Addendum to GEO Report No. 02-17 MA.PDF
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- Solicitation number
- 693C73-20-B-000009
About this file
This document provides details on a federal contract opportunity for bridge replacement work. The project consists of replacing the existing 658-foot, 16-span bridge over Lee Hall Reservoir in Newport News, Virginia with a new 676-foot bridge containing 9 prestressed concrete bulb-T spans. The proposed bridge will be 86 feet wide with five travel lanes, two shoulders, and a median. Approach work will include reconstructing roadway approaches, grading, drainage, paving, and other miscellaneous tasks. The total project length is 0.56 miles. At least one lane of traffic in each direction must be maintained. Sealed bids are due on or around February 5, 2020 as specified in solicitation number 693C73-20-B-000009. The cost of the project is expected to exceed $10 million. The Federal Highway Administration and City of Newport News are the agencies involved.
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Form FHWA-201 (Rev. 11-67)
U.S. DEPARTMENT OF TRANSPORTATION
FEDERAL HIGHWAY ADMINISTRATION
Use this form in lieu of transmittal slips within Dept. of Trans. When message comment is to be retained as file material. Do not prepare carbons. Not to be used in lieu of Form FHWA- 121 for informal correspondence. Addendum Memo
\\fhfl15fileserve.flhd.fhwa.dot.gov\data\PROJECTS\_ACCESS\VA\Projects\VA 23_VA FLAP NPNWS 105(1)\Techserv\Geotech\Reports\Final Report\Addendum\Addendum to GEO Report No. 02-17.doc
SUBJECT: PROJECT VA FLAP NPNWS 105(1) – Revised Foundation Recommendations for Replacement of Fort Eustis Boulevard (Route 105) Bridge Over Lee Hall Reservoir, Newport News, Virginia
TO MESSAGE/COMMENT FROM/DATE
C. Burnell Highway Engineer
Through:
B. Eshbaugh Project Manager
M. Carruthers Highway Design
This memorandum provides details of our revised foundation recommendations listed in our May 2018 “Soils and Foundation Report No. 02-17.”
Recommendations listed in this Memorandum should supersede the ones listed in the original report.
DESIGN ANALYSIS AND RECOMMENDATIONS
We previously recommended supporting the proposed structure on 12-inch driven pre-stressed reinforced concrete (PSC) piles. During the final design process, the design and construction teams expressed their concern regarding the possibility of encountering existing timber piles during the driving process.
We concluded that pre-boring may be required for the new PSC piles to reach the design tip elevations. Pre-boring should be done in accordance with VADOT specifications.
We now recommend utilizing 14-inch driven PSC piles to support the proposed structure. Additionally, we revaluated the pile lengths due to the possible loss of skin friction from pre-boring. Our new recommendations are summarized in the table below.
Updated Pile Lengths for the 14-inch PSC Piles
Pre-boring depth (feet)
Pile Embedded Length (feet)
0 48 10 48 20 48 30 55 40 60 50 65 60 75
M. Abdelhadi Geotechnical
M.
Abouzakhm Division Geotechnical
L. O’Brien Technical Services
10/14/2019
| 2019-10-15T12:43:08-0400 | |
| MAJED JIHAD ABDELHADI |
| 2019-10-15T15:43:35-0400 | |
| MOUNIR A ABOUZAKHM |
| 2019-12-17T11:37:53-0500 | |
| MARY ELIZABETH ROSE O'BRIEN |
File details come from the government source that posted it. Updated .