South Street and West 9th Street Mini-Roundabout

WATERLOO — A busy intersection just south of downtown will be reconstructed as a roundabout with the aim of improving safety for motorists. Work begins Monday on a mini-roundabout at West Ninth and South streets, just off of U.S. Highway 218 near the Kwik Star. This type of roadway is smaller than a normal roundabout and will fit within the current intersection. It will be the first mini-roundabout in Waterloo. The construction will impact traffic patterns in the area. A signed detour will direct drivers around the road work. Ramp closures expected with Iowa Highway 58, Ridgeway Avenue reconstruction starting next month In December 2020, the city received a Traffic Safety Improvement Program grant of $377,000 from the Iowa Department of Transportation for improving the safety of the intersection. In January, the City Council approved a $523,353 bid from Lodge Construction Inc. of Clarksville on the project. The total project cost is estimated at $526,000. The city’s cost is about $150,000, according to Mohammad Elahi, traffic operations interim director. Elahi said the intersection is a “high crash location.” “In a five-year period, there were 27 accidents which included 10 injury accidents,” he said in an email. “Almost all of the crashes were right-angle crashes with drivers running the stop signs. (The roundabout) can eliminate almost all of these dangerous right-angle collisions.” Sandie Greco retiring after 54 years of serving Waterloo The roundabout is being engineered by Shive-Hattery of Cedar Rapids. A PowerPoint presented to the council by the firm in February 2022 showed the number of large semi trailers using the intersection as very low — about 0.72% of all traffic from 6 a.m. to 6 p.m. The number of total vehicles per day was listed as 9,010. Elahi said the center island and corners of the mini-roundabout are designed to have colored concrete truck aprons. They are used to compensate for the shorter path that rear wheels use as a vehicle goes around a corner. According to the study by Shive-Hattery, Elahi noted, there are no expected traffic complications for vehicles coming off of U.S. Highway 218 once the mini-roundabout is in place. Construction is expected to last until Sept. 1. ----------------------------------------------------------------------------------------------------------------------------------------------------------- The project involves the construction of a mini roundabout at the intersection of South Street and W. 9th Street. The prior proceedings of the City Council referring to the project and the Contract Documents are hereby made a part of this notice and shall be an integral part of the contract to be awarded. Contract Documents means the collection of all the documents prepared for and used while advertising and awarding the contract such as Plans, Standard Specifications, Special Provisions, Form of Contract, Form of Bid, General Conditions of Contract, and all other forms and documents. A performance bond will be required before a contract is awarded. Some of the project's items will by the City of Waterloo, furnishing and installing as needed. A contract will be awarded to the qualified bidder submitting the most favorable bid considering price among other factors. The City reserves the right to reject any or all bids, re-advertise, waive informalities, and consider proposals along with the bid price. Bids may be held by the City for 30 days from the day of the opening of bids prior to awarding the contract. This is a local letting. No federal funds are involved. There is a 5% TSB goal. Liquidated damages will be charged in the amount of $200 per day. A 5% bid security shall accompany the bid in a separate envelope. CITY OF WATERLOO, IOWA Kelley Flechle City Clerk

Division 32 -	Exterior Improvements, Operation and Maintenance of Exterior Improvements.
Division 34 -	Transportation, Operation and Maintenance of Transportation.