Revenue was $727.5 million, a decrease of 10.7%.
Organic revenue excluding $3.9 million of storm restoration services in the quarter declined 11.1%.
As we deployed 1 gigabit wireline networks, wireless/wireline converged networks and wireless networks this quarter reflected an increase in demand from two of our top five customers.
Gross margins were 14.8% of revenue, reflecting the continued impacts of the complexity of a large customer program.
General and administrative expenses were 9.2% and all of these factors produced adjusted EBITDA of $44.1 million or 6.1% of revenue.
And adjusted loss per share of $0.04 compared to earnings per share of $0.36 in the year ago quarter.
Liquidity was strong at $477.4 million and operating cash flow was $41.5 million.
Finally, during the quarter we issued $500 million in 4.5% senior notes due in April 2029, and resized and extended our credit facility through April of 2026.
These wireline networks are generally designed to provision 1 gigabit network speeds to individual consumers and businesses, either directly or wirelessly using 5G technologies.
We are providing program management planning, engineering and design, aerial and underground and wireless construction and fulfillment services for 1 gigabit deployments.
During the quarter, organic revenue decreased 11.1%.
Our top five customers combined produced 68.2% of revenue, decreasing 23% organically.
All other customers increased 31.9% organically.
AT&T was our largest customer at 21.4% of total revenue or $155.6 million.
AT&T grew 0.9% organically.
Revenue from Comcast was $131.1 million or 18% of revenue.
Comcast was Dycom's second largest customer and grew organically 10.7%.
Verizon was our third largest customer at 12.6% of revenue or $91.5 million.
Lumen was our fourth largest customer at 485.8 million or 11.8% of revenue.
And finally, revenue from Windstream was $32.1 million or 4.4% of revenue.
In fact, the 31.9% organic growth rate with these customers is the highest growth rate in at least nine years.
Of note, fiber construction revenue from electric utilities was $47 million in the quarter or 6.5% of total revenue.
This activity increased organically 92.1% year-over-year.
In fact, over the last several years, we have meaningfully increased the long-term value of our maintenance and operations business, a trend which we believe will parallel our deployment of 1 gigabit wireline direct and wireless/wireline converged networks, as those deployments dramatically increase the amount of outside plant network that must be extended and maintained.
Despite this overall industry trend, we were recently notified by customer representing less than 5% of our revenue that it had decided to in-source a portion of the construction and maintenance services that are currently provided for them by us as well as a number of other suppliers.
Backlog at the end of the first quarter was $6.528 billion versus $6.81 billion at the end of the January 2021 quarter, decreasing approximately $282 million.
Of this backlog, approximately $2.746 billion is expected to be completed in the next 12 months.
headcount increased during the quarter to 14,331.
Contract revenues for Q1 were $727.5 million and organic revenue declined 11.1%.
Adjusted EBITDA was $44.1 million or 6.1% of revenue.
Gross margins were 14.8% in Q1 and decreased 169 basis points from Q1 '21.
G&A expense increased 112 basis points, reflecting higher stock-based compensation and administrative and other costs.
Non-GAAP adjusted net loss was $0.04 per share in Q1 '22, compared to net income of $0.36 per share in Q1 '21.
Over the past four quarters, we have reduced notional net debt by $185.2 million.
During Q1, we issued $500 million of 4.5% senior unsecured eight-year notes due April 2029.
We repaid $105 million of revolver borrowings and $71.9 million of term loan borrowings, and we resized and extended our senior credit facility through April 2026.
Cash and equivalents were $330.6 million at the end of Q1.
$58.3 million is expected to be used to repay our convertible notes due September 2021.
We ended the quarter with $500 million of senior unsecured notes, $350 million of term loan, no revolver borrowings, and $58.3 million principal amount of convertible notes.
As of Q1, our liquidity was strong at $477.4 million, and we continue to maintain a strong balance sheet.
Operating cash flows have remained strong and totaled $41.5 million in the quarter.
The combined DSOs of accounts receivable and net contract assets were at 128 days, an improvement of eight days sequentially from Q4 '21.
Capital expenditures were $28.6 million during Q1 net of disposal proceeds, and gross capex was $31.6 million.
Capital expenditures net of disposals for fiscal 2022 are expected to range from $105 to million to $125 million, a reduction of $40 million when the midpoint as compared to the midpoint of the prior outlook.
For Q2 2022, the company expects contract revenues to range from in-line to modestly lower as compared to Q2 2021, and expects non-GAAP adjusted EBITDA as a percentage of contract revenues to decrease compared to Q2 2021.
We expect the year-over-year gross margin pressure of approximately 200 basis points from the impact of a large customer program and from revenue declines for other large customers that are expected to have lower spending in the first half of this calendar year.
We expect approximately $8.7 million of non-GAAP adjusted interest expense for the components listed as well as $0.7 million for the amortization of the debt discount on convertible notes for total interest expense of approximately $9.4 million during Q2.
We expect the non-GAAP effective income tax rate of approximately 27% and diluted shares of $31.3 million.
Telephone companies are deploying fiber to the home to enable 1 gigabit high speed connections, increasingly rural electric utilities are doing the same.

Summary:
And adjusted loss per share of $0.04 compared to earnings per share of $0.36 in the year ago quarter.
Backlog at the end of the first quarter was $6.528 billion versus $6.81 billion at the end of the January 2021 quarter, decreasing approximately $282 million.
Non-GAAP adjusted net loss was $0.04 per share in Q1 '22, compared to net income of $0.36 per share in Q1 '21.
For Q2 2022, the company expects contract revenues to range from in-line to modestly lower as compared to Q2 2021, and expects non-GAAP adjusted EBITDA as a percentage of contract revenues to decrease compared to Q2 2021.