Accident on A81 comes day after road finally opens.
"This followed standard procedure and, to date, there have been no complaints received from members of the travelling public regarding any issues with the road reopening.
"We encourage all road users to pay close attention and adhere to the Highway Code and all temporary road signs in place throughout the council area."
Politicians and people in Aberfoyle previously called for compensation to be awarded to traders after claims the closure of the route had put people off visiting and spending money in the area.
Ballat Bridge carries water mains from Loch Katrine to Glasgow and was damaged in September 2016 when it was hit by the arm of an earthmover.
Repair work began in September last year and was due to be completed in December, but was put back to spring, and then the start of June, due to the complex nature of the project.
The A81 at Ballat Bridge finally reopened last week after almost nine months of closure - although concerns were raised about the lack of signage to notify people.
The busy route was off-limits to traffic as ScottishWater carried out repairs to the bridge structure - situated between Balfron Station and Ballat crossroads.
Businesses and residents in the area reacted with fury last month when it was revealed that the re-opening had been delayed from its May date as the work was taking longer than expected.
However the road was finally reopened to motorists last Friday afternoon (June 1) after the project was completed.
Ruaridh MacGregor, ScottishWater's regional corporate affairs manager, said: "ScottishWater is delighted that we have completed our work on the installation of crash barrier technology and have been able to have the road fully reopened.
"We thank all affected road users, customers and local businesses for their patience and understanding during this work and again apologise that, due to the complex nature of the work, the project took much longer than we had initially expected."
After the road was reopened the Observer was made aware of some concern about a lack of signage notifying of the road's reopening.
Some people expressed fears that drivers were pulling out of the junction at Indians Road without checking for traffic as they were under the assumption the stretch of A81 ahead was still closed.
And there was an accident on the road on Saturday morning between two vehicles although nobody was injured.
Police confirmed that this took place at 10.53am and involved a silver BMW and a grey and black Renault Captur.
A spokesperson for Stirling Council said:"The main carriageway road was reopened to road users on Friday, June 1, and all road closure and diversion signage Robert Fairnie
Work completed The A81 at Ballat Bridge is now open again