Crowder constructed its first bridge project in North Carolina in 1953. Since then, our project portfolio has expanded to include a multitude of bridge projects throughout the Southeast. Our experience not only encompasses bridge construction, but also bridge design, repair and replacement.
Varying materials, shapes and methods are used in bridge design depending on many variables-- the distance that needs to be crossed, the type of traffic, and any environmental elements. No two bridges are alike and many are combinations of different types. Crowder has built pedestrian, vehicle and railroad traffic bridges in all kinds of terrain and locations.
Crowder removed an existing, flood-damaged bridge over Norfolk Southern Rail Road track, and replaced with a new structure in this Emergency Design Build Project. Because of time constraints, our team designed and constructed a bottomless culvert. The new foundations consisted of driven 18” pipe pile to depths up to 62 feet; Heavy footings were installed for the end bents and wing walls. Because of the tight working area shoring was installed to complete the excavation on both sides of the new structure. Once all the concrete walls were poured we installed 18 precast arches over Norfolk Southern railroad. The entire structure was back filled with stone and the new roadway installed over the arches.
12.2 miles of Railroad construction including clearing and grubbing, excavation and grade work, jack and bore piping, concrete structures, three bridge
replacements, arch culvert construction, asphalt placement, intersection modification work, fencing, erosion control, signal and communication work,
track bed installation and seeding and mulching. Ultimately, the project will widen 10.2 miles of track bed for NCDOT/ NCRR.
The project is a multi-bridge A+B project. Crowder is in the process of replacing the 860-foot, SC-7 bridge at Cosgrove Avenue in North Charleston,
which is the second bridge in this project. This bridge is 72 feet wide and contains 20 drilled shafts; each are 100 feet long. It also includes
42-inch diameter stone columns at each approach, along with earthquake drains, and HP14x73 pile at each end bent. This bridge spans Meeting Street,
existing CSX and Norfolk Southern railroad tracks and an active concrete plant. Also included in this project grading, MSE walls, stone
columns, earthquake drains, paving, fence and electrical.
The completed US-78 bridge at Rivers Avenue is 1,200 feet long, 44 feet wide, with an S-curved shape. It contains 13 drilled shafts, two of which are 175 feet long, as well as 36-inch diameter stone columns at each approach and a 24-inch pile at each end bent. Demolition of this bridge was completed over Meeting Street and multiple existing CSX and Norfolk Southern railroad tracks. . The concrete portion also includes two large crash walls to protect the bridge foundation from derailed trains.
The project has been constructed to span multiple future tracks in addition to the existing tracks going into the Charleston Port.
This project replaced the bridge on US Highway 76 and included demolition of a 100-year-old abandoned steel truss bridge over the Chattooga River. The Chattooga River is part of the National Wild and Scenic Rivers System and forms the boundary between South Carolina and Georgia. Demolition of the existing bridge had to be coordinated around the U.S. Forest Service (USFS) water monitoring gauge, located on an existing pier of the old bridge. Daily work schedules had to be coordinated with USFS, SCDOT, DHEC and representatives of the Chattahoochee (GA) and Sumter (SC) National Forests. Crowder received the 2007 Pinnacle Award for Best Highway-Heavy Project for their work on this project.
Crowder installed a 60-foot section of cast-in-place pedestrian tunnel under a section of Norfolk Southern Railroad in Elon, North Carolina. The access on each side of the tunnel was constructed with a ramp and a stair set, each having opposing entrances, providing four (4) entrances to the tunnel. The tunnel allows students of Elon University to walk to school on the north side of the track from student housing located south of the track without crossing this dangerous section of high speed railroad.
Crowder is responsible for the design, construction and management of the replacement of fifteen low impact bridges. The bridges are located in Ashe (two (2)), Avery (four (4)), Caldwell (one (1)), Watauga (two (2)), and Wilkes (six (6)) Counties and range in length from 35 feet to 125 feet, with average bridge length at 60 feet. The project includes: Design Services, Construction Services, Permits, Utility Coordination, Right of Way acquisition, Construction Engineering & Inspection and were completed in a little over three years.
After being shortlisted, and submitting a design-build bid to NCDOT, Crowder was awarded the design, construction and management of the replacement of nine (9) bridges. located in in Davidson (four (4)), Forsyth (one (1), Rowan (three (3)) and Stokes Counties (one (1)). Project has included: Design Services, Construction Services, Permitting, Utility Coordination, Right of Way Acquisition, as well as Construction Engineering & Inspection. These low-impact bridges range in length from 70 to 410 feet, with the average bridge length at 175 feet and have been designed and constructed in a little over 3 years.
Crowder constructed a mile long recreational nature trail and two pedestrian bridges - including: channel improvements, snag and debris removal, training walls, slope protection, and utility, road and building relocations and landscaping to reduce flood hazards, damages, and associated negative social and economic impacts. Crowder Installed Two, steel-truss pedestrian bridges over the Roanoke River. One structure was a two-span bridge over 250 feet long and the other a single span bridge over 217 feet long. The trail consisted of over a mile of paved walking surface with landscaping including wooden and wrought iron fencing. To prevent water from backing up behind the trail embankment as well as to improve drainage, 24 inch concrete pipe and 5 foot diameter manholes, with associated headwalls, and slope ditches were installed leading water back into the Roanoke River.
This project helped provide beautification to a somewhat depressed area in the old industrial area of Roanoke.
This almost 900 foot long bridge replaced a 50 year old structure that had seen better days. The work consisted of two large MSE wall abutments,
34 drilled shafts and a combination of 72’’ bulb tee and 60’’ continuous steel girders. Over 1000’ of roadway approach work including curb and gutter
and sidewalks created a pedestrian friendly facility. This work took place over two active roadways as well as two active CSXT railroad tracks.