Water Resources Civil Engineering Services


The discipline of Water Resources Engineering (Hydrology and Hydraulics) is fundamental to Civil Engineering itself. The vast majority of all Land Development improvements are dependent on the identification and mitigation of stormwater flows to protect lives, property, and infrastructure and prevent flood damage from storms. In recent years, the need for highly trained Water Resources engineers and specialists has become extremely evident, as local, regional, and federal agencies impose more stringent demands and requirements on development projects with respect to stormwater mitigation, flood protection, and water quality preservation. Subsequently, the need for comprehensive hydrology reports, floodplain studies, and water quality plans has become a reality for most development projects, regardless of size and scope.

JBA has remained cognizant of the correlation between Water Resources and the other facets of development and has continued to support and expand its Water Resources Department accordingly over the last few decades. We have long been recognized as a leading specialist in Water Resources Engineering, due to our portfolio of high-profile Water Resources projects, our in-house hydrology/hydraulics software development efforts, our relationships with various public agencies, the technical proficiency of our staff, and the overall quality of our work.

JBA has completed a multitude of Water Resources projects in Southern California. Our high-profile projects include the Meadowbrook Redevelopment Project, the original “H” Street Storm Drain in San Bernardino, the design of the Reche Canyon Channel in Colton, the design of the Verdemont Channel in San Bernardino, and a Drainage Master Plan for the City of Victorville.

JBA’s sister company, CivilDesign® Corporation, is an industry leader in the development of hydrology/hydraulics software applications. The Federal Emergency Management Agency (FEMA) and the counties of San Bernardino, Riverside, Orange, San Diego, Kern, and Los Angeles have all approved some or all of CivilDesign’s applications for Water Resources calculations. JBA uses CivilDesign® software as our primary application for hydrology and hydraulics calculations and continues to support CivilDesign’s long-term development efforts. In fact, some of our Water Resources engineers and specialists also play an active role in the development of our software.

Our Water Resources Department enjoys excellent professional relationships with public agencies throughout Southern California. These relationships help expedite our Water Resources projects and give us a higher level of efficiency than other firms in the area. Many of these agencies also utilize our hydrology/hydraulics software for their own projects; CivilDesign® generally provides this software, as well as technical support, at a reduced cost. We believe that by familiarizing local agencies with our software, we help to expedite our Water Resources projects with those agencies, ultimately saving our clients time and money. We are also extremely familiar with all agency requirements, standards, and recommendations with regard to Water Resources.

Primary Services

Storm Drain Facilities Design & Analysis

JBA has literally decades of extensive experience in the design and analysis of storm drain and flood control facilities, including pipe systems, culverts, improved and unimproved channels, detention/ retention/infiltration basins, percolation and spreading basins, debris basins, ponds, streams, dams, levees, and weirs.

Hydrology & Hydraulics Studies

The majority of development projects require the preparation of a Hydrology & Hydraulics Study. These studies are the backbone of the services provided by our Water Resources Department and involve the examination of existing hydrology conditions versus proposed or developed conditions to determine the correct sizing and implementation of storm drain facilities. JBA uses the hydrology and hydraulics software developed by our sister company, CivilDesign® Corporation, to perform the calculations necessary for these studies.

Drainage Master Plans

Large-scale developments may require the preparation of a comprehensive Drainage Master Plan (examples include Master Planned Communities, Specific Plan Areas, and cities requiring a new or revised Hydrology Study for all or a significant portion of the city itself). These Master Plans generally do not include the level of detail characteristic of a singular development, but rather provide the general calculations necessary to locate and design large-capacity channels, flood control basins, and other regional drainage facilities.

LOMRs, CLOMRs, & Floodplain Analyses

When a development is proposed within an identified floodplain, the Federal Emergency Management Agency (FEMA) often requires a Letter of Map Revision (LOMR) and/or Conditional Letter of Map Revision (CLOMR) for the project. These documents require a floodplain analysis to substantiate how proposed improvements will alter the delineation of the existing floodplain and subsequently protect the development from potentially catastrophic floodwaters.

Water Quality Management Plans (WQMPs)

The California State Water Resources Control Board (SWRCB) Santa Ana River Regional Office requires the majority of development projects within the Santa Ana River Watershed to prepare a Water Quality Management Plan (WQMP) that identifies and designs the post-construction Best Management Practices (BMPs) and associated Operations and Maintenance (O&M) activities for the project. These BMPs are designed to reduce the impact of the project’s stormwater runoff to the existing municipal storm drain system as well as treat the stormwater for pollutants prior to release from the site.

Storm Water Pollution Prevention Plans (SWPPPs)

While the WQMP addresses post-construction stormwater treatment and mitigation, the Storm Water Pollution and Protection Plan (SWPPP) addresses BMPs during the construction phase of a project. Almost all construction projects are required by the State of California to prepare an SWPPP as well as a Notice of Intent (NOI) to satisfy National Pollutant Discharge Elimination System (NPDES) requirements.


Client & Address
3105 East Guasti Road, Suite 100
Ontario, CA 91761
Ned A. Araujo, P.E.
Project Manager
909 / 390-8880
A.W. Properties West, LLC
16236 San Dieguito Road, Suite 3-10
Rancho Santa Fe, CA 92067
Earl Sterrett
858 / 756-7584
Proactive Engineering Consultants
1875 California Avenue
Corona, CA 92881
Robert Brown, P.E.
951 / 280-3303
Moser Ventures, Inc.
1012 2nd Street, Suite 100
Encinitas, CA 92024
Dennis Moser
760 / 479-1820
Lilburn Corporation
1905 Business Center Drive
San Bernardino, CA 92408
Cheryl A. Tubbs
Vice President of Operations
909 / 890-1818


Project Location
Drainage Analysis & Design for
Construction of an 82" R.C.P.
Colton, CA
Design of "H" Street Storm Drain
(11' x 9' Concrete Box Culvert)
San Bernardino, CA
Design/Construction Management for
10' Reinforced Concrete Box Culvert
Orange Show Fairgrounds,
San Bernardino, CA
Meadow Brook Redevelopment Project
Drainage Study & Hydraulics Design
San Bernardino, CA
Hydrology/Hydraulics Study & Design of
25'-Wide Reche Canyon Channel
Colton, CA
Metropolitan Water District (MWD)
Pilot Recharge Basins Design
Cadiz, CA
Conspan Culvert Project
Hydrology Study & Culvert Design
Indio, CA
Elliptical Concrete Pipe Design & Hydrology/Hydraulics Study
Norco, CA
Hydrology Study, LOMR & Protection Measures for City Creek Channel
Highland, CA
Retention Basin, Trapezoidal Channel,
& Transition Structures
Desert Hot Springs, CA
Hydrology/Hydraulics Study &
Engineering Design of Verdemont Channel
San Bernardino, CA
Scour Analysis & Hydrology/Hydraulics Study
North Bank of Mill Creek Channel
San Bernardino, CA
Scour Analysis & Slope Protection
Plunge Creek Channel
Highland, CA
Scour Analysis & Erosion Protection
Santa Ana River Channel
Colton, CA
Emergency Basin
Protective Measures & Repair
San Bernardino County, CA
Timber Creek Channel Improvements/Protection
San Bernardino, CA
Arbor Ridge Master Plan
Hydrology Study & Drainage Analysis
Beaumont, CA
Arbor Ridge Water Quality
Management Master Plan
Beaumont, CA
Victor Valley Developers Association (VVDA) Drainage Master Plan
Victorville, CA
Annexation Area Preliminary Hydrology Study
Victorville, CA
Rancho Los Lagos Water Quality Management Master Plan
Imperial County, CA
Hydrology/Hydraulics Study & Basins
Design for Proposed Quarry
Los Angeles County, CA
Tract 31689 Floodplain Analysis, Channel Design, & CLOMR
Indio, CA
Tracts 30539 & 30540 Floodplain Analysis
Basins Design, & CLOMR
Desert Hot Springs, CA
Sheep Creek Dam Hydraulic Analysis
Bishop, CA
Prado Regional Park Dam Hydraulic Analysis
Chino, CA
Lake Norconian Inspection & Dam Break Analysis
Norco, CA
Whitewater Dam Break Analysis
Coachella Valley, CA
City of Highland Landscape Ponds Design
Highland, CA
City of Ventura Landscape Pond & Stream Design
Ventura, CA
Evaporation Pond Design
Baker, CA
Percolation Pond Design
Big Bear Lake, CA