What ASI Constructors does

ASI Construction LLC is a self-performing, heavy-civil contractor specializing in the construction and rehabilitation of dams, hydroelectric and renewable energy facilities, pipelines, and other major water resource projects. The firm is a wholly-owned subsidiary of Shaft Drillers International LLC (SDI), which acquired substantially all assets of predecessor ASI Constructors, Inc. in Pueblo, Colorado on March 27, 2017 and retained approximately 300 operational professionals. ASI's core service portfolio covers new dam construction (including roller-compacted concrete, earthfill, and conventional concrete dams), dam rehabilitation, spillways and hydraulic structures, water transmission, and specialty solutions such as tunnels, environmental remediation, and tailings dams. The firm operates from corporate offices in Mt. Morris, Pennsylvania and Pueblo West, Colorado, with permanent equipment maintenance facilities in Statesville, North Carolina and Pueblo West, Colorado.

The company's underlying technical capability centers on roller-compacted concrete (RCC) dam construction — including specialized equipment for RCC production, placement, and temperature control — and a pioneering role in design-build delivery for public dam owners, beginning with the Pine Brook Dam in Boulder, Colorado. ASI has built over 40 new dams and completed 118 rehabilitation projects, including the Taum Sauk Dam (3.25 million cubic yards of RCC, the largest RCC dam in the United States). The firm self-performs more than 80% of contracted work in-house across earthwork, rock excavation and blasting, aggregate production, dewatering, concrete production and placement, structural steel erection, pipelines, and hydraulic gate and valve systems. Complementing construction, ASI offers Design-Build Services, Consulting Services (constructability reviews, value engineering, cost estimating), and Equipment Supply Services that rent specialty equipment to other contractors.

Revenue is generated through project-based contracts awarded predominantly via competitive bidding. Individual project values range from approximately $4.5 million to $450 million, with primary customers including US Army Corps of Engineers, US Bureau of Reclamation, NRCS, US Fish & Wildlife Service, state and municipal agencies, water/irrigation/flood control districts, power producers and utilities, mine owners, and private water resource owners. Operations span 27 US states and international projects across five continents (including Australia and Lebanon). The firm has earned three US Society on Dams Awards of Excellence (2007, 2010, 2013) and four ASDSO National Rehabilitation Project of the Year awards.

Name

ASI Constructors

Legal name

ASI Construction LLC

Website

https://asidams.com

Company type

Private

Founded year

2005

Operating status

Operating

Headcount range

251–500 employees

Short description

ASI Construction LLC is a self-performing heavy-civil contractor that builds and rehabilitates dams, hydroelectric facilities, and water resource infrastructure, serving federal, state, and municipal agencies plus private utilities across 27 US states and 5 continents.

Ownership category

akta.pro rank

Product category

Heavy Civil Dam Construction

NAICS

Heavy and Civil Engineering Construction (237), Utility System Construction (2371), Water and Sewer Line and Related Structures Construction (237110)

SIC

Heavy Construction Other Than Bldg Const - Contractors (1600), Water, Sewer, Pipeline, Comm & Power Line Construction (1623)

akta.pro primary industry

Storage & Conveyance Structures (Reservoirs, Tanks, Culverts, Tunnels) (IMAFAGAE)

akta.pro secondary industries

Water & Wastewater Pipeline Construction (Mains, Force Mains, Interceptors) (IMAFAGAC), Stormwater & Drainage Infrastructure Construction (Sewer, Detention, Outfalls) (IMAFAGAF)

Keywords

• Heavy civil construction
• Dam construction services
• Dam rehabilitation services
• Water infrastructure construction
• Roller compacted concrete

Headquarters

HQ city

Colorado Springs

HQ country

United States

HQ region

North America

Offices4 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Infrastructure, Supply Chain, Marketing or Sales

Revenue model

1. Dam Construction Services: Construction of new dams including RCC, earthfill, and conventional concrete dams. Projects range from $4.5 million to $450 million. Revenue is project-based, earned through competitive bidding on government and private sector contracts.
2. Dam Rehabilitation Services: Rehabilitation and modification of existing dams including spillway upgrades, outlet works, gate and valve installation, and structural modifications. The largest market segment within water resources construction.
3. Design-Build Services: Integrated design and construction services allowing early contractor involvement in project planning. Growing rapidly as a project delivery method.
4. Consulting Services: Expert consulting services including construction technologies, constructability reviews, value engineering studies, cost estimates, material suitability assessments.
5. Equipment Supply Services: Provides specialty equipment to contractors around the country and overseas for water resources projects.

Go-to-market motion1 record

Distribution channels4 records

Marketing channels8 records

Core offering

ASI Construction LLC is a self-performing heavy-civil contractor that builds and rehabilitates dams, hydroelectric and renewable energy facilities, pipelines, spillways, and other major water resource projects. The firm specializes in roller-compacted concrete (RCC) dam construction and offers new dam construction, dam rehabilitation, specialty solutions (tunnels, rockfill, earthfill, tailings, and concrete-faced rockfill dams), spillways and hydraulic structures, water transmission, and complementary design-build, consulting, and equipment supply services.

Product overview

ASI Construction LLC is a self-performing heavy-civil contractor offering a unified suite of dam and water resource construction services. The core portfolio includes New Dam Construction, Dam Rehabilitation, Roller Compacted Concrete (RCC) construction, Specialty Solutions (tunnels, spillways, environmental remediation), Spillways & Hydraulic Structures, and Water Transmission. These services are complemented by Design-Build Services, Consulting Services, and Equipment Supply Services. The company specializes in RCC, earthfill, and conventional concrete dam construction and has completed over 185 dam and water resource projects including 40 new dams and 118 dam rehabilitation projects.

Differentiator

Problem solved

Functional benefit

Products and services

• New Dam Construction Construction of new dams, including RCC, earthfill, and conventional concrete dams, for federal, state, municipal, district, and private clients. ASI has constructed over 40 new dams ranging in size from the $4.5 million Pine Brook Dam to the $450 million Taum Sauk Project.
• Dam Rehabilitation Rehabilitation services for existing dams including repairs, modifications, safety upgrades, spillway modernization, and structural rehabilitation. The largest market segment within water resources construction, with 118 dam rehabilitation projects completed by ASI personnel.
• Roller Compacted Concrete (RCC) Construction Specialized roller-compacted concrete dam construction services offering cost-effective solutions for concrete dam construction with rapid placement capabilities. ASI has completed over 40 new RCC dams including the largest RCC dam in the United States (Taum Sauk Dam).
• Specialty Solutions Additional specialized construction services including tunnels, environmental remediation, rockfill dam construction, earthfill dam construction, tailings dam construction, concrete-faced rockfill dams, heavy gate and valve installation, and foundation grouting.
• Spillways and Hydraulic Structures Construction and rehabilitation of spillways, fixed crest spillways, concrete structures, training walls, and hydraulic, electric, and manually actuated gates and valves for dam and water resource projects.
• Water Transmission Water pipeline and buried infrastructure construction services including installation, maintenance, and rehabilitation of water distribution systems for municipal, district, and private water resource owners.
• Design-Build Services Integrated design-build project delivery with early contractor involvement, allowing ASI to influence design elements early in the process to reduce overall project costs. Pioneered for dam construction with the first true dam design-build project at Pine Brook Dam.
• Consulting Services Expert consulting services covering construction technologies, constructability reviews, value engineering studies, cost estimates, and material suitability assessments for dam and water resource project owners and engineering partners.
• Equipment Supply Services Provision of specialty construction equipment including cranes, portable concrete plants, underground equipment, and site support equipment for dam and water resource projects, supplied to contractors domestically and overseas.

Quantifiable outcome

• Largest RCC dam in United States - Taum Sauk Dam with 3.25 million cubic yards of RCC
• +3 more outcomes

Named customers10 records

Segments6 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

One partnership is on record.

• Shaft Drillers International LLC (SDI)flagship/parentOthers · 27 March 2017ASI Construction LLC is a wholly-owned subsidiary of Shaft Drillers International LLC (SDI). On March 27, 2017, ASI completed an acquisition transaction with ASI Constructors, Inc., purchasing substantially all equipment and hiring approximately 300 professionals. SDI is a global solutions provider offering technical innovation and solutions for specialized construction.

Scale indicators10 records

Recent moves5 records

Expansion highlights5 records

Direct peers

• Ames Construction: Private heavy-civil contractor with significant dam, water resource, and mining infrastructure experience. Comparable in scale, self-perform orientation, and project types (earthfill, RCC dams, spillways).
• J.F. Brennan Company: Marine and heavy-civil contractor with dam construction, rehabilitation, and underwater/diverted-water work. Overlaps with ASI on dam rehabilitation and federal water infrastructure projects.
• Veit & Company: Specialty heavy-civil and environmental contractor with dam construction, dewatering, and water resource capabilities. Comparable specialty contractor profile with self-perform culture similar to ASI.
• Barnard Construction Company: Self-performing heavy-civil contractor with deep dam construction and rehabilitation experience. Directly comparable to ASI in RCC dam capability, federal agency relationships (USACE, USBR), and project scale across the Western US.
• Brayman Construction Corporation: Heavy-civil contractor specializing in dam construction, rehabilitation, deep foundations, and marine work. Highly comparable niche focus, federal agency client base, and self-perform model to ASI.
• Phillips & Jordan: Heavy-civil contractor with water resources, dam, and infrastructure experience. Comparable scale, self-perform model, and federal/state agency bidding profile.

Broad incumbents

• Kiewit Infrastructure Co. One of North America's largest heavy-civil and infrastructure contractors. Competes with ASI on large dam and water resource projects as part of a much broader portfolio across transportation, energy, and water infrastructure.
• Granite Construction: Diversified heavy-civil contractor with significant water resources and dam-related work. Overlaps with ASI on federal water infrastructure bids, though Granite operates a much broader transportation and materials business.
• AECOM: Global engineering and construction services firm with major water infrastructure practice. Competes with ASI for design-build dam work and federal water contracts, though AECOM also acts as an engineering partner in some ASI pursuits.

Others

• Shaft Drillers International (SDI): ASI's parent company and global specialty construction solutions provider. Relevant as the controlling shareholder and a related entity, though SDI's broader portfolio (drilled shafts, ground improvement) only partially overlaps with ASI's dam focus.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about ASI Constructors