1st Street - Street & Utility Reconstruction


Project Overview

The project will include reconstruction of the bituminous street, concrete curb and gutter, sidewalk, storm sewer, watermain, and sanitary sewer.

 

1st Street

All of the streets in the project area are exhibiting significant wear and distress.  This is evident on the surface by the widespread cracking, potholing, and scaling.  Some segments of street contain significant settlements, which allows water to pond, infiltrate, and weaken the subgrade.  There are also areas of poor drainage along the edge of pavement near driveways, and in various locations throughout the neighborhood due to curb settlement.  The existing concrete curb and gutter and sidewalks are in poor condition with cracking, chipping, and numerous settlements.  The proposed street section will consist of 8 inches of select granular borrow with 8 inches of class 5 aggregate base and 4 inches of bituminous surfacing.  To provide a consistent width throughout the corridor, the streets will be constructed 32 feet wide measured from curb face to curb face. 

 

In addition, the reconstruction of First Street also allows for another important step to happen for the development of Way Park.  Following the Way Park Master Plan, the portion of First Street through the park will be closed, returning the park to its original shape.  Cul-de-sacs will also be added on both ends of the park in accordance with the Way Park Master Plan.

 

The water system in the project area is made up of 4, 6, 8, and 10-inch diameter mains constructed with cast iron pipe (CIP). Service lines within the area are anticipated to be 3/4 or 1-inch diameter, and their composition may be copper, steel, or lead.  The new system will consist of 8-inch diameter Ductile Iron Pipe (DIP), with the exception of the watermain on Plum Street which will remain 10-inch diameter.  Along with the main replacement, all hydrants and gate valves will be replaced.

 

The existing sanitary sewer system is made up of clay pipe, with the mains being 8-inch diameter, and the service laterals being 4-inch diameter.  The new system will be constructed of 8-inch PVC mains and 4-inch PVC service lateral pipes.

 

The storm sewer system within the project area conveys storm water flows from a 50 acre watershed that includes the project area, as well as a significant area between Second Street and St. Olaf Avenue.  The storm sewer ranges in size from 12 to 24-inch and is constructed in varies materials such as clay, plastic, Reinforced Concrete Pipe (RCP) and Corrugated Metal Pipe (CMP).  The new system will be made up of RCP with pipe sizes ranging from 15-inch to 33-inch. To alleviate flooding, the new storm sewer will be re-aligned along First Street and Linden Street to the current connection point at the intersection of Second Street and Linden Street.  This will allow the storm sewer to be replaced to meet the capacity required for the system, as well as place the storm sewer within a public right-of-way and minimize impacts to residential properties.

 

In addition to the main utility replacements, private water and sanitary services from the Right-of-Way to individual homes will be replaced if it is discovered that the existing material does not meet the requirements of the State Plumbing Code and/or City Standard Technical Specifications.  Costs associated with these replacements will be assessed per the City’s Assessment Ordinance.