Downtown Springfield crews are finishing repairs after a significant water main rupture that occurred Thursday night near the intersection of 5th and Monroe streets, city utility officials said Friday. The break — a roughly 12-foot-long failure in an aging cast-iron pipe — forced temporary power isolations, left hundreds of customers without service and will keep the road closed for about two weeks while replacement work continues.
What failed and what will replace it
City Water, Light and Power officials said the failed section was an older cast-iron pipe likely installed decades ago. Todd LaFountain, CWLP water division chief, said the damaged casting appears to be a mid-20th-century installation and that crews are replacing that brittle material with ductile iron.
“This old cast iron is somewhat brittle, that was installed up to about the late 1960’s,” LaFountain said. “We utilize ductile iron now. It’s got a higher tensile strength, so it will flex with the ground and whatnot.”
LaFountain said ductile iron has a higher tensile strength and could last longer than 100 years, compared with the roughly 100-year design life often associated with older cast-iron mains.
Service impacts and response
The rupture prompted utility crews and the Springfield Fire Department to take safety precautions that included isolating portions of the electric system. Mike Gorsek, CWLP electric division manager, said that shortly after the water main ruptured, the fire department asked the electric department to isolate the area “out of a safety precaution.”
At the peak of the incident, almost 300 customers experienced power interruptions. CWLP worked to reroute switches and restore service; by late Friday afternoon, power service had been restored for all customers. Gorsek said fewer than 50 customers downtown continued to experience problems into Friday before full restoration.
- Location: 5th and Monroe streets, downtown Springfield
- Pipe type failed: cast iron, installation era cited through the late 1960s
- Replacement material: ductile iron, described as having higher tensile strength
- Power customers affected: nearly 300 at peak; fewer than 50 remained without power into late Friday
- Road closure: expected to remain in place for about two weeks while repairs proceed
Timeline of the incident
| Event | When |
|---|---|
| Water main rupture at 5th and Monroe | Thursday night (reported) |
| Peak power outages affecting nearly 300 customers | Thursday night into early Friday |
| Progress on repair and power restoration | Friday; full power restored late Friday afternoon |
| Road closure for replacement work | Expected to last about two weeks |
Photographs from the scene showed a section of broken pipe staged on the ground as crews worked. The image accompanying the original report was credited to Will Stevenson.
Local context and what residents should expect
City officials have said the closure is necessary to fully remove the failed cast-iron section and install the ductile iron replacement. Residents, commuters and downtown businesses should expect restricted access and traffic pattern changes along 5th and Monroe for the duration of the repair. CWLP’s switch rerouting restored service for most customers quickly, but the initial outages underscore how a single large main failure can ripple into electric service precautions and localized disruptions.
Officials described the failure as a casting fault that finally surfaced after decades in the ground. LaFountain noted that cast-iron pipe can provide reliable service for more than a century but is prone to spot failures as it ages, which is why the utility is moving to more resilient materials when replacing sections.
CWLP and city public works crews continue to work at the site. Residents seeking updates on traffic restrictions or service restoration are advised to watch for notices from CWLP and the City of Springfield.
