Steven Nielsen
Analyst · Stevens
Thanks, Rick. Now moving to Slide 4 and our review of our first quarter results. As you review our results, please note that we have presented in our release and comments certain revenue amounts, excluding revenues from storm restoration services during this quarter and from businesses acquired during the third quarter of fiscal 2017. Adjusted EBITDA, adjusted net income and adjusted diluted earnings per share, all of which are non-GAAP financial measures. See Slides 14 through 20 for a reconciliation of our non-GAAP measures to GAAP measures.
Revenue was $756.2 million, a decrease of 5.4%. Organic revenue, excluding $15.5 million of storm restoration services in the quarter declined 8.4%. This quarter reflected an increase in demand from 3 key customers as we deployed 1-gigabit wireline networks and grew core market share, offset by near-term moderation by a large customer. Gross margins were 20.55% of revenue, reflecting solid operating performance, offset by the impacts of the decline in revenue. General and administrative expenses were 8.54%.
All of these factors produced adjusted EBITDA of $97.6 million or 12.91% of revenue and adjusted diluted earnings per share of $0.99 compared to $1.67 in the year-ago quarter. This quarter's EPS included a tax benefit of approximately $900,000 due to a new accounting pronouncement.
Operating cash flow was solid, totaling $56.8 million in the quarter. Liquidity was strong as cash and availability under are our credit facility was $425.8 million at the end of the quarter.
During the quarter, we repurchased 200,000 shares of our common stock. Going to Slide 5. Today, a number of major industry participants are deploying significant wireline networks across broad sections of the country. These networks are generally designed to provision bandwidth enabling 1-gigabit speeds to individual consumers.
In addition, emerging wireless technologies are now beginning to drive significant incremental wireline deployments. It is clear that a complementary wireline investment cycle is underway to facilitate what is expected to be a decade-long deployment of fully converged wireless/wireline networks. Notably 1 industry participant has begun to invest in the wireline infrastructure required to enable fully converged wireless/wireline networks.
The industry effort required to deploy these converged networks has and will meaningfully broaden our set of opportunities. Total industry opportunities in aggregate were already without precedent, in our experience, prior to this deployment. We are providing program management, planning, engineering and design, aerial and underground construction and fulfillment services for 1-gigabit deployments. These services are being provided across the country in dozens of Metropolitan areas to a number of customers.
In addition, we have secured a number of converged wireless/wireline multiuse network deployments, planning, engineering and limited construction have begun.
Engineering and construction activity is expected to increase throughout the balance of our second quarter and accelerate into calendar 2018. Customers are continuing to reveal with specificity new multiyear initiatives that are being planned and managed on a market-by-market basis.
Our ability to provide integrated planning, engineering and design, procurement and construction and maintenance services is of particular value to several industry participants.
As with prior initiations of large-scale network deployments, we expect some normal timing volatility and customer spending modulations as network deployment strategies evolve and tactical considerations, primarily permitting impact timing.
We remain confident that our competitively unparalleled scale and market share, as well as are our financial strength, position us well to deliver valuable service to our customers and robust returns for our shareholders.
Now moving to Slide 6. We experience the effects of a strong overall industry environment during the quarter but as expected, saw a continued moderation from a large customer. Organic revenue, excluding storm restoration services, declined 8.4%. Our top 5 customers combined produced 74.9% of revenue, declining 6.8% organically, while all other customers decreased 12.7% organically.
Comcast was our largest customer at 21.8% of total revenue or $165 million, and grew organically 26.5%.
Revenue from AT&T was $143.5 million or 19% of revenue. AT&T was our second largest customer. Revenue from CenturyLink was $143.3 million or 18. 9% of revenue and grew organically 13.9%. CenturyLink was our third largest customer.
Verizon was Dycom's fourth largest customer for the quarter at 10.7% of revenue or $80.6 million. And finally, revenue from Charter was $34 million or 4.5% of revenue, Charter was our fifth largest customer. We are pleased that we have continued to gain profitable market share, extend our geographic reach, and expand our program management and network planning services. In fact, over the last several years, we have meaningfully increased the long-term value of our maintenance business, a trend which we believe will parallel our deployment of 1 gigabit and wireless/wireline converged networks as those deployments dramatically increase the amount of outside plant network that must be maintained.
Going to Slide 7. Backlog at the end of the first quarter was $6.198 billion versus $6.016 billion at the end of the fourth quarter of 2017, an increase of approximately $182 million. Of this backlog, approximately $3.039 billion is expected to be completed in the next 12 months. We are particularly pleased with the increase in our next 12 months backlog as it clearly signals meaningful organic growth for our fiscal 2019, the 12-month period ending January 2019.
Both backlog calculations reflect strong performance as with both new work and renewed existing work. We continue to anticipate substantial future opportunities across a broad array of customers. For Verizon, we were awarded engineering and construction services agreements for converged wireless/wireline multi-use network deployments in multiple markets. With Comcast, we renewed construction and maintenance service agreements in Virginia and fulfillment service agreements in Michigan, Illinois, Mississippi, Louisiana, Alabama and Florida.
With Charter, we renewed a construction and maintenance services agreement in Texas from various customers who extended locating services agreements in New Jersey, Delaware, Maryland, Virginia and Georgia. And finally, we secured rural and municipal broadband projects in South Dakota, Minnesota, Nebraska, Missouri, Arkansas and Virginia.
Headcount increased during the quarter to 14,393.
Now I will turn the call over to Drew for his financial review and outlook.