Sewer Construction Crews
Foreman-led sewer construction crews deployed under subcontract for gravity main, force main, manhole, and service lateral projects across Maryland, Virginia, Washington DC, Delaware, and Pennsylvania. OSHA 10/30 trained field teams with integrated traffic control coordination when your project runs through active road corridors.
Have plans, specs, or a bid package? Include them with your crew availability request for faster scoping.
Subcontract-Ready · Permit-Ready Submittals · Gravity Sewer & Force Main · Manhole Construction · Traffic Control Integration Available
Sanitary Sewer Construction Subcontractor Capabilities
LADMA deploys foreman-led sewer construction crews for utility contractors and municipal project teams across the Mid-Atlantic. Our sewer main installation crews support WSSC, DC Water, and county DPW-governed gravity sewer and force main projects in Maryland, Northern Virginia, and the District. Crews also deploy for manhole construction, sewer rehabilitation, and service lateral work across all five coverage states. Each crew includes a foreman, pipe layers, and equipment operators configured for the specific project scope. See all crew categories in our Infrastructure Labor hub.
Sanitary Sewer Main Installation
Crew deployment for new gravity sanitary sewer main installation in public right-of-way and private development. Experienced with PVC (SDR 26/SDR 35), ductile iron, and reinforced concrete pipe installation, including bedding, backfill, and grade control for gravity flow requirements. Crews coordinate with municipal inspection schedules and utility authority hold points throughout installation.
Sewer Main Replacement & Rehabilitation
Crews for open-cut sewer main replacement on municipal rehabilitation programs. Familiar with the operational demands of replacing deteriorated sewer infrastructure in active roadway corridors, including bypass pumping coordination, flow management during construction, and connection to existing live systems. CIPP lining support crews are also available for trenchless rehabilitation projects following NASSCO pipeline assessment and rehabilitation standards.
Manhole Construction & Rehabilitation
Crews experienced in precast and cast-in-place manhole construction, manhole rehabilitation, bench and invert work, and frame and cover adjustment. Familiar with the grading, sealing, and testing requirements that utility authorities and municipal DPW agencies require for manhole acceptance on public sewer systems.
Service Lateral Installation & Tie-Ins
Crews for residential and commercial sewer service lateral installation, including new connections to existing mains, lateral replacement, cleanout installation, and reconnection work on sewer main replacement projects. Familiar with jurisdiction-specific requirements for service connection permits and inspections across Maryland, Virginia, and DC.
Force Main & Pump Station Support
Crew support for force main pipe installation and pump station site work where sanitary sewer systems require pressurized conveyance. Experienced with ductile iron and HDPE force main installation, including restrained joint assembly, thrust restraint, and pressure testing procedures required before system activation.
Emergency Sewer Repair
Crew mobilization for emergency sewer main failures, collapsed pipe sections, and sewer blockage excavation. When emergency sewer work occurs on state or county roadways, LADMA's traffic control plan and flagging crew capabilities can be mobilized concurrently under a single subcontract.
Pipe Materials & Installation Experience
Sewer construction in the Mid-Atlantic region involves multiple pipe materials and installation methods depending on the utility authority, pipe diameter, depth, and whether the system operates by gravity or pressure. LADMA crews are experienced across the material types and construction methods common to Mid-Atlantic sanitary sewer projects.
PVC sewer pipe (SDR 26 and SDR 35) is commonly specified on gravity sanitary sewer projects in the WSSC and DC Water service areas, as well as most Maryland and Virginia county jurisdictions. LADMA crews are experienced with PVC gravity sewer installation from 4-inch service laterals through 15-inch collector mains, including proper bedding, haunching, and initial backfill procedures that protect pipe integrity and maintain designed grade.
Ductile iron pipe (DIP) is specified on force main installations, crossings, and applications where higher pressure ratings or structural loading conditions require a more robust pipe material. Crews are familiar with mechanical joint, push-on, and restrained joint configurations for sewer force main applications.
Reinforced concrete pipe (RCP) appears on larger-diameter trunk sewer and interceptor projects, typically 18-inch and above. Crew experience includes handling, bedding, and joint assembly for RCP installations where the pipe weight and trench depth create operational conditions that differ significantly from smaller-diameter PVC work.
- PVC Gravity Sewer (SDR 26/SDR 35) 4" through 15" gravity applications. Gasketed bell-and-spigot joints. Bedding and backfill per applicable WSSC, DC Water, and county project specifications.
- Ductile Iron Pipe (DIP) Force main applications, crossings, and structural loading conditions. Mechanical, push-on, and restrained joint configurations.
- Reinforced Concrete Pipe (RCP) Trunk sewer and interceptor applications, 18" and above. Tongue-and-groove and bell-and-spigot joints.
- HDPE (Force Main & Directional Drill) Butt fusion and electrofusion jointing for pressurized sewer and trenchless crossing applications.
- Manholes & Structures Precast concrete manholes, cast-in-place structures, bench and invert work, frame and cover adjustment, chimney seal installation.
Utility Authority & Jurisdiction Experience
Sanitary sewer construction in the Mid-Atlantic operates under the standards, inspection protocols, and acceptance testing requirements of multiple utility authorities and DOT jurisdictions. Our sewer pipe crews support urban corridor sewer work across DC and Northern Virginia, while our sewer rehabilitation subcontractor operations assist municipal renewal programs throughout Maryland, Virginia, and the District. LADMA crews have field experience working within the following frameworks.
Maryland: WSSC, MDOT SHA & County DPW
WSSC governs sanitary sewer construction across Montgomery and Prince George's counties, maintaining specific inspection hold points for bedding, backfill, manhole construction, service connections, and mandrel/air testing before system acceptance. LADMA crews are experienced working within WSSC's construction standards and inspection sequencing requirements for gravity sewer projects.
For sewer projects that require excavation within MDOT SHA right-of-way, lane closure permits and traffic control plans are required before work begins. LADMA's traffic control division handles TCP design and permit coordination in parallel with sewer crew scheduling. Maryland traffic control services →
Virginia: Fairfax County, VDOT & Local Authorities
Northern Virginia sanitary sewer projects operate under Fairfax County Department of Public Works and Environmental Services (DPWES), Prince William County Service Authority, Loudoun Water, and various city-operated sewer utilities. Each authority maintains its own construction standards, inspection schedules, and testing requirements. LADMA crews adapt to the governing authority's specifications on each project.
Where sewer construction occurs within VDOT-maintained roadways, the Virginia Work Area Protection Manual (WAPM) governs traffic control requirements. LADMA can coordinate Virginia traffic control operations alongside sewer crew deployment.
Washington DC: DC Water & DDOT
DC Water manages the District's sanitary and combined sewer systems, including ongoing system rehabilitation and combined sewer separation work. LADMA crews are experienced working within DC Water's construction standards and the operational constraints of sewer work in dense urban corridors with limited staging area, high pedestrian traffic, and complex existing utility conflicts.
All sewer work requiring street excavation in DC requires DDOT public space permits. LADMA's traffic control division can manage DC traffic control permitting and work zone operations as part of the same project engagement.
Delaware: DelDOT & New Castle County
Northern Delaware sewer projects operate under New Castle County sewer utility, the City of Wilmington, and other local authorities. LADMA crews deploy to Delaware sewer projects with the same operational structure used across our Maryland and Virginia coverage area: foreman-led, OSHA 10/30 trained, and subcontract-ready.
For projects within DelDOT right-of-way, Delaware traffic control services are available through LADMA's traffic control division.
Southern Pennsylvania: Municipal Systems & PennDOT
LADMA's southern Pennsylvania coverage extends into York, Adams, Franklin, and Cumberland counties where municipal sewer authorities and county agencies manage sanitary sewer infrastructure. Crew deployment to southern PA projects is available based on scope, scheduling, and lead time.
Where sewer work occurs within PennDOT-maintained roadways, Highway Occupancy Permits and traffic control coordination are required per PennDOT Publication 213.
Sewer Work in DOT Right-of-Way? We Handle Both Scopes.
When your sewer project runs through a state highway corridor or county-maintained roadway, you need two simultaneous subcontract scopes: a compliant work zone with lane closure permits, flagging, and traffic control plan documentation, and a pipe crew that can excavate, install, and test within that closure window.
Sewer construction creates unique traffic control challenges compared to water main work. Deeper trench depths require wider excavation footprints and longer lane closure durations. Gravity sewer grade requirements mean the pipe crew cannot skip sections or work out of sequence, which makes the coordination between the lane closure schedule and the pipe installation sequence especially critical.
LADMA's traffic control division handles TCP design and permitting, our flagging crews manage work zone operations, and our sewer construction crews execute the underground work. All three scopes are coordinated internally, which means your superintendent has one subcontractor contact managing both the work zone and the underground operation.
- Traffic control plan design for sewer corridors
- Lane closure permit coordination support (MDOT SHA, VDOT, DDOT, DelDOT, PennDOT)
- Flagging crew deployment for active sewer excavation zones
- Sanitary sewer main installation and replacement crews
- Manhole construction and rehabilitation
- Equipment operators for deep trench excavation and controlled backfill
- Foreman supervision across both TCP and pipe scopes
- Single point of coordination, with both scopes available under one agreement when requested
- Daily documentation for both scopes, client-accessible
Representative Project Profile
Representative Example. For Scope Illustration Only. Not a Published Project Case Study.
Projects of this type require a crew that understands both the grade-critical nature of gravity sewer installation and the coordination demands of working within an active residential street. The lane closure schedule directly affects daily production. When the traffic control setup and the pipe crew are managed by the same subcontractor, the daily closure window is maximized and scheduling conflicts between the work zone and the excavation are eliminated.
Crew Structure & Compliance Posture
LADMA's sewer construction crews operate as a subcontract field operation, not a temp labor placement. You issue a subcontract to LADMA. We supply the foreman, pipe layers, equipment operators, and laborers configured for your sewer project scope. Our foreman manages daily crew operations, safety documentation, and GC coordination. Your superintendent manages the subcontract relationship, not the individual workers.
All sewer crew personnel carry current OSHA 10-Hour or OSHA 30-Hour training credentials appropriate to their role. Foremen conduct daily pre-shift safety briefings tailored to the specific site conditions and hazards of that day's work, including trench depth, soil conditions, shoring requirements, confined space considerations, and traffic proximity. All trench operations follow OSHA's trenching and excavation safety standards. Safety documentation is maintained for every deployment and is available for subcontractor qualification review by your project management or safety department.
For projects requiring subcontractor prequalification documentation (common on WSSC, DC Water, and municipal DPW contracts), LADMA provides insurance certificates, safety program documentation, OSHA training records, and corporate safety metrics upon request. Our operations are structured to meet the subcontractor qualification thresholds that public works prime contracts require.
How Sewer Crew Engagements Work
- Subcontract agreement executed between your firm and LADMA covering crew scope, duration, and project terms (prequalification documentation available upon request for projects requiring subcontractor vetting)
- Foreman assigned and crew composition confirmed based on your sewer project scope, pipe material, and trench depth requirements
- Daily field reporting, pre-shift safety briefings, and inspection coordination managed by LADMA's foreman
- Traffic control scope (if required) coordinated in parallel by LADMA's traffic control division under the same agreement
- Change orders and schedule adjustments handled through standard subcontract process with your project superintendent
What We Do and How We Work
LADMA supports sanitary sewer construction scopes: new main installation, main replacement, manhole construction and rehabilitation, service lateral connections, force main installation, CIPP lining support, and emergency sewer repair response. Crews deploy as foreman-led subcontract teams under a formal agreement with your organization.
We do not provide labor-only placements, individual worker assignments, or payroll-only arrangements. Every deployment includes field supervision, safety documentation, and crew management handled internally by LADMA.
This structure is designed to meet subcontractor qualification requirements on public works, utility authority, and municipal DPW contracts. Crew availability depends on scope and start date. Early notice helps secure preferred scheduling windows.
Frequently Asked Questions
What types of sewer construction work do LADMA crews handle?
LADMA deploys foreman-led crews for sanitary sewer main installation and replacement, manhole construction and rehabilitation, service lateral installation and reconnection, force main pipe installation, CIPP lining support, and emergency sewer repair. Crews are experienced with PVC gravity sewer (SDR 26/SDR 35), ductile iron force main, reinforced concrete pipe, and HDPE for trenchless and pressurized applications. All deployments are structured as subcontract operations with field supervision, daily reporting, and inspection coordination included.
What is included in a LADMA sewer crew deployment?
A typical sewer crew deployment includes a utility foreman, pipe layers, equipment operator, and general laborer, configured for the specific project scope and trench depth requirements. The foreman manages daily crew operations, conducts pre-shift safety briefings covering trench safety and confined space awareness, coordinates with your GC superintendent, and handles inspection readiness and field documentation. All personnel carry current OSHA 10-Hour or OSHA 30-Hour training credentials. Crews deploy under a subcontract agreement. You manage the subcontract relationship with LADMA, not the individual crew members.
Can LADMA provide traffic control for sewer projects in DOT right-of-way?
Yes. This is one of LADMA's primary competitive differentiators. When your sewer project requires lane closures, flagging operations, or traffic control plans within state or county right-of-way, LADMA's traffic control division handles TCP design and permitting while our infrastructure labor division supplies the sewer crew. Both scopes are managed under a single subcontract agreement with internal coordination, eliminating the scheduling conflicts that occur when your work zone and your pipe crew are managed by separate subcontractors. Sewer work often requires deeper excavation and wider lane closure footprints than water main work, making this coordination especially critical for maintaining daily production.
Which utility authority inspection protocols are your sewer crews experienced with?
LADMA sewer crews have field experience working within the inspection protocols and construction standards of WSSC (Montgomery and Prince George's counties, Maryland), DC Water (District of Columbia), Fairfax County DPWES and Prince William County Service Authority (Virginia), New Castle County (Delaware), and various municipal DPW operations across the Mid-Atlantic. Each utility authority maintains its own inspection hold points, testing requirements, and acceptance procedures. Our foremen are familiar with these protocols and manage crew operations to maintain compliance with the governing authority's requirements on each project.
What information do you need to quote a sewer crew deployment?
To provide a crew availability discussion and scope-based quote, we need: project location and governing jurisdiction (county, utility authority, and DOT if applicable), pipe material and diameter, approximate linear footage, manhole count and type, number of service lateral connections, estimated trench depth range, estimated project duration, and anticipated start date. If traffic control will be required for the project, include the road classification and lane closure type so our traffic control division can review that scope in parallel. Submit this through our crew availability request form or call (240) 861-5050 for time-sensitive projects.
How far in advance should we request sewer crew availability?
For planned sewer construction projects with a defined scope and start date, 2 to 4 weeks of lead time is typical for crew scheduling and subcontract execution. Larger sewer replacement or multi-phase utility programs benefit from earlier coordination so crew structure aligns with inspection sequencing and project phasing. Emergency sewer repair mobilization can sometimes occur on shorter timelines depending on current crew availability. Contact our team with your project scope and anticipated start date, and we will confirm current scheduling options.
Need Sewer Construction Crews for Your Next Project?
Tell us your project scope, location, and start date. We'll confirm crew availability and discuss how LADMA can support your sewer project, including traffic control coordination if your work runs through DOT right-of-way.
Subcontract agreements · Time-and-material · Project-based engagements · Multi-state deployment: MD, VA, DC, DE & PA
What to Include in Your Request
Project location & jurisdiction · Pipe material & diameter · Approximate linear footage · Manhole count · Service connection count · Estimated trench depth · Bypass pumping requirements (if applicable) · Anticipated start date · Traffic control needed (yes/no)
Typical response time: 1 business day for crew availability requests.