Acorn Engineering, Inc.

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Overview

$1,000+

Min Project Size

$50 - $99/hr

Avg Hourly Rate

10 - 49

Employees

2007

Year Founded

ABOUT ACORN ENGINEERING, INC.

Helping our clients from seed to site

Acorn is a fully employee-owned civil engineering, surveying, and landscape architecture firm located in Maine. The company focuses on urban redevelopment, civil and site design, environmental services, municipal consulting, and construction management. Their expertise includes building highway, marine, and rail facilities, rehabilitating urban impaired watersheds, designing and retrofitting stormwater systems, implementing low impact development (LID) practices, and promoting environmental stewardship. At Acorn, we pride ourselves on providing thorough and affordable solutions tailored to our clients' specific challenges.

Languages Spoken

English

HIGHLIGHTS

$1,000+

Min Project Size

$50 - $99/hr

Avg Hourly Rate

10 - 49

Employees

2007

Year Founded

Services

Focus

Industries

Clients

Services Provided

59% Engineering Services

15% Landscaping Services

15% Environmental Consulting

11% Construction Management

About the Team

OUR STORY

Our Narrative As an employee-owned company, Acorn is dedicated to providing outstanding services in land surveying, landscape architecture, civil engineering, and professional construction inspection, all grounded in humility, integrity, and a spirit of collaboration. From initial concept to final site completion, we offer practical, appropriately scaled, and sustainable solutions that enhance our workforce, our methodologies, and the communities we support.

TEAM PHOTOS

Portfolio

Chaplins Mill Road Crossing

Unknown

Acorn delivered civil design and permitting services for a stream crossing at the Muddy River on Chaplins Mill Road in Naples, Maine. Completing this design successfully and on schedule was essential, as Chaplins Mill Road has experienced frequent flooding in recent years. The existing culvert, an inadequate 8-foot corrugated metal pipe, was deteriorating, leading to visible road surface deformation, shoulder erosion, and a deep scour pool at the outlet. Guided by Stream Smart principles, the design aimed to restore the hydrology, hydraulics, and fluvial geomorphology of the stream to conditions close to what they were before development, ensuring safe and uninterrupted passage for aquatic life and water below and for vehicles and pedestrians above. The final design featured a 19-foot wide precast clamshell concrete box culvert that was embedded and appropriately sized to handle a 100-year storm flow, accommodate floating debris, and span 1.2 times the bankfull width. The embedment material inside the culvert was selected to mimic the surrounding native channel substrate. This new crossing restores the horizontal and vertical alignment of the stream profile to predevelopment conditions, enhancing hydraulic connectivity and facilitating the movement of aquatic organisms along the stream corridor. Additionally, its increased flow capacity will bolster the resilience of the crossing against future storm events.

Montville Gravel Road Assessment

Unknown

The town of Montville, Maine has chosen Acorn Engineering to aid in assessing and developing a management plan for its 36 miles of gravel and dirt roads. Aiming to improve resilience against worsening storm events, Acorn will assist the town in making well-informed choices about investing in this vital infrastructure that is essential to the town's character, ensuring it remains functional for years ahead.

Long Creek South Branch

Unknown

In collaboration with the Long Creek Watershed Management District (LCWMD), Acorn provided civil engineering, permitting, and construction oversight for stormwater Best Management Practice (BMP) retrofits in a 48-acre urbanized area of the Long Creek watershed. The main goal of the project was to introduce effective stormwater BMPs to improve the performance of existing systems and mitigate water quality issues such as elevated temperature, dissolved oxygen, chlorides, nutrient levels, metal concentrations, and runoff volume. Acorn's design included a gravel wetland BMP to manage and retain a significant portion of the stormwater runoff from the Maine Mall, along with a modular wetland system for a smaller subcatchment area. The project also offered the additional advantage of eliminating non-native and invasive plant species that currently dominate the stormwater detention area.

4 more projects

Projects & Clients

Project Size & Rate

Minimum Project Size

$1,000+

Average Hourly Rate

$50 - $99/hr

Pricing Snapshot

Min Project Size

$1,000+

Avg Hourly Rate

$50 - $99/hr

Cost Rating

N/A

What Clients Have Said

"Acorn Engineering, Inc. delivers quality projects within budget and timeline expectations based on verified client feedback."

Based on verified reviews and internal benchmark data

PROJECT BUDGETS

No budget data yet. Reviewers either haven't shared a project budget or kept theirs confidential.

Select a service

Engineering Services

Landscaping Services

Environmental Consulting

Construction Management

Locations

Headquarters

16 Middle Street

Portland, Oregon, United States 04101

Headquarters

329 Main Street United States 04947

Headquarters

499 Broadway United States 04401

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