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Council awards $650,833.90 contract to replace 15 degraded manholes on East Phillip Avenue
Summary
Council authorized the mayor to accept a $650,833.90 bid from Midlands Contracting Inc. to replace 15 manholes on East Phillip Avenue after staff explained hydrogen sulfide damage and the risk of street collapse if left unrepaired.
The North Platte City Council voted April 21 to authorize the mayor to accept a bid from Midlands Contracting Inc. for $650,833.90 to replace 15 manholes on East Phillip Avenue.
City sewer staff explained that hydrogen sulfide gas has degraded concrete in existing manhole structures and that failing manholes could cause street collapse. "They would probably cave in," the staff member said when asked what would happen if the manholes were not replaced.
Staff described improvements in newer manhole construction, including microbial agents and protective coatings intended to extend service life. Council members asked whether the new covers and concrete would resist sulfuric acid and whether the new materials would reduce the frequency of repairs; staff said newer mixes and coatings should significantly extend lifespan.
Motion to accept the bid was made and seconded; the council called the question and approved the contract.
