Microtunneling Bradshaw Company Maryland TUNNELING SPECIALISTS SINCE 1963      
 

       SORT BY                 PROJECT NUMBER      |      LOCATION    

  498 - Lafayette Street Pedestrian Tunnel

PROJECT TYPE

SUB TYPE

LOCATION

OWNER

GEOLOGY

DIMENSIONS
Hand Tunneling Steel/Wood Tallahassee, FL FDOT Soft Ground 57' x 144 " Ø
SUMMARY: Bradshaw Construction built a 57' long hand mine liner plate tunnel for Florida State University to prevent pedestrian overflow onto Lafayette Street after FSU football games. Bradshaw has a long history of building liner plate tunnels; what made this project unique was the active railroad tracks only 6.5' overhead. Trains traveled over the tunnel many times per day during construction. Carrier... Complete Project Profile

  471 - Suwanee Pedestrian Tunnel

PROJECT TYPE

SUB TYPE

LOCATION

OWNER

GEOLOGY

DIMENSIONS
Hand Tunneling Steel/Wood Suwanee, GA City of Suwanee Soft Ground 62' x 156 " Ø
SUMMARY: Bradshaw Construction installed 62' of 156" steel liner plate tunnel by conventional hand mine methods through a railroad embankment for a pedestrian tunnel. Hand mine techniques were utilized to install the liner plate tunnel under an active Norfolk Southern Railroad with only 7' of cover. Mining took six days to complete, working around the clock. After completion of the excavation, a shotcrete... Complete Project Profile

  443 - Route 262 CSX Crossing

PROJECT TYPE

SUB TYPE

LOCATION

OWNER

GEOLOGY

DIMENSIONS
Hand Tunneling Steel/Wood Staunton, VA VDOT Boulder Fill 75' x 120" Ø
SUMMARY: Bradshaw Construction installed a 10'Ø Hand Mined Liner Plate tunnel under CSX Railroad in Staunton, Virginia. The tunnel was excavated from a portal through Boulder Fill in the embankment of the railroad. Due to the voids in the fill, a cementitious grout curtain was pumped over the tunnel alignment before mining. In order to mitigate the risks settlement and the danger of mining through... Complete Project Profile