W912P517C0007
Definitive Contract
Overview
Government Description
CHICKAMAUGA LOCK CHAMBER - BASE CONTRACT. THE WORK INVOLVES CONSTRUCTION ACTIVITIES FOR A REPLACEMENT NAVIGATION LOCK CHAMBER AT THE CHICKAMAUGA LOCK AND DAM ON THE TENNESSEE RIVER IN CHATTANOOGA, TN, INCLUDING NEW LANDWARD AND RIVERWARD CONCRETE LOCK WALLS, INSTALLATION OF MITER GATES, CULVERT VALVES, BULKHEADS, AND OTHER ANCILLARY ITEMS. MAJOR TASKS INCLUDE SITE EXCAVATION, SET-UP AND OPERATION OF A CONCRETE BATCH PLANT, TREMIE AND MASS CONCRETE PLACEMENTS, DEWATERING OF COFFERED AREAS, INSTALLATION OF REINFORCED CONCRETE DRILLED SHAFTS AND EMBEDDED METALS, FABRICATION AND INSTALLATION OF STRUCTURAL STEEL COMPONENTS, INSTALLATION OF GOVERNMENT-FURNISHED PRE-FABRICATED LOCK COMPONENTS, ENVIRONMENTAL CONTROLS FOR IN-RIVER OPERATIONS, STRUCTURAL INSTRUMENTATION, ELECTRICAL AND MECHANICAL SYSTEMS, CONSTRUCTION OF THE LOCK OPERATION BUILDING, MARINE-BASED EXPLORATORY DRILLING, AND NEW LOCK TESTING/COMMISSIONING. SITE SURVEYING IS ALSO BEING PERFORMED AS PART OF THIS CONTRACT.
Awardee
Awarding Agency
Funding Agency
Place of Performance
Chattanooga, TN 37406 United States
Pricing
Fixed Price
Set Aside
None
Extent Competed
Full And Open Competition
Related Opportunity
Analysis Notes
Amendment Since initial award the Potential End Date has been extended from 08/31/18 to 01/27/26 and the Potential Award value has increased 27% from $244,791,274 to $309,878,150.
Subcontracting Plan This Definitive Contract has an Individual Subcontract Plan. The Department of Defense has an overall small business subcontracting goal of 30%
Subcontracting Plan This Definitive Contract has an Individual Subcontract Plan. The Department of Defense has an overall small business subcontracting goal of 30%
Shimmick Construction Company was awarded
Definitive Contract W912P517C0007 (W912P5-17-C-0007)
for Chickamauga Lock Chamber Replacement Contract
worth up to $309,878,150
by the U.S. Army Corps of Engineers
in September 2017.
The contract
has a duration of 8 years 4 months and
was awarded
through solicitation Chickamauga Lock Chamber Replacement
full & open
with
NAICS 237990 and
PSC Z2KA
via sealed bid acquisition procedures with 6 bids received.
DOD Announcements
Sep 2017:
AECOM Energy and Construction Co., Greenwood Village, Colorado, has been awarded a $28,889,820 firm-fixed-price contract for Chickamauga Lock Chamber replacement. Bids were solicited via the Internet with six received. Work will be performed in Chattanooga, Tennessee, with an estimated completion date of Feb. 4, 2023. Fiscal 2015, 2016 and 2017 operations and maintenance (Army) funds in the amount of $28,889,820 were obligated at the time of the award. U.S. Army Corps of Engineers, Nashville, Tennessee, is the contracting activity (W912P5-17-C-0007).
Jul 2018: AECOM Energy & Construction Inc., Greenwood Village, Colorado, was awarded a $25,890,640 modification (P00003) to contract W912P5-17-C-0007 for Chickamauga Lock Chamber replacement. Work will be performed in Chattanooga, Tennessee, with an estimated completion date of March 18, 2019. Fiscal 2018 other funds in the amount of $25,890,640 were obligated at the time of the award. U.S. Army Corps of Engineers, Nashville, Tennessee, is the contracting activity.
Sep 2018: AECOM Energy & Construction Inc., Greenwood Village, Colorado, was awarded a $40,648,775 modification (P00005) to contract W912P5-17-C-0007 for lock chamber replacement, foundation preparation for both the land wall and river wall, and construction of the upstream river wall. Work will be performed in Chattanooga, Tennessee, with an estimated completion date of Jan. 1, 2020. Fiscal 2018 inland waterway trust funding and civil works funds in the amount of $40,648,775 were obligated at the time of the award. U.S. Army Corps of Engineers, Nashville, Tennessee, is the contracting activity.
Mar 2019: AECOM Energy and Construction Inc., Greenwood Village, Colorado, was awarded a $59,639,368 modification (P00007) to contract W912P5-17-C-0007 for Chickamauga Lock Chamber replacement. Work will be performed in Chattanooga, Tennessee, with an estimated completion date of Nov. 14, 2020. Fiscal 2019 general construction funds in the amount of $59,639,368 were obligated at the time of the award. U.S. Army Corps of Engineers, Nashville, Tennessee, is the contracting activity.
Jun 2020: Shimmick Construction Co. Inc., Oakland, California, was awarded a $78,801,484 modification (P00012) to contract W912P5-17-C-0007 for Chickamauga Lock chamber replacement. Work will be performed in Chattanooga, Tennessee, with an estimated completion date of June 23, 2023. Fiscal 2020 civil construction funds in the amount of $78,801,484 were obligated at the time of the award. U.S. Army Corps of Engineers, Nashville, Tennessee, is the contracting activity.
Dec 2023: Shimmick Construction Co. Inc., Irvine, California, was awarded a $9,881,973 modification (P00019) to contract W912P5-17-C-0007 for steel and concrete overruns for the Chickamauga Lock replacement project. Work will be performed in Chattanooga, Tennessee, with an estimated completion date of Jan. 7, 2026. Fiscal 2021 civil construction funds in the amount of $9,881,973 were obligated at the time of the award. U.S. Army Corps of Engineers, Nashville, Tennessee, is the contracting activity.
Jul 2018: AECOM Energy & Construction Inc., Greenwood Village, Colorado, was awarded a $25,890,640 modification (P00003) to contract W912P5-17-C-0007 for Chickamauga Lock Chamber replacement. Work will be performed in Chattanooga, Tennessee, with an estimated completion date of March 18, 2019. Fiscal 2018 other funds in the amount of $25,890,640 were obligated at the time of the award. U.S. Army Corps of Engineers, Nashville, Tennessee, is the contracting activity.
Sep 2018: AECOM Energy & Construction Inc., Greenwood Village, Colorado, was awarded a $40,648,775 modification (P00005) to contract W912P5-17-C-0007 for lock chamber replacement, foundation preparation for both the land wall and river wall, and construction of the upstream river wall. Work will be performed in Chattanooga, Tennessee, with an estimated completion date of Jan. 1, 2020. Fiscal 2018 inland waterway trust funding and civil works funds in the amount of $40,648,775 were obligated at the time of the award. U.S. Army Corps of Engineers, Nashville, Tennessee, is the contracting activity.
Mar 2019: AECOM Energy and Construction Inc., Greenwood Village, Colorado, was awarded a $59,639,368 modification (P00007) to contract W912P5-17-C-0007 for Chickamauga Lock Chamber replacement. Work will be performed in Chattanooga, Tennessee, with an estimated completion date of Nov. 14, 2020. Fiscal 2019 general construction funds in the amount of $59,639,368 were obligated at the time of the award. U.S. Army Corps of Engineers, Nashville, Tennessee, is the contracting activity.
Jun 2020: Shimmick Construction Co. Inc., Oakland, California, was awarded a $78,801,484 modification (P00012) to contract W912P5-17-C-0007 for Chickamauga Lock chamber replacement. Work will be performed in Chattanooga, Tennessee, with an estimated completion date of June 23, 2023. Fiscal 2020 civil construction funds in the amount of $78,801,484 were obligated at the time of the award. U.S. Army Corps of Engineers, Nashville, Tennessee, is the contracting activity.
Dec 2023: Shimmick Construction Co. Inc., Irvine, California, was awarded a $9,881,973 modification (P00019) to contract W912P5-17-C-0007 for steel and concrete overruns for the Chickamauga Lock replacement project. Work will be performed in Chattanooga, Tennessee, with an estimated completion date of Jan. 7, 2026. Fiscal 2021 civil construction funds in the amount of $9,881,973 were obligated at the time of the award. U.S. Army Corps of Engineers, Nashville, Tennessee, is the contracting activity.
Status
(Open)
Last Modified 10/8/25
Period of Performance
9/28/17
Start Date
1/27/26
Current End Date
1/27/26
Potential End Date
Obligations
$309.9M
Total Obligated
$309.9M
Current Award
$309.9M
Potential Award
Award Hierarchy
Definitive Contract
W912P517C0007
Subcontracts
Activity Timeline
Subcontract Awards
Disclosed subcontracts for W912P517C0007
Opportunity Lifecycle
Procurement history for W912P517C0007
Transaction History
Modifications to W912P517C0007
People
Suggested agency contacts for W912P517C0007
Competition
Number of Bidders
6
Solicitation Procedures
Sealed Bid
Evaluated Preference
None
Performance Based Acquisition
Yes
Commercial Item Acquisition
Commercial Item Procedures Not Used
Simplified Procedures for Commercial Items
No
Other Categorizations
Subcontracting Plan
Individual Subcontract Plan
Cost Accounting Standards
Exempt
Business Size Determination
Large Business
Defense Program
None
DoD Claimant Code
Construction
IT Commercial Item Category
Not Applicable
Awardee UEI
PNF1UVJ6YE96
Awardee CAGE
3LYB5
Agency Detail
Awarding Office
W912P5 W072 ENDIST NASHVILLE
Funding Office
960102
Created By
ryan.c.cleary@usace.army.mil
Last Modified By
ryan.c.cleary@usace.army.mil
Approved By
ryan.c.cleary@usace.army.mil
Legislative
Legislative Mandates
Construction Wage Rate Requirements
Performance District
TN-03
Senators
Marsha Blackburn
Bill Hagerty
Bill Hagerty
Representative
Charles Fleischmann
Budget Funding
| Federal Account | Budget Subfunction | Object Class | Total | Percentage |
|---|---|---|---|---|
| Construction, Corps of Engineers - Civil (096-3122) | Water resources | Land and structures (32.0) | $29,168,269 | 102% |
Modified: 10/8/25