STRUCTURES – BRIDGES – New/Rehabilitation/Inspection & Construction Management.
Project: REHABILITATION OF S.E. FREEWAY BRIDGES 2ND ST. TO 7TH ST: DESIGN OF 6TH OVERPASS SOUTHEAST
Washington, D.C.
Client: District Of Columbia, Department of Transportation, (DDOT-IPMA)
The firm was responsible for the development of construction drawings, specifications and cost estimates for the rehabilitation of the bridge. The existing bridge is a one span 75 feet long steel beam bridge carrying 8 lanes of traffic on a superstructure 125 feet wide.
The scope of work included inspection of the existing bridge and preparation of a report with recommendations for the Rehabilitation/Upgrade of the bridge. The evaluation included the Review of previous maintenance inspection reports, Field Inspection and analysis of the girders. The major rehabilitation work included the replacement of the deck, upgrading of the beams to meet AASHTO fatigue criteria, resetting and replacement of the steel bearings with low profile elastomeric bearings, and repairs to the abutments and back walls. The construction documents were prepared in the metric (SI) system.
Project: DESIGN & REHABILITATION OF BENNING ROAD BRIDGE OVER THE ANACOSTIA RIVER, N.E., WASHINGTON, D.C
Client: District Of Columbia, Department of Transportation, (DDOT-IPMA)
Capitol Engineers, P.C. was responsible for the design of the substructure of the Benning Road Bridge which spans the Anacostia River in Washington, D.C. The firm was responsible for the development of construction drawings, specifications and cost estimates for the substructure of the replacement bridge. The existing bridge was a nine-span 530 ft. long bridge carrying 8 lanes of traffic, two (2) raised sidewalks and a median for a total of 107 feet wide superstructure. The scope of work included inspection, report and recommendations for the Rehabilitation/Upgrade of the bridge. The evaluation included the following: 1) Review of previous maintenance inspection reports. 2) Field Inspection and concrete core testing of all piers & abutments. 3) Inspection of the condition of the existing timber piles (by excavation of test pits), and 4) Foundation and scour analyses for scour counter measures. After a thorough investigation of the substructure and superstructure, it was recommended that a replacement bridge be built. This recommendation was accepted by both the DDOT and the Federal Highway Administration.
Project: DESIGN & REHABILITATION OF BENNING ROAD BRIDGE OVER THE ANACOSTIA RIVER, N.E., WASHINGTON, D.C
Client: District Of Columbia, Department of Transportation, (DDOT-IPMA)
Capitol Engineers, P.C. was responsible for the design of the substructure of the Benning Road Bridge which spans the Anacostia River in Washington, D.C. The firm was responsible for the development of construction drawings, specifications and cost estimates for the substructure of the replacement bridge. The existing bridge was a nine-span 530 ft. long bridge carrying 8 lanes of traffic, two (2) raised sidewalks and a median for a total of 107 feet wide superstructure. The scope of work included inspection, report and recommendations for the Rehabilitation/Upgrade of the bridge. The evaluation included the following: 1) Review of previous maintenance inspection reports. 2) Field Inspection and concrete core testing of all piers & abutments. 3) Inspection of the condition of the existing timber piles (by excavation of test pits), and 4) Foundation and scour analyses for scour counter measures. After a thorough investigation of the substructure and superstructure, it was recommended that a replacement bridge be built. This recommendation was accepted by both the DDOT and the Federal Highway Administration.
STRUCTURES – BUILDINGS – New/ Rehabilitation/ Inspection & Construction Management
Project: Remedial Eng. & Related Services For Rehab. Of Houses. 500 Block of Foxhall Rd. South East, Washington, D.C.
Client: D, C. Department of Public Works.
The Project included Phase I- Structural Condition Survey/Inspection, Report and Recommendation for the Rehabilitation of 20 existing housing units. The in-depth structural inspection involved texts & photographs documenting all structural deficiencies and possible solutions to the defects. The report covered the underpinning of foundations, retaining walls, and rebuilding other structural elements, such as stairs, exterior & basement walls etc. There was also the demolition of a few buildings which were not economical to repair/rehabilitate.
Phase II- Included the preparation of the construction documents based on the Phase I Report. The Structural drawings, specifications, cost estimates & bid packages for the structural rehabilitation.
Capitol Engineers, PC were also involved in the construction management services for site inspections, shop drawing review,
Change order approval and the preparation pf AS-Built Drawings.
Project: RECONSTRUCTION OF GARAGE # 40. BETHESDA, MARYLAND.
Client: Montgomery County Division of Parking, Rockville, MD
Capitol Engineers, P. C. provided the resident engineer/quality control inspector who monitored the construction of Garage # 40 in Bethesda, Maryland. The scope of work included quality control inspections, review of construction documents, change orders, preparation of daily logs/inspection reports review of quantities for payment approval, and progress photographs, etc.
Project: SHORING SYSTEMS FOR REHAB. OF BANK BARN, Little Bennett Regional Park, Clarksburg, Maryland.
Client: Maryland National Capitol Park and Planning Commission.
Capitol Engineers, P. C. did a thorough analysis of the existing super structure of this park facility and followed it up by designing a new shoring system, including lateral bracing to facilitate rehabilitation. Capitol Engineers, P.C. was also responsible for all construction inspection & Supervision.
Project REVOVATION OF HEADEND BLDG. 14TH & FLORIDIA AVE. N.W. Washington, D.C.
Client: DC Cable Vision, 900 Michigan Ave., N.W. Washington, D.C.
Capitol Engineers, P. C. provided complete Architecture/Engineering design and prepared the construction documents for the renovation of D.C. Cable Vision’s End Building. The scope of the work included site design, replacement of existing roof, complete renovation of the interior spaces, and replacement of the concrete floor slab with a new raised and perforated paneled floor system to provide ventilation for sensitive
computer equipment.
Project: SITE DRAINAGE IMPROVEMENTS DISTRICT CABLE VISION, Washington, D.C.
Client: District Cable Vision, 900 Michigan Avenue, N.E. Washington, D.C.
Capitol Engineers, P. C. was responsible for preparing the construction documents for the entire project. The scope of work includes the following: Topographic survey (locating all utilities and inverts of the storm manholes\catch basins & inflow\outflow pipes). Storm water management, maintenance of traffic, pre-construction and construction supervision services. Capitol Engineers, P.C. design included resurfacing of the parking lot to facilitate positive drainage to trench drains, utility adjustments, storm water quality structure system, erosion control and staged construction for the continuous operation of daily business during construction.