Past Performance - Heavy Civil

Project Description

Demolish and replace heavy duty concrete loading ramp, remove and replace 95,000 SQFT of asphalt, construct drainage upgrades including over 1500 LNFT of concrete valley gutter and outfall structures, 450 LNFT of fencing upgrades including (4) 40’ rolling gates and (1) 4’ personnel gate, install radiation detectors with concrete pedestal bases and lightning protection upgrades.

Scope of Work

Concrete work includes 960 cubic yards of concrete placed as part of “Concrete Loading Dock/Ramp and Leveler Install”, “60’ x 30’ Concrete vault slab on-grade”, “Concrete valley gutters and outfall structures” for drainage upgrades at yard. This work also included demolition of original concrete dock/ramps. Asphalt demolition and replacement consists of 95,000 SQFT of 4” thick asphalt concrete pavement (2,300 tons) of asphalt removed and replaced. Also approximately 12,000 LNFT of pavement marking striping redone to go along with asphalt replacement. 400 LNFT of 7’ high fence demoed and replaced, along with (4) 40’ wide rolling gates and (1) personnel “man gate” installed. Two radiation detector panels that were previously purchased by government in 2014 were placed on newly constructed pedestal bases with appurtenances attached. Deployment of system required additional electrical and conduit placement - (4) new 2” diameter conduit was placed to serve scale house.

Project Challenges

West Point was tasked early on in the project to design around scope adjustments overlooked before the start of the project. Some critical redesign of ramp/docks was needed for rebar shop drawing submittals in order to include new dock levelers. the solution to this issue was for West Point to propose new rebar design layout based on best practice design for dock reinforcement then submit for approval to client. Accepted by DLA/USACE. Drainage/utility conflict – unforeseen utility concrete cap slurry impeded some previously designed valley gutter alignments constrained by low slope conditions. Solution proposed by West Point was to increase the fiber-reinforced concrete section by 2” – up to 10” from 8” thick and remove requirement for 6” of aggregate base below the concrete section in conflicted alignment areas. Accepted by DLA/USACE.