# Harris County Plat Surety, Performance Periods and Right-of-Way Bonds URL: https://mycontractorsinsurancequote.com/texas/metros/houston/harris-county Updated: 2026-10-29 · Reviewed by the Principal, Gleason Insurance Brokers, LLC Publisher: My Contractors Insurance Quote, a website of Gleason Insurance Brokers, LLC Unincorporated Harris County's infrastructure regulations, in the version dated July 2019, require financial surety before a plat that dedicates public streets is approved: $50 per lot for average frontage under 100 feet, $75 per lot at 100 feet or more and a $2,500 minimum. A one-year performance period follows the record drawing inspection, and the surety is forfeited if inspections are not passed within six months after that anniversary. Work in County or Flood Control District right-of-way carries separate bonds, from $5,000 per road crossing to at least $25,000 on District land. ## Key Decision Points - The Regulations for the Approval and Acceptance of Infrastructure were adopted December 18, 2018, and amended July 9, 2019; later amendments were not confirmed. - Financial surety is a cash deposit, bond or letter of credit: $50 or $75 per lot by frontage, $75 per 100 feet of pavement on commercial and street-dedication plats and at least $2,500. - A one-year performance period runs from the record drawing inspection, and the surety is forfeited if inspections are not passed within six months after the anniversary. - Right-of-way bonds include $5,000 per road crossing, $8 per linear foot of pipe and $40,000 or 100% of cost for turn lanes, bores and open cuts; Flood Control District land starts at $25,000. - The regulations note that under Atlas 14 the 100-year rainfall approximates the former 500-year rainfall, and detention starts at 0.75 acre-feet per acre. ## Unincorporated Harris County and the 2019 Regulations This page covers unincorporated Harris County, where much new development is served by municipal utility districts. Houston and the other cities in the County set their own rules inside their limits, and a city's extraterritorial jurisdiction can bring city requirements into play as well. Near Katy, the city's guarantee rules and district contracts can apply alongside the County's. The Harris County Engineering Department's Regulations for the Approval and Acceptance of Infrastructure were adopted December 18, 2018, took effect January 1, 2019, and were amended and effective July 9, 2019. That is the newest version found, and the County's platting page says the regulations are amended from time to time. Any amendment after July 2019 was not confirmed, so check the current version with the Office of the County Engineer before relying on the figures below. For tracts on the County's west side, compare these rules with [Katy-area plat guarantees and MUD contracts](https://mycontractorsinsurancequote.com/texas/metros/houston/katy). ## Financial Surety Priced per Lot The regulations define financial surety as a cash deposit, bond or letter of credit made under Local Government Code Section 232.004 or 232.0045, and require it before the County approves a plat that dedicates public streets. Unlike counties that price security by roadway foot or by construction cost, Harris County uses a flat schedule: - Residential lots with average road frontage under 100 feet: $50 per lot - Residential lots with average frontage of 100 feet or more: $75 per lot - Commercial and street-dedication plats: $75 per 100 feet of pavement - Minimum in any case: $2,500 How plat security differs among Texas counties is explained under [Texas subdivision improvement bonds](https://mycontractorsinsurancequote.com/construction-surety-bonds/subdivision-improvement-bonds/texas). ### Illustrative scenario: A MUD-Served Section with a County Turn Lane and Flood Control Crossing Cypress Prairie Development is platting a fictional 260-lot section in unincorporated Harris County, served by a utility district that is contracting the water, sewer and drainage. With average frontage under 100 feet, its financial surety to the County is $13,000. The project also needs a turn lane on a County road, bonded at the greater of $40,000 or 100% of construction cost, and an outfall across Flood Control District right-of-way, bonded at no less than $25,000. Because the detention outfall is pumped, the design uses the 1.0 acre-feet per acre rate. At final inspection, the developer elects to keep the surety in place so its ongoing duty is limited to latent defects, and its broker checks completed-operations and contractual liability terms against the County's indemnity clause. The company and details are hypothetical; a real program depends on the County's current requirements, the surety and carriers involved and the firm's own risk. ## What a Small Plat Bond Does and Does Not Cover Because the schedule is per lot, a 300-lot section might post roughly $15,000 in surety, far less than the street cost. The amount is a performance commitment to the County's acceptance process, not a measure of the cost to finish the work. In much of unincorporated Harris County, the water, sewer and drainage are built under a utility district's contracts with their own bond requirements, and the developer's construction lenders and partners typically look to those contracts and the contractor's performance and payment bonds for completion security. That split matters for insurance as well. The plat surety names the County, while district contracts, owner contracts and lender agreements set the insurance terms that apply to the work. Statewide developer bonding and insurance terms are summarized under [Texas developer bond and insurance rules](https://mycontractorsinsurancequote.com/texas/audiences/developers). ## The One-Year Performance Period and Forfeiture The performance period ends one calendar year after the date of the Passing of the Record Drawing Inspection. At the final inspection, the developer chooses one of two paths: have the surety retained, in which case the developer is responsible for latent defects only, or have it released, in which case the developer remains responsible for all deficient items. If inspections are not passed within six months after the anniversary, the regulations say the financial surety will be forfeited to Harris County. The choice is worth making deliberately with the surety and the contractor. Keeping the surety in place narrows the developer's ongoing duty to latent defects; releasing it frees capacity but leaves broader responsibility. Either way, completed-operations coverage that lasts past the anniversary helps, subject to underwriting and policy terms. How performance-period security differs from a performance bond is explained under [maintenance and warranty bonds](https://mycontractorsinsurancequote.com/construction-surety-bonds/maintenance-warranty-bonds). ## County, Flood Control and Toll Road Right-of-Way Bonds The Rules for Construction of Facilities within Harris County and HCFCD Rights-of-Way, amended July 28, 2020, and effective October 1, 2020, set bond amounts in Table I. The Office of the County Engineer's current notification page repeats them and states a $5,000 minimum bond: - County right-of-way: $5,000 per road crossing and $8 per linear foot of facility, or $2 for irrigation - Traffic signals: $80,000 or 100% of construction cost, whichever is greater - Median modifications, turn lanes, road widening, bores, tunnels and open cuts: $40,000 or 100% of construction cost, whichever is greater - Flood Control District right-of-way: at least $25,000, or 100% of construction cost above that - Toll Road Authority right-of-way: the County table lists $55,000 on that row, or 100% of cost; confirm the current amount with the agency How other Texas agencies secure right-of-way work is explained under [Texas right-of-way and encroachment permit bonds](https://mycontractorsinsurancequote.com/construction-surety-bonds/encroachment-permit-bonds/texas). ## Perpetual Bonds, the One-Year Guarantee and Insurance Terms A perpetual bond is allowed, which suits utility contractors working in County right-of-way often. The applicant guarantees and maintains all work in the right-of-way for one year after passing the County inspection, and the notification page says the one-year warranty must be requested 90 days before the bond expires. The rules also require the owner of any facility to indemnify, defend and hold harmless the County and the Flood Control District. No insurance clause was found in the right-of-way rules or the infrastructure regulations, and a 2025 draft of revised driveway and culvert rules, presented to Commissioners Court in June 2025 after 20 years without change, showed no bond or insurance term. Insurance terms typically come from the permit, the owner contract or a municipal utility district agreement, so confirm them with the County and the owner. The indemnity duty is broad, and contractual liability coverage under the contractor's policy is worth checking against it, subject to the policy terms. Bonding for contractors in public right-of-way is summarized under [Texas civil and infrastructure contractor bonding](https://mycontractorsinsurancequote.com/texas/audiences/civil-infrastructure-contractors). ## Atlas 14 Detention and Utility District Agreements The regulations' preface explains that under Atlas 14 the updated 100-year rainfall approximates the former 500-year rainfall. Minimum slab elevations are 18 inches above the 100-year floodplain or at or above the 500-year elevation, whichever is greater. Detention starts at 0.75 acre-feet per acre, or 1.0 acre-feet per acre for pumped or roadside-ditch outfalls. Where a storm system uses sluice gates, the utility district must sign an interlocal agreement and accept the gate system for maintenance. The Flood Control District's 2018 bond program, $2.5 billion approved by voters on August 25, 2018, continues to fund flood damage reduction work, and that work brings its own public bid and bond requirements for civil contractors. Pollution coverage for detention and drainage contractors is covered under [site development pollution liability](https://mycontractorsinsurancequote.com/contractors-pollution-liability-insurance/site-development). ## Comparing Harris with Fort Bend and Montgomery Harris County's per-lot surety is small next to Fort Bend's per-foot schedule and Montgomery County's per-foot and per-acre-foot totals, but its forfeiture rule and the developer's latent-defect choice carry their own weight. Developers working across the region should expect different security amounts and release events on similar subdivisions. The north county's requirements are laid out under [Montgomery County plat bonds and CLOMR bonds](https://mycontractorsinsurancequote.com/texas/metros/houston/montgomery-county). ## Before You Ask for a Quote ### What to Gather - The current Infrastructure Regulations from the Office of the County Engineer, with any amendment after July 2019 - Lot count and average road frontage, or pavement length for commercial plats - Right-of-way work list: road crossings, linear feet of facility, signals, turn lanes, bores and open cuts - Any Flood Control District or toll road crossings and their construction cost - The utility district agreement, including any interlocal agreement for sluice gates - Drainage and slab elevation calculations prepared to Atlas 14 ### What to Ask the Insurer or Surety - Have the Infrastructure Regulations been amended since July 9, 2019? - Should the surety be retained or released at final inspection? - Would a perpetual right-of-way bond fit our volume of County work? - Which insurance terms does the district agreement or owner contract require, since the County rules state none? - Does our contractual liability coverage respond to the County and Flood Control District indemnity clause? - When must the one-year right-of-way warranty be requested before the bond expires? ## Broker Notes **Quick Answer:** Unincorporated Harris County requires financial surety of $50 or $75 per lot by frontage, at least $2,500, before approving a plat with public streets, followed by a one-year performance period with forfeiture if inspections are not passed within six months after the anniversary. **Common Mistake:** Treating the small per-lot surety as the project's completion security. Utility district contracts, owner contracts and right-of-way bonds typically carry much larger obligations and their own terms. **Broker Perspective:** A broker typically separates the County plat surety, the right-of-way bonds and the district contract bonds, then matches insurance to whichever document states the terms. **Coverage Impact:** The right-of-way rules require the facility owner to indemnify and defend the County and the Flood Control District, and whether a contractor policy responds depends on its contractual liability wording. ## Questions Buyers Ask ### How much financial surety does Harris County require for a residential plat? In the July 2019 version of the Infrastructure Regulations, it is $50 per lot where average road frontage is under 100 feet and $75 per lot at 100 feet or more, with a $2,500 minimum. Confirm with the Office of the County Engineer whether the schedule has changed since then. ### What happens at the end of the Harris County performance period? The period ends one calendar year after the record drawing inspection is passed. At final inspection the developer chooses to have the surety retained, with responsibility for latent defects only, or released, with responsibility for all deficient items. If inspections are not passed within six months after the anniversary, the surety is forfeited to the County. ### What bond is required for work in Harris County Flood Control District right-of-way? Table I of the joint right-of-way rules sets a minimum of $25,000 for Flood Control District right-of-way, rising to 100% of construction cost when the cost exceeds that amount. The facility owner must also indemnify the County and the District. ### Does Harris County set insurance requirements for right-of-way contractors? No insurance clause was found in the right-of-way rules or the infrastructure regulations read for this page; the rules contain an indemnity clause. Insurance terms typically come from the permit, the owner contract or a utility district agreement, so confirm them with the County and the owner. ### How does Atlas 14 change detention in unincorporated Harris County? The regulations note that the updated 100-year rainfall approximates the former 500-year rainfall. Detention starts at 0.75 acre-feet per acre, or 1.0 for pumped or roadside-ditch outfalls, and minimum slabs sit 18 inches above the 100-year floodplain or at or above the 500-year elevation, whichever is greater. ## Official Sources 1. [Regulations of Harris County for the Approval and Acceptance of Infrastructure (amended and effective July 9, 2019)](https://www.eng.hctx.net/portals/23/infraregs-effect190709.pdf), Harris County Engineering Department. Financial surety under LGC 232.004 or 232.0045; $50 and $75 per lot, $75 per 100 feet of pavement, $2,500 minimum; one-year performance period from the record drawing inspection; retain or release choice; forfeiture; Atlas 14 preface; slab elevation; detention rates; utility district interlocal agreement for sluice gates. Verified 2026-10-25. 2. [Rules for Construction of Facilities within Harris County and HCFCD Rights-of-Way (amended July 28, 2020, effective October 1, 2020)](https://oce.harriscountytx.gov/Portals/43/Documents/Publications/Construction-in-HC-or-HCFCD-ROW-Regs.pdf), Harris County, Harris County Toll Road Authority and Harris County Flood Control District. Table I bond amounts for County, Flood Control District and toll road right-of-way; perpetual bond; one-year guarantee after County inspection; indemnity clause. Verified 2026-10-25. 3. [Public Works Right-of-Way Notifications](https://oce.harriscountytx.gov/Services/Permits/Permits-A-to-Z/Public-Works-Right-of-Way-Notifications), Harris County Office of the County Engineer. $5,000 minimum bond; one-year warranty request 90 days before the bond expiration date. Verified 2026-10-25. 4. [Regulations for Driveways and Culverts in Right-of-Way (Commissioners Court agenda, June 12, 2025)](https://cclerk.hctx.net/commctagenda/2025/06-12-2025/Items/0099_1_25-3459-2025%20Regulations%20for%20Driveways%20and%20Culverts%20in%20ROW.pdf), Harris County Commissioners Court and County Engineer. Driveway rules unchanged since 2005; revised draft presented in 2025 with no bond or insurance term. Verified 2026-10-25. 5. [2018 Bond Program](https://www.hcfcd.org/Activity/2018-Bond-Program), Harris County Flood Control District. $2.5 billion in flood damage reduction bonds approved by voters August 25, 2018. Verified 2026-10-25. ## Related Decisions - [Harris County Flood Control District permit and bond terms](https://mycontractorsinsurancequote.com/construction-surety-bonds/public-agency-contractor-requirements/harris-county-flood-control-district) - [Houston metro construction insurance](https://mycontractorsinsurancequote.com/texas/metros/houston) - [Fort Bend County plat bonds and right-of-way security](https://mycontractorsinsurancequote.com/texas/metros/houston/fort-bend-county) - [Katy-area development bonds and MUD contracts](https://mycontractorsinsurancequote.com/texas/metros/houston/katy) - [storm drain contractor insurance](https://mycontractorsinsurancequote.com/who-we-serve/civil-underground-utilities/storm-drain-contractors) - [completed-operations coverage after acceptance](https://mycontractorsinsurancequote.com/project-specific-liability-insurance/completed-operations) --- Start a quote request: https://mycontractorsinsurancequote.com/get-a-quote · Call 844-978-7283 Contract and insurance reviews are a courtesy service that may be available at times, depending on our workload and on the size, timing and complexity of the project. A review is not guaranteed and is limited to insurance considerations. It is not legal advice and is not a substitute for advice from your own legal counsel, which you may need before signing a contract or obtaining coverage. Insurance and surety services are provided through Gleason Insurance Brokers, LLC. Site information is educational and does not constitute legal advice, a binder, an offer of coverage, a guarantee of eligibility or confirmation of policy terms. Insurance conditions are governed by actual issued policies; surety rights and obligations are governed by bond and indemnity documents.