Polls are open until 7 p.m. tonight in Harris, Fort Bend and Waller counties as voters decide on local bond proposals and state constitutional amendments. For those needing a refresher, check out Community Impact Newspaper's ongoing coverage of the ballot issues and be sure to visit www.communityimpact.com for live results. Katy ISD bond proposal The school district has proposed a $609.2 million bond to build new schools, upgrade existing facilities, implement security and technology upgrades, and purchase transportation equipment. Read up on the issue with our past coverage:

• "Katy ISD’s bond proposal drawing mixed reviews from area residents"
• "Katy ISD bond part of a pattern of increasing school construction costs"
• "MAP: See what Katy ISD’s 2017 bond package has in store for campuses"
• "Katy ISD bond committee votes for projects"

Fort Bend County mobility bond The county has proposed a $218.6 million bond for mobility projects including new roads, road widenings and drainage improvements throughout the county. Among the projects proposed for Precinct 3, which includes Katy, are frontage road segments along the Grand Parkway.

• "$218.6M mobility bond faces Fort Bend County voters this fall"
• "BREAKING: Fort Bend County residents to vote on $218.5M mobility bond Nov. 7"
• "Fort Bend County commissioners finalize mobility bond project plans, schedule special meeting to call election"

Waller County law enforcement center bond The county is proposing a $39.5 million bond to replace its existing jail and sheriff's office, and build new facilities on more than 91,000 square feet. The new jail would double Waller County's inmate capacity and potentially prevent the state from closing its dilapidated existing jail altogether, county officials said. If the bond fails, Waller County expects it will have to house inmates at other county jails starting at an estimated $55 per inmate per day. State constitutional amendments Seven amendments to the state constitution are also on today's ballot, ranging from property tax exemptions and sports team-based foundations to state board office holders. Explanations of each proposed amendment, as well as general polling place information is available in our Local Election Guide.