Maplewood Avenue Bridge Rehabilitation
Portsmouth, NH · Historic Structures · 2026
Project details
Rehabilitation of a historic bridge in Portsmouth, NH. Earned a Silver Award in the ACEC NH Engineering Excellence Awards 2026.

Trusted Experts | Innovative Results
Hoyle Tanner is a New England-headquartered multi-discipline civil engineering firm founded in 1973 that has completed nearly 13,000 projects for municipal, state, federal, and private clients. It provides planning and engineering services across aviation, bridges, roadways, drinking water, wastewater, stormwater, civil site development, and traffic. With seven offices spanning New Hampshire, Massachusetts, Vermont, Maine, and Florida, Hoyle Tanner operates as an extension of its clients' staff, emphasizing listening, flexibility, and grant assistance alongside technical delivery.
Planning and engineering for airport clients, addressing safety and security requirements, design challenges, funding procedures, and time-sensitive needs.
Full-lifecycle bridge services: regulations, budgeting, safety inspections, design, construction, and ongoing maintenance for new and rehabilitated bridge projects.
Site engineering for municipalities, private developers, colleges and universities, resorts and hotels, solar energy investors, and other clients.
Full-service roadway design from initial concept through conception completion, serving as an extension of the client's staff across the entire project lifecycle.
Water quality planning, hydraulic assessment, and design initiatives to meet the complex regulations of the drinking water industry.
Collection system, pump station, and treatment facility expansions and rehabilitations for wastewater collection and treatment projects.
Professional stormwater management services for public and private clients to meet stormwater management objectives and regulatory requirements.
Analysis and design for safe pedestrian and vehicle circulation while meeting environmental and accessibility concerns.
Funding assistance, asset inventory, and risk assessment to help communities and agencies develop future capital planning strategies.
Construction project administration, field observation, and technical services delivered by safety-certified construction professionals.
Supporting services including environmental permitting, grant assistance, drone/SUAS data collection, parking facility engineering, and public outreach.
Airports · Aviation · Government · Federal · Utilities · Water Supply · Education · Land Development · Solar · Hospitality · Historic Preservation
Portsmouth, NH · Historic Structures · 2026
Rehabilitation of a historic bridge in Portsmouth, NH. Earned a Silver Award in the ACEC NH Engineering Excellence Awards 2026.
New Hampshire · Private Development · 2026
Roadway reconstruction, roadside swale reconstruction, repaving, and landscaping upgrades for a mountain condo community near Loon Ski Resort.