Gov. Ned Lamont has formally submitted a request to President Joe Biden seeking a major disaster declaration after historic flooding that impacted Connecticut last month.

The governor’s office said the request comes after towns in Fairfield, Litchfield and New Haven counties sustained massive damage after severe flooding on Aug. 18.

In the weeks after the flooding, the Federal Emergency Management Agency, or FEMA, conducted a tour of damage in areas hit hard by the storms.

The major disaster declaration which would unlock funding sources specifically for home and business owners.

In his request, Lamont specifically requested approval of the Individual Assistance Program, which reimburses homeowners and businesses for some of the costs of repairing damage to uninsured private property.

The governor also requested funds through the Public Assistance Program, which reimburses state and local governments for some of the eligible costs of repairing damage to public property, including local roads, bridges, rail lines, critical infrastructure sites, schools, parks and other facilities.

In additional to these programs, Lamont also requested the implementation of FEMA’s Hazard Mitigation Grant Program, which helps state agencies and local governments take actions that can reduce or eliminate long-term risk to people and property from natural disasters.

Detailed assessments to document damages typically take several weeks to complete in order to calculate whether damage to infrastructure surpasses the required federal threshold. Lamont and his administration started the process immediately after the flooding, according to the governor’s office.

“People who live in the communities impacted by this historic storm are shaken as many of them have experienced significant damage to their homes and businesses and need support to rebuild and recover,” Lamont said. “My administration continues to work with the impacted areas to take the steps we need to ensure a speedy and full recovery.”

In his letter to Biden, Lamont notes that the FEMA preliminary damage assessment determined that the storm destroyed 19 homes.

Additionally, 170 homes suffered major damage, with an additional 133 homes deemed inaccessible, and 615 homes were found to have suffered minor damage per FEMA guidelines, with an additional 1,049 homes affected, the letter states.

The Small Business Administration’s preliminary damage assessment found that 77 businesses suffered major damages and 51 businesses received minor damages.

Connecticut Congressional delegation wrote to the president, asking him to grant the major disaster declaration.

“As the Governor’s disaster declaration request makes clear, the state and affected counties can demonstrate that they meet or exceed cost threshold requirements for a disaster declaration. We therefore urge you to swiftly grant Connecticut’s major disaster declaration request in order to help our state recoup losses and carry out the process of recovering,” the delegation wrote.

Parts of Route 15 will be getting new larger signs and new exit numbers starting on Monday.

The Connecticut Department of Transportation said it will also replace sign supports.

This is happening on Route 15 in Stamford, Greenwich, New Canaan, Milford, Orange, Woodbridge, New Haven, Hamden, North Haven, Wallingford and Meriden.

This project is scheduled to start on Monday, Sept. 9 and continue into 2026.

The state Department of Transportation said the existing signs are damaged or don’t meet the Manual on Uniform Traffic Control Devices standards, which require larger signs, and new sign supports are needed as well.

The exit numbers will also change from sequential numbering to mileage-based numbering to meet federal standards.

The project will cost nearly $7.5 million, according to the state Department of Transportation.

Lane closures and detours

There will be lane closures on Route 15. Here is what you need to know about where and when:

Route 15 North – Greenwich (New York state line) to exit 28 off-ramp

• 6 p.m. to 6 a.m. (Monday-Wednesday)
• 6 p.m. to 3 a.m. (Thursday-Saturday)
• 5 p.m. to 6 a.m. (Sunday)

Route 15 South (Greenwich) exit 28 on-ramp to the New York state line

• 6 p.m. to 5 a.m. (Monday-Thursday)
• 6 p.m. to 6 a.m. (Friday)
• 6 p.m. to 7 a.m. (Saturday)
• 7 p.m. to 5 a.m. (Sunday)

Route 15 North (Greenwich) exit 28 off-ramp to Stamford city line

• 6 p.m. to 6 a.m. (Monday-Tuesday)
• 6 p.m. to 3 a.m. (Wednesday-Friday)
• 7 p.m. to 3 a.m. (Saturday)
• 5 p.m. to 6 a.m. (Sunday)

Route 15 South (Greenwich) Stamford city line to exit 28 on-ramp

• 6 p.m. to 3 a.m. (Monday–Wednesday)
• 6 p.m. to 4 a.m. (Thursday-Friday)
• 4 p.m. to 4 a.m. (Saturday)
• 5 p.m. to 3 a.m. (Sunday)

Route 15 North Stamford city line to exit 35 on-ramp

• 8 p.m. to 6 a.m. (Monday–Tuesday)
• 8 p.m. to 3 a.m. (Wednesday)
• 6 p.m. to 3 a.m. (Thursday-Saturday)
• 5 p.m. to 6 a.m. (Sunday)

Route 15 South (Stamford) exit 35 on-ramp to Stamford city line

• 6 p.m. to 4 a.m. (Monday–Thursday)
• 6 p.m. to 6 a.m. (Friday)
• 5 p.m. to 6 a.m. (Saturday)
• 5 p.m. to 4 a.m. (Sunday)

Route 15 North (Stamford-Norwalk) exit 35 on-ramp to exit 39B off-ramp

• 6 p.m. to 6 a.m. (Monday–Wednesday)
• 6 p.m. to 2 a.m. (Thursday-Saturday)
• 5 p.m. to 6 a.m. (Sunday)

Route 15 South (Norwalk-Stamford) exit 39B on-ramp to exit 35 on-ramp

• 7 p.m. to 5 a.m. (Monday–Thursday)
• 7 p.m. to 6 a.m. (Friday)
• 7 p.m. to 8 a.m. (Saturday)
• 7 p.m. to 5 a.m. (Sunday)

Route 15 North (Norwalk-Westport) exit 39B off-ramp to exit 41 off-ramp

• 8 p.m. to 6 a.m. (Monday–Sunday)

Route 15 South (Westport-Norwalk) exit 41 on-ramp to exit 39B on-ramp

• 6 p.m. to 5 a.m. (Monday–Thursday)
• 6 p.m. to 6 a.m. (Friday)
• 5 p.m. to 7 a.m. (Saturday)
• 7 p.m. to 5 a.m. (Sunday)

Route 15 North (Westport-Fairfield) exit 41 off-ramp to exit 44 off-ramp

• 6 p.m. to 6 a.m. (Monday–Tuesday)
• 6 p.m. to 3 a.m. (Thursday-Saturday)
• 5 p.m. to 6 a.m. (Sunday)

Route 15 South (Fairfield-Westport) exit 44 on-ramp to exit 41 on-ramp

• 6 p.m. to 5 a.m. (Monday–Thursday)
• 6 p.m. to 6 a.m. (Friday)
• 5 p.m. to 8 a.m. (Saturday)
• 7 p.m. to 5 a.m. (Sunday)

Route 15 North (Fairfield-Trumbull) exit 44 off-ramp to exit 48 on-ramp

• 6 p.m. to 5 a.m. (Monday–Tuesday)
• 6 p.m. to 2 a.m. (Wednesday-Friday)
• 5 p.m. to 2 a.m. (Saturday)
• 4 p.m. to 5 a.m. (Sunday)

Route 15 South (Trumbull-Fairfield) exit 48 off-ramp to exit 44 on-ramp

• 6 p.m. to 2 a.m. (Monday–Thursday)
• 6 p.m. to 4 a.m. (Friday)
• 4 p.m. to 5 a.m. (Saturday)
• 5 p.m. to 2 a.m. (Sunday)

Route 15 North (Trumbull) exit 48 on-ramp to Stratford town line

• 8 p.m. to 6 a.m. (Monday–Tuesday)
• 8 p.m. to 4 a.m. (Wednesday-Saturday)
• 7 p.m. to 6 a.m. (Sunday)

Route 15 South (Trumbull) Stratford town line to exit 48 off-ramp

• 8 p.m. to 5 a.m. (Monday–Tuesday)
• 8 p.m. to 3 a.m. (Wednesday–Thursday)
• 8 p.m. to 5 a.m. (Friday-Sunday)

Route 15 North (Stratford – Milford) Stratford town line to exit 54 off-ramp

• 9 p.m. to 6 a.m. (Monday–Wednesday)
• 10 p.m. to 5 a.m. (Thursday)
• 10 p.m. to 7 a.m. (Friday)
• 10 p.m. to 8 a.m. (Saturday)
• 10 p.m. to 6 a.m. (Sunday)

Route 15 South (Milford – Stratford) exit 54 on-ramp to Stratford town line

• 9 p.m. to 6 a.m. (Monday–Thursday)
• 11 p.m. to 8 a.m. (Friday)
• 11 p.m. to 9 a.m. (Saturday)
• 11 p.m. to 6 a.m. (Sunday)

Route 15 North (Milford – New Haven) exit 54 off-ramp to exit 59 on-ramp

• 8 p.m. to 6 a.m. (Monday–Thursday)
• 11 p.m. to 7 a.m. (Friday)
• 11 p.m. to 9 a.m. (Saturday)
• 11 p.m. to 6 a.m. (Sunday)

Route 15 South (New Haven-Milford) exit 59 off-ramp to exit 54 on-ramp

• 9 p.m. to 6 a.m. (Monday–Thursday)
• 11 p.m. to 7 a.m. (Friday)
• 11 p.m. to 9 a.m. (Saturday)
• 11 p.m. to 6 a.m. (Sunday)

Route 15 North (New Haven–North Haven) exit 59 on-ramp to exit 63 off-ramp

• 8 p.m. to 6 a.m. (Monday–Wednesday)
• 9 p.m. to 6 a.m. (Thursday)
• 9 p.m. to 7 a.m. (Friday)
• 11 p.m. to 9 a.m. (Saturday)
• 11 p.m. to 6 a.m. (Sunday)

Route 15 South (North Haven – New Haven) exit 63 on-ramp to exit 59 off-ramp

• 9 p.m. to 6 a.m. (Monday–Thursday)
• 10 p.m. to 7 a.m. (Friday)
• 10 p.m. to 9 a.m. (Saturday)
• 10 p.m. to 6 a.m. (Sunday)

Route 15 North (North Haven-Wallingford) exit 63 off-ramp to Meriden town line

• 8 p.m. to 6 a.m. (Monday–Thursday)
• 8 p.m. to 7 a.m. (Friday)
• 11 p.m. to 9 a.m. (Saturday)
• 11 p.m. to 6 a.m. (Sunday)

Route 15 South (Wallingford-North Haven) Meriden town line to exit 63 on-ramp

• 9 p.m. to 6 a.m. (Monday–Thursday)
• 10 p.m. to 6 a.m. (Friday)
• 10 p.m. to 8 a.m. (Saturday)
• 10 p.m. to 6 a.m. (Sunday)

Limited-access highway ramps

• Monday to Friday, 9 a.m. to 3 p.m. and 6 p.m. to 6 a.m.

Secondary two-lane roads

(One lane in each direction)

• Monday to Friday between 9 a.m. and 3 p.m. and 6 p.m. to 6 a.m.
• Saturday and Sunday between 6 p.m. and 10 a.m.

Secondary multilane roads

(More than one lane in each direction)

• Monday through Friday between 9 a.m. and 3 p.m. and 6 p.m. to 6 a.m.
• Saturday and Sunday between 6 p.m. and 10 a.m.