Designing, constructing and maintaining Oklahoma’s growing number of roads and bridges is why Cobb Engineering Company was established back in 1921. Today, with four strategically-located offices all over the state, CEC is more committed than ever before to providing expert Transportation services anywhere in Oklahoma.
Offering a full complement of roadway and bridge design services, the Cobb Engineering Transportation Division has a proven record of providing top quality work while consistently delivering projects on-time and on-budget.
Transportation Design
Cobb provides capable, highly experienced design professionals who are well versed in the latest highway and street design criteria and practices for transportation projects including —
- State System
- Highways, Interstates and Turnpikes
- New Alignments, Reconstruction, and Rehabilitation
- Rural
- Urban
- Local System
- City Streets & Bridges
- County Roads & Bridges
- Utility Relocations
- Right-of-Way Mapping and Acquisition
Transportation Planning
In addition to providing design services for signalized intersections for every traffic scenario, Cobb Engineering also excels in highly accurate traffic studies and functional analysis of traffic systems. Planning services include —
- Data Collection and Scoping
- Engineering Studies
- Environmental Clearance Documents
Bridges
A key element for any transportation system is its bridges. Cobb’s structural team provides a veriety of services pertaining to our bridge infrastructure. These services include:
Bridge Inspections
- Off-System and On-System
- Truss Bridges
- Fracture Critical
- Underwater
Bridge Rehabilitation
- Widening
- Superstructure Repair or Replacement
- Substructure Repairs
- Scour Repairs
New Structures
- Concrete slab on steel beams
- Concrete slab on prestressed beams
- Reinforced concrete box girders
- Prestressed concrete box girders
- Retaining walls
- Reinforced concrete box culverts
- Temporary shoring
Traffic Engineering
Proper planning is key to the success of any city. It has a significant impact on its economic development and the quality of life of its residents. An efficient traffic system plays a major role in city planning and reduces the stress of its users. Cobb Engineering Company (CEC) understands the complex dynamics associated with traffic engineering, and most importantly the need for timely travel and proper access avenues. CEC is fully-equipped to address all aspects of planning and design. We offer practical, thoughtful and budget friendly solutions that serve both the municipality and its people.
Field Data Collection
- 24 hour traffic volume counts
- Intersection turning movement counts
- On-site observation of traffic operation
- Modeling with Synchro and SimTraffic
Traffic Impact Studies
- Traffic Impact Analyses for future developments
- Signal warrants analysis
- Analyzing the suitability of existing facilities for projected traffic
- Signal optimization studies
- Parking lot layouts
Intersection Design
- Traffic signal design and configuration
- Coordinated traffic signals
- ADA compliant pedestrian signals and crosswalks.
- Temporary signal design


