Time for a dip:

Boulder: The Spruce Pool, 2102 Spruce St., is open. The Boulder Reservoir, 5565 N. 51st St., will open Saturday. The Scott Carpenter Pool, 1505 30th St., will open Tuesday.

Lafayette: The LaMont Does pool, 500 E. South Boulder Road, opens Saturday.

Superior: The North Pool, 1650 S. Indiana Ave., and the South Pool, 3300 Huron Peak Ave., will open Friday.

Louisville: The Memory Square Pool, 801 Grant St., opens Saturday.

Longmont: The Sunset Pool, 1900 Longs Peak Ave., will open Friday. The Roosevelt pool, 903 Eighth Ave., and the Kanemoto pool, 1151 S. Pratt Parkway, will open June 1.

Broomfield: The Bay Aquatic Park, 250 Lamar St., opens Saturday.

Boulder's Scott Carpenter Pool will open Tuesday -- later than usual because of repairs delayed by an exceptionally snowy spring -- and new this year is a three-hour parking limit in the nearby lot.

For those who want to make swimming part of their Memorial Day weekend plans, though, the Boulder Reservoir is opening Saturday, and Spruce Pool, 2102 Spruce St., opened earlier this month.

City officials last week installed three-hour parking signs at Scott Carpenter, 1505 30th St., and the new rule will go into effect Tuesday. The parking restrictions will be in place from 8 a.m. to 5 p.m. Monday through Friday.

Jennifer Bray, a spokeswoman for the city, said parks and recreation officials suspect that employees of nearby businesses, including some at the University of Colorado's eastern offices and contractors for the neighboring fire department, have been parking all day in the lot's spaces. Also, students may have been parking there and taking the bus to campus.

"This is a test program to see if this will help make more parking available for park and pool patrons at Scott Carpenter," Bray said. "We don't want to have folks parking there for their eight-to-10-hour work days."

Bray said the city doesn't want parking lots to be so full that families with young children are forced to park farther away from the park and pool, crossing busy streets to get there.

This year, parking officers will patrol the lot and issue warnings in the first week and $20 tickets in subsequent weeks to vehicles violating the three-hour rule.

The new parking rule resonates with Riley Asher, a nanny in Boulder who took three kids to the park Tuesday.

"We walk across the street holding hands in a chain, and there's usually one kid walking faster than another," Asher said. "I can't imagine trying to cross a busy street like that."

If Scott Carpenter patrons expect they'll be in the lot for longer than three hours, it's possible they can get a permit from the pool indicating so.

City officials had been hoping to open Scott Carpenter Pool by Memorial Day, but snow and rainstorms in April and May delayed maintenance projects at the pool, including a major paint job.

Between now and Tuesday, staff members will be filling up the pool, heating the water to the appropriate temperature, adjusting the filtration and chlorination systems and putting finishing touches on the pool area.

Lisa Williams, a junior at CU who nannies, spent Tuesday afternoon at the "rocket park," as the kids call it. They chased squirrels and played on the playground but have been eyeing the nearby pool and big, yellow winding water slide.

"They've been asking since February, 'When is it going to open?'" Williams said. "I've been telling them that they've just got to clean it up some more and put water in the pool."

The Scott Carpenter Pool features a six-lane, 50-meter lap pool, a leisure pool with a large slide and two springboards.

The pool will remain open through Sept. 15.

Out at the Boulder Reservoir, visitors might notice new improvements.

Voters in 2011 approved a Capital Improvement Bond that funded improvements at the reservoir, including roadway and parking lot work. There's also a new entry station to help reduce lines, and it's powered by solar-paneled rooftops. The city also made improvements to its water, sewer and storm water infrastructure and upgraded the aquatic nuisance species inspection station.

Contact Camera Staff Writer Brittany Anas at 303-473-1132 or anasb@dailycamera.com.