Mansoor Ahsan

Mansoor Ahsan, P.E. is an American-based Civil and Structural engineer known for specializing in Bridge, Railroad and Roadway design and construction. He is the Chief Executive Officer of Bridgefarmer & Associates, Inc.

Early life and education

Mansoor holds a Master's degree in Structural Engineering from Bradley University, Peoria, Illinois.

Career

Mansoor Ahsan has decades of structural design and construction experience in the transportation industry. He is known for the construction of steel and concrete bridges, including repairs, replacement and preparation of PS&E.

Mansoor is a registered professional engineer in over twenty American states. He is responsible for the management and design of high profile transportation projects, such as the DART orange line, the IH-635/LBJ Managed Lanes in Dallas, TX., SH 130 in Austin and the DFW connector in Ft. Worth, TX.

Mansoor has held executive positions at ENR Top 100 Engineering Firms. In 2002, he was appointed the Chief Executive Officer of Bridgefarmer & Associates, Inc. He is a regular speaker at national and international bridge engineering conferences and ASCE meetings. He is a regular guest speaker at University of Texas and other institutes. He is also a contributing writer for numerous bridge journals.

Awards

  • Roads and Bridges magazine Top 10 Roads & Bridges award 2017
  • Arkansas ACEC Grand Conceptor Award 2017
  • Arkansas ACEC Engineering Excellence Award 2017
  • Dallas Build Expo Proclamation Award 2014
  • Texas ACEC Silver Award 2009, 2015
  • Texas ACEC Gold Award 2000, 2008, 2014, 2016
  • National ACEC Engineering Excellence Award 2000, 2007, 2008, 2014

Recent Works

  • IH-635/LBJ Freeway
  • Chisholm Trail Parkway
  • Loop 12 / SH 114Interchange, TxDOT; Irving, TX
  • I-630 Widening in Little Rock AR
  • Orange Line Expansion Design-Build, DART; Dallas, TX
  • DFW Connector Design-Build, TxDOT; Dallas, TX
  • I-40 Crosstown Urban Expressway Relocation,ODOT; Oklahoma City, OK
  • Emergency Replacement of Bridge 60.97, UPRR; Goodrich, TX

Projects

Date

Project

Location

Description

2015 to 2017

Bridge BE

ODOT; Oklahoma City, OK

This bridge project is the final segment of the I-40 Crosstown Expressway in Oklahoma City. It goes over Boulevard Avenue in a very urban area, and connects to the Amtrak station in downtown. The bridge, constructed out of tiebacks, drilled shaft walls and columns, was very complex as a structure alone. Keeping the tracks in operation was priority since there were 4 sets of tracks: 2 sets of tracks for BNSF, 1 set for UPRR / Amtrak, and 1 set designed for future rail transportation as part of the I-40 corridor expansion.

2012 to 2016

I-630 Widening

Little Rock, AR

Design for the proposed I-630 corridor improvements consisting of the widening of interstate roadway from six to eight lanes to the inside, and reconfiguration of a major interchange.

2010 to 2015

IH-635 Managed Lanes

TxDOT; Dallas, TX

This section along IH-635includes 8 general purpose lanes, 6 managed lanes, and 4 to 6 lane continuous frontage roads. The section along IH-35E includes 2 managed lanes in each direction adjacent to the existing 10 general purpose lanes.

2010 to 2013

Memorial Drive

City of The Colony & Denton County, TX

Extension of Memorial Drive on new location. It included a grade separation beneath the existing BNSF railroad between cut type retaining walls, a new intersection at Town & Country Boulevard and realignment of the boulevard.

2010 to 2013

DFW Connector Design-Build

TxDOT; Dallas, TX

Project principal for this Tarrant County project. The improvements doubled the capacity of SH114 and SH121 with an ultimate configuration of up to 14 main lanes and 4 managed toll lanes.

2009 to 2012

Loop 12 / SH 114 Interchange

TxDOT; Irving, TX

Lead Quality Assurance/Quality Control Engineer for all structures associated with preparing the preliminary and final PS&E plans for the Loop 12/SH 114multi-level interchange, and all associated frontage roads, highways and Dallas Area Rapid Transit (DART) light rail civil work.

2009 to 2012

Orange Line Expansion Design-Build

DART; Dallas, TX

Lead structure and construction coordinator on this project which consists of 9 miles of rail line beginning at Northwest Highway leading to the DFW Airport, running parallel to SH 114.

2007 to 2009

SH 130 Tollway Design-Build

TxDOT; Austin, TX

Design quality assurance manager for the design of 96 miles of a controlled access tollway and served as an integral part of the overall development process for the project.

2004 to 2009

I-40 Crosstown Urban Expressway Relocation

ODOT; Oklahoma City, OK

Preparation of final engineering for relocation of Union Pacific Railroad / BNSF tracks.

2003 to 2008

IH 35E Improvements

TxDOT; Ellis County,TX

Design for reconstruction of 10.3 miles of IH 35E. The project consisted of preparation of PS&E, for reconstructing the existing highway to a 4-lane controlled access freeway facility and included provisions for future expansion to 6 lanes.

2001 to 2003

Bridge 60.97

UPRR; Goodrich, TX

Designed and provided construction oversight for this ACEC “Excellence in Engineering” winning project for emergency repair to a UPRR Bridge over the Trinity River near Lufkin.

2001 to 2003

Walnut Creek Mining Bridge, Walnut Creek Mining Company

Bremond, TX

A 300-foot mining truck bridge near the Calvert Mine in Bremond. The bridge structure included six 50-foot spans with AASHTO Type IV girders designed to carry vehicles ten times heavier than typical AASHTO traffic loads. A 12-inch deck and 18 inches of ballast were used to distribute the live loads to the girders.

1996 to 2001

Northeast Line Section

DART; Dallas, TX

Task Lead and QA/QC Manager for the design of bridges on line section G1, G2 and G3. Project starting at Mockingbird station to downtown Garland. Line Section G-1 of the project included approximately 16,600 LF of double track line, Skillman Street Bridge (2-span bridge, 144-feet-long), Abrams Road Bridge (2-span bridge, 160-feet-long), Union Pacific Rail Road Bridge (single span, 30-feet-long), and Northwest Highway Bridge (2-span, 160-feet-long).

1996 to 2001

Northeast Line- Section G-2

DART; Dallas, TX

This project at White Rock Creekincluded approximately 18,600 LF of double track line, from White Rock Creek Station to LBJ Station. The aerial structures for the light rail transit line include White Rock CreekBridge (54 spans of direct fixation track, 4,695 feet in length), Church Road Bridge (single span, ballasted deck bridge, 80-feet-long), and the LBJ Freeway Overpass, (3-span, continuous steel through-plate girder bridge with ballasted deck, 451 feet in length).

1996 to 2001

NortheastLineSection G-3

DART; Dallas, TX

This project included approximately 24,200 LF of double track line. The project limits were from north of LBJ Station to north of Garland Central Station. The aerial structures include the Jupiter Road Bridge, with 9 spans and an overall length of 815 feet on a direct fixation track. The Forest Lane Bridge includes 9 spans and is 1000-feet-long. The Duck Creek Bridge includes 9 spans and is 750 feet in length. Overpass structures have single column piers; the Duck Creek Bridge includes 2 column bents.

1996 to 2001

Historic Pickett Bridge on Whatcom Creek

Bellingham, WA

Plan preparation for the repairs and rehabilitation of Pickett Bridge. This concrete arch structure was built in 1927and is considered a distinctive landmark feature along the Whatcom Creek watershed and trail system. The repair and rehabilitation of this 110-foot-long, 48-foot-wide structure included analysis and design for the HS-25 truck loading, removal of the fill over Luten arch, installing reinforced concrete slab and the connections of the new supports to the existing footing of the arch without changing the historic architectural features of this bridge.

1996 to 2001

Crossing over Skagit River

Mt. Vernon, WA

Principal Engineer and Project Manager for the design and construction of an 840-foot-long structure using PT95MG super girders, field spliced supported on 10-foot diameter, using 100-foot-long drilled shafts. This first of its kind 5-span bridge was constructed in two construction seasons.

1996 to 2001

Burns Avenue, 2nd Avenue & Michigan Avenue

Detroit, MI

Project Manager for this design-build project carrying Burns Avenue, 2nd Avenue, and Michigan Avenue over I-75 in Wayne County, Michigan.The project included the rehabilitation of the existing substructure and replacement of the superstructure.

1996 to 2001

Pacific Avenue at Grade over the BNSF

Everett, WA

Bridge Engineer for the design and construction of a 750-foot-long, post-tension tub sectioned (“T”) structure. It was designed so that direct access to the Everett Station could be provided from the new bridge.

1987 to 1995

Madison Avenue

Madison County, IL

Design of bridge over Madison Avenue, using 75-inch pre-stressed, precast concrete bulb T-beams for a three-span structure with a 200-foot center span.

1987 to 1995

Ravenwood Bridge

METRA; Chicago, IL

Designed a 95-foot-long, single-span through steel plate girder with 5/8-inch ballast pan supported on 42-inch diameter drilled shafts.

1987 to 1995

Carr Street to Washington Street, Terminal Railroad Association

St. Louis, MO

Design Engineer for a 2,000-foot railroad structure for Cooper E-80 loading in a seismic sensitive zone, AASHTO Category B and C. The substructure was modified for aesthetic design and was supported on 42-inch diameter drilled shafts.

1987 to 1995

Northwest Line

Chicago METRA; Cook County, IL

Design Engineer for several railroad structures designed for Cooper E-80 loadings, for Chicago Metropolitan Rail (METRA) Northwest line.

1987 to 1995

Shoofly & Permanent Structure, Atchison, Topeka & Santa Fe Railroad

Warren County, IL

Design Engineer for the 1,800-foot-long structure over US 67 in District 4 for the Illinois Department of Transportation, carrying E-100 loading for the Atchison, Topeka and Santa Fe Railroad.

1987 to 1995

Smithville Road Reconstruction

Peoria, IL - IDOT

Resident Engineer for the construction of a 6-mile, 4-lane road with open ditches.

1987 to 1995

Township Road 76N Construction

Glassford, IL-IDOT

Resident Engineer for the construction of a 2-lane asphalt paved road on new location.

1987 to 1995

Dogtown Land Road Reconstruction

Glassford, IL-IDOT

Resident Engineer for the construction of a 200-foot, 3-span box beam bridge over a creek, plus one mile of 2-lane roadway consisting of asphalt pavement and open ditches.

1987 to 1995

52 Bridges

Florida Department of Transportation (FDOT) District 2; Lake City, FL

Project Manager for the structural stability of 52 bridges & for over 100 scour critical bridges in District 2 of the Florida Department of Transportation.

1987 to 1995

FAP 302 Bridge

Adams County, IL

Designed a three-span dual structure on a curved alignment. It consisted of 72-inch pre-stressed precast concrete bulb T-beams supported on hammerhead piers.

See also

  • Interstate 635 (Texas)
  • Orange Line (Dallas Area Rapid Transit)
  • Texas State Highway 130