt of
grants for new projects and will help lower CRS number.

 Stormwater Quality (treatment) -facts
• Stormwater quality projects typically have a design target
pollutant removal efficiency of 70-80% total suspended solids
(TSS).
• Projects primarily include underground treatment systems or
“Proprietary Units” and stormwater ponds, swales and ditches.
• Due to the very limited availability of open land for the
construction of stormwater ponds, proprietary units are most
commonly used in treatment projects.
• The City currently has 54 stormwater ponds and 108
proprietary units in-place.
• Proprietary units are typically placed near outfall locations at
water bodies in order to provide for the most effective pollutant
removal.
• Pollutants removed typically consist of floating trash/debris,
hydrocarbons (oil, greases, etc.), heavy metals and nutrients.

  

Stormwater Quality (treatment) -facts

TVIoical Proprietary Units

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

  
 
 
 
 
  
 
  


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FLOATABLES

CHAMBER FLOATABLES

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Stormwater Quality (treatment) -accomplishments
• Stormwater retro-fit program is very aggressive in comparison
to other communities throughout the state of similar size and
function.
• Overall noticeable improvement in water quality for local area
waterways and long-term adopted goals are being met.
• Program continues to be very effective in the removal of
pollutants to prevent them from entering area waterways and
has removed approximately 6100 cubic yards or 16M lbs (8000
tons) over the past five (5) years.
• This removal would equate to approximately 350 dump-truck
loads of heavily pullulated material removal that would have
otherwise been discharged to area waterways.

 

A

wul'tf-Summary –moving forward
• Much progress has been made in both the areas of stormwater
Quality and Quantity due to established priorities/commitments
and availability of funding from local, state and federal sources
(key).
• Continued aggressive efforts by the Mayor’s office and City
Council will provide both long and short term benefits to the
stormwater program and ensure future progress.
• Program is making a positive difference in the community with
less flooding impacts during routine/nominal rainfall events
(311).
• Numerous significant stormwater projects currently underway
including Davis Hwy. @ Carpenter Creek and Gaberonne
Swamp (final phase).
• More significant funding opportunities coming online with
stormwater projects being planned like Hollice T. Williams
Greenway Park and Sander’s Beach Community Center
locations.

 Discussion

A