The city has been widening the portion of the iconic street between Monte Vista and Central avenues, adding sidewalks, curbs, gutters, nostalgic street lighting, bicycle lanes, landscaping and a raised median.
The project is expected to be complete by June.
"It's on track timewise. The contractor is 50 percent complete, and he seems to be moving along fairly well," said Rosemary Hoerning, the city's public works director.
During construction, travellers have been faced with detours, lane closures, uneven pavement and small makeshift driveways into businesses.
City engineers have been monitoring the traffic along the corridor, said Bob Critchfield, principal engineer for the city's engineering division.
"We ourselves go out and we watch the traffic," he said. "We're not seeing anything other than your typical traffic issue with a construction project."
Businesses along Foothill Boulevard also want patrons to know that they are open during construction and have posted signs along the road.
Karen Wright, co-owner of JB's Pools & Ponds Inc. on the corner of Monte Vista and Foothill, said business has been affected due to the construction surrounding the business' entrance.
"Some people say, well, it's your slow season you're a pool store. However we sell firewood also," she said. "That has been a real concern because people (thinking) it's too hard to get in - I didn't know how to get in."
Wright and her husband David have been working with the city on the project and its impact on the business once it's complete as well as during construction.
"We're hopeful that things will brighten up and will help," she said.
Wright said delivery trucks will now have to be rerouted to enter through the Monte Vista entrance.
"We worked with the engineers and so hopefully the Monte Vista access will accommodate the large delivery tractor trailer," she said.
The city secured $1 million in funding for its Foothill widening improvement project from the state Transportation Commission.
The total cost of construction is expected to be $6.3 million, which will be funded through grants, enterprise funds and other funds.
No general funds will be used for the project, Hoerning said.
About $1 million in funding was part of an allocation of $347 million for 47 projects aimed at bolstering the state's economy and providing congestion relief to motorists.
"It was kind of a pretty complex process," Hoerning said. "It was really fortunate that the city was able to secure the million through the California Transportation Commission."
Reach Sandra via email, call her at 909-483-8555, or find her on Twitter @UplandNow .