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Historically known as a
Civil Design Firm, Pyburn & Odom MCA had its early
beginnings in the pipeline and water crossings specialty
area. Logical
extensions of these services were the entry into
industrial site selection development, and marine
and structural design.
PIPELINES AND WATER CROSSINGS
Pyburn & Odom MCA is a leading expert in every phase of
addressing pipeline alignment, profiles, and earthwork,
particularly in the physical, environmental, and
permitting aspects of crossing water bodies.
Pyburn & Odom MCA is familiar with the
problems of potomology and river hydraulics, as well as
bank stability and erosion control. The company's basic capabilities include not only
highly experienced engineering design knowledge, but
some of the most sophisticated equipment available
anywhere for pipeline alignment, depth-of-cover surveys,
cross-country pipeline routes, and hydrographic surveys
including Global Positioning System (GPS). |
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Pyburn & Odom MCA's working relationship with
the U.S. Army Corps of Engineers has provided an
excellent capability in expediting the permitting
process and negotiating on the client's behalf on water
and environmentally related issues.
Pyburn
& Odom MCA's origin began with the design of
pipeline river, lake, and marsh crossings and remedial
works. In
its 53 years of existence the company has designed
hundreds of pipeline facilities throughout the United
States onshore and offshore. Pyburn & Odom MCA primarily has used its own
personnel for every phase of the work. In those rare instances where the clients’
needs are outside of the company's in-house
capabilities, a network of experts is available as an
outside resource to develop the best solution with the
maximum quality control.
With the acquisition of MCA, the firm
now has the capability to investigate & design
System Control and Diagnostic Analysis projects (SCADA)
for compression & pumping facilities.
OUTFALL PIPELINES AND
SIPHONS
Pyburn
& Odom MCA has completed hundreds of projects
involving the Mississippi River from St. Paul, MN to the
mouth of the river. Most prominent and relevant to these are numerous large
diameter pipe gravity flow (siphon) and pumped outfall
systems transporting wastewater from facilities over the
levee and into the river. These included combinations of forced pumped and gravity flow
systems. Additionally,
Pyburn & Odom MCA, as a leader in dock facility
design on the river, has designed numerous dock
facilities complete with outfalls and pumped intake
systems.
HYDROLOGIC AND HYDRAULIC DESIGN
Pyburn
& Odom MCA has years of experience in the evaluation
of water resource projects including surface hydrology,
groundwater, hydraulic engineering, sediment and rivers,
drainage, erosion control structures, water supply
reservoirs, and storm water and wastewater collection
and disposal. Pyburn
& Odom MCA has conducted numerous studies of
potential flooding scenarios as well as evaluating
historic floods including flood insurance studies for
the FEMA, floodplain analyses for the U.S. Army Corps of
Engineers, and ground floor seepage flooding resulting
from groundwater flow during high stages on the
Mississippi River. River stage and sediment transport studies were
conducted in association with the installation of
pipeline river crossings on the Mississippi River and
other rivers. Additionally,
hydrologic and hydraulic design services were furnished
for approximately 150 erosion control drop in-let
structures as part of a basin-wide erosion control
project in the Yazoo River Basin for the U.S. Army Corps
of Engineers. Floodwater
retarding dams (in excess of 1000 feet in length) serve
to reduce erosion at various locations along larger
streams by retarding flood flows, thus allowing sediment
loads to drop from the flood waters. Pyburn & Odom MCA designed two such dams in
the Yazoo River Basin for the U.S. Army Corps of
Engineers as part of a Federal demonstration erosion
control project. The
firm also has designed or evaluated dozens of drainage
structures associated with highways, roads, and streets;
flood control channels; groundwater interception
systems; etc. Water
supply and wastewater collection and disposal pipelines
are an integral, although hidden, part of the nation's
infrastructure. Pyburn
& Odom MCA recently designed wastewater outfall
pipelines for East Baton Rouge Parish as part of a
parish-wide system upgrade mandated by EPA. These facilities included multiple large diameter
prestressed concrete and ductile iron pipe with
associated hydraulic control structures discharging into
the Mississippi River.
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RESERVOIR AND DAM DESIGN Pyburn
& Odom MCA has designed water supply and flood
control dams for industrial and governmental
clients. The design of water supply and flood control
reservoirs and dams require a multi-disciplined approach
including the evaluation of geotechnical, hydrologic,
structural, hydraulic, construction, and economic
factors. Our
experience includes the design and construction
supervision of industrial water supply dams and
reservoirs for the paper processing industry. An
example is a 1500 ft. earthen dam in Southern
Arkansas. |
Additionally, Pyburn & Odom MCA has designed
floodwater retarding structures (including dams in
excess of 1000 feet in length) for the Vicksburg
District Corps of Engineers as part of the Yazoo River
Basin Demonstration Erosion Control Project. These structures serve to reduce erosion at
various locations along larger streams by retarding
flood flows, thus allowing sediment loads to drop from
the floodwaters.
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INDUSTRIAL SITE SELECTION Industrial
site selection along water bodies such as the
Mississippi River normally include an evaluation of many
factors such as water supply and quality, wastewater
discharge, site topography, waterfront hydrography, bank
building/caving, bottom scour/fill, current velocities,
sedimentation, navigability, suitability of marine
structures, utility water crossings, levees, property
surveys, permits, and environmental assessments. |
Pyburn
& Odom MCA provides a wide range of these services
to assist in industrial site selection along water
bodies. Typical
services include land, property, right-of-way, and water
surveys; hydrologic/hydraulic studies of flooding and
drainage; studies of river stage, discharge, velocity,
scour/fill, bank stability, meander, sediment transport,
and navigable channels; barge/ship docks; outfall
pipelines; pipeline utility crossings; water supply
intakes, regulatory permits; and environmental
assessments. For
any project, services can include feasibility studies,
field investigations, engineering data collection,
engineering reports, cost estimates, preliminary/final
design, plans and specifications, bidding documents,
assistance during bidding and contract award,
construction layout and inspection, construction
contract administration, project closeout, and
coordination of supporting engineering and other
disciplines.
POTOMOLOGY STUDIES
Potomology
involves an examination of the processes of rivers and
streams for application to problems involving waterways
engineering. Characteristics
such as meander pattern, sediment transport, bank caving
and building, bottom scour and fill, bank stability,
stage, discharge, flooding, and navigability constitute
important factors of any project related to flood
control measures, navigation channels, discharge
pipelines, utility water crossings, water supply,
waterfront structures, and industrial sites.
Pyburn
& Odom MCA has conducted numerous potomological
studies in connection with pipeline river crossings,
barge and ship docks, wastewater discharge lines, water
supply structures, topographic and hydrographic surveys
of water bodies, levees, drainage structures, dredging
for navigation channels, and riparian boundary disputes.
SITE DEVELOPMENT
Site
development has long been an integral part of Pyburn
& Odom MCA’s capabilities. The initial surveying, laying out of grid
systems, providing for drainage, roads, and permitting
services have been done on many major industrial and
commercial projects, most located primarily on the
Mississippi River.
FOUNDATION DESIGN
Pyburn
& Odom MCA provides design of pile supported and
spread footing foundations. Our foundation designs are typically applied to
low compressive strength bearing soils found in river
deltas and embankments. Our designs range from conventional driven pile
foundations in river locations through shaft-drilled
foundations at vibration critical construction sites and
simple spread footings. Our designs have been applied to wharves and
docks, multiple story buildings, industrial buildings,
and machinery placement.
An
example of a recent foundation project is the France
Road Flood Wall project which included eight (8) gates,
T-walls, and I-walls. The project was performed for the Port of New Orleans, where
the soil conditions along the 8478 ft. wall, along the
New Orleans Industrial Canal, had significant variations
due to prior filling and dredging in the area and
proximity of the wall to unstable soils. This project required the addition of cut-off
sheet pile walls in conjunction with the structure
supporting piles in order to prevent water seepage
through the sub-soils.
STRUCTURAL DESIGN
During
our 50-year plus history, Pyburn & Odom MCA has
completed hundreds of design projects which required
detailed structural design and analysis. A typical project recently completed for the LA
DOTD was the “Fractive Critical Analysis Study”
involving State Bridges and their structural
members. Another example was the recently constructed
Transit Shed No. 3, for the Greater Baton Rouge
Port. This structure is located in the Mississippi
River and required deep-drilled shafts with bell
footings and steel support structures for support of
concrete slabs designed for loads in excess of 800
lb/sq. ft. live loading. |
