Multi-Phase Project: Phase
Prettyboy Dam
The Prettyboy Dam project involved the installation of an underwater anchorage system necessary to secure the concrete gatehouse to the dam.
location
Parkton
,
Maryland
ESTIMATED VALUE
$6M
owner
City of Baltimore, Department of Public Works
Completion date
04/2010
general contractor
Brayman Construction Corporation
Market
Locks & Dams
Multi-Phase Project: Phase
Prettyboy Dam
Brayman developed a variety of specialized techniques and innovative equipment modifications to complete the underwater installation of an anchorage system at Prettyboy Dam. Based on consultations with many international experts in anchoring and dam rehabilitation, this uniquely complex project appears to be the first of its type in the world with respect to the underwater processes, the depth of dive, and the length of the post-tensioned anchors.
Work required underwater drilling, installation, and stressing of 38 bar anchors and 12 mid-width holes through the face of the dam in depths up to 110-feet. The bar anchors ranged in length from 50-feet to 70-feet. The 5.5″ diameter drill holes were core drilled, water tested and redrilled before installation of the anchors. As part of the bar anchor work, Brayman also installed 6 precast concrete cross-beams and steel brackets (wales for anchors). All underwater work was supported utilizing a certified diving subcontractor working from a barge platform. Other miscellaneous work included spall repairs, crack repairs and epoxy injection along the interior walls of the existing gatehouse.
No items found.
No items found.
OUR PROJECTS
Related Projects
Multi-Phase Project
Chickamauga Lock Monolith M48 Anchors
Project consists of 60,000 CY of rock excavation, 65,000 CY common excavation, over 100,000 CY embankment material, 90,000 CY of mass concrete and over 1,150 high capacity dam anchors. It will also include a grout curtain and reconstruction of the left and right river banks.
Multi-Phase Project: Phase
5
Bluestone Dam
Project consists of 60,000 CY of rock excavation, 65,000 CY common excavation, over 100,000 CY embankment material, 90,000 CY of mass concrete and over 1,150 high capacity dam anchors. It will also include a grout curtain and reconstruction of the left and right river banks.
Multi-Phase Project: Phase
5 Cofferdam
Bluestone Dam
A sheet pile cofferdam was installed down the center of the existing stilling basin to divide the spillway in half in preparation for the Phase 5 Spillway Reconstruction Project.
Multi-Phase Project: Phase
3
Bluestone Dam
Brayman was contracted to provide specialty construction services in support of the Dam Safety Assurance (DSA) Phase 3 Project at Bluestone Dam.
Multi-Phase Project: Phase
2A
Iron Mountain Boyers
Brayman’s scope of work included installation of 11-each large diameter shafts, up to 240-feet deep and 42-inch diameter, which will be used for various utilities.
Multi-Phase Project: Phase
1 & 2
Dover Dam
Post tension anchors, spillway access platforms, underwater anchors, increased dam height via post tensioned pre-cast panels, 2 mile access road, shoring, caissons, soil nail wall, this job had it all.
Multi-Phase Project: Phase
2B
Bluestone Dam
This project involved the installation of 212 high capacity rock anchors, ranging from six to 61 strands, to upgrade the stability of the existing dam.
Multi-Phase Project: Phase
Penn Tunnel Fire Protection / 7th Ave Waterline
Multi-Phase Project: Phase
Holtwood Boat Barrier
Brayman was contracted to install underwater anchors to hold a new half mile long boat barrier.
Multi-Phase Project: Phase
Chickamauga Lock Monolith M48 Anchors
Brayman Construction was contracted to install five, 61-strand, restressable anchors to drill depths up to 195 feet in a monolith of the lock chamber at Chickamauga Lock and Dam in Chattanooga, TN.
Multi-Phase Project: Phase
Ripken Stadium Structural Repair
Installation of 21 micropiles through the existing footer and 24 tiebacks through the existing wall. The micropiles and tiebacks will be tied together with a new retaining wall poured in front of the existing retaining wall.
Multi-Phase Project: Phase
North Fork Spillway Soil Nail Wall
Brayman was subcontracted to install a 5719 SF soil nail wall as part of a spillway expansion project at the North Fork Dam near Black Mountain, NC. Both soil nails and tieback anchors were installed on this wall which served as a slope stabilization measure for construction of a permanent access road on the site.
Multi-Phase Project: Phase
PTC Sheet Pile MP 39.62 - 44.04
Brayman was subcontracted to provide specialty geotechnical construction services in support of a roadway and bridge reconstruction project located between milepost 39.62 and milepost 44.04 along the Pennsylvania Turnpike in Allegheny County, PA.
Multi-Phase Project: Phase
Prettyboy Dam
The Prettyboy Dam project involved the installation of an underwater anchorage system necessary to secure the concrete gatehouse to the dam.
Multi-Phase Project: Phase
VDOT L55
This project consists of four and one-half feet drilled Shafts at the abutments and six and one-half feet drilled shafts at the river piers.
Multi-Phase Project: Phase
Bagnell Dam Stabilization
The dam received a structure upgrade in 2018, which included over 16,000-cy of mass concrete, 68-ea high capacity dam anchors, and 175-ea drains.
Multi-Phase Project: Phase
Lake Scranton Dam
Twenty-three post tensioned dam anchors were installed to upgrade capacity of the dam while working around multiple other sub-contractors in very tight access.
Multi-Phase Project: Phase
Charleroi Locks & Dam - River Chamber Completion
The modernization effort at this site will ultimately result in the construction of two new 84-feet wide by 720-feet long chambers to replace the existing 56-feet wide lock currently in operation.
Multi-Phase Project: Phase
ALCOSAN Diversion Structure
The Allegheny County Sewer Authority awarded Brayman the emergency procurement contract to repair and replace the A-34 Diversion Structure located along the Allegheny River in the Lawrenceville neighborhood of Pittsburgh, PA.
Multi-Phase Project: Phase
North Carolina Hydro Dam
Ten vertical drain holes were core drilled from the crest of the dam 120 feet deep into the dam.
Multi-Phase Project: Phase
Ironton Russell Bridge
This award winning new bridge is a cable stay structure with 326’ tall delta shaped towers and a 900’ main span (the longest span ever constructed by ODOT).
Multi-Phase Project: Phase
Culmerville Truss
The new 130-feet long two-lane bridge consisted of a single-span steel beam five-girder structure with new abutments supported by drilled caissons and rock anchors.
Multi-Phase Project: Phase
Hulton Bridge
The Pennsylvania Department of Transportation’s Replacement of the Hulton Bridge near Oakmont, PA, involved the replacement of a two lane truss bridge with a new 1,633 LF four lane five span haunched girder bridge erected upstream of the existing bridge on the Allegheny River.
Multi-Phase Project: Phase
Lilly Bridge
The Lilly Bridge project involved replacement of a cantilever truss bridge with a new 1,220-LF five-span, fabricated steel girder bridge.
Multi-Phase Project: Phase
Cochranton Truss
The new 338-feet long two-lane bridge was constructed with the substructure founded on cast-in-place concrete pipe piles.
Multi-Phase Project: Phase
Charleroi Locks & Dam Emptying Basin
The project scope involves building seven, separate precast concrete structures offsite, then loading the segments onto barges, delivering them to the job site, and assembling them into place, under water, using floating A-frame cranes.
Multi-Phase Project: Phase
Masontown Bridge
The Masontown Bridge project involved the replacement of an existing 11-span, two lane steel truss structure with a new 1,700-LF 7-span four lane plate girder bridge.
Multi-Phase Project: Phase
Alpha Coal - LaBelle Facility
The project consisted of two phases. Phase 1 involved the installation of an anchored sheet pile retaining wall and the installation of eight 120-inch diameter caissons. Phase 2 included the installation of structural steel beams and the construction of a 120-foot by 46-foot concrete deck.
Multi-Phase Project: Phase
Hawks Nest Dam
Brayman was selected to install 50 epoxy coated dam anchors, which upgraded the structure to current federal dam safety standards.
Multi-Phase Project: Phase
SR88 Cribwall Emergency Slide Repair
Not only was our team able to prevent the roadway from sliding into Ten Mile Creek, we also prevented an ensuing road closure accompanied by a 35-mile traffic detour.
Multi-Phase Project: Phase
ALCOSAN Flow Control Project
Brayman was contracted to install precast concrete coffer boxes around the pipe to allow for easier access to the pipe for cleaning operations.
Multi-Phase Project: Phase
Ices Ferry Bridge
The Ices Ferry Bridge project involved the replacement of a steel through-truss bridge with a new 960-LF four-span steel girder bridge located near Morgantown, WV.
Multi-Phase Project: Phase
Nesbitt Dam
This project exemplified Brayman's ability to offer "one stop shopping" for construction services by featuring several capabilities including high capacity dam anchors, temporary shoring, and driven piling.
Multi-Phase Project: Phase
Charleroi Locks & Dam - New River Wall
The new River Wall project is a component of a larger effort to improve and modernize the navigation facilities on the Lower Monongahela River between Braddock and Charleroi.
Multi-Phase Project: Phase
Kanawha River Bridge
Brayman was contracted by the WV Division of Highways to construct a new 2,975’ long concrete segmental bridge outside of Charleston, WV to carry eastbound I-64 over the Kanawha River.
Multi-Phase Project: Phase
PTC Mine Grout
As part of the third lane expansion of the Pennsylvania Turnpike from MP 67.59-MP 74.59, Brayman performed 30,000-ft of drilling and onsite batching of 16,000-cy of grout to stabilize an abandoned coal mine adjacent to the roadway.
Multi-Phase Project: Phase
Essroc Facility Expansion
At the time one of the largest micropile projects completed in the US. Over 1600 micropiles and Low Mobility Grouting installed in karst Limestone as part of a 320 million dollar plant upgrade.
Multi-Phase Project: Phase
Paddy Creek Dam
Brayman was contracted to provide specialty construction services in support of a safety improvement project located at Paddy Creek Dam on Lake James near Nebo, NC.
Multi-Phase Project: Phase
AEP Cardinal Power Station
Brayman was contracted by the Black & Veatch Corporation to construct a new barge unloading and mooring facility as part of the necessary flue-gas desulfurization (FGD) upgrades at the existing Cardinal Power Station located in Brilliant, OH.
Multi-Phase Project: Phase
Cliffside CCP Low Head Dam Modifications
Brayman Construction was awarded a contract to provide specialized construction services in support of a dam improvement project located on the Broad River in Cleveland County, North Carolina.
Multi-Phase Project: Phase
Dan River CCP Low Head Dam Modifications
Brayman Construction was awarded a contract to provide specialized construction services in support of a dam improvement project located on the Dan River near Eden, North Carolina.
Multi-Phase Project: Phase
Kerr Dam Spillway Stabilization
The Kerr Dam Spillway Stabilization Project includes one pre-production post-tensioned rock anchor on the top of the dam, 48 production post-tensioned anchors across the downstream face of the spillway, and a temporary platform for access to the spillway locations.
Multi-Phase Project: Phase
TVA Chickamauga Relief Hole
The Brayman Construction Foundations Division was subcontracted by the Tennessee Valley Authority (TVA) for specialty drilling services at the Chickamauga Dam.
Get in Touch
Interested in Partnering or Joining Our Team? Connect with us to explore opportunities for collaboration and career growth at Brayman Construction.
