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Heavy Civil Construction
Dam & Waterway Construction
Capital construction programs where procurement discipline, schedule certainty, and field execution determine delivery.
Example organizations in this space:
Kiewit
Granite Construction
Walsh Construction
Skanska
This interactive experience is the shipped product itself — the same application code customers run in production, mounted read-only in your browser over a real sample journey. Not a video, not a mockup: because the demo and the product are one codebase, it can never drift from the real thing.
Inside this journey
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Pre-Sales
Qualify urgency and map technical, regulatory, and stakeholder constraints before designing a rehabilitation plan.
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Qualification
Confirm urgency, budget source, procurement authority, preliminary bonding capacity, and immediate constraints before investing in a full site assessment.
Qualification Questions
Project urgency and immediate constraints
- What date or event is driving the need for rehabilitation (for example, next high-water season or an inspection hold point)?
- What immediate site or program constraints should the seller know before proposing a site assessment?
Funding and procurement authority
- What is the source of funds for this work?
- Which budget range best matches the expected construction magnitude for this rehabilitation?
- Who holds the contracting authority to award this work (who can sign contracts) and who else must approve?
Bonding, technical fit, and must-have capabilities
- What is the buyer's minimum acceptable contractor bonding capacity for this project?
- Which contractor capabilities are required or strongly preferred for technical compliance and safety during construction?
Site-assessment readiness and next step decision
- Do you have recent inspection findings, updated hydrology, geotechnical reports, or regulatory notes available to share if we move to a full site assessment?
- If the answers above indicate basic fit, are you ready to schedule a full discovery and site-assessment planning call?
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Site Assessment
Map the dam's current condition, inspection findings, updated hydrology, stakeholder list, and regulatory constraints to define risk and schedule implications.
Site Assessment Questions
Quick site snapshot
- Tell the basic location and dam type, including reservoir name and spillway configuration.
- When was the last formal dam safety inspection that reported a reduced spillway capacity?
- Who on your team will be the single point of contact for technical questions and report transmissions?
- Can you attach or summarize the inspection finding that triggered this assessment (summary or uploaded file)?
- How soon do you expect a completed site assessment report, choose the best timeline?
Where the ground tells a different story
- If a foundation redesign becomes necessary, what single cost or schedule consequence would make you stop the project?
- Describe any unexpected geotechnical observations from recent borings, probe trenches, or nearby site work.
- Which borehole logs, geophysics outputs, or lab reports can you share today, and which are restricted?
- Estimate the contingency you can allocate for subsurface surprises, choose the closest range.
- Who must authorize a foundation redesign and how quickly can that authorization typically be obtained?
When water and schedule collide
- What single flood or reservoir release scenario would force you to pause construction planning?
- List the in-water work windows, seasonal flow constraints, and reservoir operations that bind your schedule.
- Identify the authority that controls reservoir releases and the typical notice period they provide for operational changes.
- How many times in the past decade has this reach experienced unplanned high releases outside published seasonality?
- Suppose the next high-water season begins in six months, which milestone must be complete to proceed without extra risk?
Diversion strategy, and what keeps you awake at night
- Name the single diversion or cofferdam risk that would stop the project if it occurred.
- Select the diversion strategies you are considering.
- Describe your team's recent hands-on experience with temporary cofferdams and large-scale dewatering, including the largest diversion handled.
- How many days would your procurement process typically require to award a long-lead diversion subcontract, after scope clearance?
- Tell which missing diversion capability would force you to hire outside specialty support and add more than eight weeks to schedule.
Who else is on the shortlist
- Name the contractors, incumbent arrangements, or internal options you are actively weighing and the single reason each remains in contention.
- For the incumbent approach to stay in place, what concrete proof or result would have to exist?
- Has any internal group proposed executing diversion or dewatering without external contractors?
- Select the reasons that would make you prefer the incumbent over a new award.
- Would you invite new bids if the incumbent matched required bonding and the exact schedule?
Practical readiness, permits, bonding, and data
- If permits, bonding, or an identified owner are not secured by mobilization, which single gap would block award immediately?
- Choose which federal or state permits are still outstanding for this scope.
- Estimate typical lead time in days for each outstanding permit once the application package is complete.
- Outline your data readiness for updated hydrology, reservoir routing, and the file formats you can provide.
- Are required insurance and bonds currently in place, or what maximum contract value can your organization accept under existing capacity?
- With a maximum available bonding capacity of $50M, would you proceed, change delivery approach, or pause?
Acceptance gates, instrumentation, and sign-off
- What single technical acceptance criterion would make you refuse to allow reservoir filling?
- List the instrumentation and performance metrics you require to verify during commissioning.
- Identify the named signatories required for regulatory and technical acceptance and whether each approval is mandatory or advisory.
- Choose the preferred sequence for acceptance and filling.
- Suppose pore pressure or deformation readings exceed thresholds during filling, which action will you demand?
Timing, mobilization, and escalation paths
- Report the long-lead items missing today that would prevent mobilization within three weeks.
- Provide the number of named subcontractors or vendors that must be under contract before mobilization.
- Pick the single highest-risk escalation cause during construction.
- Outline the emergency response roles and who has authority to halt or resume work during a river event.
- Should an unanticipated flood double predicted inflow, would your team request suspension, a change order, or continue under the original scope?
Decision clock and next steps
- State the single schedule or bonding fact that would make you sign within seven days.
- Pick your preferred procurement path for the work.
- Provide the decision makers and the expected internal timeline for award, including required reviews.
- Are there internal budget windows or fiscal constraints that would prevent award in the current quarter?
- Assuming the site assessment proves the revised capacity can be restored within your budget and schedule targets, what single issue would stop you from signing that week?
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Constructability Review
Walk through proposed river diversion, cofferdam, dewatering, and sequencing strategies using the buyer's site data to validate approach and surface critical risks.
Solution Experience
- Constructability Review Session
- Confirm the current state and its cost to your program
- You confirm the proposed diversion and sequencing are constructable given your site data and key assumptions.
- Provide the latest hydrology, the most recent dam inspection report, and as-built drawings for the diversion footprint.
- You accept the identified critical risks and the proposed mitigations or identify any additional constraints that must be addressed before procurement.
- Verify site data and key assumptions
- Produce a one-page diversion concept summary with key assumptions, contingency triggers, and a high-level risk register within five business days.
- Deliver a 72-hour cofferdam mobilization plan and the dewatering barge deployment timeline tied to your in-water work windows.
- You agree on the specific deliverables and evidence needed to support the Contracting Officer's technical evaluation and bonding assessment.
- Walk through the proposed river diversion, cofferdam, and dewatering sequence
- Confirm regulatory in-water work windows and provide named permitting contacts or recent permit correspondence.
- Surface critical failure modes and mitigations
- Validate the approach with a direct confirmation
- Schedule a follow-up session to review the written diversion concept, risk register, and high-level cost/schedule range.
- Agree next evidence and timeline for procurement support
- Constructability Review Session
- Constructability Review Deck
- Constructability Review Solution Brief
- meeting
- slides
- document
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Solution Scope
Define rehabilitation modules, diversion method, responsibilities, schedule windows, acceptance criteria, and explicit exclusions.
Scope Configuration
- Mobilize cofferdam crew and materials
- Deploy dedicated dewatering barge and pumps
- Install temporary river diversion works
- Excavate and prepare dam foundation
- Mass concrete placement for spillway and cutoff
- Earthfill and rockfill embankment construction
- Underwater concrete repair and pressure grouting
- Construct spillway lining and energy dissipation
- Install gates, hoists, and control systems
- Instrumentation and reservoir monitoring installation
- Controlled reservoir drawdown and filling support
- Erosion protection and channel stabilization works
Scope Questions
Mobilize cofferdam crew and materials
- Do you have an approved cofferdam design package (drawings, calculations, and temporary works narrative) for the proposed work area?
- What is the required mobilization lead time in days before your in‑water work window for cofferdam deployment?
- Provide the maximum river stage and design flood event (e.g., PMF stage or recurrence) the temporary cofferdam must resist, citing the controlling design elevation or hydrograph.
- Who on your team is the permitting or contracting contact that will receive our cofferdam submittal and sign-off packages?
- Specify known material constraints at the site that affect cofferdam selection (available sheet pile lengths, rock source distance, weight limits for crane lifts).
- Are there site access or traffic restrictions (load-limited bridges, seasonal road closures) that would affect rapid crew mobilization?
Deploy dedicated dewatering barge and pumps
- What average and peak pumping rates (cubic feet per second or gallons per minute) do you require to maintain the work area dewatered per the diversion plan?
- Is the proposed barge placement compatible with your site bathymetry and the barge draft shown on the site survey or bathymetric plan?
- Which pump redundancy configuration do you require for the dewatering system (N+1, N+2, or single pump with standby)?
- Which power source do you prefer for the dewatering barge: shore power, onboard generator sets, or a hybrid arrangement?
- Who will be responsible for turbidity and environmental monitoring during dewatering and what turbidity action levels (NTU) does your permit require?
- Are there constraints on discharge location or allowed outfall parameters (e.g., settled discharge only, distance from intake, temperature limits)?
Install temporary river diversion works
- When are your in‑water work windows (start and end dates) that constrain construction of the diversion channel or cofferdam tie-ins?
- Which diversion method is preferred for your project: full bypass channel, staged cofferdam diversion, or in‑channel pumping with partial bypass?
- Provide the diversion alignment reference (drawing number or stationing) and note any sensitive reaches shown on the site plan.
- List required temporary diversion structures and protections (intake screens, headworks, temporary outlet energy dissipation, cofferdam tieback details) by drawing reference.
- Identify sediment control measures required by your permits during diversion construction (e.g., silt curtains, settling basins) and the maximum permitted turbidty increase.
- Specify any downstream constraints on flow routing during diversion (critical water users, instream habitats, minimum bypass flows in cfs).
Excavate and prepare dam foundation
- Do you have complete geotechnical deliverables for the foundation footprint (borehole logs, rock cores, RQD, groundwater elevations) accessible to our team?
- What allowable bearing pressure or design foundation criteria are specified in the foundation design (psf or kPa) and are there controlling depth limits?
- Provide the project requirement for handling unexpected subsurface conditions (e.g., organics, liquefiable layers, cobble layers) including contingency budget or approval path.
- Specify which foundation treatment methods are acceptable if required (pressure grouting, keyway excavation and backfill, rock anchors, underpinning).
- Indicate the required in‑place density or compaction standard for foundation and structural fill (cite ASTM or agency spec and percent of maximum dry density).
- Are there groundwater control limits during excavation (maximum drawdown depth or allowed dewatering method) shown in your specifications?
Mass concrete placement for spillway and cutoff
- Provide the specified concrete mix design and target 28‑day compressive strength (psi or MPa) for mass concrete elements.
- What maximum lift thickness and placement rate are prescribed to control thermal cracking for mass concrete sections in the spillway and cutoff?
- Detail required temperature monitoring, thermal control plan, and reporting cadence (thermocouple spacing, recording frequency) for mass concrete pours.
- Identify jointing strategy and which drawings show construction joint and contraction joint locations for acceptance during inspections.
- Specify whether tremie placement or other underwater concreting techniques are required for sections located below the working water table.
- Estimate required concrete placement rates (cubic yards or meters per hour) and site concrete plant access limitations that affect scheduling.
Earthfill and rockfill embankment construction
- Do you have approved borrow source test results (gradation, plasticity, contamination) for materials intended for embankment zones?
- Provide required compaction requirements for embankment zones (percent of maximum dry density, lift thickness, moisture control specifications).
- Which embankment zones require rockfill or filter zones and what maximum rock size and specification are shown on the plans?
- Specify inspection and testing frequency for earthfill placement (nuclear density tests per lift, frequency per 1000 cy, etc.).
- Indicate any seismic design parameters or liquefaction mitigation requirements that affect compaction or zone design.
- Are temporary staging limits or public safety restrictions in place for stockpiling borrow and placing embankment material?
Underwater concrete repair and pressure grouting
- Do you have a repair schedule or stationing that identifies locations requiring underwater repair versus full replacement (reference drawing numbers or station limits)?
- Provide the grout mix design, target penetration, and maximum allowable injection pressure for pressure grouting specified in the repair design.
- What diver safety, wet‑work, or confined‑space procedures and certifications must be followed for underwater repair operations at this site?
- How will you measure acceptance of leak repairs in submerged elements (permissible seepage rate in L/s or gpm, visual criteria, or hydrostatic test duration)?
- Identify required access or remote placement methods for grout ports and injection tooling (diver placement, tremie tube, ROV-assisted).
- Are environmental limits on grout bleed, chemical composition, or disposal defined in your permit that affect grout selection?
Construct spillway lining and energy dissipation
- Which lining type is specified on the design drawings for the spillway (cast‑in‑place concrete apron, articulated block, grouted riprap, or other)?
- Provide the design flow velocity and energy dissipation parameters (feet per second or m/s and stilling basin criteria) the lining must withstand.
- What is the specified apron thickness, reinforcement detailing, and placement tolerance for the concrete lining shown on the structural drawings?
- What acceptance criteria will define a successful lining installation (for example, maximum allowable displacement in inches, riprap gradation acceptance, or no visible undermining after a specified test flow)?
- How will you provide equipment access for lining placement and energy dissipator construction (temporary ramps, barge platforms, staged cofferdam)?
- Identify required QA testing for lining materials (concrete cylinder breaks, core acceptance, riprap gradation and percent passing) and the reporting frequency.
Install gates, hoists, and control systems
- Do you have approved gate shop drawings, hoist schematics, and an electrical single‑line diagram for integration with the facility controls?
- Provide required hoist rated load, duty cycle, and redundancy requirements (for example main hoist plus emergency hoist or backup power).
- Which communication protocol or supervisory control requirement must gate controls integrate with (for example Modbus, DNP3, or other protocol specified by your telemetry system)?
- Indicate the factory acceptance test (FAT) witnessing requirements for gate assemblies and whether remote witness is acceptable.
- Specify electrical safety and lockout/tagout (LOTO) expectations and any documentation you require prior to energization.
- Are spare parts or maintenance kits required to be supplied with gate equipment at handover (list minimum items or supply a kit requirement)?
Instrumentation and reservoir monitoring installation
- Which instrument types and locations are shown on your instrument plan (for example piezometers at station X+00, inclinometers at slope face, surface settlement monuments with stationing)?
- What data logging frequency and telemetry method do you require for real‑time monitoring (15 minute, hourly, cellular telemetry, satellite, or hardwired SCADA)?
- What alarm thresholds and notification recipients must be configured for pore pressure and movement exceedances (provide numeric thresholds and contact roles)?
- What acceptance evidence will validate correct installation and calibration of instruments (for example benchmark verification, calibration certificates, and as‑built instrument location survey)?
- Indicate the telemetry ownership and the integration endpoint that will receive the data feed (your SCADA, third‑party portal, or owner archive).
- Specify power supply and shelter requirements for instrument clusters and telemetry cabinets shown on the site electrical plan.
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Mutual Commit
Finalize commercial terms, bonding and insurance requirements, schedule milestones, and regulatory responsibilities to confirm readiness to proceed.
Agreement Modules
- Construction Contract
- Technical Statement of Work (SOW)
- Performance and Payment Bonds
- Insurance Requirements and Certificate
- Project Schedule and Milestone Attachment
- Regulatory Permits and Responsibilities Addendum
- Mobilization Authorization and Notice to Proceed
- Commissioning, Reservoir Filling & Acceptance Protocol
- Change Order and Compensation Procedure
- Payment Schedule and Invoicing Terms
- Safety and Emergency Response Agreement
- Subcontractor Approval & Self‑Performing Work Schedule
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Deployment
Operationalize construction with readiness checks, sequenced execution, and regulatory acceptance gates.
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Pre-Deployment Readiness
Capture concrete readiness facts — permits, in‑water work windows, staging and access plans, named owners, and contingency triggers — required before mobilization.
Pre-Deployment Questions
Environment and site access
- Is the primary site access route and staging area confirmed for mobilization? (so we can plan haul routes, crane placement, and barging)
- If access or staging is partial or pending, what is the earliest date unrestricted access is expected? (enter a date or short timeline so we can schedule mobilization)
Permits, in‑water windows, and environmental constraints
- What is the current status of required permits and in‑water work window confirmation? (select the option that best fits — this determines whether we can start diversion and cofferdam work)
- If permits or windows are pending or conditional, name the permit owner/liaison and the expected approval or window confirmation date (so we can sequence critical long‑lead activities)
People and ownership
- Who is the buyer's on‑site owner for permitting, regulatory liaison, and final acceptance (enter role here; name will go in deployment config) — this is who the deployment team will coordinate for approvals
- Which seller on‑site owners are assigned for mobilization workstreams? (select all that apply so we can map tasks to owners)
Timing, contingencies, and acceptance triggers
- Is there a firm mobilization 'go/no‑go' date or a critical hydrologic/permit trigger that must be met before mobilization? (so we can commit resources or hold)
- If mobilization is contingent, state the contingency trigger and the named owner who will confirm it (e.g., water elevation, permit milestone, funding release) and the expected confirmation date (so we can define the hold/release path)
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Construction Execution
Execute the construction plan with a detailed schedule, resource assignments, safety and quality controls, and flood-response escalation paths.
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Reservoir Commissioning Sign-Off
Formal regulatory and technical acceptance gate: verify foundation treatments, spillway performance, instrumentation, emergency plans, and named approvals before reservoir filling.
Checklist items
- Receive written regulatory Permission to Commence Reservoir Filling
- Obtain buyer geotechnical acceptance of completed foundation treatments
- Complete spillway performance acceptance testing and deliver test report
- Commission and baseline instrumentation with calibrated telemetry
- Approve Emergency Action Plan (EAP) and distribute notification roster
- Verify temporary diversion and cofferdam works are removed or secured per plan
- Deliver as-built drawings, operations & maintenance (O&M) manuals, and spare parts list
- Complete operator training and obtain competency sign-offs
- Confirm insurance, bonds, and financial security cover filling and post-filling period
- Conduct flood-response tabletop exercise or drill and document outcomes
- Obtain final construction completion certificate and closeout of critical hold points
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Success
Monitor post-rehabilitation performance, instrument data, compliance reporting, and maintain a shared channel for issues and enhancements under a joint governance cadence.
Success Reviews
- Post-Commissioning Health Check (weeks 1-4)
- First Performance Measurement (weeks 4-10)
- 90-Day Performance Review (around day 90)
- Quarterly Operational Review
- Annual Compliance and Lessons Learned Review
Issues & Enhancements
- Publish the quarterly maintenance schedule with required staging and permit windows.
- Document root-cause analysis for each metric outside target and propose corrective tasks with estimated durations.
- Submit any outstanding regulatory reports required within the next 14 days and confirm filing receipts.
- Consolidated 90-day performance dashboard
- Confirm whether instrument uptime and the number of open safety or regulatory nonconformances meet the expectations recorded in Reservoir Commissioning Sign-Off.
- Document final remediation status for all open items and assign clear timelines for any remaining work.
- Publish the 90-day consolidated performance report with attachments for all closed and open items.
- For each open nonconformance, list the verification steps required to confirm closure and a target completion date.
- Schedule any required follow-on inspections or instrument recalibrations within the next 30 days.
- Trend analysis and anomaly review
- Agree the quarter's maintenance and mitigation plan based on pore pressure and seepage trends.
- Confirm regulatory reporting timeliness and instrument uptime meet operational expectations or identify corrective steps.
- Reconfirm handover package and owners
- Update the open-issue tracker with expected completion dates for items elevated this quarter.
- Confirm and document escalation contact list and response time expectations for flood-event triggers.
- Annual compliance and incident summary
- Confirm annual compliance reporting completeness and closure status for the year's unplanned seepage and safety events.
- Ratify updates to the O&M plan and the joint governance cadence for the coming year.
- Publish the annual compliance dossier with incident reports and closure evidence.
- Update the O&M plan with agreed monitoring frequency and maintenance windows for the next 12 months.
- Archive as-built drawings, instrument logs, and regulatory submissions to the shared retention location and confirm access.
- Confirm telemetry feeds and instrument health status are live to the shared channel.
- Produce a prioritized list of urgent defects and safety items with remediation tasks and target dates.
- Validate real-time telemetry feed to the shared workspace and confirm sampling intervals.
- Publish the short list of urgent defects with remediation descriptions and target completion dates.
- Provide photos and field notes for each urgent observation in the shared channel.
- Present first 4-10 week instrumentation data
- Determine whether spillway discharge capacity and pore pressure trends align with targets recorded in Reservoir Commissioning Sign-Off or require remediation.
- Agree a prioritized corrective action plan with dates to resolve any instrument or performance gaps before the 90-day review.
- Deliver a consolidated instrumentation data package covering weeks 1-10 with anomaly annotations.
- Instrumentation and telemetry validation
- Status of remediation and open nonconformances
- Compare measured spillway discharge performance to design
- Warranty claim and maintenance performance review
- Maintenance and staging window planning
- Verification and calibration checks
- O&M plan and governance cadence update
- Root-cause analysis for any metric gaps
- Site walk and immediate observations
- Open issues and enhancement backlog
- Regulatory reporting and permit condition check
- Regulatory engagement and acceptance evidence
- Open defects and safety issues
- Regulatory reporting and permit compliance
- Lessons learned and risk register update
- Contingency triggers and escalation paths
- Agree corrective plan and timeline
- Archive and data retention confirmation
- Closure or extension decision and next steps
- Agree immediate remediation actions